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      id="t_8_b1a70f95_1fd4_6389_d641_844a8ecf2868">STLDX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_1_f040c96d_a50a_4ee3_992e_c2c007983383">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;&#xae;&lt;/sup&gt; Dynamic 2030 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000011998Member"
      id="t_2_bee33041_c0b5_4920_81d2_839e0ba101b4">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_3_13180d26_8f1f_4f57_8807_46e658a78a12">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000011998Member"
      id="t_4_61b5119b_fcf8_413e_ab9a_a59b914444a8">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000011998Member"
      id="t_5_bc8899b9_03e0_4147_9fa5_779265b661aa">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_9_9f46fef1_240c_edec_7231_dd3855387d68"> &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin-bottom: -0.18pt;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="break-inside: avoid; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;51&lt;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;0.48&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="break-inside: avoid; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); margin-bottom: 0px; padding: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); margin-bottom: 0px; padding: 0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000011998Member"
      decimals="INF"
      id="h_1_e2ae71bd_57bb_44b3_978e_d5f8ddff5d7e"
      unitRef="USD">51</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000011998Member"
      decimals="4"
      id="h_2_30e2845b_46b6_47e3_a6cf_87431b83897d"
      unitRef="pure">0.0048</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_10_d1548f0d_ffaa_f751_3f6b_bcb319f09e6a"> &lt;div style="margin-bottom: 0px;"&gt; &lt;div style="break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin-bottom: -0.18pt; margin-top: 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 13.60%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2030 Fund Custom Benchmark returned 14.33%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin-bottom: 3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin-bottom: 3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin-bottom: 3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin-bottom: 3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin-bottom: 3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin-bottom: 3.5pt;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt; </oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_11_05fca5f2_7e26_17fe_73e2_08c2f53e10f4"> &lt;div style="break-inside: avoid;"&gt; &lt;div style="margin-bottom: 5pt;"&gt; &lt;div style="break-inside: avoid;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin-bottom: -0.18pt;"&gt;Fund performance&lt;/div&gt; &lt;div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top: 5pt; margin-bottom: 5pt;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6660144.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; color: rgb(0, 0, 0); margin-bottom: 0px; padding: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_12_3122df60_0c4e_674a_3d13_cae40207bc64"> 
&lt;table style="break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: none; border-bottom-width: initial; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;13.60&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;6.28&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;8.36&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Russell 1000&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;17.37&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;13.59&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;14.59&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;7.30&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;(0.36&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.01&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;LifePath Dynamic 2030 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;14.33&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;5.95&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;7.94&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AvgAnnlRtrTableTextBlock>
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      decimals="4"
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      unitRef="pure">0.1360</oef:AvgAnnlRtrPct>
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      id="h_4_b9c271fb_d1e0_46b4_9b14_eaa992eccfc4"
      unitRef="pure">0.0628</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_5_8ebf029c_776b_408f_900b_e9a21084cee9"
      unitRef="pure">0.0836</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_15_3186b5ae_6200_5f3d_1a2d_ad986a4fa220">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      decimals="4"
      id="h_6_a7756fb8_8268_44ed_8bb8_3f62833ea66e"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_7_4c423ae8_a226_4d55_9c54_04566689ccd6"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_8_52fb8710_985f_4506_9010_0664195acf7c"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_16_43f61e47_610b_7481_d347_327895301394">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_9_8efe6eb0_cd3f_458c_b122_b1c6c0da7306"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_10_b94c52fd_8f95_4447_a14f_8e17aee147e0"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_11_a80fc764_e0b2_43e4_9586_9e0269c16c2f"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      id="t_17_57f2c064_d4aa_4a8f_18f7_311621033162">LifePath Dynamic 2030 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      decimals="4"
      id="h_12_88e840b0_bc6d_426b_9f40_0a747b7c9322"
      unitRef="pure">0.1433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      decimals="4"
      id="h_13_0be56979_f71e_4a2d_a977_b313e769fb1d"
      unitRef="pure">0.0595</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      decimals="4"
      id="h_14_90203158_e4f3_466f_ad72_929919f51cd7"
      unitRef="pure">0.0794</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_13_11721dcf_281d_b43f_e80f_18cb9749afa4"> 
&lt;table style="break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;539,904,136&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"&gt;39&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;525,171&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;19&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000011998Member"
      decimals="INF"
      id="h_15_770d9578_ef27_4069_bb25_b96193607286"
      unitRef="USD">539904136</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000011998Member"
      decimals="INF"
      id="h_16_fad07551_84f1_40ba_973a_ebc4917d658f"
      unitRef="Holding">39</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000011998Member"
      decimals="INF"
      id="h_17_4ef7e163_08f5_46a5_be45_abb1ff0613f7"
      unitRef="USD">525171</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000011998Member"
      decimals="4"
      id="h_18_595ac91e_fefa_4a2b_a18d_535f508d1e9b"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_23_306284db_1714_0420_552e_e6d3104058fd"> &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); margin-bottom: 6pt; padding: 0px;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2030 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2030 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt; </oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000011998Member"
      id="t_18_5549e61f_bf84_0831_42e7_70271b581a6c">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_19_c6685731_f279_ff59_2187_ba70642035a0">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_20_8b4c2afd_c363_a430_60e9_ab889f75b45d">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_24_18b80d2c_5b61_56b7_faa6_26758730c668">&lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin-bottom: -0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;55.5&lt;/td&gt; 
&lt;td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;35.1&lt;/td&gt; 
&lt;td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;10.1&lt;/td&gt; 
&lt;td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;(0.7&lt;/td&gt; 
&lt;td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Security&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;30.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;23.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;10.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;8.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;3.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse: collapse; break-inside: avoid; width: 100%; margin-top: 0px;"&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0); padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); margin-bottom: 0px; padding: 0px;"&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); margin-bottom: 0px; padding: 0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); margin-bottom: 0px; padding: 0px;"&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: 100%; padding: 0;"&gt; &lt;div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); margin-bottom: 0px; padding: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_19_dec2d18b_4d24_4150_96b0_5523fb005e50"
      unitRef="pure">0.555</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_20_854aa28d_4612_43d7_a4fa_389b44d82dd4"
      unitRef="pure">0.351</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_21_a45439c1_8428_4879_9056_c6ea6422974f"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_22_948fd285_259e_4093_a0b7_e7b8f438a4c1"
      unitRef="pure">-0.007</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000011998Member"
      id="t_25_485a56a7_0733_f177_afa8_7ae979106c3d">
&lt;table style="break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Security&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;30.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;23.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;10.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;8.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;3.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0);"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_32_1874daaf_d0e8_8c6a_16da_8783c2f0ca4a"
      unitRef="pure">0.304</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_23_337f072d_6a7d_4b4d_aa5a_e6fda70beb64"
      unitRef="pure">0.232</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_24_391eea1e_ef52_404b_a4b8_0e9902749cd4"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_25_9919c451_04f9_4a64_a62d_8dfe373ff184"
      unitRef="pure">0.082</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_26_7acf2e09_70da_402e_a369_976d856e0b6c"
      unitRef="pure">0.054</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_27_9f9f41c7_a13a_4979_b662_47b8d30eafe7"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_28_c938c092_0a9f_4477_b560_d4908c0f19d3"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_29_4f35708d_f6f1_4f27_9431_e9c9e490dbcf"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_30_26fb2c1f_f4e9_4073_bc03_e04a46969a48"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011998Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_31_1f8f4b24_f854_45e4_b274_e8d72c23ede9"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000011997Member"
      id="t_19_d94d5fb8_cbae_dc89_5d4e_799c61aef30f">BlackRock LifePath&#xae; Dynamic 2030 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000011997Member"
      id="t_20_7efeaa56_69ab_7a94_82fb_3aedae99bddf">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000011997Member"
      id="t_21_348029ce_86ae_97e0_9aaf_a399c3447cc8">LPRDX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_10_019d44dc_3924_4833_a98f_af76c49351de">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2030 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000011997Member"
      id="t_11_2a628fde_9881_4634_86dd_dddad4bff077">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_12_6efd64cb_22dc_432e_b54d_d44a96007f90">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000011997Member"
      id="t_13_ff429711_0c10_4a69_bc0a_e8db1cf7c43b">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000011997Member"
      id="t_14_0ff466f0_e668_4a12_b798_83ac0557e6b2">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_22_0a0be467_051c_6794_44bf_ada30c9716dd">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;78&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.73&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000011997Member"
      decimals="INF"
      id="h_32_15894453_e7ba_43c0_8d17_0073d20d0325"
      unitRef="USD">78</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000011997Member"
      decimals="4"
      id="h_33_794bbee1_78f9_4147_96d4_10009181ea36"
      unitRef="pure">0.0073</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_23_461df274_e93a_eaeb_4d38_ef1caa4dbb5e">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 13.27%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2030 Fund Custom Benchmark returned 14.33%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_24_07707d5e_a16f_e2fc_a724_3a24339c487c">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6660093.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_25_a8203a90_231d_38ae_658f_06c5ce061169">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.27&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.01&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.09&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.32&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.87&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.51&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2030 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.33&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.95&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.94&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_31_073aa3cc_355e_de83_878a_269f8965800b">LifePath Dynamic 2030 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
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&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;539,904,136&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;39&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;525,171&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;19&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      id="h_50_df51dc8c_5370_4608_aea0_da385b8773d4"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="t_37_0d1b8c99_a0a4_082f_60d1_61ea492b9572">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2030 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2030 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      id="t_33_eeb5ad2e_bb8c_6611_675a_c81b7b97d654">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
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      id="t_34_e70ee33e_eae8_afc3_0eb8_26d39196fa59">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_35_b2ebdc77_2a6b_1272_fd4a_42b25efe0a7e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;55.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_53_c78061f1_395c_46f1_b24c_af8068ee693a"
      unitRef="pure">0.555</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_54_1b643e0a_9b3d_49fa_b999_cdf92da6a7c8"
      unitRef="pure">0.351</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_55_7682f07e_746a_4087_a718_476faca7218e"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_56_89643b65_cb84_41f9_82d5_bc9fc9611210"
      unitRef="pure">-0.007</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000011997Member"
      id="t_36_26744eb4_fede_297c_0990_6e28b18e5d8f">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_66_06c3228f_79ab_efff_e146_e9fd253224b4"
      unitRef="pure">0.304</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_57_b0c7744e_b71a_41e8_9c49_9aa76778c469"
      unitRef="pure">0.232</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_58_7f33bf2e_6190_4fa8_bba2_edd4552d3241"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_59_c9500e36_f305_476e_bc5d_78f4848a0dd4"
      unitRef="pure">0.082</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_60_aedd78ff_844d_4ca6_a5d9_a7ffde388ad2"
      unitRef="pure">0.054</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_61_a45b0051_90fe_4f20_b1fa_3d835ca2f1da"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_62_3f02dcda_68b2_4f9b_8cd6_dbdf0bbdcd59"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_63_d6c5cba9_d0b0_46b2_9127_dfee3c288245"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_64_958f84c4_4a4e_4a90_a77a_a6b7a8560faf"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011997Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_65_870f3d3d_5c69_4dd1_837f_fa2fba01e23b"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000088835Member"
      id="t_28_f478cf09_9a89_7abc_b8cc_a8a2af4a46a4">BlackRock LifePath&#xae; Dynamic 2030 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000088835Member"
      id="t_29_52df06ff_c218_1626_4ced_f8c0e5ad20ac">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000088835Member"
      id="t_30_9672c36a_3257_0584_7b05_9b550ea108d8">LPCNX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_19_58aafc74_432e_415d_bf3a_ff9cdb443b69">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2030 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000088835Member"
      id="t_20_97cdc9a1_182c_44e2_9610_9463f731981c">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_21_dfcade1e_ab66_49d2_ade5_67679fe4859a">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000088835Member"
      id="t_22_6271c19f_2d07_4afd_a837_8d0372450c37">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000088835Member"
      id="t_23_28f8c266_55f1_4e7a_a14b_ffa682df0f26">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_31_59b75e11_d33f_727c_9ebc_a06945844c35">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;157&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.48&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000088835Member"
      decimals="INF"
      id="h_66_266f01c2_1854_43b5_a66f_34b71f3a831d"
      unitRef="USD">157</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000088835Member"
      decimals="4"
      id="h_67_fe093f39_a79f_4103_8d17_5b5d972bf857"
      unitRef="pure">0.0148</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_32_7a90091d_2a39_1d9b_636a_8120cbcdaa41">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 12.51%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2030 Fund Custom Benchmark returned 14.33%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_33_178ee0f3_a5bc_f84e_8fe1_b07c89b0e0ab">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6660080.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_34_1f1d63ff_ca97_2310_5c99_76096d8744e4">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.51&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.22&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.42&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.51&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.22&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.42&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2030 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.33&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.95&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.94&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="h_69_50f17c85_97de_4fe8_b548_56885fb29b25"
      unitRef="pure">0.0522</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_70_1c00e0d1_e97a_451e_aafd_822a0aea5c74"
      unitRef="pure">0.0742</oef:AvgAnnlRtrPct>
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      id="t_41_6bbc99a7_c1b9_015a_3814_1e4863c84edf">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
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      id="h_71_cdddb453_5bb2_4fdd_859f_0d893ef93d2e"
      unitRef="pure">0.1151</oef:AvgAnnlRtrPct>
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      id="h_72_f2764aac_f34f_4226_a7f0_da218749ba08"
      unitRef="pure">0.0522</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000088835Member"
      decimals="4"
      id="h_73_512678d0_5501_42e9_b845_7e02a7840698"
      unitRef="pure">0.0742</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_42_b038f7e0_4c7b_efbb_41e5_dc864355b04e">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_74_ed137ce0_7612_4fa1_a159_b0dc26c54409"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_75_83c81e19_b2d2_4149_8e90_3261e122588d"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_76_7b929f72_12ad_4ca0_aab3_9b707d4b15ac"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_77_119aca27_a403_453e_88af_933c7f9bfb37"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_78_77820436_e199_466a_8c07_ed80a8942cb3"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_79_e4b7f3ba_9a64_4499_95a5_2dcbd021ce0e"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      id="t_44_e4ef4f42_bc17_70a7_ff73_4e0db7f5c461">LifePath Dynamic 2030 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      decimals="4"
      id="h_80_a4c3cc59_2fb8_4fee_b98f_4ecab59ff818"
      unitRef="pure">0.1433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      decimals="4"
      id="h_81_7c259c15_791b_4e1f_b5f7_5212628a0326"
      unitRef="pure">0.0595</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      decimals="4"
      id="h_82_465ef00e_e36a_4d2c_bd58_5ff14edb2638"
      unitRef="pure">0.0794</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_35_61ce8310_0efa_163e_6357_64564e8552c3">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;539,904,136&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;39&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;525,171&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;19&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000088835Member"
      decimals="INF"
      id="h_83_751a439d_1470_4783_bf61_c4daa1c32262"
      unitRef="USD">539904136</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000088835Member"
      decimals="INF"
      id="h_84_715a9c13_80ea_450a_b8db_671756daa58c"
      unitRef="Holding">39</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000088835Member"
      decimals="INF"
      id="h_85_c7963a64_8a93_449b_a402_27c44a3df070"
      unitRef="USD">525171</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000088835Member"
      decimals="4"
      id="h_86_8bf0494c_458a_4424_8176_d9d04f01684b"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_45_6422a038_0afa_4535_67b2_cafdd006288f">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2030 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2030 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000088835Member"
      id="t_39_beaa0927_0509_2dee_7de7_b81ea4b52e7d">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_37_cfab738e_ab1e_501a_d12d_d55789fbb0cb">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_38_a60337b2_0431_cf0a_209f_1726adf99cd2">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_27_b989b1c2_089a_4728_8ea6_9d9c9745b983">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;55.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_87_56c019e6_59d7_4b8d_b303_3587f42c06e7"
      unitRef="pure">0.555</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_88_b41aca5e_e27a_421e_90ff_9b05183ef3d7"
      unitRef="pure">0.351</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_89_e028bbf5_72c3_45a8_b845_5a3b990d9044"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_90_e2ba40c6_6200_4640_bc4e_3942154feb9d"
      unitRef="pure">-0.007</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000088835Member"
      id="t_36_2510d1bc_cd7d_b10a_9d25_65b832b36b39">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_102_55c144f9_5e9a_0beb_16ed_baa9bdf4a5e2"
      unitRef="pure">0.304</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_101_a08a81d2_7b99_e108_24ac_89c8add7991e"
      unitRef="pure">0.232</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_92_bbbbf794_441c_432d_a824_ad77c8e2be3b"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_93_a25ffdbb_b07d_4cb7_aa0d_58fa7f413b6b"
      unitRef="pure">0.082</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_94_38c2f72e_c15c_4294_8913_4733cc8186b7"
      unitRef="pure">0.054</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_95_7b478d92_7c57_4ede_913f_94343c31c0dd"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_96_ffbd16e7_93a6_4354_a061_591f2c3af14d"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_97_cc466f97_3363_4fb4_b1a9_62e2e8519c1b"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_98_d96ee3f4_2dfd_4f64_8245_e3a4d845849b"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088835Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_99_62d0acc4_891c_4277_b3f9_877192d52125"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000051481Member"
      id="t_37_7011e8a6_75cd_961e_491e_4f9c9f3126ef">BlackRock LifePath&#xae; Dynamic 2030 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000051481Member"
      id="t_38_bee1d8e1_3e82_4353_83c0_5a41dd9d612e">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000051481Member"
      id="t_39_c223849a_d5c4_22b6_8f25_d64e5fef4b74">LPSDX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_28_f22227fa_0786_4adc_846e_e30b67e7363c">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2030 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000051481Member"
      id="t_29_c38d8777_5af5_4a65_a680_fb9d62d9829b">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_30_8dc44c86_b687_486d_93ae_cc94e3ffd075">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000051481Member"
      id="t_31_22a0f81e_ab49_44ed_9797_4d39e09b642a">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000051481Member"
      id="t_32_2260d68b_ad3a_44ad_9dd7_d056553664ba">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_40_45f38732_f56f_f4f5_26b4_972ef923fdb4">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;25&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.23&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000051481Member"
      decimals="INF"
      id="h_100_43ee03eb_185f_4a4b_9bad_c81bc955f340"
      unitRef="USD">25</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000051481Member"
      decimals="4"
      id="h_101_815874fe_ba1c_40fd_b893_647fd9933bbd"
      unitRef="pure">0.0023</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_41_f0dde6f4_e1f8_5532_875c_2814189263cf">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 13.92%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2030 Fund Custom Benchmark returned 14.33%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_42_2ba7061b_41ef_3504_06e2_ccd4de4b9c95">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6660017.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_43_7ec4319d_0cf4_2de3_44e3_36c556032aee">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.92&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.54&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.61&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2030 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.33&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.95&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.94&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_44_4b50b862_267d_c8d4_c850_8c3e800cfd4c">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;539,904,136&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;39&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;525,171&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;19&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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    <oef:HoldingsCount
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      id="h_115_413ccb40_f2d2_4c33_8fc7_41d6d11c86d9"
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      id="h_116_e89bdb01_a481_4ffc_9588_4e4cfa871b52"
      unitRef="USD">525171</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000051481Member"
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      id="h_117_9341b86a_1301_4066_bb04_5f3e7185c94c"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_45_5da64bd5_9383_288e_08f7_6ed2f537ef06">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2030 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2030 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      id="t_46_de4db254_cb22_c45a_b285_8d2a18f2f7c8">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000051481Member"
      id="t_47_3f00ea1f_3f7c_cb3c_af20_8b4ad9759789">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
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      contextRef="FY2025_C000051481Member"
      id="t_48_10f7aea7_0ceb_8f48_91a3_19848fec54c1">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
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      contextRef="FY2025_C000051481Member"
      id="t_36_25e3e27c_2f23_400b_bee9_525c335d8496">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;55.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_118_b88981e9_b5d6_449a_8d2b_fd936ca543e9"
      unitRef="pure">0.555</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_119_5be1b09e_d9dd_4333_b80e_22067cd2651f"
      unitRef="pure">0.351</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_120_e50f9a61_5e23_4972_b3f0_d7acf38b7a88"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_121_53749fc1_437d_4f2f_8e24_23b4f2c1fe5b"
      unitRef="pure">-0.007</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000051481Member"
      id="t_49_e1afd1ae_b6b6_e515_85ca_81db18647380">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_131_fdbda870_0c6a_2035_6c82_64aa5e866471"
      unitRef="pure">0.304</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_122_d6509397_056b_4086_bff0_5aa61044f966"
      unitRef="pure">0.232</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_123_53a66b8d_5a95_45a4_8b76_d06ecd7445f9"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_124_391f2248_20e3_4d97_b82f_e26089a0b557"
      unitRef="pure">0.082</oef:PctOfNav>
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      contextRef="TI20251231_C000051481Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_125_0a6223b4_7fe7_49a7_9afa_3235077800b2"
      unitRef="pure">0.054</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_126_40648cd1_1fd0_4526_852e_c9c4fc881230"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_127_e11bdb10_3dc8_4587_80e1_9fe03f95f3ac"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_128_faeef160_ced9_4822_9534_ff0e3d870b76"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_129_1fac9eb4_9da2_44a3_99c5_327ebe450c4b"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051481Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_130_3ad84c86_dbbc_46b2_a1f2_01a6aaa50b67"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000082487Member"
      id="t_46_db2e847a_ada2_21cf_20a7_78e5378f128d">BlackRock LifePath&#xae; Dynamic 2030 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000082487Member"
      id="t_47_0697fba2_3bd5_e7d7_9a45_cefbf0961b26">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000082487Member"
      id="t_48_a33583eb_fec4_8565_490a_1a793c5cfed6">LPRNX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_37_f75ffbc1_2cf7_47bd_8373_86b802837326">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2030 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000082487Member"
      id="t_38_77d2fa6c_033b_4ae5_8e25_92c2af8e67f7">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_39_c72b6336_0a9e_400b_bde9_59c54e78e8e2">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000082487Member"
      id="t_40_ec0700e2_c601_4222_afd2_b5102af74ffc">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000082487Member"
      id="t_41_7cb55165_f51a_4224_ba22_b229f504a3a1">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_49_23aa7768_aeae_272d_10e8_0f17cef330b6">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;99&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.93&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000082487Member"
      decimals="INF"
      id="h_131_52675402_edd8_4879_b10b_3f5fa18bbf85"
      unitRef="USD">99</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000082487Member"
      decimals="4"
      id="h_132_72ee16ef_187e_4c6a_9443_c64c80d693ec"
      unitRef="pure">0.0093</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_50_cee10c28_c379_ca17_d86b_c96f6b8a1f10">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 13.17%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2030 Fund Custom Benchmark returned 14.33%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_51_06033011_586a_5ee4_c910_93702e9b2d82">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6660016.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_52_84aa7f1b_3dd0_4549_3806_494b172b3be2">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.17&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.81&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.87&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2030 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.33&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.95&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.94&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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    <oef:AvgAnnlRtrPct
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    <oef:AvgAnnlRtrPct
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      id="h_140_03398e41_6615_4e51_95e2_0914f0c5ee16"
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    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
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      contextRef="FY2025_LifePathDynamic2030FundCustomBenchmarkMember"
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    <oef:AvgAnnlRtrPct
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      id="h_142_a88d621f_6039_4db4_8d7d_5271a33ba172"
      unitRef="pure">0.1433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2030FundCustomBenchmarkMember"
      decimals="4"
      id="h_143_cf2df9bb_0725_4648_8f9a_0f29a868fca8"
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    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2030FundCustomBenchmarkMember"
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      id="t_53_ee4687ab_61de_8bd3_1f4a_6b7d5efdebbf">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;539,904,136&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;39&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;525,171&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;19&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_62_614fa054_77da_f75c_323c_b272a85712c6">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2030 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2030 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000082487Member"
      id="t_54_7394e85a_aff6_5837_0794_41afc58d5c44">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_55_36ccd235_2060_0d6a_c9c3_bfb5a08c41c5">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_56_fdc28e14_50c6_c689_51dc_8222958e2d99">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_45_d5a7c709_26b5_42a0_a835_ea0cdebdd6ee">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;55.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_149_94a71cd5_94be_4f1e_8763_0c9b3bf18a1c"
      unitRef="pure">0.555</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_150_8fc18ef9_1121_454f_916a_0705e35d24de"
      unitRef="pure">0.351</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_151_d8760f4b_b457_4266_8279_1c394051c2bf"
      unitRef="pure">0.101</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_152_4d84a70f_c1b3_481c_85d4_cea67e6ccdbd"
      unitRef="pure">-0.007</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000082487Member"
      id="t_57_8f91588a_860b_8c78_3b13_4810d671480e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;30.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;23.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;5.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_162_14c61226_ac31_a0d2_c4ce_8f21bc369f30"
      unitRef="pure">0.304</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_153_1afe2909_8e43_4c0f_a1e8_9836e66a6404"
      unitRef="pure">0.232</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_154_e3d72deb_9900_4aa7_8898_1b0533e1049f"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_155_87a667c3_c967_493c_8f7f_78bff19a5f0c"
      unitRef="pure">0.082</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_156_ea04000e_9c91_4141_ab3d_caaa5afee793"
      unitRef="pure">0.054</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_157_74b2182d_18bb_4860_bc54_d448f7b27306"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_158_e241d8df_ce1b_4777_96da_0e933966f64f"
      unitRef="pure">0.037</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_159_853a7b9a_16c4_4646_9675_60d9b3614ab9"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_160_a6e20fb2_934a_4b17_b881_be2e52c95006"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082487Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_161_80fde3fc_78af_435c_addc_caf4efb25601"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089955Member"
      id="t_55_aecd1e71_2f4b_1bb6_81e3_6210f777582a">BlackRock LifePath&#xae; Dynamic 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089955Member"
      id="t_56_f20f6c12_9c86_a6b6_24dd_9cab97a920b6">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089955Member"
      id="t_57_e049f0e1_be47_84db_61c7_4f03c7d40523">LPJIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_46_1bc19b36_afdd_4f48_a1c7_decb3008dbe9">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2035 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089955Member"
      id="t_47_a22aea7f_0bc5_4408_9b2d_e0195e56c6ad">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_48_f79d9fb3_0f2d_4bf2_bc5f_0b2c2e783ad1">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089955Member"
      id="t_49_e606b924_7022_4d2f_bf84_5708d7384e97">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089955Member"
      id="t_50_d0daa934_77e3_497a_a4f5_e6bca9014747">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_58_0ed24a3f_7e04_0eca_5825_f6801962080f">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;52&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.48&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089955Member"
      decimals="INF"
      id="h_162_a9379f2f_016e_405f_aef1_3702c7dbd784"
      unitRef="USD">52</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089955Member"
      decimals="4"
      id="h_163_1c4722d4_da93_47d6_bd0d_809acf207530"
      unitRef="pure">0.0048</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_59_337dfb2b_9826_9ea4_6b96_11f69ef7240d">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 15.28%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2035 Fund Custom Benchmark returned 16.08%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_60_ff7d4e59_e757_c17f_90f4_b37cd80af502">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659953.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_61_201717aa_e58b_5039_5592_b41384957f0b">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.28&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.47&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.28&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2035 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.08&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.27&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.97&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000089955Member"
      id="t_67_099e2572_6cab_d7b5_28b3_9814cc037ea4">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000089955Member"
      decimals="4"
      id="h_164_917f12cd_e11d_45fd_8337_422292d3ab54"
      unitRef="pure">0.1528</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000089955Member"
      decimals="4"
      id="h_165_fae3cfa5_f290_4568_b603_b02e30ee2b2e"
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      id="t_68_284a671a_3aee_635d_39ba_54f0946243bc">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
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      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      decimals="4"
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      id="t_70_8cadf88d_b3ab_2ae1_8133_b3b71428e80e">LifePath Dynamic 2035 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
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      decimals="4"
      id="h_175_3a4f50ad_f9b4_4f20_86ba_590bd6d0df2e"
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      id="t_62_bbf127aa_33fc_4f8c_c7c0_baf14b9c382c">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;458,660,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;38&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;354,699&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;13&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000089955Member"
      decimals="INF"
      id="h_176_8b8ba954_d20f_4958_9e9e_add26c3a8f1e"
      unitRef="USD">458660348</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089955Member"
      decimals="INF"
      id="h_177_5bf2d87f_796e_4c98_ae19_dc3f2935e82a"
      unitRef="Holding">38</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000089955Member"
      decimals="INF"
      id="h_178_2f3b69fe_ff79_4a90_b39d_0f5f87608f2e"
      unitRef="USD">354699</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089955Member"
      decimals="4"
      id="h_179_b2845b52_f8b0_4b2f_a2a3_39b7e7bdab94"
      unitRef="pure">0.13</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_71_7d0ad3c8_3be1_bf18_8359_527b35333dd1">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2035 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2035 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089955Member"
      id="t_63_1d73d3f7_6b91_a54b_21e4_b26a94e6d39a">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_64_45d0471f_3f72_f987_9c70_85691071735d">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_65_48befc2c_051a_d359_c82c_53ec622ed94c">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_54_e39d9019_f649_4334_87c0_e9f78b775ade">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;65.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;25.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;13.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_180_eb62544e_5a7d_4799_b2a6_c56aaef92303"
      unitRef="pure">0.652</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_181_2c535b6d_dfa8_4649_a69d_6aa33f21751f"
      unitRef="pure">0.255</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_182_96120e3d_7282_4774_8be0_c072e7f7a6d4"
      unitRef="pure">0.138</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_183_a5284a47_59a1_438c_b4d0_a858de1be960"
      unitRef="pure">-0.045</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089955Member"
      id="t_66_1b6b4922_28ad_ec6a_fc6e_42ce4cbe2e36">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_184_16427eb4_5e4b_404e_924e_adb6821e9b94"
      unitRef="pure">0.353</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_185_452afe1e_226b_4cc7_8081_ca54a750cae3"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_186_4250772b_619e_48ec_8224_1964215d2a6d"
      unitRef="pure">0.123</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_187_0b44833f_2ee9_4c48_9b56_74c5f3f0c536"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_188_a2b2e59f_43d0_4a18_9ba5_2aa91c4578df"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_189_567c36b5_4b0c_4cec_a009_cb4c43e053e6"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_190_46759e4b_2c40_4f6d_b71e_11b4d2499fa8"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_191_25f8e055_2795_448e_8716_735488d6af63"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_192_2e9b53ac_cd15_48bd_8eab_725cf72a28a5"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089955Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_193_85bf0c73_3f15_4a90_bb98_2157f0ed80b9"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089953Member"
      id="t_64_444682a1_1a6f_58ed_215a_60fc4cb054d3">BlackRock LifePath&#xae; Dynamic 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089953Member"
      id="t_65_304fc9d6_66db_ccf8_55f5_fce6ece3b18b">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089953Member"
      id="t_66_5eb45e83_e4ff_972e_d612_40bb3f176b4b">LPJAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_55_8a51ff4a_5ce9_4235_82f5_22f915d847a4">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2035 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089953Member"
      id="t_56_7e325f66_b601_4471_bf1a_8e2ee8f5f227">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_57_08c12253_35b0_499c_9d37_864fc05e1857">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089953Member"
      id="t_58_01e074a1_a002_47f2_a6e1_2219d1f0e961">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089953Member"
      id="t_59_7604f413_6a82_4f6e_8d69_68dc1297f91f">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_67_67c12446_d53e_7960_927d_0fca7c78e14c">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;78&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.73&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089953Member"
      decimals="INF"
      id="h_194_20e30631_b633_458c_902e_6242b637f7cf"
      unitRef="USD">78</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089953Member"
      decimals="4"
      id="h_195_deb4de97_b74a_4ee4_a7de_2d60d1d2651f"
      unitRef="pure">0.0073</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_68_097c8393_0062_47e2_4175_e8d1d5d4bc2f">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 15.04%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2035 Fund Custom Benchmark returned 16.08%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_82_e429bb06_6357_97a3_3e3e_6bd87a844417">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659940.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_83_69142cfc_e041_7c17_1f9b_7d360397eacf">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.04&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.21&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.02&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.00&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.06&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.43&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2035 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.08&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.27&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.97&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;458,660,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;38&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;354,699&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;13&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      id="t_84_123fc4af_60fc_c18b_272c_0d7e4e9b44a1">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2035 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2035 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      id="t_75_9db180c3_afcb_938b_46dc_3316d43b13cf">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
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    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_77_c2d62043_1ecc_2548_6546_5238cc10aee7">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;65.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;25.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;13.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_215_52e77555_f0b1_4bc6_a6d8_6c142ba26caf"
      unitRef="pure">0.652</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_216_059f651f_315d_41ac_9bef_434fa008772f"
      unitRef="pure">0.255</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_217_37ebf839_b2c4_4a70_b762_28c2c0a72ecc"
      unitRef="pure">0.138</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_218_304ec9cb_068e_4414_9b0d_f6de09152933"
      unitRef="pure">-0.045</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089953Member"
      id="t_78_d6f3d8d6_f6b1_7b87_4382_38f1ea9673e9">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_219_1ce7845e_74c9_42f9_922b_7fb7dbb560a7"
      unitRef="pure">0.353</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_220_44d1c049_f17c_49e9_a5f2_eaaadb1239c7"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_221_4f81c6c0_e996_48c6_b7cb_f2d66b1a0496"
      unitRef="pure">0.123</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_222_87bc28ef_d9bc_44a6_a7db_b86b808ecd1f"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_223_bf3fe1ea_9c2f_4df0_8bda_11d77fbb8dd7"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_224_8f319b1c_0a17_44f1_826d_7aa6ff1d429a"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_225_89c9dde0_7b80_41b0_a895_de19fc647b0d"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_226_4ae0551e_c79c_4d07_993e_e675cc80ef1a"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_227_3166c731_a48f_41e9_9fa1_21a3c2e57277"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089953Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_228_855de240_6470_48ef_aacb_1a23d11f8ad5"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089954Member"
      id="t_73_88fb58ac_6452_395e_e87d_11a1299129bc">BlackRock LifePath&#xae; Dynamic 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089954Member"
      id="t_74_ea28f4ea_b876_8b49_0d86_12e02cff4833">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089954Member"
      id="t_75_e2c55e04_e52a_143d_61bc_65ad1195577f">LPJCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_64_6ba6cb17_9502_4b24_9e56_be3c93dcfc14">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2035 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089954Member"
      id="t_65_7afa6369_f3f9_4ac2_82a1_6074c24ce15c">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_66_2cc40cbb_611c_4422_8020_3b5673fa9127">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089954Member"
      id="t_67_ed08a9cb_ea24_4e93_a7cb_f27b874648ab">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089954Member"
      id="t_68_f7b7b659_ea19_47c6_bac9_8f291b3ed4da">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_76_ca5b73e0_1a39_7d8c_a036_d2d64d7a3942">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;158&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.48&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089954Member"
      decimals="INF"
      id="h_229_79070196_5adf_4698_86a4_1273ae7ec31b"
      unitRef="USD">158</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089954Member"
      decimals="4"
      id="h_230_16ba751f_2b89_4a85_8d54_b818419eaf34"
      unitRef="pure">0.0148</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_77_ecd610b4_09df_a63e_59dc_65cea7b79c0b">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 14.10%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2035 Fund Custom Benchmark returned 16.08%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_82_ffa5a243_6787_3e14_9006_c079a153dfca">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659889.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_83_ce3d645e_122c_782d_b83b_d1f49d55b741">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.10&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.40&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.34&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.10&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.40&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.34&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2035 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.08&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.27&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.97&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000089954Member_WithoutSalesLoadMember"
      id="t_86_83cadc77_2277_b4ac_26f8_7988891e63fa">Investor C Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_231_cb45f5cf_bfd0_4807_a740_5221c91344c9"
      unitRef="pure">0.1410</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000089954Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_232_04012af0_1d20_4e03_85c1_6b4001515fc8"
      unitRef="pure">0.0640</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000089954Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_233_1f470178_688e_40bf_97e7_e2e79e1c3923"
      unitRef="pure">0.0834</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_C000089954Member"
      id="t_87_0cccf8fc_9322_645b_8aca_679b4c16b691">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000089954Member"
      decimals="4"
      id="h_234_9c6499fd_4281_4f65_9f29_9514a448639f"
      unitRef="pure">0.1310</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000089954Member"
      decimals="4"
      id="h_235_79badaa2_f175_4b6b_b7f9_e1cc63b8e4ce"
      unitRef="pure">0.0640</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000089954Member"
      decimals="4"
      id="h_236_6f3324cf_aab5_414f_b3d8_c94507cf00d6"
      unitRef="pure">0.0834</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000IndexMember"
      id="t_88_057f6014_1cfd_65a3_5c3c_3aa3477cf180">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_237_515a2e66_733b_457d_8b85_09b9c12fd3bd"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_238_f81f5247_9728_4e5d_a3ac_972e35bcf764"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_239_5f9c7e77_45e3_46bd_89ab_8a91cbb209d3"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_89_3aa6339e_b7c4_9e50_32ec_ba5070f8f346">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_240_77119370_1098_4270_883a_489c52a31cf3"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_241_5de59188_c708_45ff_a089_cbf841158d6d"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_242_c9132f18_038f_438c_9ef2_5d3aeea834fd"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2035FundCustomBenchmarkMember"
      id="t_90_9328cf0d_95a6_f23e_c956_6d349b427205">LifePath Dynamic 2035 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2035FundCustomBenchmarkMember"
      decimals="4"
      id="h_243_77f9b95a_c784_4125_9c1f_3a91bc1ca3a8"
      unitRef="pure">0.1608</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2035FundCustomBenchmarkMember"
      decimals="4"
      id="h_244_e71c001d_6c93_42b9_ad95_4b76b2ebc68f"
      unitRef="pure">0.0727</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2035FundCustomBenchmarkMember"
      decimals="4"
      id="h_245_96033ab7_ca0d_41ea_8238_7f09f15033dd"
      unitRef="pure">0.0897</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_79_aa3ab61a_a45e_4972_ac68_a5e7131346f2">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;458,660,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;38&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;354,699&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;13&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000089954Member"
      decimals="INF"
      id="h_246_e0ded4e8_8047_462f_94ae_b8f800413edf"
      unitRef="USD">458660348</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089954Member"
      decimals="INF"
      id="h_247_24542ee6_af91_4149_ab13_e6163727958f"
      unitRef="Holding">38</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000089954Member"
      decimals="INF"
      id="h_248_26a99575_fb5e_46d9_b12a_0d9538c409b4"
      unitRef="USD">354699</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089954Member"
      decimals="4"
      id="h_249_78bb6742_aee9_4c27_b7b0_94107e6a47c1"
      unitRef="pure">0.13</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_84_7c4d70e1_0d63_a964_f552_74192e0471f6">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2035 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2035 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089954Member"
      id="t_91_dda148f5_778b_f241_176f_c14a6f72cb1c">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_92_3c560172_57ce_bfb5_32fb_44d0f8b75bcc">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_93_089d57fd_e1ac_0fef_e6fb_6bc89088c69d">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_80_dc765705_07aa_7708_2c46_ef135afaebea">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;65.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;25.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;13.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_250_f2047826_3bf3_42ac_bef7_fc0788b91425"
      unitRef="pure">0.652</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_251_c1fa74ee_e1ef_448e_93f8_e414b44aeb42"
      unitRef="pure">0.255</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_252_d2b1df08_f7f1_4a80_993d_354fcdbac12c"
      unitRef="pure">0.138</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_253_976bccac_253c_4b12_b3a7_28956abcf2e4"
      unitRef="pure">-0.045</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089954Member"
      id="t_81_990d62c5_ff19_2ebf_de23_5aa6d7745602">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_254_7495e651_7f03_4d47_8e28_4497e4aaf3fc"
      unitRef="pure">0.353</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_255_f9c83819_6703_40ef_9201_539810d61456"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_256_a109633d_b1aa_41be_86fb_d1d16d80722b"
      unitRef="pure">0.123</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_257_b5e5b1c0_a15c_48b3_a112_efc563330dba"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_258_65cce6bc_8888_4a80_bc57_1def6763c4a2"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_259_cbe03793_3e79_4873_b44a_fd7f0d241b72"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_260_ad21fb82_ac34_4f23_ac14_d68c2399f605"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_261_5e3f6286_b875_472a_b927_013cbe4ee8b6"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_262_23841867_facc_4890_a410_d68ec75a0b8a"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089954Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_263_a58f094e_298b_47f1_836a_cbe4f43ceeba"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089956Member"
      id="t_82_df1fe6e3_fe80_8dcf_cab7_b4ffd745be3d">BlackRock LifePath&#xae; Dynamic 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089956Member"
      id="t_83_f60c2db2_1686_e127_2f1a_c0b7906dbab9">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089956Member"
      id="t_84_3b39f473_64c3_cc72_972e_d87708ec9914">LPJKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_73_483a9c7a_e98c_448b_afb4_358dd6096617">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2035 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089956Member"
      id="t_74_977f68b3_0d77_4cc9_80aa_b4931dbbd0fd">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_75_5512b040_b9c5_47eb_b411_41cad46d8b6a">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089956Member"
      id="t_76_5468cd4d_7dda_4a25_a75f_873aaf62da8e">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089956Member"
      id="t_77_c459a784_3fc9_43c6_9a22_78a095eaac71">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_85_763f676a_9fbe_0e3e_4549_3e99eeb69739">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;25&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.23&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089956Member"
      decimals="INF"
      id="h_264_873c2073_53bf_4ee7_a00c_7b8bae366348"
      unitRef="USD">25</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089956Member"
      decimals="4"
      id="h_265_4b9740ad_ab1b_4bb8_a9a3_33153fe33474"
      unitRef="pure">0.0023</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_86_12991bf7_d5c3_3804_a4b2_08cb4baa21cd">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 15.57%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2035 Fund Custom Benchmark returned 16.08%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_87_2555e717_9470_f3c7_1b49_b062c980befb">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659876.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_88_8c03dc82_d6e4_ca7a_63d7_066fd4b9ccad">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.57&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.54&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2035 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.08&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.27&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.97&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_98_7f4f6ec1_465f_43e4_d433_b345175e45aa">LifePath Dynamic 2035 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_277_5df10799_d479_4cdb_af1d_babffba85205"
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      id="t_90_19a81519_4cd9_dc62_1321_4e81db4bd8ce">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;458,660,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;38&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;354,699&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;13&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      unitRef="USD">458660348</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="h_279_9e1b7551_e2bb_4dca_9bca_6861009b0bae"
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    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_280_d49126f7_05df_4bfe_89f2_12d43da8136c"
      unitRef="USD">354699</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089956Member"
      decimals="4"
      id="h_281_feefd1db_a457_430e_9dc4_cc44193ecb09"
      unitRef="pure">0.13</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_99_fde2005e_7f53_fd69_8c6b_2901de30425e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2035 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2035 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000089956Member"
      id="t_92_48cc2316_7c4f_96c8_5b2c_c3bbb984a1f5">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000089956Member"
      id="t_93_b6d061a8_27b1_b9c6_1eb2_528368578343">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_94_472f9f96_1b31_7dbd_4082_be5cc04898cb">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_81_f939f85a_4044_4456_b889_5a622b372a88">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;65.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;25.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;13.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_282_269dbd80_232a_49b4_acef_586115689066"
      unitRef="pure">0.652</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_283_5398091f_cc98_459e_85be_56582780f76a"
      unitRef="pure">0.255</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_284_7c1fe9a9_fecb_49c1_bac1_9e398e8aaa2d"
      unitRef="pure">0.138</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_285_45438178_42ff_4697_8889_38315403a5b9"
      unitRef="pure">-0.045</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089956Member"
      id="t_95_f872038b_de80_4986_8a2c_76100fa0b1fc">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_286_d6e033ee_4637_4a5d_86fc_94b287425398"
      unitRef="pure">0.353</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_287_c85487da_107e_47f7_9649_8cd75a41f600"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_288_d1fba927_1a5d_4258_a802_0f10062e1fe9"
      unitRef="pure">0.123</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_289_7e179592_2c7c_48cb_991d_84b4823ddd3a"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_290_43dced2e_7117_4839_b22b_5215e0a1d32d"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_291_47e9f94f_3eab_473d_b59d_da6bdd2579a2"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_292_7a0d2051_dd02_49e9_b9ae_6bb57b927f2d"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_293_d93e53f1_72ca_4033_9353_2d5b7b57edec"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_294_508e8030_3094_4f4c_ad5f_40744ce1e60e"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089956Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_295_e85fa50b_e27c_4532_b793_5a030cd54578"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089952Member"
      id="t_91_fc34b937_1f0a_9200_a300_cc7417c1bcf0">BlackRock LifePath&#xae; Dynamic 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089952Member"
      id="t_92_b3803581_1aba_2500_acf7_1649a7194a93">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089952Member"
      id="t_93_49f23fb3_4c95_f47b_3255_eacd3ab5f9c6">LPJRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_82_13c3004f_0fb1_4402_9b10_c29adc95d0a3">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2035 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089952Member"
      id="t_83_ca3712f6_7666_4881_8dfb_6dcf39a8d371">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_84_892e7fd1_adb7_4238_9799_ab2ed699464b">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089952Member"
      id="t_85_ef380929_a87d_43b2_8e11_120d914bc800">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089952Member"
      id="t_86_095ddefb_9504_4830_89ee_6a5852040b96">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_94_aa1e7fba_bc64_8820_9474_d9316a9f5b22">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;100&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.93&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089952Member"
      decimals="INF"
      id="h_296_82c1a4e3_bbd8_4620_82ae_04959c7e16ca"
      unitRef="USD">100</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089952Member"
      decimals="4"
      id="h_297_565bfc44_2955_42d7_9852_bae92938f75b"
      unitRef="pure">0.0093</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_95_b5a19223_bb87_b4f4_f1e6_70a7af6fbbe3">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 14.76%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2035 Fund Custom Benchmark returned 16.08%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_96_eedbbb44_58e7_a4bc_dcab_84d4eb9935c8">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659813.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_97_d23d4fd5_fdf0_6c56_4e1c_b58f9496861b">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.99&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.80&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2035 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.08&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.27&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.97&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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    <oef:AvgAnnlRtrPct
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      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_305_066d0003_8875_4902_9de1_fb766b450813"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
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      id="h_306_7ca7c447_5f6c_41ea_bfe0_05eaba2d6c17"
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      contextRef="FY2025_LifePathDynamic2035FundCustomBenchmarkMember"
      id="t_106_af18ab3e_8ea0_3459_7e82_2dba89ead3b2">LifePath Dynamic 2035 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      unitRef="pure">0.1608</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_308_51b7cc86_bc84_45ef_b526_5da5637caa14"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_309_ece59ae7_578d_4de8_8ce1_797d467cff70"
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    <oef:AddlFundStatisticsTextBlock
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      id="t_98_fe69f2e6_5c5d_519b_cf45_e824e3bc23d2">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;458,660,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;38&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;354,699&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;13&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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    <oef:HoldingsCount
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      id="h_312_8325e1ff_3dfb_46f1_b98b_690b962c7622"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="h_313_8ab2e919_81d6_4fa6_8fad_929cd4fbc9ad"
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    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_107_3d9ec4c6_1f05_3ce2_fd4f_89b69523e4da">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2035 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2035 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089952Member"
      id="t_100_ab6da3f3_c26c_b2e8_319d_b92be0b0fc9e">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_101_c17cba83_b328_42cd_fb92_d5e8967bb56b">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_102_70cba6d2_0954_3274_b4a0_e0c6fc528481">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_90_51e430f4_2070_48c8_911f_0ec81a875186">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;65.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;25.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;13.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_314_f295a029_fb8f_4df3_b2dc_c15ee791a59d"
      unitRef="pure">0.652</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_315_658294b5_1d18_429f_88ee_34a5baf5021e"
      unitRef="pure">0.255</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_316_7d06320e_d298_48f3_b96c_7bb9a245f0d6"
      unitRef="pure">0.138</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_317_bbf49714_3687_43bb_bb29_58d1009d3fa3"
      unitRef="pure">-0.045</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089952Member"
      id="t_103_d04ffe85_70b7_86ca_dc97_47122bc40dcc">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;35.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;20.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_318_fdc9a589_4b5b_4fc8_a10e_2960bc843583"
      unitRef="pure">0.353</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_319_c7396c34_a768_4593_b035_359aacc45bae"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_320_25089f44_eae6_4697_94c7_c23f6e2727d0"
      unitRef="pure">0.123</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_321_c3efc8f8_5ee7_4d05_b41b_ed07df309cf6"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_322_697f3743_47a9_4f38_ad85_4abe5a18eada"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_323_d48c52de_84b1_4fbb_997f_3cf9fb588f4a"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_324_6df92029_02b2_42ea_8e47_02affa87bb9c"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_325_658e776a_2f71_419d_bc9e_cc95bcfa6c90"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_326_7342e4ba_8d67_499e_9c49_1d0b7b1be78b"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089952Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_327_6eefae49_65df_4544_b240_26c529cba242"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000012000Member"
      id="t_100_5303d79b_a3b6_1c56_8cf0_157dcd8d103a">BlackRock LifePath&#xae; Dynamic 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000012000Member"
      id="t_101_ca192820_f517_24b5_29b5_b7e9e2442ba4">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000012000Member"
      id="t_102_852edfed_5367_80fa_1e34_32d09641e760">STLEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_91_0a447956_ea82_4b1c_9da9_4902c15e639e">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2040 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000012000Member"
      id="t_92_58b4a904_46ec_4e69_a5fc_1bf4fcac2975">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_93_f2316cd4_afaa_495b_9f75_6143f04be3ca">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000012000Member"
      id="t_94_c646fc7c_099c_448a_ace8_005746a15c74">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000012000Member"
      id="t_95_c171a60e_7b9e_449d_b890_aeefb9931bce">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_103_13f730c9_a2d5_8988_d977_a552543dfb7e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;51&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.47&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000012000Member"
      decimals="INF"
      id="h_328_8e2be8a7_bf8e_496b_8968_1d7dc46cb147"
      unitRef="USD">51</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000012000Member"
      decimals="4"
      id="h_329_d61df4ea_4b1b_4938_b3a1_77a37c8e044e"
      unitRef="pure">0.0047</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_104_0be3ee29_843d_6ea6_0b4a_d7ecb32e45ef">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 16.88%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2040 Fund Custom Benchmark returned 17.67%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_105_b442d807_fb30_96eb_ad7b_0238234bd719">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659812.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_106_8823d711_c5e3_25ac_26d2_0b423ecbc6f1">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.88&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.84&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.26&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2040 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.67&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.48&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.91&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000012000Member"
      id="t_107_d4cf20f9_28b9_d8fa_ab39_311b1d51ca12">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000012000Member"
      decimals="4"
      id="h_330_98b6a4b8_2e8d_43b8_8743_b1dfa77b5ff1"
      unitRef="pure">0.1688</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000012000Member"
      decimals="4"
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      contextRef="FY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      id="t_116_3d3c5d91_cc4c_dbdf_357c_836e5512251d">LifePath Dynamic 2040 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      unitRef="pure">0.1767</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_C000012000Member"
      id="t_108_65f241e2_9979_0083_8d5c_0c43e9295cd6">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;561,532,960&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;369,204&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;16&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000012000Member"
      decimals="INF"
      id="h_342_bed731a2_3fb7_4830_aa38_c2c16961f188"
      unitRef="USD">561532960</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000012000Member"
      decimals="INF"
      id="h_343_ae2312c9_c5fd_4ea7_9950_6fe7dc20eff7"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000012000Member"
      decimals="INF"
      id="h_344_126c0c78_c1e2_4b90_8d72_6385951c67be"
      unitRef="USD">369204</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000012000Member"
      decimals="4"
      id="h_345_dcc932d7_8a65_40a7_9bcf_0a4ffc71aa72"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_109_e533d665_1669_4fe1_4e27_c82c465d79b8">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2040 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2040 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000012000Member"
      id="t_110_ef9a0b7f_177d_6b9b_a397_cf74ae66edf6">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_111_5ebf97ec_2502_f4d9_fa6c_de604dd31ca8">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_112_6cc79543_fb4b_26a1_d083_6e2f3d0c4e11">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_99_5a0e2b2a_1d58_4b78_830c_5aba70ff6051">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;73.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;19.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_346_2d7ddc36_869d_4102_b60a_a39af2445822"
      unitRef="pure">0.730</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_347_e48c3bc5_87e2_4426_9eb7_53f1b9569b6c"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_348_d200765d_255e_49a1_b88e_004e1bf768f7"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_349_ecfb0d71_3fd6_46ca_9918_56b3aca8465d"
      unitRef="pure">-0.036</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000012000Member"
      id="t_113_9c622254_a658_7ac4_a418_03332f9ad13c">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_350_7da38204_47cf_43d2_83e4_a0162f2e4355"
      unitRef="pure">0.379</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_351_32b4d95b_7aae_4a5e_8e97_f73380f8737b"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_352_acd1fdf4_8076_4830_b0ff_ed94a1fbf318"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_353_22e0455a_9fc8_4653_95ca_45c166636a28"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_354_fd84aa05_68ca_4c98_89b3_f6a55e817965"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_355_86ff44e3_232c_40f6_99d4_ce2936939484"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_356_ea37836d_1a15_4dcf_a76a_2d501fd89276"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_357_a37cd45e_e3d3_4d61_9859_7102fc5a1e9a"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_358_4f04a41c_5d0b_421f_be65_6be6ed3ba872"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012000Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_359_5809830d_6c92_446e_9c7d_f7fd48e41741"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000011999Member"
      id="t_109_892cd8bc_8a90_ba9f_5577_d3502e6a4458">BlackRock LifePath&#xae; Dynamic 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000011999Member"
      id="t_110_622e1ca3_7e51_d24f_1d1a_865ddf00d506">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000011999Member"
      id="t_111_9b698673_4b36_5ecf_f8d3_67eb073d0792">LPREX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_100_53455db8_e222_4c5e_93d2_6002ed9ab692">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2040 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000011999Member"
      id="t_101_026c6cc5_dc5a_4242_adbe_7c9cc9ff8f6f">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_102_743c5bd7_9531_47a6_b6ad_5a6ba1bfa5ef">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000011999Member"
      id="t_103_c3c1f7fd_db7f_4a70_ad92_f747cb2bc982">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000011999Member"
      id="t_104_17a2df42_75fd_44c1_9055_336912034d0d">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_112_70b0e8fe_46aa_851e_e08b_02d28cfb6e78">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;78&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.72&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000011999Member"
      decimals="INF"
      id="h_360_1b86996b_e9bb_4ab5_8a17_7da51d713bfd"
      unitRef="USD">78</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000011999Member"
      decimals="4"
      id="h_361_dd2ab989_8da6_43d6_997d_e0b8b5672774"
      unitRef="pure">0.0072</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_113_2f81a00c_b496_4907_d131_d393a706bb7f">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 16.67%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2040 Fund Custom Benchmark returned 17.67%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_114_65d148e4_aea4_de99_5d12_831d9fa56023">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659749.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_115_6e8f0785_9ad6_968d_2dbd_cf831b00eb43">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.67&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.99&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.55&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.42&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.40&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2040 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.67&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.48&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.91&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_124_25fcf6b1_fd84_b097_2959_07a6ecf287f3">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      id="h_369_ab969226_44f4_4486_ae5f_f5c465f7c04f"
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      id="h_370_7df59ec0_1849_49b8_bd84_86b8846bd724"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_372_3bcf9fba_31ba_4174_8155_5f379a95fd88"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_373_5fcf8cfb_3ced_4892_a26c_003bf937dec7"
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      contextRef="FY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      id="t_126_e4b31149_1ef3_1d8c_7ae2_5277e7e8efac">LifePath Dynamic 2040 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_375_654002af_1ddd_4904_a945_c05db52d76dd"
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    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      decimals="4"
      id="h_376_b78bffb1_3890_408b_abd3_72daf8e840aa"
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      id="t_117_287a197a_35e4_f6f7_c71d_99570eeb1fd7">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;561,532,960&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;369,204&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;16&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="t_118_ec450495_5210_ec68_0418_2f694b793ca5">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2040 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2040 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      id="t_120_4067809f_ad59_9dd6_8aa7_4e01a45a4ab8">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
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    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_108_8731ffc7_19f6_49d9_b0a9_8d08f0afdbf0">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;73.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;19.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_381_b2ef9a76_d43d_4b4e_9235_b9647d94887c"
      unitRef="pure">0.730</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_382_2982a48d_486c_4999_93f7_f7d9cad80f45"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_383_2aa14257_5787_4b3e_a9a1_98eb8e87a7fe"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_384_6b0a6de7_6dc0_40c8_b0a5_41a3d4696d9c"
      unitRef="pure">-0.036</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000011999Member"
      id="t_122_80936432_830b_e4a3_1b0f_16f8ddb509fd">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_385_cefcafb2_5328_4092_a961_3b41770eb594"
      unitRef="pure">0.379</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_386_9c0c6205_b3b3_4155_84a1_626f5b486567"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_387_b3b5fb46_dd78_4b23_a052_2d63405adc5e"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_388_903efb74_dd59_41c3_a1f5_a0f04fb61187"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_389_e403091b_3fc8_4f38_b81d_5782b6e1c613"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_390_13506147_ce9a_4970_ae8c_cd3070fddc47"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_391_718c98f9_37f1_4936_bcf9_d378f09a494d"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_392_8d3ff834_8e43_49aa_904c_1f9721419a66"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_393_5fda0064_777e_4257_a17e_487698db3d4f"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000011999Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_394_14d9f329_a162_4e37_9a93_34e6bfe6b6ae"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000088838Member"
      id="t_118_828158f9_313c_1a36_b6a7_9cc653624f9a">BlackRock LifePath&#xae; Dynamic 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000088838Member"
      id="t_119_eede455c_c65c_cc57_d37f_3e3163ab1c32">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000088838Member"
      id="t_120_669fd356_4fc9_46dc_8a1d_a68f650022f2">LPCKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_109_6b6114e6_ff79_4e52_ac84_7e79f826c14e">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2040 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000088838Member"
      id="t_110_5e711dc8_e2f1_4bb8_8f3c_88cad738ec7e">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_111_fc36002f_a194_4dbc_a558_291a7dd19689">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000088838Member"
      id="t_112_b66cba8c_af5d_4b85_88bc_ca0caf25bbde">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000088838Member"
      id="t_113_cbf9fa18_5367_43bf_a761_2569608a8d0c">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_121_c857d33d_9bdc_2cd9_70dc_b9ffb7b34325">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;159&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.47&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000088838Member"
      decimals="INF"
      id="h_395_e2e0e585_9060_4821_8c86_31171afce96e"
      unitRef="USD">159</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000088838Member"
      decimals="4"
      id="h_396_6c8b66c1_cebf_486b_91a4_8c1b7506ad65"
      unitRef="pure">0.0147</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_122_3ae406a5_3551_a772_8bba_08f7be1b8c99">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 15.70%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2040 Fund Custom Benchmark returned 17.67%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_123_d0ef8381_5b63_57db_adb1_43d1cda7c450">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659736.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_124_27dab223_599d_aa3c_c895_10e718bea9b5">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.70&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.77&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.30&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.70&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.77&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.30&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2040 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.67&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.48&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.91&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="t_131_5261fc93_0655_3a4e_3e07_45b10a8d66ed">Investor C Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_397_81ec99ac_6633_4aea_9465_23425e7e3297"
      unitRef="pure">0.1570</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_398_fafc41cb_b4c4_49da_b8a1_d95dd993c77b"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_399_99ba4fd1_40b8_4763_9179_f1ebc493133b"
      unitRef="pure">0.0930</oef:AvgAnnlRtrPct>
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      id="t_133_d19fe2df_45df_1dbd_a4c1_24942046eda3">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_400_1b0c73ce_e70e_4d54_ad3a_87ba2d5a45e8"
      unitRef="pure">0.1470</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000088838Member"
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      id="h_401_056e46a2_5b9c_4319_9b98_26202309a065"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000088838Member"
      decimals="4"
      id="h_402_c86a1d95_60bf_47e2_88e5_5502d68b2eda"
      unitRef="pure">0.0930</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000IndexMember"
      id="t_134_e69d1e59_6de8_0d37_0318_5a285128da45">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_403_61f53c74_ac37_460a_98f3_c97ba3d06b25"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_404_c842af8b_d4f8_4536_9d8e_ad8e09f31ef8"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_405_2c289178_4684_4e08_a830_9ff70c45b924"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_135_131815c5_d13a_a18b_0994_e6a1c0ba0086">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_406_d0f851ed_8ac5_4489_b996_37e898ebde48"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_407_fbaaa718_bc7d_485f_a58f_0b22619e2c21"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_408_cb6e4f83_4c93_46db_a5e5_b4de4b394bea"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      id="t_136_edf4dc7a_f66c_1708_a0ad_8222992be864">LifePath Dynamic 2040 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      decimals="4"
      id="h_409_1b9e0a15_8ada_44c2_8312_cfa35c7d5c42"
      unitRef="pure">0.1767</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      decimals="4"
      id="h_410_b9c9b4d6_735e_4a5d_9dac_f00609ac1d2d"
      unitRef="pure">0.0848</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      decimals="4"
      id="h_411_735d061a_3f7a_4949_a483_915495e0f809"
      unitRef="pure">0.0991</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_125_d31171ef_1dda_6239_e23a_062beab0ccef">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;561,532,960&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;369,204&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;16&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000088838Member"
      decimals="INF"
      id="h_412_8aec3561_9c56_4b92_84b2_ff6e34fb4eb3"
      unitRef="USD">561532960</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000088838Member"
      decimals="INF"
      id="h_413_b384d91f_bcfc_4f42_ba03_174b55968801"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000088838Member"
      decimals="INF"
      id="h_414_f166b40c_af09_47e9_a937_2b476152b5c9"
      unitRef="USD">369204</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000088838Member"
      decimals="4"
      id="h_415_8972f5ba_e003_4416_90d1_4e17378cbd4b"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_126_e0432ec1_d82f_5147_2847_4d009e79f130">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2040 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2040 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000088838Member"
      id="t_127_5802509d_e29a_21ba_7270_dcfbe6fd3937">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_128_57dc2a9b_1529_8afa_7867_2773610cb3fa">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_129_d3850bcd_3fde_3595_daf0_3ed4d4dc3a23">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_117_bee45c3d_cbeb_4297_aff6_449f6139d74a">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;73.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;19.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_416_0a62defc_8a5b_4a39_a7c8_ea895d3aa548"
      unitRef="pure">0.730</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_417_e8791306_a2ce_41ec_8c50_cb55f20ea4bb"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_418_e5b05800_9d8c_4410_bc93_5faae52b30b8"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_419_f1091709_4a13_4ea9_8d6f_702e1befbe29"
      unitRef="pure">-0.036</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000088838Member"
      id="t_137_55d54d54_8fb8_7c30_4279_6b064a689453">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_420_1c52f013_cf60_4c6e_b494_77e44763d791"
      unitRef="pure">0.379</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_421_695e332c_cc74_4cdc_b209_194226049438"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_422_8da410f4_41b9_4a12_8d2a_62047f0ddd3a"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_423_40c4f000_5be9_4994_87d6_04b1425a87b8"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_424_69a0bd88_94c8_42f2_b685_c283579d09fc"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_425_0b10bd36_d312_41df_a585_83830622a071"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_426_b2eaca41_e9bb_44f3_9019_c1965ae36624"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_427_ff77ec20_236c_4469_9178_d25a87139acc"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_428_969aa909_9540_41f0_80b0_30c2fab1be9e"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088838Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_429_05169027_5b5f_4e1d_9629_122e6be98fd4"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000051482Member"
      id="t_127_06ccd8cc_52b5_8018_0e0c_c6cdbecb3896">BlackRock LifePath&#xae; Dynamic 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000051482Member"
      id="t_128_89ee90e4_c9ef_2a53_62c0_e9cdddeabcf8">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000051482Member"
      id="t_129_81931f56_8564_931a_8eef_74cab63f9d76">LPSFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_118_2e836c8e_8116_4c27_8096_53b54bfd9b9f">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2040 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000051482Member"
      id="t_119_2732c286_b768_48eb_a0fb_be034d88be89">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_120_6762b19b_3ae1_4903_9fa5_1509b79a5bb2">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000051482Member"
      id="t_121_2c940ff9_74f4_4d72_a13e_65f9d633dd25">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000051482Member"
      id="t_122_103c1822_a353_477f_a174_e4cd6f844003">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_130_c03b9cbb_471f_4aba_e5f3_e35fbca82021">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;24&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.22&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000051482Member"
      decimals="INF"
      id="h_430_5c7cc51d_8363_42c3_9673_386300f961a4"
      unitRef="USD">24</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000051482Member"
      decimals="4"
      id="h_431_b51cdeeb_0a35_4c4b_81f3_b4d774bb8594"
      unitRef="pure">0.0022</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_131_188ada82_eb65_7352_317b_29e0effcf2a9">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 17.23%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2040 Fund Custom Benchmark returned 17.67%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_132_176e20ff_dc6b_8a29_1852_04c2fd856afd">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659685.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_137_f3daf409_6a9f_dfc0_c763_19f85e170e5e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.23&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.13&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.51&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2040 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.67&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.48&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.91&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      unitRef="pure">0.1051</oef:AvgAnnlRtrPct>
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      id="h_435_31c5a102_eb80_4606_b16e_ef0603085387"
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      decimals="4"
      id="h_437_c148f1de_5e72_4350_9797_229756b22dbc"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_438_b664e676_4344_4ce8_a300_fd327c8ea332"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_439_d41dd2d2_400a_477f_9503_a08c94aaad41"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_440_d23ed98e_14bd_4141_8be8_3502fa6d5403"
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      contextRef="FY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      id="t_143_a38ac7ca_f745_c24a_b9a3_43d604a1f344">LifePath Dynamic 2040 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_441_70b86eb5_248e_4ea1_9302_4457e5f55d6e"
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    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      decimals="4"
      id="h_442_26ae8c75_08fa_4ff2_a63b_4fe3fb5a1d76"
      unitRef="pure">0.0848</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_443_4eccde9b_71e0_407c_a753_368d2a2d235b"
      unitRef="pure">0.0991</oef:AvgAnnlRtrPct>
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      id="t_138_65115057_8324_2b30_5966_cfcb62496619">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;561,532,960&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;369,204&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;16&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      id="h_444_830e0a5d_c731_421b_bfaf_d6758253007d"
      unitRef="USD">561532960</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="h_445_e97f2ada_cf83_4bc4_a74b_9fb222a3644d"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000051482Member"
      decimals="INF"
      id="h_446_206fa267_fac2_4aee_a12c_427767e54b21"
      unitRef="USD">369204</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000051482Member"
      decimals="4"
      id="h_447_7863f40a_9771_4d4e_b36e_ebbc03deb0fb"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_133_1462b241_5fd2_958b_2c30_ac437ad53ce8">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2040 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2040 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000051482Member"
      id="t_134_159c0dd9_e1f1_3a2c_3ac8_b19383c829cf">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000051482Member"
      id="t_135_5b19cbac_b18e_3a73_6917_f66a56dd107c">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_136_759504cc_985b_20bf_27d0_c1921e1bb0c3">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_126_c28988b7_f494_47b8_8dbc_a42362ded34e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;73.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;19.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_448_14a6a916_d478_4362_b8fa_f3eb2fb69bc5"
      unitRef="pure">0.730</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_449_06f05fd3_0bc7_47ba_9ce2_fe81a40f157d"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_450_35a81765_a4df_4923_a34d_4a87dab69409"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_451_a96b0531_d5df_4f71_9826_6a226d4bcea4"
      unitRef="pure">-0.036</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000051482Member"
      id="t_139_9174a578_d77d_1c65_e724_a0c57129be8e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_452_2fc08a6e_c3f5_4f54_a310_7429b57e6138"
      unitRef="pure">0.379</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_453_7db24bac_a518_4dd0_9f7d_0f8e90299167"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_454_8d8a092a_76a4_4fbc_805e_cbc7a6110395"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_455_7c8d867a_50a6_4c70_9d1d_f745d9499b6e"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_456_8731f641_3159_46cc_b560_0317dd21cf58"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_457_391dc50f_5f49_42b5_a0ff_d6a469338953"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_458_8b5fc6fd_fcab_4462_81fa_83f9a509cfd3"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_459_893cf775_43f5_4c1a_b385_859abf9ee2c6"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_460_a3fe6c92_bb28_4442_9809_250731a842bc"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051482Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_461_d938f4ed_ae89_4630_92c1_0b071701ba36"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000082488Member"
      id="t_136_73fc6a17_75b1_d687_5fd6_86dad063434d">BlackRock LifePath&#xae; Dynamic 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000082488Member"
      id="t_137_6dcbb80e_a825_4bb4_fc13_9207cd3bbcd0">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000082488Member"
      id="t_138_b7c455f8_63d2_8c84_be33_27c9d1a5dbe5">LPRKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_127_e5803e12_efec_4cef_a274_e852ee49420c">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2040 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000082488Member"
      id="t_128_30f683c4_798d_458a_bf22_647779134d76">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_129_0927a682_36cf_4ac9_a70c_4d6c3f27b457">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000082488Member"
      id="t_130_59f52bf7_4f19_4622_846e_890b23caf8e2">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000082488Member"
      id="t_131_cf1b18b5_42e4_4174_99d0_4cd849a4db5d">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_139_cf72e787_c56e_d1d9_7ec4_00851382f0b0">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;100&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.92&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000082488Member"
      decimals="INF"
      id="h_462_b0719253_4295_467d_b840_5b3cc7eae863"
      unitRef="USD">100</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000082488Member"
      decimals="4"
      id="h_463_5375e50a_83ff_4698_a664_c1a663774d3b"
      unitRef="pure">0.0092</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_140_7dc0f361_8b0b_13f0_724f_f7344d3c217d">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 16.41%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2040 Fund Custom Benchmark returned 17.67%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_141_9c5c3c92_bf86_86d3_e101_145d5d675f03">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659672.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_142_5b80eae5_e94e_9c17_e89a_1fdacbe65c72">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.41&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.76&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2040 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.67&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.48&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.91&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="h_465_a660eb27_4726_4b91_b563_b3526217717d"
      unitRef="pure">0.0836</oef:AvgAnnlRtrPct>
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      id="h_466_65762fc2_e8cf_451f_8d90_838a951ae05c"
      unitRef="pure">0.0976</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_150_d855dd41_8bb3_89e9_840c_2d5d2cf63efc">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      id="h_468_8d0f65b0_0582_4ac8_9fbb_1133161e5482"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      id="h_469_d46a7ec3_e95c_45b1_8ba6_7566008b2b89"
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      id="t_151_04296137_f378_428c_07bb_1071111642cb">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_470_e7bc6db0_f378_45f3_8518_12fa7e239672"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_471_e524a6d0_83f2_449f_8c1b_997b581cce7f"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_472_a7b2291a_bef3_4d9c_9e1e_8d750d3240b4"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      id="t_152_2d2319a9_6e73_5626_fab9_60fed132f385">LifePath Dynamic 2040 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2040FundCustomBenchmarkMember"
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      id="h_473_475b39d3_bc6c_4b04_b31a_a832f716ade7"
      unitRef="pure">0.1767</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2040FundCustomBenchmarkMember"
      decimals="4"
      id="h_474_d55d2b10_369d_4138_b615_40e56ec626ba"
      unitRef="pure">0.0848</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_475_5fb55fc5_e690_4430_98c6_ed18be549572"
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      id="t_143_6c5445f6_ade8_b2a0_d0af_d69ae8f60d0d">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;561,532,960&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;369,204&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;16&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      unitRef="USD">369204</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="h_479_28494cc9_f2fe_4b23_be03_f15ca594b4cb"
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      contextRef="FY2025_C000082488Member"
      id="t_153_e23f013d_a85f_58fe_26b5_373c6607b4d3">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2040 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2040 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      id="t_145_ae46059c_124e_20e2_c3d2_a80518ad17b1">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
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    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_147_430c4f73_f9ac_b005_535b_16b295bfff54">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;73.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;19.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_480_a6ac7b7c_3b57_49d5_a11f_8d8ffb5cb4e3"
      unitRef="pure">0.730</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_481_5b1b1b69_5c67_4a3b_8ca4_8f5fc16b06b6"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_482_b7cc5b73_158e_4e98_8054_136a7e72db33"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_483_f2dbd21c_e559_4ab4_8496_6071605f6b13"
      unitRef="pure">-0.036</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000082488Member"
      id="t_148_580f5b13_d62e_084f_1a96_c3529ec64042">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;37.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_484_ea8adeb2_3d18_4a89_980e_3db4a2143089"
      unitRef="pure">0.379</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_485_18653818_b9c0_40e6_a32c_aa477f886d20"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_486_d3badac4_d371_42cd_8583_4f55467ab1d6"
      unitRef="pure">0.152</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_487_f8cafdfd_f4a9_4020_8504_cbf8ff930a2f"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_488_486c7d4c_d03e_4e17_8288_0431a789f72f"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_489_cd1dce46_a1cf_4f4c_86b8_03fd6ca7164e"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_490_caa18cf3_dbfe_4e32_bb57_fbb79227e12f"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_491_cf0feb62_aaeb_4988_b22c_560678d8b6c6"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_492_f397fbae_b4e0_4f06_a296_7b734480df72"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082488Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_493_8ff2a28f_4abd_44ce_ab1b_2b53571a6b4b"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089959Member"
      id="t_145_8762fd0a_69c3_6574_69a9_6054ed643a64">BlackRock LifePath&#xae; Dynamic 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089959Member"
      id="t_146_0c91f03f_d9c9_a641_d4ca_45c450226a51">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089959Member"
      id="t_147_97d09714_ad11_b423_ea89_67102095a44e">LPHIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_136_1222f0fe_f8f3_496b_8d50_c26d747cd7c8">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2045 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089959Member"
      id="t_137_cd2c66ef_25df_49d7_a7d3_ef9e08b0f322">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_138_50b1b2c7_9cf3_432f_ac56_aefe6b295a22">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089959Member"
      id="t_139_4d37a022_dbd9_4ff3_8a62_ed10b7aa6b86">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089959Member"
      id="t_140_fafb7adb_9edb_4f36_ac05_f9452c89870d">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_148_1ed98127_b5c7_1a93_a3ba_317198016da7">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;52&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.48&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089959Member"
      decimals="INF"
      id="h_494_9a517585_54a7_48a5_a64f_7df65a070028"
      unitRef="USD">52</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089959Member"
      decimals="4"
      id="h_495_ecc9a3f0_bf33_4b46_bc53_c634e1f09481"
      unitRef="pure">0.0048</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_149_e25cdfc6_5458_7724_0fb3_0e7654bef6cb">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 18.47%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2045 Fund Custom Benchmark returned 19.15%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_150_7ee0cb8c_a4b0_4ad0_8280_3daa99b27699">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659609.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_151_8e088696_8e1f_394e_29d7_fd05e00eace7">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.47&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.90&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.89&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2045 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.15&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.58&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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    <oef:AvgAnnlRtrPct
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      id="h_497_a8b36216_091b_42f3_b7a6_67eaf23bfbe7"
      unitRef="pure">0.0990</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_498_c5339279_7525_425e_8c27_5540e2b48498"
      unitRef="pure">0.1089</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_159_c4b7e6d1_ad83_c290_42a7_51c41db768a9">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_499_9f4fd776_17ea_4725_8032_3583726380a2"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
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      id="h_500_74d5d278_3c2a_40b9_bccd_99bd83c51e2f"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_501_196a6439_e103_415c_9414_9c52260968e8"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_160_9627bb9e_a215_ac1a_fc74_f43d74d2c67f">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_502_0a12923d_912f_4858_bcdb_d7cdc9a1f5d7"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_503_cc72d693_0d68_46d9_916f_32187d916ce2"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_504_91ec6b47_401e_4cde_b0b4_c87ff2c3cc78"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      id="t_161_320c028b_c7db_7beb_f3ab_9a0e1300eeb1">LifePath Dynamic 2045 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      decimals="4"
      id="h_505_de008b4a_268e_464a_81a8_b03fb0dcbd61"
      unitRef="pure">0.1915</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      decimals="4"
      id="h_506_d16e38b0_6733_4c81_b026_e8f684ff7a2e"
      unitRef="pure">0.0958</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      decimals="4"
      id="h_507_5a208ed3_b414_4f01_8872_cf165c39dca2"
      unitRef="pure">0.1068</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_152_1e14d600_6db5_6348_0734_48e338251258">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;390,804,021&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;250,292&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000089959Member"
      decimals="INF"
      id="h_508_8505435e_0e2e_4dbd_b9d6_f7dcedc2cef4"
      unitRef="USD">390804021</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089959Member"
      decimals="INF"
      id="h_509_8a3dc1cf_a683_4c82_9f96_e50ee8d22fa7"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000089959Member"
      decimals="INF"
      id="h_510_9d439cd6_868b_4563_9cb9_6d7573ad87be"
      unitRef="USD">250292</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089959Member"
      decimals="4"
      id="h_511_9aaf45b9_9647_43e3_a612_fc6f3216d848"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_153_8badc060_5709_b73d_fdd3_850bf8f65edd">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2045 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2045 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089959Member"
      id="t_154_c37dd26e_d54f_5813_25e8_f81b498ca2d6">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_155_872ad3d8_57ce_5148_1b4f_53c07d211659">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_156_0e826395_317e_fcc4_5378_622297526cd4">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_144_e4e391d6_afc9_4d5e_a67f_ace9e4909dfd">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;78.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;16.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_512_fb946eb8_369d_4b10_a2cb_1343737cb89e"
      unitRef="pure">0.784</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_513_342324ac_b2a1_427d_9f9b_51c962e2c5e5"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_514_9cefd0a0_2736_43f4_8414_45efdd0f228b"
      unitRef="pure">0.126</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_515_c37bd8e2_04c5_4323_bdfd_70ba2bf477c6"
      unitRef="pure">-0.073</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089959Member"
      id="t_162_e6335da7_a308_a6d0_501a_b2552bdbb89f">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_516_8d922e94_b99f_490b_9f5b_13bdb29cf955"
      unitRef="pure">0.403</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_517_16c4f8c9_8a24_4234_9dd4_a8c7c84e0c99"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_518_0766a842_6eef_44b0_a666_8bcd8dc965bb"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_519_f44ba8b4_6826_4763_be53_9663348462f9"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_520_707582b3_0931_49b8_b2f3_d9e82e3679a9"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_521_d1691828_897f_490a_b651_421ea5789984"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_522_db00acdb_b394_4e3d_9056_46dd1d3042b9"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_523_7842a65a_de3e_4a3a_adb7_ddeffa8fb7cb"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_524_302688b0_de9a_4c59_adf5_7802578a31d0"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089959Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_525_b66cd9e0_8117_4b68_93a7_83b20c8b6a5d"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089957Member"
      id="t_154_162eed44_3d3e_4400_11c0_faa26e82454c">BlackRock LifePath&#xae; Dynamic 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089957Member"
      id="t_155_ac0af3b1_f685_b86d_59a4_203f6d53e149">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089957Member"
      id="t_156_47e75be0_e31f_5b45_9e8e_7df6f3f898bc">LPHAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_145_8173e417_9066_46e8_89e3_9e9be2730543">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2045 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089957Member"
      id="t_146_df5970da_541b_4b6f_a4dc_0131e4039ccd">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_147_7a59aa0c_2448_4f32_9026_367c88e60352">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089957Member"
      id="t_148_2aafb6b1_60cc_4cff_be31_691d7d073652">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089957Member"
      id="t_149_4f454827_f423_45b1_9379_1d5011a86b9f">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_157_84e3e47f_9187_9bde_5cdf_90d93a0cfa5b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;80&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.73&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089957Member"
      decimals="INF"
      id="h_526_bc4ff985_16d8_4bb0_a0c9_dcfdc721e03e"
      unitRef="USD">80</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089957Member"
      decimals="4"
      id="h_527_4f9202b3_d967_4c2f_85b4_58e3e1647896"
      unitRef="pure">0.0073</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_158_f6ac4ca0_2fea_f0f9_8f4d_cc0acf7a8056">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 18.13%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2045 Fund Custom Benchmark returned 19.15%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_159_e3b390ad_caa4_c7f8_ec4f_f70dc5f7b404">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659608.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_171_e0e07bcf_a624_28a1_0ff2_5554d0d6d8de">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.13&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.63&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.62&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.93&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.45&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.03&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2045 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.15&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.58&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      decimals="4"
      id="h_542_fa9bb90e_f16e_466e_8505_8363ce2dc762"
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&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;390,804,021&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;250,292&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      unitRef="USD">390804021</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="h_544_9c6291cc_1c65_4f99_b113_695770e43c0a"
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      id="h_545_1fd9baaf_aca4_4439_ae3e_f15ac60eae33"
      unitRef="USD">250292</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="h_546_c572f010_2d0d_4275_b971_66ee6618a201"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_164_78f8e1d4_a810_3939_e5f3_38db0072ae84">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2045 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2045 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000089957Member"
      id="t_160_23eb1619_6e2d_fb62_74d6_b29dbbc87637">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000089957Member"
      id="t_161_bbfd6e6c_fc10_75b7_b082_51fc53ab350b">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_162_7d148a3e_ced0_aa75_0bf5_32a0fd9609ee">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_153_f5a60e77_fa42_4202_9921_fcf0747c8013">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;78.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;16.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_547_17687d6f_d050_4977_8582_b09c51b884d9"
      unitRef="pure">0.784</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_548_db431dd0_b7f1_4ace_9c04_29a2cd8c6b99"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_549_61daf2a0_eaf2_46ba_9daf_638fcb87f89e"
      unitRef="pure">0.126</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_550_e8400529_2ccb_43e8_aede_333d1a2f3805"
      unitRef="pure">-0.073</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089957Member"
      id="t_172_7b5cd8ad_cb74_8a70_2330_ad084d640b89">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_551_91a226ad_96c4_4403_81ec_74b5ed535b1c"
      unitRef="pure">0.403</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_552_aed2b281_7886_45f2_9942_c75d886130e8"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_553_a8b407fc_be12_4b54_a283_376ca2de427f"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_554_a4c2962f_89d8_4c07_9de1_805dc98a9bf0"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_555_f79231ce_8acf_4497_825e_98ae64e2724a"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_556_2af246ba_afe0_43f1_929d_ed6266009c75"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_557_38bbb0e0_dc1d_4f4f_b94e_314ed37b84e6"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_558_192dc495_34ff_43e8_aa83_07f5c505a4cb"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_559_666c9d19_edf1_426e_81d9_9c7c3333dd6c"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089957Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_560_a29337c0_773f_42a0_9bc2_73cf42d90342"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089958Member"
      id="t_163_f71394e3_41e5_6ba5_0012_11b6e08d8947">BlackRock LifePath&#xae; Dynamic 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089958Member"
      id="t_164_53e7b4dd_6647_3e9d_56a5_f281c70aa66c">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089958Member"
      id="t_165_43e1da6c_c4b8_7033_bb54_37fd55c7da82">LPHCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_154_5141270d_c424_422e_94bf_3d5af6a2edc4">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2045 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089958Member"
      id="t_155_ed09a807_8d4f_4882_a776_ca286b430175">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_156_44c0a3b6_ee1d_4526_a666_e25548e0d44d">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089958Member"
      id="t_157_6a83faca_b984_4a9d_b221_3b522db8c68a">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089958Member"
      id="t_158_997a45c7_13ca_4522_861b_407bff2a53f0">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_166_596ad540_c173_2d47_f070_18ac0c385f02">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;161&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.48&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089958Member"
      decimals="INF"
      id="h_561_cd9ff679_c147_40f0_b091_7ef9f15adab5"
      unitRef="USD">161</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089958Member"
      decimals="4"
      id="h_562_cb6a86a8_d656_4f4e_9079_e56018eda7b3"
      unitRef="pure">0.0148</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_167_f35038bf_c65d_34ba_9434_bfd1577fa7d1">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 17.26%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2045 Fund Custom Benchmark returned 19.15%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_168_f76c84f4_738a_0c8a_54c9_1e39ac944cb2">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659545.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_180_9c78a767_58eb_2f8c_7a63_a976a5fb4672">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.26&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.80&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.94&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.26&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.80&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.94&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2045 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.15&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.58&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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    <oef:AvgAnnlRtrPct
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      unitRef="pure">0.1726</oef:AvgAnnlRtrPct>
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      id="h_564_022761f4_77a0_47b9_9f99_2f23a63b3aa6"
      unitRef="pure">0.0880</oef:AvgAnnlRtrPct>
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      id="h_565_1d4e7cb0_1d05_477b_924d_c2bce4923820"
      unitRef="pure">0.0994</oef:AvgAnnlRtrPct>
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      id="t_176_ebe90d38_aa7c_de4c_3216_2009ffc5c458">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_566_14e8e1c6_3167_4564_acb1_f348e725d528"
      unitRef="pure">0.1626</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="h_567_ceb072ea_58b2_4178_bbf9_a5e224c61545"
      unitRef="pure">0.0880</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_568_b52e7454_64a7_4996_aa1d_1bdc62ad9ae4"
      unitRef="pure">0.0994</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000IndexMember"
      id="t_177_0f9347c2_a83c_17b8_ecf5_37a2a4f068c9">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_569_bbacd805_47ea_45a4_8482_16b8d792ec75"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_570_427479d6_8d7a_4ce4_8e39_8d28e3d3f036"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_571_0df6e23a_a31e_49b0_a657_72690e2f61d5"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_178_6b30b2ed_36db_0095_1a65_a14dc6f35ade">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_572_7bcc8833_b3cb_4a68_a0e8_04cfc693ea7c"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_573_6c12b7e4_c9f2_4298_9d49_e333b1e35c01"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_574_94af8af4_c38a_401c_9f5e_2cdda5540bda"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      id="t_179_7118d82c_91bf_7270_df05_2686d26c9ba2">LifePath Dynamic 2045 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_575_8827b3da_1160_475f_b466_8a5045a03ed5"
      unitRef="pure">0.1915</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      decimals="4"
      id="h_576_3c9bbd49_42f8_4967_bfcd_0d0364cf8273"
      unitRef="pure">0.0958</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      decimals="4"
      id="h_577_d6473ac2_429c_410b_92a2_47b4e0b0ccd1"
      unitRef="pure">0.1068</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_169_1d717170_4107_b4e0_06ef_09b8c4c515ad">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;390,804,021&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;250,292&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      contextRef="TI20251231_C000089958Member"
      decimals="INF"
      id="h_578_04895075_4396_472d_b9cf_8d6253b6219e"
      unitRef="USD">390804021</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089958Member"
      decimals="INF"
      id="h_579_5bfcf83f_9786_4200_95f3_bc60125ee178"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000089958Member"
      decimals="INF"
      id="h_580_de8f9f92_127b_4b76_8a41_9d8bfa2da8f3"
      unitRef="USD">250292</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089958Member"
      decimals="4"
      id="h_581_ce5e5109_bc41_494d_87e2_ab6d4cc4da1f"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_170_aa35962d_69e2_82ba_e73e_ff2a750f175f">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2045 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2045 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089958Member"
      id="t_171_1815c48a_b488_037c_3e55_392e9b19863f">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_172_41d1a7f4_d334_9b7e_7125_05022e2da2a0">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_173_30f419b3_237c_d9b5_4f51_e01792c2d25d">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_162_52065231_c247_4a70_8071_667be8998907">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;78.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;16.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_582_ed9285d9_dd42_4f20_8199_fd81f83e008e"
      unitRef="pure">0.784</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_583_cb1facf4_ecc1_43f9_b791_6bc8d093a4c1"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_584_e85d747b_b26a_4c20_a3af_e7c108d8f150"
      unitRef="pure">0.126</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_585_cad4a34a_3a70_4436_9581_36dcd02370c7"
      unitRef="pure">-0.073</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089958Member"
      id="t_174_e7d308cc_d2b4_b223_426b_d113cbe39657">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_586_c77b6bbb_2477_41fe_a315_5f74684027a6"
      unitRef="pure">0.403</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_587_d0f6f910_c019_4792_b9ad_7bcbeec2b6cb"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_588_92f373ad_3701_4765_b225_e6559ad15100"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_589_5865d7a8_b7b7_4c71_b50b_a6f88a44e1c9"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_590_82f5c7a5_4d05_429d_b874_826e83a9516c"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_591_2427767f_dc99_4c10_860d_b4bedaad2abe"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_592_34a0b8ba_5a41_499b_9c2f_8980eb700e57"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_593_4542d7e1_906d_4aa6_807d_00411273106f"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_594_573f967a_5d30_43b8_9e79_1028b91af360"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089958Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_595_fae07d62_37c4_4e64_bf02_c40d89012f45"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089960Member"
      id="t_172_62d74e3a_a147_6ce4_afe7_7316ac945f4e">BlackRock LifePath&#xae; Dynamic 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089960Member"
      id="t_173_352ad416_46b6_5d02_847f_1d403faf9b63">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089960Member"
      id="t_174_3ba3e3f5_c162_39ed_57d3_bf947d7ca5d3">LPHKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_163_2b547683_de1c_494e_a0ab_2614c73d7740">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2045 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089960Member"
      id="t_164_cb1edb7a_4f69_463d_9c49_1dec750e45d7">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_165_bff11781_a57a_4cc2_b500_7f50194763ad">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089960Member"
      id="t_166_314351dd_789d_40af_bbf9_3c40f7e524f7">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089960Member"
      id="t_167_908ad105_dc1c_49a4_81c1_fe63b788276c">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_175_2576379f_de4e_86d9_481b_f4f2781b5993">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;25&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.23&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089960Member"
      decimals="INF"
      id="h_596_291678ec_f6d8_405f_b96d_6218b863521d"
      unitRef="USD">25</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089960Member"
      decimals="4"
      id="h_597_2ef52414_0991_4331_b3ce_a19201c1c99c"
      unitRef="pure">0.0023</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_176_dc0a8aba_d99c_8a6b_f282_abe4522ea2fe">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 18.70%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2045 Fund Custom Benchmark returned 19.15%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_177_065c91ee_41a0_7185_d6d6_e606d41703ae">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659532.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_178_5dcca2e2_8214_e74f_8dd7_5da835b5d430">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.70&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.17&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.15&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2045 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.15&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.58&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000089960Member"
      id="t_184_ffd9640c_f88b_4b64_aeef_7f9b455339a1">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000089960Member"
      decimals="4"
      id="h_598_813612fa_054f_4775_b4e8_7c451385da27"
      unitRef="pure">0.1870</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000089960Member"
      decimals="4"
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      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      id="t_187_eefcfbd5_5bc2_312e_de7d_0c43079c0719">LifePath Dynamic 2045 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
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      decimals="4"
      id="h_609_c1f64bff_654b_461d_b389_f219c156269f"
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      contextRef="FY2025_C000089960Member"
      id="t_179_2d71b899_96e8_abc1_de96_ee5ff9f1f1de">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;390,804,021&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;250,292&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000089960Member"
      decimals="INF"
      id="h_610_0451dfa0_c593_426f_a6b6_cc65c35e6481"
      unitRef="USD">390804021</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089960Member"
      decimals="INF"
      id="h_611_141194c1_d74d_4995_ba00_17170c1869dc"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000089960Member"
      decimals="INF"
      id="h_612_fed6d8cd_7ba4_408e_ad3d_5bf073953712"
      unitRef="USD">250292</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089960Member"
      decimals="4"
      id="h_613_eef65fda_729b_4c9b_bd11_65997dcdf603"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_188_6149327b_36a9_6849_97cd_fd0944a2a94d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2045 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2045 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089960Member"
      id="t_180_cf219b35_3e1d_5886_1d34_014a672baafd">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_181_fa9f8eb0_854d_8c70_febe_ea4f6142dc98">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_182_b45cebb0_fb64_4213_ac08_37e4bce12fcf">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_171_b4098c5a_8068_4d5e_b59d_9c8d665ebb95">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;78.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;16.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_614_ca972b7a_a566_4f7c_ae54_1c036b8b8699"
      unitRef="pure">0.784</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_615_e3938ca7_e9a7_4b2e_8955_c283b4799f92"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_616_f650c614_b061_438b_af60_d199aa9a786a"
      unitRef="pure">0.126</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_617_7f20eeba_f5f4_401a_abba_87d0403128bc"
      unitRef="pure">-0.073</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089960Member"
      id="t_183_03b1090e_b9d5_5196_4e54_e0359076926d">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_618_f2ee4baf_bb71_4739_8a4f_c8e776f2e36c"
      unitRef="pure">0.403</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_619_ad8b3e2e_2474_4f97_8098_59fafc3df2f6"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_620_76f6b21e_f5d8_4f79_b1c3_0d6ea846ab24"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_621_e80a6434_1872_451e_89bb_f22d1466e676"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_622_d154801b_0d7e_4bde_aac0_6fa7a273d2e7"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_623_bdb08c31_8e28_4282_a88c_33e657561a16"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_624_9dd1ee74_16ed_4ae4_9bf0_13db33fe88a5"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_625_c8d6e1a8_ade9_49eb_9998_f9abecaa4efc"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_626_ab7f8903_93d1_4d09_b36d_5825b060ea23"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089960Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_627_f08e056b_5839_4321_9a80_140daf77ae53"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089961Member"
      id="t_181_5319b244_65c7_420d_697c_e3e31aa7882f">BlackRock LifePath&#xae; Dynamic 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089961Member"
      id="t_182_03ff5ccd_4872_1379_f7a2_16473a3d4b3b">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089961Member"
      id="t_183_1f404ad7_eb4b_c0cd_5d08_aca44f071248">LPHRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_172_34599e47_e366_48f9_af0b_5ac9f7991e6c">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2045 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089961Member"
      id="t_173_114fa07a_d8bf_407a_a1ed_e765b77cec58">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_174_071563b1_c549_4395_ab80_f86fea31273e">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089961Member"
      id="t_175_4b914d46_9edb_4bff_9664_afa9453c1587">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089961Member"
      id="t_176_bfb779e7_92d0_4e5d_b1f7_5814b8e3bb34">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_184_2b7ee0ad_47c1_46c2_1587_4c21c2d92cf1">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;101&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.93&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089961Member"
      decimals="INF"
      id="h_628_b4832f81_2f30_4840_9d72_b0589cdca43b"
      unitRef="USD">101</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089961Member"
      decimals="4"
      id="h_629_db0127f5_4a51_4bf4_89df_f5b08b837ad3"
      unitRef="pure">0.0093</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_185_9afaae41_7f50_be13_793c_282957a9bc96">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 17.87%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2045 Fund Custom Benchmark returned 19.15%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_186_0b28e9ad_ecf3_2960_9297_87d5fb7a6f19">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659481.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_187_e47cda61_b10e_83ab_4667_8b0ed810a301">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.87&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.40&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.39&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2045 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.15&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.58&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      unitRef="pure">0.1039</oef:AvgAnnlRtrPct>
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      id="t_195_c66ef6ad_850a_3e79_4828_0a889d744bb5">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      id="h_633_10f0863e_1459_4450_a472_762fac886849"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
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      id="h_634_1764984a_625f_4e0a_9458_1fb0b83e25fd"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      id="h_635_88e4ca8a_3737_449f_adfd_94f9c5b16c66"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      id="t_196_03afc3da_334c_159b_6582_0168e5abe0a3">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
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      decimals="4"
      id="h_636_6eeb7986_fb55_4070_8b0f_5b2d4a6ad541"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_637_c1e03770_a3d9_4f05_be78_fbfa8817af85"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_638_d0260df4_30ca_465c_b6bb_5c5542c4c570"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      id="t_197_35705b4a_e12b_aebd_0fb9_bbcb2b23c4f9">LifePath Dynamic 2045 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_639_e8035b5d_353c_48f1_8c6d_a45e7813a369"
      unitRef="pure">0.1915</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2045FundCustomBenchmarkMember"
      decimals="4"
      id="h_640_fcc9915b_d2eb_4ccd_85c9_05e489d12785"
      unitRef="pure">0.0958</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_641_bb659cda_dd21_4679_8712_ed89c4ef04b2"
      unitRef="pure">0.1068</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_188_8acf1652_88b0_6be1_d33d_e2b3193d0b72">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;390,804,021&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;250,292&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      id="h_642_777333ff_8da8_4cfc_9e9b_bfcfc87024e0"
      unitRef="USD">390804021</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089961Member"
      decimals="INF"
      id="h_643_0af05c3d_575b_47a7_99b3_e3a4bb2d28a8"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_644_e5857be9_0244_48e8_b75c_a3d385891672"
      unitRef="USD">250292</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089961Member"
      decimals="4"
      id="h_645_aff5f3e4_ef2e_4f14_a80a_ef4633282470"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_189_927a2c81_2cdd_6902_7421_c259ffd4a84c">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2045 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2045 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000089961Member"
      id="t_190_a84f143b_b71b_4999_f93c_ff496a948d4d">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000089961Member"
      id="t_191_644d62f4_15d5_b9f3_c875_48847b9cf633">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_192_79c0b1ff_0440_367b_cef6_10101522560c">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_180_b5fbff56_ed18_45ff_ad22_d381f5aa1a40">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;78.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;16.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_646_d57fa1cf_9d16_433c_87df_a6d3c8f3d4c8"
      unitRef="pure">0.784</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_647_6395dd4a_ac48_475d_b99e_fa7d34da9a51"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_648_fe0d0852_365d_4c70_9c9a_9c2138efaf73"
      unitRef="pure">0.126</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_649_b4ed7635_180a_496e_870a_96d0ceed373d"
      unitRef="pure">-0.073</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089961Member"
      id="t_193_4a1e3d8f_b79c_b3cd_e6f3_8df88a76b504">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;8.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_650_fa50b4d6_bd5c_465d_ab6c_df43870dbda8"
      unitRef="pure">0.403</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_651_70705672_bfae_4470_8803_0136872dd795"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_652_147c6657_1501_41ac_a2eb_96c58d6acbdf"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_653_7f985b33_85ad_4aaa_94cf_96cbb43a4291"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_654_a4ebad68_f899_4d00_bdd3_d779b0aab593"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_655_9e60dd83_6268_4b5e_b2c1_a007f4d7e531"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_656_59b503ff_c2c9_4143_86ed_dd54b4b5c2de"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_657_c6006067_96a6_4f1b_9f45_afdeac7a7b9a"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_658_d742bffe_1c64_48bc_87ac_4285b1d6bd0d"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089961Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_659_d53ba767_8f5f_4ed0_b8e1_9167cff81f92"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000063261Member"
      id="t_190_afb09cfb_a4c8_73f3_7c93_461277b1f720">BlackRock LifePath&#xae; Dynamic 2050 Fund</oef:FundName>
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      contextRef="FY2025_C000063261Member"
      id="t_191_13005f3c_1d17_2545_d316_f1eae85f4d43">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000063261Member"
      id="t_192_ce6f0c07_4708_9200_489d_fff4a4d73a9a">STLFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_181_4651fdc4_8097_4059_a0a4_806e4993d0df">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2050 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000063261Member"
      id="t_182_8c64ae16_70ab_4c5c_8b2a_6db12aabf907">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_183_9970260a_1e92_4fbc_9315_d9158e86557a">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000063261Member"
      id="t_184_0d78eab8_93b6_4c60_9a3d_a0cc2d1d4148">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000063261Member"
      id="t_185_0474a4e2_fc5b_4771_945a_ba1d4ef4c817">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_193_baa26093_639c_326d_7625_b51924cf6f1b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;55&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.50&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000063261Member"
      decimals="INF"
      id="h_660_b7f23aa0_1a1a_48df_ab8d_746caf19ab37"
      unitRef="USD">55</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000063261Member"
      decimals="4"
      id="h_661_faecd3e2_31f2_4a37_bd6a_52f75806f6a0"
      unitRef="pure">0.0050</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_194_3902f60a_789a_6d7e_3b1e_cc5003b239c9">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 20.05%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2050 Fund Custom Benchmark returned 20.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_195_79581da1_cd02_e98d_5102_543b2fb9e47a">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659468.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_196_27b5f747_f9c0_d9e4_71a7_a2ae42d37f16">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.05&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.38&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.23&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2050 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.41&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="t_197_7c90d1dc_919c_b3c1_a16d_b85c175902fd">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_662_c1e6c7a5_9342_446b_b10e_639f842d9b6a"
      unitRef="pure">0.2005</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000063261Member"
      decimals="4"
      id="h_663_f895fec5_159d_4ab3_ab0f_af95405ecef0"
      unitRef="pure">0.1038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000063261Member"
      decimals="4"
      id="h_664_09b1ff5d_2428_4967_b25d_274ded191a3b"
      unitRef="pure">0.1123</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000IndexMember"
      id="t_204_96fe9be2_cc20_d23c_a823_5ac9919f4c64">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_665_0aea0f2b_1d81_4266_bad4_59073191256a"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_666_e160c81a_0893_42e5_b7a4_9241100d5db8"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_667_2a676663_8774_4c1b_9923_cc098890dafa"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_205_c37ebf0e_1437_cef5_cd83_004f964e15cd">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_668_20c749b6_3070_483e_99a7_bd0a2be03689"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_669_4a3f0bb4_cc6b_47e1_92ac_0d7db0c58faf"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_670_b60ff707_9d84_40f2_878c_f50b1fb274f9"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      id="t_206_584193f4_edfd_91ef_876d_28636f57125a">LifePath Dynamic 2050 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      decimals="4"
      id="h_671_80d236a4_3263_40f1_adf3_6c06c2a3d627"
      unitRef="pure">0.2074</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      decimals="4"
      id="h_672_34151a06_ccaf_4d57_9f2c_1385d2d31e4c"
      unitRef="pure">0.1041</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      decimals="4"
      id="h_673_cbe6b4b0_d52e_4eef_82d3_063bcc004bbf"
      unitRef="pure">0.1119</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_198_99817365_2fc0_91c0_3784_2c2354158361">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;425,407,630&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;31&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;307,816&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;23&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000063261Member"
      decimals="INF"
      id="h_674_24368fca_0fc3_4691_a983_f9b838b18113"
      unitRef="USD">425407630</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000063261Member"
      decimals="INF"
      id="h_675_e27858d6_9681_415e_84da_71ef634848bd"
      unitRef="Holding">31</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000063261Member"
      decimals="INF"
      id="h_676_784b6d3e_473c_4ac5_83b8_9c6042c2e964"
      unitRef="USD">307816</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000063261Member"
      decimals="4"
      id="h_677_3dbefeaa_0bed_4aa5_959e_c652a062b169"
      unitRef="pure">0.23</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_199_d68a4ceb_b3dd_8c46_72c2_aa7befe9ccea">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2050 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2050 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000063261Member"
      id="t_200_2623cf05_07ba_c5b4_637c_2218b9d4a934">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_201_6ff95973_6601_530a_ea69_d086b0fa5338">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_202_3fd5c4b9_c996_1cb5_d1e0_f8c458d14865">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_189_04441965_e166_423e_8b66_14b9a0de6b8d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;86.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;17.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(10.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_678_d948d29e_0a95_4092_95f5_95a810a01d4f"
      unitRef="pure">0.860</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_679_145b3ce1_36a9_4152_b8a6_4e19f71e30e1"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_680_26b5a518_e8da_4ff5_b2fb_7f856bde4350"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_681_1824130b_5b91_4cf8_8a7b_396b9546a339"
      unitRef="pure">-0.104</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000063261Member"
      id="t_203_c699bffb_bcc5_c7bc_8b4e_cdabcf238575">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_682_08f5765c_013b_48c2_9866_a24820e8e559"
      unitRef="pure">0.450</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_683_4ffd12ad_8502_484b_8344_bea2b61e5fab"
      unitRef="pure">0.151</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_684_8bc5038c_1b72_43e2_b201_fa8b4ca92147"
      unitRef="pure">0.102</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_685_0f5da6d8_ff42_4123_bf5a_74e2231979af"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_686_4bf96e1e_8d2f_4a63_bde1_5031a66371a0"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_687_bf0a02cd_43f1_42aa_b4f9_856ed8f5d8b8"
      unitRef="pure">0.036</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_688_b9c6f3c6_1c2c_41ab_8469_5598e61536f4"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_689_47bb050c_8c20_47c2_adef_5e84f16a766f"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_690_1c772fda_3ed9_466a_9e23_9843179637f5"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063261Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_691_5fa0ec55_abc7_4160_a71d_06aef8d27999"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000063260Member"
      id="t_199_d5fe6472_d77f_73f6_5c7b_395b68ddf600">BlackRock LifePath&#xae; Dynamic 2050 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000063260Member"
      id="t_200_6e3a5284_bf64_c703_db29_c202abed1cf5">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000063260Member"
      id="t_201_9a8d1665_bcd9_9d9a_a28a_9cc60cc53f9b">LPRFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_190_f222531a_52be_46a2_a2e1_17724bea446b">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2050 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000063260Member"
      id="t_191_ec4b4ed4_9222_4158_ad96_9d3538a1662d">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_192_a163a95d_b727_4ab3_a047_fe69e41dafaa">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000063260Member"
      id="t_193_afacc825_d0ec_4acd_abac_c1d7be1985e3">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000063260Member"
      id="t_194_23768f8b_f9da_43d1_a3c8_5e70b8670218">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_202_bf416aed_2f19_d01d_47a1_9bbc3129b902">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;82&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.75&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000063260Member"
      decimals="INF"
      id="h_692_b4c5443e_d112_45d7_9c11_5e01517d1cc8"
      unitRef="USD">82</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000063260Member"
      decimals="4"
      id="h_693_ee95cffd_a574_4a53_9991_2b037cad28fc"
      unitRef="pure">0.0075</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_203_50fafe0d_35cb_22b0_63d5_4b6ea0e9b2c0">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 19.79%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2050 Fund Custom Benchmark returned 20.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_204_2199d872_7911_391e_47a9_b80fa70e62cf">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659405.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_205_fefddf4b_0803_b814_032e_802b812a4f82">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.79&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.11&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.95&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.50&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;8.93&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.36&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2050 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.41&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_214_80d26905_b5d1_3847_cc20_eda849d349af">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_702_15c15500_7567_4483_925a_123afb9201f5"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      id="t_215_71ebefa6_18a7_f7ed_543c_647c37103171">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_703_f0d1a5f8_2d04_4556_be8b_d47a5d82d468"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_704_709b50fd_1d6e_4c82_bc3e_1b26494e16ef"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_705_7813ff1f_6bea_4cbd_bc43_915464eb04dc"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      id="t_216_b63a333a_3dc4_488e_bd45_9a1763417eb6">LifePath Dynamic 2050 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_706_e9aefbb9_1008_4631_ac7e_7cbbf70fdc44"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_707_5fb11494_a769_4f7a_8096_cf8cbd6fc5c0"
      unitRef="pure">0.1041</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_708_e417567d_401c_4294_9c4d_269ce22dc477"
      unitRef="pure">0.1119</oef:AvgAnnlRtrPct>
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      id="t_207_560198a9_1aea_472e_47c8_066e89dc7b3e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;425,407,630&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;31&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;307,816&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;23&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000063260Member"
      decimals="INF"
      id="h_709_3b88ca83_cf63_4898_bd7a_70c7e72c85f1"
      unitRef="USD">425407630</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="h_710_ea95f3cf_95cf_4b7f_8893_ba4472cf987d"
      unitRef="Holding">31</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_711_7f1adf9b_ea2f_4bb3_8afa_d014dc5a8510"
      unitRef="USD">307816</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000063260Member"
      decimals="4"
      id="h_712_5e18d91f_0d09_4baa_8e68_3b0689186aef"
      unitRef="pure">0.23</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_208_fde95514_b7da_170c_dea6_af010fb9b24b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2050 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2050 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000063260Member"
      id="t_209_0a8ae767_2807_c6e1_24c5_1d8bc6613dcc">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_210_9f77dd39_fc52_d8fb_d52f_e3ef29eda800">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_211_bb014d6a_8cb1_f011_e4ea_565c4a18b3bd">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_198_8a3bade7_e53e_42cd_ad5a_efb453469034">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;86.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;17.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(10.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_713_92b1d5b0_f8b9_41c8_8afa_b30c2010ac8d"
      unitRef="pure">0.860</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_714_46632f55_9815_417d_9a04_77b5e28311e9"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_715_f2be9319_eb5f_4ecc_94f3_872b48797e03"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_716_5804cea4_3038_4d30_8122_fe9c2aea0e0a"
      unitRef="pure">-0.104</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000063260Member"
      id="t_212_10e27421_ed11_e218_76db_9a6f4fd53cc3">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_717_8aa121b5_1681_468b_944b_5f049330a72e"
      unitRef="pure">0.450</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_718_1209b212_5a80_4da2_aae9_3704301b93ef"
      unitRef="pure">0.151</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_719_3e9c37b9_cdca_4f4f_b308_51bebffe0b86"
      unitRef="pure">0.102</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_720_1bf4eede_aeee_48e5_aa81_28ad11d2f321"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_721_7628f37b_db2b_4b99_915a_41b056c3532b"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_722_991849e8_4f8c_4fbd_b3b0_79e4b1d48433"
      unitRef="pure">0.036</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_723_4827494e_2620_46bc_ad15_25be2f6fe863"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_724_bcab0995_5757_4505_8584_efa09996947f"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_725_60f21ca3_65ba_494a_87e5_942dc3b941e0"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063260Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_726_2a0c8a22_ee31_47bc_bf1e_69c300dcc80d"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000088844Member"
      id="t_208_4fb077e5_7a1c_dcbf_1a9a_e6f33954175d">BlackRock LifePath&#xae; Dynamic 2050 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000088844Member"
      id="t_209_6b945d40_e1d2_ed03_7b61_0ab3c56b2e1a">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000088844Member"
      id="t_210_3905ea5f_1af5_b9d1_f7e5_7839bfc09dd7">LPCPX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_199_252a3116_ca78_4467_920e_9448f5110c0e">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2050 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000088844Member"
      id="t_200_382ec0bb_d461_40a6_be66_310615d2b8f6">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_201_d4d30a9f_7965_4220_9743_ec4d6402946a">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000088844Member"
      id="t_202_d2c73ef3_e956_4fd5_a3f4_3730711986bc">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000088844Member"
      id="t_203_e10ee638_e304_4da1_aa6c_59a341262408">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_211_b3bfbe93_608d_96c2_ab5b_ae106a3337f4">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;164&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.50&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000088844Member"
      decimals="INF"
      id="h_727_d1c08d67_bd92_46ab_bd83_421928363f67"
      unitRef="USD">164</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000088844Member"
      decimals="4"
      id="h_728_abf71a62_ef76_4386_b4b7_9e7f0ffdb446"
      unitRef="pure">0.0150</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_212_c5d1d590_f8dc_c33f_e58b_58d060c95e8b">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 18.85%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2050 Fund Custom Benchmark returned 20.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_213_b268f36e_4b24_3e43_bc0d_076d43fabcc9">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659404.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_214_ea92869a_2f88_4639_1cf4_ee8059691919">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.85&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.29&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.26&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.85&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.29&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.26&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2050 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.41&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000088844Member_WithoutSalesLoadMember"
      id="t_222_12fefffc_f560_96e6_9373_c03b831034e6">Investor C Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_729_feaaf2fd_8290_4157_b6a1_4bed9c9cedd6"
      unitRef="pure">0.1885</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000088844Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_730_2a5c3fa4_bd68_42c4_ae48_33caa8be427c"
      unitRef="pure">0.0929</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000088844Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_731_2fab17c6_ac4d_4954_9033_5f49732c88ca"
      unitRef="pure">0.1026</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000088844Member"
      id="t_221_786748b2_ae9c_a02e_373b_c3ec74e77378">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000088844Member"
      decimals="4"
      id="h_732_6833ede7_17ff_45be_bf57_c90bf13edbe5"
      unitRef="pure">0.1785</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000088844Member"
      decimals="4"
      id="h_733_a47c88f4_a5b0_4ffa_bb1f_fc99fb613dd5"
      unitRef="pure">0.0929</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000088844Member"
      decimals="4"
      id="h_734_fdf432ef_7598_41df_ae3b_80c30c2f148b"
      unitRef="pure">0.1026</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000IndexMember"
      id="t_223_d9bb56a5_d8c4_4766_a9bb_857340895f1c">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_735_36d6d1fe_6668_455e_810b_962c6180376c"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_736_5fb7e269_2a21_4b3b_961b_63709d8c65ca"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_737_0ec5dfaa_fa3a_4659_9906_ced993cd2426"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_224_83cf1354_84fb_97c0_a4bf_bee65babc295">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_738_8487e9c0_a685_4489_af08_bcc89c83fcc4"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_739_90ab63e8_ddb1_4631_9e67_4d578f74dd28"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_740_00e2e5ad_37bb_40f0_a2e4_54ca2fa2e60b"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      id="t_225_927e3f9b_457f_db30_8014_f36982cfe72d">LifePath Dynamic 2050 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      decimals="4"
      id="h_741_82f5bc98_cd7e_45f6_a6d2_5861f1bf21d5"
      unitRef="pure">0.2074</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      decimals="4"
      id="h_742_30bdf833_48a6_4bf7_ab9e_b68eabf7873e"
      unitRef="pure">0.1041</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      decimals="4"
      id="h_743_b32f887f_b90c_4077_b229_bc81028cb021"
      unitRef="pure">0.1119</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_215_17dacfa1_5a7b_9c70_8dc9_cfb5563903e9">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;425,407,630&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;31&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;307,816&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;23&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000088844Member"
      decimals="INF"
      id="h_744_5b87c3ff_5dd1_4c16_b258_2822b53a0515"
      unitRef="USD">425407630</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000088844Member"
      decimals="INF"
      id="h_745_6bbf71be_54f6_41a4_a78c_e282ace9d96a"
      unitRef="Holding">31</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000088844Member"
      decimals="INF"
      id="h_746_e0abcc59_b291_4bcd_8588_70b77e0d242f"
      unitRef="USD">307816</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000088844Member"
      decimals="4"
      id="h_747_2004845d_6282_4662_8239_5d2e99fe175f"
      unitRef="pure">0.23</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_216_ec148870_e549_3a5e_f0b3_8d3a066c9ece">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2050 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2050 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000088844Member"
      id="t_217_0bc2f62a_1c56_924d_0bee_0af114bb68d1">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_218_db7aaaa3_a3f6_ce8a_2b7a_16dfe3eb90aa">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_219_37175593_75e9_33b5_74fb_399be35caaac">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_207_4f5d5d12_16fa_4536_839b_7dbd28b6064b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;86.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;17.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(10.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_748_65239290_cd5e_4e85_b414_39e43c205d9f"
      unitRef="pure">0.860</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_749_ad4b977e_cca4_42eb_869c_b41bfa8c8e22"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_750_1c113109_e178_4977_8107_11409737aaf7"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_751_190d2888_bb4b_4f91_8f14_c4b779a90716"
      unitRef="pure">-0.104</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000088844Member"
      id="t_220_0ca64de3_584c_4ff1_4543_77783e20476e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_752_d8f32a30_679c_4f52_b241_e55f93573778"
      unitRef="pure">0.450</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_753_efa977b2_ce52_45a6_abf1_ea55666f5da9"
      unitRef="pure">0.151</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_754_4e1aacbe_7e5c_4ecd_a878_094b04dc7b8a"
      unitRef="pure">0.102</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_755_c1db0c81_35bc_4101_8d21_0aa62538738c"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_756_54d46bfc_370b_4b1d_8251_2ad3fcf11178"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_757_e4a8f64d_d8ab_44ef_9b0b_1acf95abb713"
      unitRef="pure">0.036</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_758_e1bf6081_23fe_490e_beaa_a800136a99b2"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_759_934a2f55_533f_4d1a_91e8_4176dd2b684f"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_760_706d6df2_c519_4ef7_9d30_1624724c1ecf"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088844Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_761_f76253e3_885b_40aa_aa99_a25093585a59"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000063262Member"
      id="t_217_39f2b767_b3a7_33ef_490f_d297ea2c1524">BlackRock LifePath&#xae; Dynamic 2050 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000063262Member"
      id="t_218_400c3264_a112_0e16_bbac_525a2eb9c3a0">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000063262Member"
      id="t_219_62dfc662_6337_d47b_13f4_0f66088c211f">LPSGX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_208_24547378_ea7a_411a_b750_c9fc70a44de1">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2050 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000063262Member"
      id="t_209_1000ea38_dd01_4f9f_92fe_a7e0cae43fbe">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_210_a47393b4_fd8c_41a2_ad4b_daf6dc83f7d6">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000063262Member"
      id="t_211_bfa863c6_8608_40b2_884f_bbfb9f19a1f7">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000063262Member"
      id="t_212_df750824_04e3_4934_b386_4055d117e4a6">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_220_d3b7c56e_59b2_2aa0_4b98_6d6348087c55">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;28&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.25&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000063262Member"
      decimals="INF"
      id="h_762_d2a1bbf0_a62b_4c72_a789_64c221651fa1"
      unitRef="USD">28</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000063262Member"
      decimals="4"
      id="h_763_afc8f6f7_6c83_4de0_afcf_ad20ad3785f0"
      unitRef="pure">0.0025</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_221_0f69b348_8400_6c85_6ebc_db1b9260aded">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 20.37%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2050 Fund Custom Benchmark returned 20.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_222_3e3365b0_5e74_8281_d078_0eebee73875f">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659341.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_223_c554c2fb_ae32_0850_b2ae_7918e38e8a38">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.66&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.48&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2050 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.41&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000063262Member"
      id="t_230_6f039410_cd89_a7c0_976e_8da1735a1f4a">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000063262Member"
      decimals="4"
      id="h_764_2b5e8fb0_f37a_4f68_bb8c_fc7cb0043f56"
      unitRef="pure">0.2037</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
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      id="t_233_c793d4df_351c_4104_9658_5912cdf5d3b9">LifePath Dynamic 2050 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
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      id="t_224_3dfaba99_8b2d_e019_5eb9_33f0f9e08f7e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;425,407,630&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;31&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;307,816&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;23&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000063262Member"
      decimals="INF"
      id="h_776_428b52da_8d35_45b1_abf7_ac7a01efe1b3"
      unitRef="USD">425407630</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000063262Member"
      decimals="INF"
      id="h_777_1b5caf16_41e2_42af_bf40_50b3f7beed41"
      unitRef="Holding">31</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_778_2cc566da_dbe0_4ba2_b3de_e1c76c0b47eb"
      unitRef="USD">307816</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000063262Member"
      decimals="4"
      id="h_779_b21ae2e4_3f6f_4bbc_8c09_01dc258aa1fd"
      unitRef="pure">0.23</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_225_70e7ad80_b881_f4e2_99cf_dafd4a052e87">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2050 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2050 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000063262Member"
      id="t_226_02c4a8f3_321f_5640_f26d_3725dd1fe020">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_227_5f0a64f5_bd0b_b674_d17d_69870d31cc12">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_228_6be8c283_400c_7ccf_6179_015b57faac66">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_216_3c21a72d_0e1f_4a0d_96f4_ee6bceebd554">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;86.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;17.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(10.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_780_9832bf6b_3ef0_4d84_815a_6b410ba0a1a8"
      unitRef="pure">0.860</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_781_db3f36fb_8c5b_4c83_9262_83c0472b2652"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_782_3128b8a1_a5dc_479b_aac4_45e388114930"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_783_bc63a41e_9c3e_4f00_910e_6d34c6f5800d"
      unitRef="pure">-0.104</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000063262Member"
      id="t_229_7794314b_b604_f331_c85b_c70385a31858">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_784_84005f28_35f2_4d06_a068_b172f1745e98"
      unitRef="pure">0.450</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_785_20aaeb71_f525_456d_a6cc_7e58f6477842"
      unitRef="pure">0.151</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_786_32f17afa_354a_465d_b97d_d1cb5ea480df"
      unitRef="pure">0.102</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_787_706e476d_3af9_49fb_bcd3_84dc894ab874"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_788_ac4d3901_4299_42af_bc99_d1d3edd0a4dc"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_789_dc2b8762_6086_4439_8575_351da0448476"
      unitRef="pure">0.036</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_790_95197207_239f_462b_a1d4_1c8dd12bfb40"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_791_98e01677_1ee2_4c32_9516_f2a568b9de29"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_792_03706542_992e_454d_be87_9f83a8df11de"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000063262Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_793_91b56aa3_2813_42b2_be2b_8179d9190391"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000082490Member"
      id="t_226_725f95c9_e5d6_2fb5_1207_781cfa3c6a39">BlackRock LifePath&#xae; Dynamic 2050 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000082490Member"
      id="t_227_bdc82cd6_a6e0_7b70_f1ee_277a7e93e8d0">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000082490Member"
      id="t_228_1d1f4d3b_a676_e977_ee8b_96ba2d8ec6cf">LPRPX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_217_41cb1bd1_5fac_4767_acc7_895bf3af42c9">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2050 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000082490Member"
      id="t_218_7ab95f5a_5766_4374_bb8b_76c1881747fd">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_219_5c4f9c41_f004_43a5_bb45_886b7596275f">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000082490Member"
      id="t_220_0b64661a_410f_4b6a_a573_c706bf080eaa">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000082490Member"
      id="t_221_2928f26f_8664_481e_b2cf_7950ef772827">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_229_e8b3c1b0_8b43_36bf_bc7a_ee4a02d7fd7f">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;104&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000082490Member"
      decimals="INF"
      id="h_794_d1a2abb2_0815_4f91_bbce_78f50a7eb4c5"
      unitRef="USD">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000082490Member"
      decimals="4"
      id="h_795_27adc701_f91e_407a_97f9_dd40d7883e40"
      unitRef="pure">0.0095</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_230_9dd9a4c6_7589_c25a_84de_1f96762c3578">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 19.53%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2050 Fund Custom Benchmark returned 20.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_231_072121ed_1ec3_624e_14aa_328f1dabbe4f">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659328.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_232_42a3ef03_ce99_f92d_4281_946c59ae5693">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.53&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.89&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.73&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2050 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.41&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_234_2d837aab_aa9b_3407_2f79_7748a0436bb4">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      id="h_800_851aeb84_366c_4fb8_ae98_3a46b77daa45"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      id="h_801_15e8cbe5_3ef8_4b67_a597_b723e5a6b01f"
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      id="t_235_f494e1af_1817_7bcb_9aab_214c5decfe7b">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_802_ef378481_f242_497a_945a_a3d689d84b59"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_803_0e03948d_e9df_40f0_970e_5bce0730e13e"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_804_89a1d086_42c6_4afd_8f9c_eb64ad4c6a1e"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2050FundCustomBenchmarkMember"
      id="t_241_656e5b77_8c5c_e66d_0638_94cb144631bc">LifePath Dynamic 2050 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_805_dc03e481_8521_4241_b6be_7844618ad7c8"
      unitRef="pure">0.2074</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_806_4cb4970a_eece_4869_bec3_0eae1b4abce9"
      unitRef="pure">0.1041</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_807_5bd6c551_2e30_4f98_b981_598989a0062a"
      unitRef="pure">0.1119</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_236_f3e9dde7_f123_acc5_36c8_b572ab72b7b9">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;425,407,630&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;31&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;307,816&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;23&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      id="h_808_7e698215_f2dc_48c4_af6f_0538c6efe146"
      unitRef="USD">425407630</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="h_809_d2d8a125_222e_4640_a617_e76d43d4eab1"
      unitRef="Holding">31</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_810_566dfe69_1675_4fe1_8687_6bab329efdb4"
      unitRef="USD">307816</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000082490Member"
      decimals="4"
      id="h_811_e3cabbb3_67fd_4537_a7d4_f3ce3a8fbdeb"
      unitRef="pure">0.23</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_242_055dabc1_1993_6fdb_0048_ade45c62ad9e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2050 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2050 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      id="t_237_27b0b2e1_b4ea_95cd_22e2_5fe0b97dac78">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000082490Member"
      id="t_238_393f31b0_49d5_1aaf_ca67_c249a8040550">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_239_aa609e52_6efc_2710_c33e_c64d2ba543a9">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_225_f766e7e0_0e13_4371_a389_d761d2a72243">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;86.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;17.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(10.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_812_5d0577fb_b497_450a_9a85_d230fd7a2dae"
      unitRef="pure">0.860</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_813_ee8df452_c17e_4e5f_aec8_a810be62c641"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_814_9335626e_755d_4a0b_80dd_653c9ac40a12"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_815_285d5bb8_87d0_440e_b2e6_8562e36f5d42"
      unitRef="pure">-0.104</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000082490Member"
      id="t_240_4233a519_1c34_d942_562b_01c7f583ed3d">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;45.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_816_99706c92_5273_4efb_8dbf_ef9345b2b855"
      unitRef="pure">0.450</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_817_a7ceb37a_e0bf_446a_954e_d7bb94f86a25"
      unitRef="pure">0.151</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_818_3251a055_80dd_466f_a284_9dc10b465d8e"
      unitRef="pure">0.102</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_819_71ed5e30_fc8c_4b4c_ad45_a617864901d2"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_820_648fab57_05b5_46b7_bb64_6a60c0c1f41d"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_821_cfe0865e_5119_421a_ae5e_793b10a5f389"
      unitRef="pure">0.036</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_822_5595e818_92ff_4a92_ac82_fc2f95f69f76"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_823_70003497_c356_409f_82c4_68c12ad774f9"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_824_6a1e3ce0_9f64_4ca1_b96d_e51389eb20a4"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082490Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_825_3db9250c_2449_406a_b442_d7135481a0a0"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089964Member"
      id="t_235_43cfd0f5_5fa6_5b20_2b34_2257d950820c">BlackRock LifePath&#xae; Dynamic 2055 Fund</oef:FundName>
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      contextRef="FY2025_C000089964Member"
      id="t_236_64f70edf_3bf0_7a51_8324_427aadb8f169">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089964Member"
      id="t_237_190570ad_e656_0964_57ac_87ee7a628cac">LPVIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_226_2ed3ac1a_c81c_4ba7_8a4e_73cf8be850d7">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2055 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089964Member"
      id="t_227_c71b2e2f_86bd_4f39_9e2d_2e37bcb71713">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_228_c333769e_e4ef_44e2_b2ab_61fcba0b6d4b">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089964Member"
      id="t_229_68143d0f_7ac4_4aca_920b_157de3e06be6">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089964Member"
      id="t_230_a12f28bb_5a47_4bbc_92e2_55dd27934aac">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_238_5651bb50_12db_64ba_3fde_16ce875bed07">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;56&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.51&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089964Member"
      decimals="INF"
      id="h_826_30324d03_a9c2_4824_8201_d2d727081f6f"
      unitRef="USD">56</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089964Member"
      decimals="4"
      id="h_827_7d016c92_76f0_4a1d_8214_edde7903de9a"
      unitRef="pure">0.0051</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_239_5ec79ce6_d759_fc3a_d68d_3cb71e29b559">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 20.92%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2055 Fund Custom Benchmark returned 21.59%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_240_0f6ae2c8_2ed4_e345_00e7_64d602d16170">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659277.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_241_10e571a4_721b_f2e5_ea63_45e1cfe1fba6">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.92&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.71&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.42&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2055 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.38&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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    <oef:AvgAnnlRtrPct
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      unitRef="pure">0.1142</oef:AvgAnnlRtrPct>
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      id="h_831_ee25a052_52a1_4c26_9562_39047656407e"
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      id="h_832_30e4de7d_3a12_4542_af07_cfaf447651d0"
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      id="h_833_d4fa6ca0_8abf_4cdc_a360_fdd4da959401"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_244_a1652163_ab81_618b_67c2_efe61e715844">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
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      id="h_834_e4c62867_918b_4a66_a2b6_b489e52ee012"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_835_d2d539ee_81b4_46af_8a4c_ae084a12a1c7"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_836_5c798c9e_f88f_43d4_aa40_c36169299a0d"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      id="t_245_c1d1db10_914d_090f_3668_0f60ba2d5dd4">LifePath Dynamic 2055 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      decimals="4"
      id="h_837_4d0faaf0_c8b3_4bc5_8f70_9189c9f91c68"
      unitRef="pure">0.2159</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      decimals="4"
      id="h_838_c75c8b73_798c_45d5_9d75_acf621470ab0"
      unitRef="pure">0.1076</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      decimals="4"
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      unitRef="pure">0.1138</oef:AvgAnnlRtrPct>
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      id="t_246_08e045ca_6c6e_8268_565d_5c3029dbc7ca">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;319,348,756&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;240,304&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000089964Member"
      decimals="INF"
      id="h_840_a3f10653_f61e_4fd2_9a12_b2f4d5affddb"
      unitRef="USD">319348756</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089964Member"
      decimals="INF"
      id="h_841_d7738fa7_e97f_4061_9790_390eed319177"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000089964Member"
      decimals="INF"
      id="h_842_7e9fc4e5_8f8b_4454_bf46_f7870ecd5643"
      unitRef="USD">240304</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089964Member"
      decimals="4"
      id="h_843_63696489_ab45_4c5e_80d2_fd8e4761871b"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_247_f7f6eb71_f243_1af8_9f5d_7875059c189d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2055 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2055 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089964Member"
      id="t_248_a940d622_18f8_58f3_d3ae_87b6d9bf9dd1">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_249_c67d7715_3a9d_ea9e_d867_5bddc3aeb62a">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_250_093804a9_d53b_eb4f_07f1_86e992ccdd9f">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_234_e9f2201b_76bb_4041_8798_aeb4e56a6c55">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;92.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_844_f2c5d199_95f7_4374_ac9a_e253045cf4a5"
      unitRef="pure">0.922</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_845_d6fa8d2c_e680_4e2b_b4b1_35a12a8024c1"
      unitRef="pure">0.120</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_846_64bf9f2c_109e_4e8f_a60e_85f020398841"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_847_9e527da6_685f_4356_818d_197d5a8d3f2c"
      unitRef="pure">-0.071</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089964Member"
      id="t_251_2a5742d0_caf8_3607_6cb1_398b78734ec8">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_848_5331c8a9_f44a_4277_8641_4d97eca7a884"
      unitRef="pure">0.497</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_849_bd4d94ac_f006_40e2_8279_a2851d815c03"
      unitRef="pure">0.150</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_850_cf958e90_5592_4475_8553_0e63eef5f902"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_851_4bf5623c_51af_451d_aceb_acea02db6c76"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_852_ae8b3256_3f8a_4d2a_8116_8e8c9d1cdd70"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_853_c8367a5e_8f62_4a9f_b8f6_0c5abc823354"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_854_d5c3c53a_e805_4ff7_b7fc_9186f5bccf19"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_855_ce8b16e7_b469_43b3_aa56_596fac7254f6"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_856_8c8cafd0_c848_4d53_b743_4d40859366cc"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089964Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_857_f8ce50b4_ead1_499a_9795_8f813d7f6da7"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089962Member"
      id="t_244_d72fb685_ac4f_59b6_afa6_5e0fcc6887a5">BlackRock LifePath&#xae; Dynamic 2055 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089962Member"
      id="t_245_75595c2a_ca04_83e9_4fe5_b2f96e473b7e">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089962Member"
      id="t_246_8d522d2c_4aa6_3f5e_94c1_fe9e9e480493">LPVAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_235_eef6c145_2abc_4a77_adc4_a6a69edd082b">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2055 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089962Member"
      id="t_236_5679cde1_ca99_4480_959d_6eaf4c3496c4">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_237_8d74f42e_45d5_4210_a5b2_4c3e63bdec4d">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089962Member"
      id="t_238_00bf04bb_8220_4bd7_9a78_a4a6342689e9">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089962Member"
      id="t_239_4d46bcb2_87a7_4c07_bb14_af2d00b2e244">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_247_a73bb5c9_aed0_0bea_2639_931ec7621f0e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;84&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.76&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089962Member"
      decimals="INF"
      id="h_858_431cda36_7d01_4642_8a1e_ad7c82f363d0"
      unitRef="USD">84</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089962Member"
      decimals="4"
      id="h_859_3c2cedac_811c_46a1_99b5_ec8e07c1b32b"
      unitRef="pure">0.0076</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_248_60860f8a_45f5_79ec_f144_2744c49876df">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 20.58%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2055 Fund Custom Benchmark returned 21.59%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_249_b31ca926_a2f2_31b7_b43b_f1f3a3e62015">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659264.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_250_9a82632f_5bfa_792f_01e4_da8c0bb80006">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.58&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.43&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.14&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.25&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.25&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.54&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2055 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
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&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;319,348,756&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;240,304&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      unitRef="USD">319348756</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="h_876_5bda97bc_dffa_4ae8_b23d_42112f1f6502"
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      id="h_877_5671a284_9990_4072_98f6_e05d7ade7711"
      unitRef="USD">240304</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089962Member"
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      id="h_878_300026f0_256f_4d73_a077_98bef2c5bcb4"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_252_93f53ef2_fd49_a692_dc25_8d5165566a5d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2055 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2055 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000089962Member"
      id="t_253_3d6aba80_eb38_2840_34b0_1fc720adc5ba">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_254_771da390_ff23_2302_fc4e_99973a3cc687">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_255_327d4bc7_9579_553e_6819_55972e465b44">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_256_34bffffb_3736_0cc2_77f9_72f32296422a">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;92.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_879_44b336e6_ed6f_4b04_a21f_8cbf5ea225b2"
      unitRef="pure">0.922</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_880_06edd9bb_fd62_4181_b3ce_b3ccd0e86a71"
      unitRef="pure">0.120</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_881_07d12545_83de_4fac_acd8_07f4b62e2d4d"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_882_f7412bef_2f1d_4c0b_b52f_00f512f2741e"
      unitRef="pure">-0.071</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089962Member"
      id="t_257_abf6fa40_6175_3004_ba8b_2c1b8cb3ed98">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_883_b343dbff_a905_48d4_8d0c_2cbdcf655e7e"
      unitRef="pure">0.497</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_884_45fa8424_61bd_4f7f_a5a8_cbe7bf4e52c4"
      unitRef="pure">0.150</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_885_49abf555_9107_43e6_afce_fb19a50589ac"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_886_8644ef8f_6d71_4c3c_86df_f522318d9b5d"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_887_a730dd62_cb33_4204_9b49_d3923521eb6c"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_888_dd8b5918_b0bb_4794_8e63_0865643db981"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_889_86407a9f_095e_4e9c_8617_64488ce62d4b"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_890_7fd79527_84c7_48a1_b7f7_4ace953bce00"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_891_8f96974f_1082_4b53_b3ef_8df8b08a8a4f"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089962Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_892_467da8d3_647d_4b43_b17c_aefa7211ffc3"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089963Member"
      id="t_253_23dbbb09_a2bd_5354_d493_4c2cfe03abab">BlackRock LifePath&#xae; Dynamic 2055 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089963Member"
      id="t_254_b858520e_bffd_ac40_3963_44fea95c66cc">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089963Member"
      id="t_255_ba17de7e_2f49_9eb2_10ca_b41c93eff63e">LPVCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_244_61e390d9_694c_4c88_a5ae_d336c5fb925d">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2055 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089963Member"
      id="t_245_759b321f_968a_48ab_81c8_3229253ce82a">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_246_12dfb7e5_2cff_4edf_a421_7fe65cb7f254">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089963Member"
      id="t_247_64331bea_8a77_4467_bea0_4a5eb246685c">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089963Member"
      id="t_248_2babd595_644c_49b9_a5fc_155a4f957fba">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_256_7faf74ff_0045_e477_c5a0_19f85786393b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;166&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.51&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089963Member"
      decimals="INF"
      id="h_893_1286136b_70d8_492a_a6cd_79a4d1a73287"
      unitRef="USD">166</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089963Member"
      decimals="4"
      id="h_894_387ba77c_808e_43e1_9cb0_6ab185a6274a"
      unitRef="pure">0.0151</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_257_68a36b6a_3c8c_d191_413d_7a7aae95a99b">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 19.73%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2055 Fund Custom Benchmark returned 21.59%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_258_0d49843e_bf54_3be8_a44e_32f9aa771f0f">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659201.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_270_7b52ffa6_b083_da5c_32c7_c59335fb4cdb">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.73&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.60&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.45&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.73&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.60&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.45&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2055 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.38&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="h_896_932119d1_d7dc_4833_8d21_bedd6c0a8eb9"
      unitRef="pure">0.0960</oef:AvgAnnlRtrPct>
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      id="h_897_bafc5e8e_206a_40eb_9703_4922a5ae988a"
      unitRef="pure">0.1045</oef:AvgAnnlRtrPct>
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      unitRef="pure">0.1873</oef:AvgAnnlRtrPct>
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      id="h_900_9aef29d2_be62_4568_a974_60d02daa90b4"
      unitRef="pure">0.1045</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_267_608e92b2_05db_b832_172d_90e26de88d72">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      id="h_901_8f5c0fa1_6402_4256_9400_7872ac0da47a"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_902_f5f28f3d_0cdb_41b3_bea0_e558b2b21dd6"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000IndexMember"
      decimals="4"
      id="h_903_4593e9f5_87b8_4588_bce4_ad066246ee9f"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      id="h_904_f02ad408_91cf_445d_a619_58b62bb2f0c9"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
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      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_905_7e054167_5667_44a7_ae35_91edb96de99a"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_906_d9477ab5_8371_4439_b829_3d192a9451b3"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      id="t_269_1834ea72_9259_3cea_65a7_6ea9cae32f64">LifePath Dynamic 2055 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_907_c1ad99ad_5d60_4d5c_be54_2af37ca8a922"
      unitRef="pure">0.2159</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      decimals="4"
      id="h_908_686e9a15_8abc_41d7_bcbc_e30fb5372c80"
      unitRef="pure">0.1076</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      decimals="4"
      id="h_909_9d0fc1ec_a4ad_4436_b772_479ef6fe9f62"
      unitRef="pure">0.1138</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
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      id="t_263_c55636bd_7387_cc29_b75c_49e4041250ec">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;319,348,756&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;240,304&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      decimals="INF"
      id="h_928_11e59078_bd3c_a2e6_ebb0_87595c951e19"
      unitRef="USD">319348756</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000089963Member"
      decimals="INF"
      id="h_929_ce84f369_8515_1c60_688a_b8b7bf3da929"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000089963Member"
      decimals="INF"
      id="h_912_64d63f3f_0356_4868_b751_00e2d7c46692"
      unitRef="USD">240304</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089963Member"
      decimals="4"
      id="h_913_27f1dff7_d1da_4b50_9564_322bb0e45276"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_264_a25fc24c_0f44_7e67_5ee5_0d5566c63f09">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2055 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2055 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089963Member"
      id="t_260_df540822_bdf2_3bde_6234_cfcfd8e3c2a8">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_261_5e3430db_fdb2_2d97_5322_08f882235c4e">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_262_92a5b0dc_e9cc_f6f9_9094_f221a620d703">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_252_89a0a142_080f_4e57_ae8c_0f2ca6e0d1ce">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;92.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_914_be12e4a3_6ed1_4426_baab_269df6379a8e"
      unitRef="pure">0.922</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_915_52d80029_b105_45fa_b568_d41d9ca11eba"
      unitRef="pure">0.120</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_916_de45cb76_e475_4341_932c_95c2b453525c"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_917_4372dcf7_c3ec_4d79_8b59_b26dfd61b632"
      unitRef="pure">-0.071</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089963Member"
      id="t_259_1d8e9e26_f4d3_12da_1d18_00373e0cbe56">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_918_b23b2e2b_50e8_4e78_b6a9_c4f0ea141cb0"
      unitRef="pure">0.497</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_919_950c9430_4e54_462c_8327_a7c3d320aa39"
      unitRef="pure">0.150</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_920_934cc8cd_242a_43b0_9fc9_bcc7d8596250"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_921_954809f7_ac84_4bb8_b4e4_0c69a13edaef"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_922_5c069ee2_487f_48cc_a24c_2429513c0086"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_923_a55ae46a_7c79_4189_b08b_e8a133870a09"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_924_e949af68_788b_4f21_8f7c_8579406647cd"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_925_629e3020_1f20_4304_94be_2d9a701fa6db"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_926_9adb9151_6d46_4903_8326_45bdaf493230"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089963Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_927_ffe90420_cf82_46c2_90ff_9e971ca2176b"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089965Member"
      id="t_262_0ad60994_dc7f_99d3_2dd2_cf896782c3df">BlackRock LifePath&#xae; Dynamic 2055 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089965Member"
      id="t_263_b70423aa_d512_b985_d519_d152a37d19a4">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089965Member"
      id="t_264_07e466a7_780f_0f23_4659_add8103839b1">LPVKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_253_09c0f412_55a6_4d17_9258_c6c067dae7ab">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2055 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089965Member"
      id="t_254_194b2897_c09b_49d7_b50b_6b75ab8cc75d">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_255_af725557_3b66_4b77_9d07_325efaabcfb7">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089965Member"
      id="t_256_6278551a_80da_4106_94ac_a7360db7d768">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089965Member"
      id="t_257_32bb902b_c180_43ea_b23a_035a227f0e10">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_265_015e0c1f_a090_09b3_6be7_fe481c3d1c2b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;29&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.26&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089965Member"
      decimals="INF"
      id="h_928_39287173_0da2_4cde_9c84_053b785a544f"
      unitRef="USD">29</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089965Member"
      decimals="4"
      id="h_929_74a78999_3822_41db_bf6a_09e1150a260b"
      unitRef="pure">0.0026</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_266_5cd8033c_f2c1_9da2_1ab5_cf77bc8ab486">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 21.21%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2055 Fund Custom Benchmark returned 21.59%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_267_cb1f740c_7b4d_4425_d40d_1a9d36e6d36a">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659200.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_278_39af9009_a130_3323_1803_be4a339aa5f6">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.21&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.99&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2055 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.38&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000089965Member"
      id="t_274_6fd0796e_228d_4377_1d50_5af19deae22f">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000089965Member"
      decimals="4"
      id="h_930_d3b415ce_e7ad_4677_aadf_6b03126986b6"
      unitRef="pure">0.2121</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
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      id="t_277_68e8a67a_99b9_0418_23b3_25021b355588">LifePath Dynamic 2055 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
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      id="t_273_48baf6c5_9d58_9d91_06e0_9c5cd2ba8826">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;319,348,756&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;240,304&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000089965Member"
      decimals="INF"
      id="h_942_2ce5b78d_841b_487b_92b2_ae5db012ae12"
      unitRef="USD">319348756</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="h_943_1e4b5f04_3f50_41df_9cce_028f275117c3"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_944_e524b155_2eab_42d4_8b61_110626c17e67"
      unitRef="USD">240304</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000089965Member"
      decimals="4"
      id="h_945_f97229cb_1888_4380_923d_77c7f0a28cdf"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_268_7d06c872_4b8d_1d02_fea2_23145700eb41">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2055 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2055 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000089965Member"
      id="t_269_52028d36_4712_ed0d_4017_b14d118feb9b">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_270_9f372844_e3ed_45b5_2b53_6f19c48e486f">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_271_d83646aa_f34e_17bc_9bf3_7b77cab6cb78">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_261_2ad423a0_8e76_440e_ad9a_fb2fd038ef9d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;92.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_946_c09ecf2c_cc47_4667_90c2_8b41888148d0"
      unitRef="pure">0.922</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_947_f352b313_5214_43a8_9b9a_92d771de8d21"
      unitRef="pure">0.120</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_948_9ddb7810_6a9a_4d55_a1c8_75d3bb5b2c63"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_949_0837a816_1cee_41e9_b7d1_83759b67db7c"
      unitRef="pure">-0.071</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089965Member"
      id="t_272_b2805f94_17bc_ccd7_cfd0_b339694221aa">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_950_953fd86e_9b9d_4f99_b58a_b10939df3f8c"
      unitRef="pure">0.497</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_951_a663f303_f50b_4766_9112_d02cafc9f3f9"
      unitRef="pure">0.150</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_952_02ac9ce4_bfad_407a_ad1f_5294a0c0e63a"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_953_2dce1776_39cd_489b_a465_0610eeaf2902"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_954_25c70fff_564a_4da0_9175_87298d937a3e"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_955_dccea2d4_cee7_43aa_80ae_07b68a7526f7"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_956_f778be1c_c1f4_4d67_8bd6_2bf57e8afcc5"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_957_8f67ca31_027e_44c8_95b3_4a85fb2020ab"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_958_6cba3209_5740_46ad_a6d2_0eb7e2b6201e"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089965Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_959_210175d1_4a69_4808_b061_2565ea0a4612"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000089966Member"
      id="t_271_5e6e3ca0_888f_e051_763e_e35d493d6656">BlackRock LifePath&#xae; Dynamic 2055 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000089966Member"
      id="t_272_6385ff86_9309_84b9_35a4_b442629e84fc">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000089966Member"
      id="t_273_1a4e118a_94f3_f09f_47a5_3132f455dab4">LPVRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_262_ac74fcbe_68cd_4950_b3ac_b1eaa2c02374">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2055 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000089966Member"
      id="t_263_8e8a8542_1251_44c6_9aae_2e7d61622a90">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_264_8d77b876_9402_4aa0_8045_17a889e5ec59">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000089966Member"
      id="t_265_03e7a945_4a4b_4250_9058_a1e037f7c2fd">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000089966Member"
      id="t_266_e0e6e60e_9b07_4a71_b328_4cef93654a2b">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_274_f69505a7_c5b9_1744_2969_7301da91b5cb">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;106&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.96&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000089966Member"
      decimals="INF"
      id="h_960_79374acb_012a_44f6_af27_e5cec687dbe4"
      unitRef="USD">106</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000089966Member"
      decimals="4"
      id="h_961_ac679319_8e6f_4ef1_b690_74fb59b205dc"
      unitRef="pure">0.0096</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_275_61cc092f_4814_e6fc_3e5d_7bd402165e55">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 20.39%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2055 Fund Custom Benchmark returned 21.59%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_276_5d9d07f0_957d_a11f_5d21_d52daf7e56cf">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659137.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_277_4973d9a3_17f9_3eaf_2e6c_a79010ca6391">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.39&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.21&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.91&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2055 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.38&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      unitRef="pure">0.1091</oef:AvgAnnlRtrPct>
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      id="t_285_d05902cb_5ea6_58d2_401d_5374772edaa4">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      id="h_965_887d3fa8_54b6_4f5e_8c58_16283af940c3"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
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      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_967_91909959_f38d_4c41_a06f_a44db5038ad2"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      id="t_286_f1b06ef4_85d0_2a78_572d_61b9f2920aea">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_968_057b6659_8f82_4f7c_bdd3_abaf285f138b"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_969_1efacfdc_9ada_4e01_be16_3f309525df7e"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_970_31149576_d524_4eb5_a228_4605922e27b2"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      id="t_287_3581b26a_6710_ff13_8f53_72d4462b65c5">LifePath Dynamic 2055 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      decimals="4"
      id="h_971_23f17e3a_b115_4126_b60a_81085840a168"
      unitRef="pure">0.2159</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2055FundCustomBenchmarkMember"
      decimals="4"
      id="h_972_0ba74f54_5702_4f82_be9e_029cb9dafa59"
      unitRef="pure">0.1076</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_973_4e52f06f_17c2_4f83_bcec_1e8ec912df9a"
      unitRef="pure">0.1138</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_278_4b6b4b1d_0e95_684f_2cb0_6dafa0daf587">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;319,348,756&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;240,304&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      id="h_974_02e51012_5ad3_4cce_b374_9cc0a2c0db53"
      unitRef="USD">319348756</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="h_975_66c284ae_7ff5_4336_a101_9c2b22d36a90"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_976_07f25e1a_169c_405f_a878_c77ebe90a26a"
      unitRef="USD">240304</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="4"
      id="h_977_9f9d794a_6f26_495e_acd4_6bd43169fe3f"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_283_151a193f_703c_997b_d7c2_6a807a19d180">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2055 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2055 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000089966Member"
      id="t_279_777b4c0c_4e65_9f15_751e_8fe7c39047db">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000089966Member"
      id="t_280_f5bae745_2169_5256_50e1_3d86fb8e6cda">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_281_c19ad705_8de6_1936_23a7_6f52a5229a96">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_270_10806205_57e2_457b_9e65_1cf1aa0ded09">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;92.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.0&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(7.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_978_efd86b51_066e_4787_9329_3b226e859d80"
      unitRef="pure">0.922</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_979_6e7922d9_53d7_43fe_b062_106477f46ea1"
      unitRef="pure">0.120</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_980_34e4bbb3_332c_48c6_8069_644c7bd94119"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_981_cb010fc4_3171_45a8_a00a_2cfd27378c5e"
      unitRef="pure">-0.071</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000089966Member"
      id="t_282_53a9f2d5_f10d_479c_d3fb_3dd2a861fff9">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;15.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_982_8d47a82f_5184_4c55_afcc_105b21261efa"
      unitRef="pure">0.497</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_983_041095e0_955c_4cc2_8012_3049f406afcc"
      unitRef="pure">0.150</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_984_51d70b11_2ac8_4ce7_abb1_aac9b74b02da"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_985_d0d8744b_21e1_4f8b_a486_ae2b91ac6a10"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_986_3790a81e_df52_476e_ab6e_ad03c3f941e9"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_987_0ef2242e_a088_4d40_81b2_53689f4f81af"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_988_5277602f_d9ba_4993_b1c2_c92e39d8112d"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_989_35af9f48_c8ee_44bc_900e_4131af73bbe0"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_990_570ef254_3ff2_417d_b1ea_c86030f57350"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000089966Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_991_9ac21c72_03a0_40fd_847d_09c87df6e3a8"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000187070Member"
      id="t_280_bb6c4a69_c61d_16ef_55c1_157606f1d05b">BlackRock LifePath&#xae; Dynamic 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000187070Member"
      id="t_281_4e3b2b07_e95b_f2b0_d94a_bf5b51abcbbc">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000187070Member"
      id="t_282_eafc7fc7_acd3_ee92_c12e_c1a1430c65a8">LPDIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_271_91dddb28_7c0b_447b_b1a4_50911719329d">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2060 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000187070Member"
      id="t_272_98904083_4f43_455f_98d8_294ac646ad29">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_273_0b58efcd_8ed8_4bd2_8b98_56052f84d8ca">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000187070Member"
      id="t_274_b2284738_d424_4894_95d9_42b6f32b866f">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000187070Member"
      id="t_275_3769f693_95d8_4042_9ed2_1c3cc0ab8428">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_293_f48d0ba9_d9de_9eeb_7d8a_89290cf21eb6">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;55&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.50&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000187070Member"
      decimals="INF"
      id="h_992_9ab8a49e_f7ec_4c8e_8249_b909578f84b8"
      unitRef="USD">55</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000187070Member"
      decimals="4"
      id="h_993_521c9b8d_bf82_45ef_898d_0392b2491286"
      unitRef="pure">0.0050</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_284_8a9ee7dc_d6d7_2a0c_0c35_45cf6b8277f9">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 21.08%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2060 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_285_421d966e_b633_fb1f_41d4_3f7ac42d22c9">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: May 31, 2017 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659124.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_292_caef2a64_ccb3_b640_4528_92951ed8cf4f">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.08&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.75&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.05&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.55&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;1.75&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2060 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.80&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.21&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="t_294_fd0946cb_5e46_2a04_2fad_13cd9092fb2e">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_994_3ee4d366_c5ed_4a8f_84e1_50fab72837c6"
      unitRef="pure">0.2108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="h_995_ffbc3ba6_dc3b_4d31_b9b4_73bded424cbb"
      unitRef="pure">0.1075</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_C000187070Member"
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      id="h_996_e6a52137_f84e_426b_aede_4a89d13efd5d"
      unitRef="pure">0.1105</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_295_1248d058_a2d3_6a99_16e3_fab18d3c8824">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_997_6bd6f57b_a165_488c_83ce_e749003dd2f5"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_998_960a9f89_55c5_409b_9e5d_af094373b689"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_999_0ffc2868_0fa7_445d_ae2c_e196aae71c31"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_296_4c89595a_8b61_f9c8_6ca5_277787d18f6f">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1000_21654b5a_e7b8_4a32_8702_52991b5a3c1e"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1001_9ba65e95_73be_477e_bb80_1913088d6909"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1002_400987a9_c8c2_4d8e_a5c4_94f2748d2599"
      unitRef="pure">0.0175</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      id="t_297_655b15a2_0f7a_b656_8b7c_c407dc1450e0">LifePath Dynamic 2060 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1003_ef491ffd_2783_475f_b495_9d865e211541"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1004_ad6790a0_286c_4133_92c4_2f3465441f64"
      unitRef="pure">0.1080</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1005_f2bfb13d_fe24_43dd_b85b_4246a870da21"
      unitRef="pure">0.1121</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_291_e2fac81b_561f_8de2_6c0d_0432a540f76b">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;167,909,187&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;115,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;20&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="INF"
      id="h_1006_be637042_fc15_4aa1_8f78_37317f5c9621"
      unitRef="USD">167909187</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000187070Member"
      decimals="INF"
      id="h_1007_cf0ff07c_95cd_4428_ac1d_f323d60a7ea5"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000187070Member"
      decimals="INF"
      id="h_1008_764df728_19bb_4f0b_9364_c6a91f7f10c8"
      unitRef="USD">115348</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000187070Member"
      decimals="4"
      id="h_1009_a41036a6_85c5_4421_bc57_f4abd19cb26b"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000187070Member"
      id="t_298_0d4192b6_3a82_2ecf_012e_ebfbc653bf6e">2017-05-31</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_286_104ed429_dcd5_dca3_4789_ccdf3815ef56">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2060 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2060 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000187070Member"
      id="t_287_2310575a_cb60_7e37_d1e2_a34966df0381">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_288_be108f98_6e34_dd2e_b8d0_abc194e18164">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_289_d60971c4_ef21_58df_c16a_7160a5e95ef4">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_279_f437678f_0211_49f8_a7f8_36d9d34f1d3d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;91.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1010_0bc659c4_06ba_4c17_bac9_3e68414d6ac2"
      unitRef="pure">0.916</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1011_79c5e361_3eb1_4acc_a416_cd84a6666948"
      unitRef="pure">0.112</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1012_1a89ba44_55f0_407c_bdfa_5236eec948d2"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1013_94545b1e_d3a4_40ae_ad8f_c8a30467d7f8"
      unitRef="pure">-0.046</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000187070Member"
      id="t_290_d2fa00b2_9120_259b_056b_1132eac775ec">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1014_e5ed644f_76d8_4af2_8f4a_d7bc6b0d5255"
      unitRef="pure">0.490</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1015_eba9849e_39eb_485a_917e_50e4eb89c2e2"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1016_aa18b759_5c5b_4383_9ada_76235d0f7f60"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1017_5e0c1446_61b9_4a0a_9a13_b64196ac67f1"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1018_6ebf7df2_7824_4106_81a7_811b35b37e23"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1019_36f5f385_46fd_40d6_90fa_0b85784463bd"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1020_f946ed5b_f642_47d4_be93_0ff065ad9bca"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1021_fd947da6_3f9f_462a_806c_bf9d725c112d"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1022_a629a6ca_4f24_4e22_9e4a_ca513a3ca3a5"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187070Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1023_7ef4fa89_9d97_4414_93c6_f9c9ef75b224"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000187068Member"
      id="t_289_f51fd7a2_2cff_d8db_dd67_104f2ac789f1">BlackRock LifePath&#xae; Dynamic 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000187068Member"
      id="t_290_dee579a1_16aa_3093_6d90_c4994d1aba25">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000187068Member"
      id="t_291_dcccae73_5ce3_3537_e2da_08dd87e67836">LPDAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_280_df2db247_1f04_4fd8_ab80_8ce74445dc32">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2060 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000187068Member"
      id="t_281_9bdc6066_793f_416a_bc9f_866dd862c50e">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_282_f1d27900_aba9_42da_a927_52067df2b7d5">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000187068Member"
      id="t_283_e142cf73_7ae8_4e29_998f_07f0f0aaf226">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000187068Member"
      id="t_284_8e60f903_726b_4a97_9179_c9b4b88623e9">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_292_60feb09f_b015_83c2_01fa_bb692f2b2771">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.75&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000187068Member"
      decimals="INF"
      id="h_1024_f602c430_7c32_4e94_bb59_e0386d099fa9"
      unitRef="USD">83</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000187068Member"
      decimals="4"
      id="h_1025_bcc0aa7b_9baa_4cdf_a55b_d3cfa0c3ef8f"
      unitRef="pure">0.0075</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_293_e048bf42_45ef_7b13_8506_751dff98919e">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 20.79%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2060 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_294_4af04b0d_8bf9_d015_935b_59aaf3f05b8d">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: May 31, 2017 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659071.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_295_6f0c5fe7_98f4_0d45_4352_5b2092b4694f">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.79&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.48&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.77&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.44&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.29&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.07&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.55&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;1.75&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2060 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.80&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.21&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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    <oef:AvgAnnlRtrPct
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      id="h_1038_50e846c0_838b_4b93_8c47_740f2542687e"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1039_43538844_402a_4ec3_b9ea_6adf31ba3f84"
      unitRef="pure">0.1080</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1040_7d5f9cd0_bff4_4ca1_a6ae_c157d6071694"
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      id="t_296_e81f8b04_8d61_c574_2d88_02a4fdd05e46">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;167,909,187&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;115,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;20&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000187068Member"
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      id="h_1041_67750f55_308d_40a1_b33d_9ee57a69d158"
      unitRef="USD">167909187</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="h_1042_6ed054ae_3e4d_42a6_938a_2f5285df3dff"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_1043_73fafb8a_322a_4d0b_9666_bd048e336a2a"
      unitRef="USD">115348</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000187068Member"
      decimals="4"
      id="h_1044_614ca385_40c3_4013_b2b9_729b1f815463"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000187068Member"
      id="t_302_bae188f5_46c5_4d13_a345_ef5c6b6b4618">2017-05-31</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_303_ff7c4d2a_f9ef_cae5_509c_88b6aac35406">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2060 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2060 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000187068Member"
      id="t_304_3c7e6376_4fe8_da1b_a138_de72b988bced">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000187068Member"
      id="t_305_e1b92fd4_daa1_cfdc_2c20_9dda90f85aad">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_306_c7008cc7_5ed4_d94c_515e_fb0f4a3d1a56">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_288_7554b26e_25a8_43b6_8742_2a24947332e7">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;91.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1045_d856b6bf_dabb_474c_973f_ef5601badb49"
      unitRef="pure">0.916</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1046_2c852966_728c_4ee2_a0a0_eba1d2bdafc4"
      unitRef="pure">0.112</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1047_b5fc8e4d_0a4c_4c2f_8353_f33ef83c83b1"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1048_6a5fd0ba_07c9_4797_bdd6_c2e810d485e5"
      unitRef="pure">-0.046</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000187068Member"
      id="t_307_8a026bc6_3285_0540_2361_f493b9a63712">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1049_f7ccf305_b14f_4d63_aa06_304c34d6bfb7"
      unitRef="pure">0.490</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1050_b8152f16_5a46_4181_bff2_e08a9a692509"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1051_577bdf74_bead_42fd_9a0b_42e45432112e"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1052_93f4eb07_1094_4534_990a_8c8e20c320d3"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1053_bc7aeb0b_7cbc_4d92_bd90_8b99c171f302"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1054_35c46c32_c656_435e_ac5b_d67c8f0a9827"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1055_309dfa3c_39ee_40c2_96f4_21af9ab4499f"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1056_45beee5a_c0b8_44c1_9b02_1eff3e984214"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1057_af6fc9d7_a273_43a3_af56_fd98c02a2ac0"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187068Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1058_133b7dbe_70d6_4123_b3cd_3c90b974a39b"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000187069Member"
      id="t_298_653e60ee_be87_49d9_fdb5_f0297b1149d7">BlackRock LifePath&#xae; Dynamic 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000187069Member"
      id="t_299_a28a6f52_d8ad_9ba3_38a2_e953ab9f3e6a">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000187069Member"
      id="t_300_662b80ec_d76c_3d9c_cdf8_df0674a0f871">LPDCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_289_3fc815f5_4598_457e_b5c0_614cb4cf748a">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2060 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000187069Member"
      id="t_290_aa4770ff_f19c_4177_ac8e_7c5a14e3b267">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_291_62627d2a_84de_4c84_b132_44ac76bc7e07">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000187069Member"
      id="t_292_b503812f_0049_4b90_ae28_293f8ec6a214">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000187069Member"
      id="t_293_52c8e6d9_a25e_4d22_aa05_b9da674e3b83">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_301_5b8e042d_cc8e_ff80_0190_dcc5835b52a7">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;166&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.51&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000187069Member"
      decimals="INF"
      id="h_1059_30647cfb_64f9_472a_a614_ecb0e0669526"
      unitRef="USD">166</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000187069Member"
      decimals="4"
      id="h_1060_ec4dff35_7422_43a1_bc87_f284e9b0b5b0"
      unitRef="pure">0.0151</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_302_e4eeb6cc_ab84_993f_9c1a_de16e1a2685b">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 19.90%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2060 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_303_39974817_0deb_cecb_2a11_23536da0c527">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: May 31, 2017 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659058.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_304_b64c2c54_ca7a_5aa7_36eb_fe49bd2388fe">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.90&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.65&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.98&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.90&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.65&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.98&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.55&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;1.75&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2060 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.80&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.21&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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    <oef:AvgAnnlRtrPct
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      id="h_1062_35bf2607_25b4_4f61_b380_7f539bbf0599"
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      unitRef="pure">0.0998</oef:AvgAnnlRtrPct>
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      id="t_313_edef1c78_2061_8b60_85ad_cb49471a177f">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
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      id="h_1064_66891dde_0617_44b2_a643_81b057a0e171"
      unitRef="pure">0.1890</oef:AvgAnnlRtrPct>
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      id="h_1066_076b2cf4_f279_4a0d_b996_348cb4ce088f"
      unitRef="pure">0.0998</oef:AvgAnnlRtrPct>
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      id="t_314_02ba9f51_238b_9bf4_ffc0_0320ef745565">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1067_5ae51336_b93d_474a_90ae_68dd613fa3d5"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1068_426d9cd3_9d4e_4122_9c80_9a83f7f153bd"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_1069_3ff36d7c_e773_4fb4_b3ec_87f4c83ab661"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1070_45654a4a_780f_4012_b6f1_c9960365fe91"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
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      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1071_90fac1a2_33ef_44a8_a46b_0b37701b9ac9"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1072_f3645efe_c9c2_4e05_90ed_ca8bfe4f7840"
      unitRef="pure">0.0175</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      id="t_316_a3f3ec32_613a_6930_d22b_6dc061023b47">LifePath Dynamic 2060 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1073_cf569f1b_ca78_4327_8fac_25d3a95a6df7"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1074_c6080102_174b_4e99_a06b_661640126c2c"
      unitRef="pure">0.1080</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1075_cc0e9ec3_e35b_43fe_a34d_84718c1035d5"
      unitRef="pure">0.1121</oef:AvgAnnlRtrPct>
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&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;167,909,187&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;115,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;20&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000187069Member"
      decimals="INF"
      id="h_1076_82b5ab83_d115_4a4c_8885_e4f4c100d299"
      unitRef="USD">167909187</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000187069Member"
      decimals="INF"
      id="h_1077_991701d9_1301_413b_9a39_9bf7df5234f9"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000187069Member"
      decimals="INF"
      id="h_1078_09975612_43af_45ab_b622_42da66d887a6"
      unitRef="USD">115348</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000187069Member"
      decimals="4"
      id="h_1079_8e3b11ef_4d2a_4227_b094_77894c6e5337"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000187069Member"
      id="t_306_bf02b381_6997_5bb9_3005_72dac350ef59">2017-05-31</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_307_ea4a6864_b6aa_3dfb_09bf_98df58b5cd1f">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2060 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2060 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000187069Member"
      id="t_308_98a666c1_4e6c_466e_af33_aaf9b1c8028d">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_309_00732858_03f6_cd08_08bf_ad17e956752b">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_310_3083a9f6_54c3_a0f1_b631_9bbe8a996ad9">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_297_fb465983_5141_4ae5_b4ad_139aa2303a99">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;91.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1080_e76c9fad_d40e_465e_9545_fb76e3b3c27b"
      unitRef="pure">0.916</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1081_45d73391_cb6c_41ff_afcc_c15040d4420a"
      unitRef="pure">0.112</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1082_e03d001a_7e00_404f_aac3_10098e344eab"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1083_bb460fb6_2a37_489c_a64b_2d41c970dc4a"
      unitRef="pure">-0.046</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000187069Member"
      id="t_311_458627dc_5c69_1e7b_4c7c_f3575d5649c5">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1084_927d28f3_5393_4da0_97c1_dfa83aef5aeb"
      unitRef="pure">0.490</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1085_2959ddf5_612f_4e8d_8085_8b0c44cfc12d"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1086_b5410353_10ca_423e_99a0_b94bd428e0cc"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1087_3eb8422e_c6e2_46ae_b179_0f066026cd9e"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1088_b55a5843_8210_4186_83b4_177f339df2f7"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1089_9c9360fc_9970_4b73_aee4_44658fcd9f16"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1090_7bd70071_3734_4cc2_a2ed_4e196ed5d0a5"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1091_4afbaeed_9a88_4dde_8cb8_e17669cdfe7f"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1092_338cb350_6429_410d_97ba_1820008eaadb"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187069Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1093_17784d7f_b8f8_4837_ab05_f88195a3196c"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000187072Member"
      id="t_307_2f19ccd1_6011_d362_54bd_457d147a6ab5">BlackRock LifePath&#xae; Dynamic 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000187072Member"
      id="t_308_172f1705_5c6e_1684_9ef5_c47acbeaadf4">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000187072Member"
      id="t_309_257ebd34_e3b0_8292_8194_827cf26e7c9a">LPDKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_298_1a1dd571_f143_48df_85b9_c63b2b6b5d72">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2060 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000187072Member"
      id="t_299_a6103b47_c2a4_4cd3_ba6c_4f284e232e2e">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_300_27c483dc_5bf0_43e1_a62e_25c18824f6fa">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000187072Member"
      id="t_301_96d8b5da_697e_4b0d_9bf9_500e5e89c11c">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000187072Member"
      id="t_302_d02f81bf_2fa1_4f89_bb60_1ed317d9d274">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_310_5c7e5082_e716_97b1_888c_b6d7bb68ac0a">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;28&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.25&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000187072Member"
      decimals="INF"
      id="h_1094_4ef04c11_ca98_4134_ab7d_5d8246e4765f"
      unitRef="USD">28</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000187072Member"
      decimals="4"
      id="h_1095_671d5aac_f9ce_4e86_8f07_fc80b99a6d04"
      unitRef="pure">0.0025</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_311_fb7d12a2_620d_7082_4f78_bb98f714844b">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 21.41%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2060 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_312_0ad9726f_741e_90b9_bac2_c52c2bbaf576">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: May 31, 2017 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6659005.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_317_9d9ee143_c1c0_28c9_805f_adbfe7803544">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.41&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.02&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.30&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.55&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;1.75&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2060 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.80&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.21&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000187072Member"
      id="t_313_1668e4ec_448a_a320_dd93_9cda191cd518">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000187072Member"
      decimals="4"
      id="h_1096_997c0aef_6da3_427a_9d7a_1df19d765895"
      unitRef="pure">0.2141</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000187072Member"
      decimals="4"
      id="h_1097_b2de4f1c_9a74_414d_a3dd_067d4e4e2a1d"
      unitRef="pure">0.1102</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_314_122c3bba_4320_985f_3f0c_8132c757fe2f">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      decimals="4"
      id="h_1099_d538f96f_5a82_4b90_9d96_1d6f93271e65"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
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      id="h_1100_dbfc16f6_f6f3_4cf1_a5d4_c346e6358b7d"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1101_eed8fefe_de10_4328_852b_b8cfbdbe3c24"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_315_713745d8_1173_c79f_aaa2_52fea3536375">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1102_b1232ba5_19ce_467d_998b_39252e03fc1c"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1103_ab75053e_da22_4219_bccf_a394759410b2"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1104_b80cbd87_d134_431f_acbd_fa916aad0246"
      unitRef="pure">0.0175</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      id="t_316_112091cd_8c68_e52d_608b_a3e1b16f9513">LifePath Dynamic 2060 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1105_cad08bb7_8df8_4901_9148_e72240d03799"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1106_94a3d06f_b896_4da6_855d_39da35a7ad42"
      unitRef="pure">0.1080</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1107_768af4f2_267c_40b1_b901_d26b758797f7"
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    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_318_f38198cf_ace8_5cd0_1e70_acb59eec1d4a">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;167,909,187&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;115,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;20&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000187072Member"
      decimals="INF"
      id="h_1108_ca3c6030_a1a9_4dea_aeae_b18748335920"
      unitRef="USD">167909187</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000187072Member"
      decimals="INF"
      id="h_1109_10c32104_76e1_4129_b58f_72a116f356a0"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000187072Member"
      decimals="INF"
      id="h_1110_ee9ad9eb_6819_4494_8873_9733d26bac02"
      unitRef="USD">115348</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000187072Member"
      decimals="4"
      id="h_1111_050b4cc0_d2f6_4d6b_aed2_cc005216b464"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000187072Member"
      id="t_319_3d30d4fc_896c_153c_ebfb_6eb17132fdde">2017-05-31</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_320_e4d9f4ee_5276_0d6c_144b_78e7a3367589">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2060 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2060 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000187072Member"
      id="t_321_1c2bf266_3ad4_c6c1_3657_51dce0ac9b5f">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_322_5e6b94fc_09aa_2dbe_43aa_5663c84b022b">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_323_454e7fca_bc82_d02f_8444_75f399cd8a45">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_324_aa0cd195_3027_0e58_5a4e_edb1719823ff">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;91.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1112_96a718b1_41b8_4f80_a608_ab11e1e7a595"
      unitRef="pure">0.916</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1113_216c1007_d630_4eee_9d2c_c633af27a3e7"
      unitRef="pure">0.112</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1114_e81b3bea_106f_4747_9223_8887b6ffad97"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1115_d6d6593d_244f_4848_bf73_2032d3e8eb55"
      unitRef="pure">-0.046</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000187072Member"
      id="t_325_49c7f179_ac91_d927_7f78_9ced6ae6c4c4">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1116_636a0a96_b901_475f_8e46_4d5bfd930568"
      unitRef="pure">0.490</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1117_21c0638d_d65a_43ec_81a9_8cae727aff59"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1118_49e96163_f549_4db3_aea2_c5928946f011"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1119_e65f311e_9ce9_429c_8e25_c21380235bdb"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1120_951ca60e_8cca_497f_bd25_7b7e93308650"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1121_c18ec8b7_0aa0_41d5_bc01_ed655ffb0765"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1122_c2f6b281_9399_47d8_86ea_ae1f22bcb0f6"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1123_00ba3a7e_a9b8_4d5b_9041_cee648f30270"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1124_abd8e114_fb5d_4217_8323_ad6494c51c65"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187072Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1125_4efbc521_95e9_461d_8cdb_067fae50f58c"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000187071Member"
      id="t_320_721dfb40_9db3_3381_5b32_0c880ae035b6">BlackRock LifePath&#xae; Dynamic 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000187071Member"
      id="t_321_acf85d22_b8fd_fdee_3ffc_4bcc812c60c7">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000187071Member"
      id="t_322_b01508e9_20e1_9291_c33d_f15150073073">LPDRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_307_39de9f52_50f2_4393_b683_d2bec1b5c2bd">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2060 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000187071Member"
      id="t_308_0f23ec7a_7489_49ad_94a9_717f12b66974">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_309_54f1761f_47f6_4278_8ce1_22feb1859e7b">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000187071Member"
      id="t_310_bbf0902c_03f8_4f19_803a_1b20d41c1374">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000187071Member"
      id="t_311_c198f12c_bafa_4674_94ca_eb843addc631">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_323_7df648a6_9076_8c96_7f1d_2535acc4200c">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;105&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000187071Member"
      decimals="INF"
      id="h_1126_832a65ca_1b5c_4eba_9061_4ff7daaff823"
      unitRef="USD">105</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000187071Member"
      decimals="4"
      id="h_1127_920d7dc8_9ffe_404c_9812_cb58d5ee8ee1"
      unitRef="pure">0.0095</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_324_052cb88a_4abd_f8b5_deec_8dc1121d85fa">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 20.53%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2060 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_325_d2094116_ca8b_3f47_dc5c_5451e985b594">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: May 31, 2017 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658992.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_326_b1d81898_0b8b_431c_af54_6f000316027e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.53&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.25&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.54&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.55&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;1.75&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2060 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.80&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.21&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_316_92dd925c_a28b_6726_ea51_30ec016a68c8">Class R Shares</oef:LineGraphAndTableMeasureName>
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      id="h_1128_c4bfa3d3_f989_4063_9e91_d29a8a491f54"
      unitRef="pure">0.2053</oef:AvgAnnlRtrPct>
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      id="h_1129_4bd2d072_e9a3_40c6_b527_e02fb9574c71"
      unitRef="pure">0.1025</oef:AvgAnnlRtrPct>
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      id="h_1130_16b8e49a_e008_4fa4_9b48_8ec9a22acd3f"
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      id="t_317_a14191f1_af0f_4874_1e76_db871ecbb6da">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1131_a6fca4e2_c622_4888_9b73_97d754631428"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1132_e426ac4d_dea7_48b2_a1f9_245888295e04"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_1133_7aa65325_968b_4332_ad20_8005b63d109c"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_318_0008b83f_e690_1b4a_c74c_01bbc8497a22">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1134_34d92ab6_3c33_4634_b68b_7fe6ffbb4abc"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1135_b93b85a2_c6ec_46b1_af6a_c62d5dd12f0e"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1136_6d672a90_d7cb_4ffa_bc44_17257832dc3a"
      unitRef="pure">0.0175</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      id="t_319_034f198f_e9f0_630c_f7d3_34cdfa17e594">LifePath Dynamic 2060 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1137_bd24294c_5034_403f_929a_d152f4f39c21"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1138_131fc4df_3292_4f4f_9f9f_b25cb9cf288f"
      unitRef="pure">0.1080</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20170531_20251231_LifePathDynamic2060FundCustomBenchmarkMember"
      decimals="4"
      id="h_1139_a5d83fce_b246_4c8f_b3b9_ff5312fbb514"
      unitRef="pure">0.1121</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_327_bdfde81d_04e4_6073_c708_9037f1c5239d">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;167,909,187&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;33&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;115,348&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;20&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000187071Member"
      decimals="INF"
      id="h_1140_d31e00bd_a0be_4d30_ba9b_84493426954f"
      unitRef="USD">167909187</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000187071Member"
      decimals="INF"
      id="h_1141_3513fa8c_9844_4e60_bff3_96829c39ee26"
      unitRef="Holding">33</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000187071Member"
      decimals="INF"
      id="h_1142_98d7ba6c_35db_4e3f_9d13_28d220151479"
      unitRef="USD">115348</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000187071Member"
      decimals="4"
      id="h_1143_a2ed127f_13de_421f_b177_12302d446c7b"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000187071Member"
      id="t_328_3b4fcf11_3ab8_9afb_f23c_f06e66883624">2017-05-31</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_332_efee6f97_3958_5d30_3486_c96c83ab50da">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2060 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2060 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000187071Member"
      id="t_329_65df3ca9_ad6d_efd2_6ab3_00d9ef1c632d">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_330_fc065105_b22c_1745_3e62_3f68d7026db9">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_331_089aafc8_43ea_5333_a339_94cddb4510af">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_333_003ba1c4_24f9_9cb6_74f0_0dad3790004e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;91.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.2&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(4.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1144_4ae80a43_9355_4cb6_9ae9_8bdb7f784d76"
      unitRef="pure">0.916</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1145_37400f05_8c50_46d2_bf49_8f4564463dd3"
      unitRef="pure">0.112</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1146_1e78bb9c_be71_4855_90ff_604528cee6bd"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1147_71cd158f_2782_4dfe_a93d_f0163e865eed"
      unitRef="pure">-0.046</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000187071Member"
      id="t_334_b59f6e50_a9dc_bd76_f37c_58e9c864842a">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;49.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;10.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1148_48c2618c_c262_4f61_b1d2_2463c340c6ee"
      unitRef="pure">0.490</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1149_718b7359_45cb_4b9e_bbcf_6f31910060d1"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1150_88463d81_a12c_40a5_9df6_044febd410df"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1151_8607aacf_2de0_4d77_9aab_3850d97f096b"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1152_73a2a780_59f9_495d_b2c4_3bdc515ad230"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1153_593a7d58_71fe_4b42_b21e_541ec5faf293"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1154_d126aa3a_31a5_4611_9428_73df0fb8f6f1"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1155_5b2e9a27_7544_4342_8279_a8e501eac896"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1156_06e80546_c46e_4acf_8cf3_ae7b5ba47a14"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000187071Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1157_8ea9e65e_1310_40f0_b63c_0b527ca02072"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000213846Member"
      id="t_325_c1da2b49_eb8b_e207_097c_211cff603899">BlackRock LifePath&#xae; Dynamic 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000213846Member"
      id="t_326_571ab18a_2c26_adb8_fd23_87354739aead">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000213846Member"
      id="t_327_5e2b2bba_b39e_5a94_ada8_285229be0e37">LPWIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_316_2b16751d_18cf_4822_98b9_3e1470edc46b">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2065 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000213846Member"
      id="t_317_9a6c78a3_c2fb_4372_ab1c_e94048f0b1fd">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_318_a2a84ee0_e555_4517_8b7f_b815b04cc6d4">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000213846Member"
      id="t_319_db02c52f_2aed_4d18_a15f_341f65fcfe53">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000213846Member"
      id="t_320_afd74354_d82d_4905_9b56_a8a13e3ec33c">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_328_9824f60c_5e0a_43bd_b325_a4532635a12f">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;55&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.50&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000213846Member"
      decimals="INF"
      id="h_1158_7cf0c0e5_40ff_4b64_ae3e_63ba86bd76b1"
      unitRef="USD">55</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000213846Member"
      decimals="4"
      id="h_1159_7669d35e_90cd_4668_b40f_18fae5c2c168"
      unitRef="pure">0.0050</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_329_30099a89_4e21_8650_c7ab_01112b86d61c">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 21.02%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2065 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_330_0c55e821_c988_4d8d_8a8c_eaafbc805593">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: October 30, 2019 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658939.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_331_37e5d76e_184f_3cab_1e64_05f7ed0d6467">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.02&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.73&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.88&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.52&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2065 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.79&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="h_1165_147c0246_da5b_4f63_ba3b_8ac22761584a"
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      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="t_343_9ccf887f_e280_5388_cc0c_3ff121b70ab9">LifePath Dynamic 2065 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1170_26b59cbf_e5d1_4688_b864_89d6f1ca1b54"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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    <oef:AddlFundStatisticsTextBlock
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      id="t_337_d82d77a9_c0a7_b0ae_1ab1_c738809750bd">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83,509,512&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;54,038&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
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      id="h_1172_b6bc64b3_233b_4c93_8897_e2972296132b"
      unitRef="USD">83509512</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000213846Member"
      decimals="INF"
      id="h_1173_6668dbf7_b76f_4096_a8b6_8dfc9acaade3"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000213846Member"
      decimals="INF"
      id="h_1174_4bd64e59_520e_4ae8_a16d_a2a88acc4329"
      unitRef="USD">54038</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000213846Member"
      decimals="4"
      id="h_1175_ee225baf_11f0_408e_b89a_7249e5743247"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000213846Member"
      id="t_332_8eeac1e8_3a60_6158_9860_0dbb768c8db0">2019-10-30</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_333_6e16fdcc_15d0_4a1c_8ff8_9818d8029c2a">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2065 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2065 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000213846Member"
      id="t_334_144268c3_f1c5_5a19_9bdf_9b28e85d69b0">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_335_9a9eb50b_b42b_0716_b916_b994e6ade40e">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_336_3bb349c5_eaa6_a9ad_1659_35743c72588c">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_324_87b960b1_b3dc_4e39_ad91_0c504080d241">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;87.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1176_d7b93c91_ceb3_4bf6_8a4e_7aeaaae8b270"
      unitRef="pure">0.874</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1177_018987cb_f15a_4cbe_ab77_0663f453c19a"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1178_8b010c15_2af9_4bb1_9c91_aa6a4b874e4c"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1179_6102615b_8f16_4472_8eda_654aa7fc93e1"
      unitRef="pure">-0.038</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000213846Member"
      id="t_338_a2568134_1336_3fa5_5760_ce424830f474">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1180_870a8503_174b_42d3_a526_0ce7712a1086"
      unitRef="pure">0.465</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1181_9ba9151f_a50d_4f8b_bfab_cccc1c2f788a"
      unitRef="pure">0.140</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1182_82411760_bcd9_48ed_89c5_cc85cddc2479"
      unitRef="pure">0.097</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1183_f3ce02d3_4a3e_48c5_935d_69bb78d3f79c"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1184_cb64c2b5_4e74_42a7_bcf5_0701c1d7e5b8"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1185_d343f07c_da3e_4a71_8f89_18c19e6b9ab7"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1186_04836d8e_b42b_4f21_95e9_06a8b21594eb"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1187_526eda13_66b8_4eaf_bd2a_483db9f97367"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1188_9e76875b_f3ab_4ae6_bc93_c967e96311f8"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213846Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1189_610a818b_36e6_4bb9_a304_abb53b19f54b"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000213845Member"
      id="t_334_fa6801e2_e952_9217_20de_092d95e819c7">BlackRock LifePath&#xae; Dynamic 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000213845Member"
      id="t_335_7404a4a2_1ce2_497c_9548_5d05d8ee0bbd">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000213845Member"
      id="t_336_0f1bf0e9_1874_51f6_a838_54c14d4a5972">LPWAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_325_1d0beae9_3c86_492b_8c14_7bec2009177a">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2065 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000213845Member"
      id="t_326_484ff469_5384_4531_b6af_420f035a668d">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_327_0cec926f_63f0_4e86_8609_c3529006952a">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000213845Member"
      id="t_328_75ed36bf_c7dd_47c2_92d1_2a64377b37b0">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000213845Member"
      id="t_329_38ed5a7b_e745_49a0_9992_575d9f40bb4a">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_337_78359407_16fb_808a_a4a5_7638820624a6">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.75&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000213845Member"
      decimals="INF"
      id="h_1190_c0323c56_8cd9_4ea5_8e3d_554c243ee996"
      unitRef="USD">83</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000213845Member"
      decimals="4"
      id="h_1191_f3e5ace3_88cd_4e6b_9431_b8f76bde31f8"
      unitRef="pure">0.0075</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_338_fa1cc8bb_7d66_2901_68b6_2277a6c84ee1">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 20.66%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2065 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_339_00407c2b_e1ba_0a85_8843_af506b4649d1">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: October 30, 2019 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658926.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_340_1b0b0fcb_69e0_551c_cf48_9da293efed45">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.66&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.45&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.32&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.26&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.62&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.52&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2065 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.79&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
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&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      decimals="4"
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      id="t_346_5f938e2e_d682_8d49_556b_94bb80d450a4">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83,509,512&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;54,038&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000213845Member"
      decimals="INF"
      id="h_1207_34a36958_2775_417c_a432_b2624c0f69de"
      unitRef="USD">83509512</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="h_1208_d08d9dce_d3c4_4bd1_8577_3b8c3a89d1af"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      id="h_1209_2ededf4c_4d4b_42e5_96ae_1ce65aaec614"
      unitRef="USD">54038</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000213845Member"
      decimals="4"
      id="h_1210_db214a32_e0b6_4b75_8d10_919b1ec6cf1c"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000213845Member"
      id="t_341_f4771b68_20f2_ac61_404e_fe44eb386aef">2019-10-30</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_342_657cb530_eb3b_8ed4_9752_cd1d33627771">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2065 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2065 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000213845Member"
      id="t_343_73b93527_f4cd_6edf_8ca2_0cf4fe236ad0">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000213845Member"
      id="t_344_500734d1_3341_8b43_3549_4fd6c2ac5e36">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_345_313378aa_9721_f7d6_aaae_6182d1183396">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_333_0d21b9f4_1181_474a_b766_ae9f99b0b409">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;87.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1211_65dbaca7_e66c_4e91_bfdd_cbea802541ef"
      unitRef="pure">0.874</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1212_2eaaa6c7_71d1_4cf5_812e_1103f6e3fac0"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1213_bbc5d069_c0cc_4cfc_b9e8_461fa67306e4"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1214_2431d8b6_f298_4537_ba59_27b367d84ae3"
      unitRef="pure">-0.038</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000213845Member"
      id="t_347_2b8a4635_be8c_64b7_5201_aca54b0b9275">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1215_fcc42595_f480_475a_8de5_b63b2adba183"
      unitRef="pure">0.465</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1216_e199ec46_6dad_482b_9503_c2a7f21b5e35"
      unitRef="pure">0.140</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1217_ce889095_df09_48ac_a57b_f4f603e64b87"
      unitRef="pure">0.097</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1218_b3f73a19_feb2_4e92_a26c_72182232bad6"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1219_d2aca3a1_2fae_40aa_acad_0b069064cb2b"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1220_8f513aaa_5753_46d3_b2fc_381600a91417"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1221_63f49ba8_7f8e_4b5b_b0d6_579d28d0ffa2"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1222_55ecaec0_05ad_4e3e_bc4e_d1ec28683c28"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1223_8740d3fd_52d7_412d_b761_5d90fbbcf9d6"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213845Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1224_1584ba16_382f_4da5_93bd_9c1edef470ff"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000213843Member"
      id="t_343_69e88287_9834_639e_928e_32505a440810">BlackRock LifePath&#xae; Dynamic 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000213843Member"
      id="t_344_cc9efe0a_b8b5_dd41_9022_05f4ebb1508d">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000213843Member"
      id="t_345_a2e09e82_d980_945b_36b5_b273036bb718">LPWCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_334_c5aaa442_012d_4f69_a049_31c954d4fd8c">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2065 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000213843Member"
      id="t_335_6512dcb5_e946_45b9_b747_3ca94c091378">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_336_274884e8_747c_47df_adcb_cbbc3ee67507">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000213843Member"
      id="t_337_0f496801_3457_445e_9863_0bb8f78a9124">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000213843Member"
      id="t_338_174e1f37_1154_4e0e_ad07_383423b83099">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_346_5c02573e_5e1b_2c25_6a9a_7b84f3ea0af1">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;166&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.51&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000213843Member"
      decimals="INF"
      id="h_1225_1dc7d016_b704_4a68_ab24_be484af0635a"
      unitRef="USD">166</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000213843Member"
      decimals="4"
      id="h_1226_70e61fca_a7ec_484b_a62f_d445f33d68ad"
      unitRef="pure">0.0151</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_347_02b41c19_5748_ac5c_b145_63fd0ced8232">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 19.76%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2065 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_348_707d2498_2ce3_2133_e069_0142d564aca8">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: October 30, 2019 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658873.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_349_685724a5_6caa_a3d8_ded5_7938a41da09f">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.63&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.76&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.76&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.63&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.76&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.52&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2065 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.79&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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    <oef:AvgAnnlRtrPct
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      id="h_1230_22dd2048_534f_4396_8196_ce3ed3efc88f"
      unitRef="pure">0.1876</oef:AvgAnnlRtrPct>
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    <oef:AvgAnnlRtrPct
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      id="h_1232_641ca343_8cb7_4ac8_aeb1_e5741cec0f44"
      unitRef="pure">0.1076</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_359_75ddb8af_5aae_55ba_db28_520cbbff9d2b">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_1233_d29ceb7b_5f72_4af9_bb8d_bb62efe3ee02"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1234_73c16520_f6a0_4535_882f_c2027a29fb79"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20191030_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_1235_64de5906_1750_43eb_8aa2_a3055f3c30ff"
      unitRef="pure">0.1552</oef:AvgAnnlRtrPct>
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      id="t_360_50b60793_5b51_83bf_4d3a_2a759d97f50c">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1236_417bc216_fdf7_4548_a349_bcf410299b9b"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1237_218e100b_59c2_4c66_9b6a_cdf6e7848cd4"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
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      unitRef="pure">0.0095</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2065FundCustomBenchmarkMember"
      id="t_361_4da98891_2a57_a928_01e4_e514fd15ee61">LifePath Dynamic 2065 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1239_0fb80939_b430_44ca_909c_4e1e7edfed4e"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2065FundCustomBenchmarkMember"
      decimals="4"
      id="h_1240_34d47c9c_ae90_482b_9485_75adeffb4946"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20191030_20251231_LifePathDynamic2065FundCustomBenchmarkMember"
      decimals="4"
      id="h_1241_08dd2f20_f48a_460f_9eb5_bfde51cc3b28"
      unitRef="pure">0.1219</oef:AvgAnnlRtrPct>
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&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83,509,512&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;54,038&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000213843Member"
      decimals="INF"
      id="h_1242_4a333d4c_2f00_4a67_affa_42205da76356"
      unitRef="USD">83509512</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000213843Member"
      decimals="INF"
      id="h_1243_76af7611_be6d_408b_bcb7_c5e34ea879f6"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000213843Member"
      decimals="INF"
      id="h_1244_a9f0972d_da0c_4e5a_a198_69a4244fbe9a"
      unitRef="USD">54038</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000213843Member"
      decimals="4"
      id="h_1245_f2cda38a_15dd_46a6_867f_e40f4cc2dcdc"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000213843Member"
      id="t_350_5930b779_c1f6_3862_61e5_9592b49d8a97">2019-10-30</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_351_28d94d5a_c6a1_eb11_552c_b11afd046f93">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2065 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2065 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000213843Member"
      id="t_352_9ee10e0c_af7f_b207_e0b8_e5692692e1d2">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_353_1778923f_ee55_15cf_7a3e_61ddc287e6fe">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_354_1cad1754_2799_5b78_561e_bc101d20305a">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_342_4ae70655_fed6_48a8_a2d3_83eb5cfe3f09">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;87.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1246_55dcce47_782f_45db_8f3a_a9ed55c72473"
      unitRef="pure">0.874</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1247_f647e056_eb56_434a_a110_bcc2ee51536a"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1248_f95193e9_7303_472d_9e5b_f848e49fe778"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1249_db348508_e2c6_44ad_8566_16b5f5b392ed"
      unitRef="pure">-0.038</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000213843Member"
      id="t_356_ff91e2ff_3c85_5fea_e652_d58b38806dc1">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1250_3f0062f5_0e70_4a94_bfb8_296b29766ece"
      unitRef="pure">0.465</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1251_58b66a61_f239_4d83_b984_b7bcda87cf37"
      unitRef="pure">0.140</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1252_c6f8fe51_1936_4b75_aa40_ad7c9674e4a2"
      unitRef="pure">0.097</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1253_b7a53343_bd7b_4f69_a1fd_4445c5ea3291"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1254_c9947965_5f4f_418f_927f_2038521debe4"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1255_f188e1e5_0088_4f8f_bd9c_024579566277"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1256_7f643e04_fde1_43f2_85ad_d1e687f8e580"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1257_1f2c7982_3620_4fdc_bdcc_c92329d39075"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1258_6d5cdf62_e70c_44a8_9687_ce0f7734a00a"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213843Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1259_36549e5b_1f4d_40f8_a55b_4206af115b01"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000213844Member"
      id="t_352_519c5fd1_7d39_d63b_f70a_b213616f97ec">BlackRock LifePath&#xae; Dynamic 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000213844Member"
      id="t_353_e20f4fb7_57d7_7c1b_6dcf_ace18534496c">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000213844Member"
      id="t_354_35cf93b5_bcc4_8e2b_fc78_a233ac70df4d">LPWKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_343_83d6da1a_e6cb_4703_aa71_4704cc3f922b">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2065 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000213844Member"
      id="t_344_740267c4_1e23_4656_908f_02fa86332a73">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_345_0c1b1374_da7c_412e_b743_a44622495afc">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000213844Member"
      id="t_346_8c875f3d_8f42_4281_954b_06be93306f73">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000213844Member"
      id="t_347_9290280a_7a3d_42b2_b89c_a4c8d74330ab">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_355_e4e6f497_8b56_6442_a901_dd6b0ebad6ff">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;28&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.25&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000213844Member"
      decimals="INF"
      id="h_1260_a918eff0_1eaf_44d4_aa45_b5df23eb2246"
      unitRef="USD">28</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000213844Member"
      decimals="4"
      id="h_1261_9fd69446_4515_4100_a82a_c8c69f0c7669"
      unitRef="pure">0.0025</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_356_96df24b8_f6f9_97ae_e451_978e4f55867c">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 21.39%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2065 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_357_53c3a096_e6b3_c4f7_2caa_4012b9c93743">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: October 30, 2019 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658860.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_369_0b3ea5da_f66a_ea04_67fe_479ad6c0214e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.39&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.01&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.15&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.52&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2065 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.79&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000213844Member"
      id="t_364_28f03ee0_34d7_8ef2_1b91_b51537d82f1e">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000213844Member"
      decimals="4"
      id="h_1262_9832b6df_d7f4_4da1_92d9_a37d13ec62f7"
      unitRef="pure">0.2139</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000213844Member"
      decimals="4"
      id="h_1263_d19accc0_7cd5_4216_b71e_6f59d1d5a322"
      unitRef="pure">0.1101</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1264_048111b8_7752_42dc_84d4_727bc223d6ae"
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_365_4936e5f7_6a70_9ff9_cb93_9888b664c897">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
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      decimals="4"
      id="h_1265_6d000960_c2a6_4b22_b5a7_91b3cd1a52a9"
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      decimals="4"
      id="h_1266_1788cf32_7e2b_44ae_a456_ad584a0713b9"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1267_b5491451_6e4f_40fb_bc0e_dcb1a97d57ac"
      unitRef="pure">0.1552</oef:AvgAnnlRtrPct>
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      id="t_366_d98e5b6d_6ee1_6e31_4600_d8a59add2114">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1292_86cbebaf_4237_3da2_8e1f_47c3374e1acc"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1269_6fb378be_d95f_4a1c_993a_e93f919d70c9"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1270_48ae9a3e_833f_4dff_aa57_4acc4a4ee385"
      unitRef="pure">0.0095</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2065FundCustomBenchmarkMember"
      id="t_367_352b3c9d_7469_b455_5d13_65cb616365d7">LifePath Dynamic 2065 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2065FundCustomBenchmarkMember"
      decimals="4"
      id="h_1271_eca7f1e5_1d52_4786_83c9_e497bd309b1c"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1272_d68f7fae_a066_45ee_9d1c_3fd6e5bdcb57"
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    <oef:AvgAnnlRtrPct
      contextRef="D20191030_20251231_LifePathDynamic2065FundCustomBenchmarkMember"
      decimals="4"
      id="h_1273_dabfe528_458c_4adb_ad8d_46fdd658cc1a"
      unitRef="pure">0.1219</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_C000213844Member"
      id="t_358_b2ccaeb5_0e5b_492a_e5e5_3454b7a5121c">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83,509,512&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;54,038&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000213844Member"
      decimals="INF"
      id="h_1274_a90aa993_0554_4ec8_ba27_556db13f0f5f"
      unitRef="USD">83509512</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000213844Member"
      decimals="INF"
      id="h_1275_2e71f3b6_3cd4_4a8e_ae4e_b798e906100c"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000213844Member"
      decimals="INF"
      id="h_1276_3a4c4b2b_6101_4be0_bf45_1436c1ae3879"
      unitRef="USD">54038</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000213844Member"
      decimals="4"
      id="h_1277_23ab1cb2_67a2_4ea9_84d9_cbae1627cd2f"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000213844Member"
      id="t_368_8d0ee55d_324a_a748_8729_4698a5b46dc3">2019-10-30</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_362_4a6051e2_38d6_5dd0_12e7_a3859fbefc27">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2065 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2065 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000213844Member"
      id="t_359_4bb32197_6c6e_c657_e6b0_aa716d7a59d0">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_360_186cc566_2b93_34c6_b0a5_1c0eb1bab519">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_361_7cee8631_d758_2d39_eaa4_fe445ee7557e">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_351_9bc6fc5a_2d84_4ef5_9386_b28ae722ec66">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;87.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1278_8a8fbca4_0dc5_4ea1_b369_42f315d34e3d"
      unitRef="pure">0.874</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1279_079c54ea_f422_4da3_b7fc_5385289eb3b2"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1280_93898822_7eae_4d6f_91a6_18b7abb38b0d"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1281_658b35b9_4d5b_45bc_9eb8_690c73d40d48"
      unitRef="pure">-0.038</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000213844Member"
      id="t_363_016811d2_f270_28fd_20c0_649b40439254">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1282_67293bb9_1068_497f_a326_7f232a4226bf"
      unitRef="pure">0.465</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1283_15a5f156_70fb_41fe_a3b7_d27f2591a4ba"
      unitRef="pure">0.140</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1284_adaa69a4_4494_47fe_8d43_88c6b91cf99e"
      unitRef="pure">0.097</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1285_a36d052f_73f6_4a6d_816a_ea7e28f8a65d"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1286_0aae36dc_f948_4323_aef1_20485f63649e"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1287_c8642ed7_d3e7_4b9e_85d2_2aa69069c4ec"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1288_525d2661_8be0_4a2d_a839_6541959e9654"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1289_0fc09eef_6616_46e4_bdb1_3555c8be56e1"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1290_197353a9_cc90_43c0_87f0_4ba07ad0945c"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213844Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1291_fd203fec_f73a_4f35_9dc9_34c0f5a3b930"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000213847Member"
      id="t_361_cb396f99_034a_293b_2a9e_4e9ad3b81c58">BlackRock LifePath&#xae; Dynamic 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000213847Member"
      id="t_362_46509e0b_5e0d_1de7_6842_b8c3428e223d">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000213847Member"
      id="t_363_732a37fb_2cdb_c867_8e24_f70b7f10c458">LPWRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_352_3518a009_9829_4421_a0de_ad1c5b684eb1">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2065 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000213847Member"
      id="t_353_3cf80ca3_ec1e_42b5_8842_1ab3fe6e546c">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_354_5951fe9c_97ef_4e57_93e1_ca6d389920a5">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000213847Member"
      id="t_355_3a04d729_56d9_4ebd_aa0a_479374ef8970">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000213847Member"
      id="t_356_d8b81f1f_d486_4ee5_935f_5c17f2af1f8a">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_364_d40bd84e_cc74_7424_83b8_fd8c1b3dda86">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;105&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000213847Member"
      decimals="INF"
      id="h_1292_ba9896c4_c83c_45bd_ac43_a5d04ebd1c51"
      unitRef="USD">105</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000213847Member"
      decimals="4"
      id="h_1293_57296dd6_ae28_4562_9321_e1c0f4be8865"
      unitRef="pure">0.0095</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_365_e6cdb692_6369_0450_ffba_8af045d85e43">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 20.44%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2065 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_366_97c3283b_854c_99e5_9655_e353a1f5d9f3">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: October 30, 2019 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658807.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_367_e01c4653_eeee_772e_13c3_b1b98f15b5ad">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.44&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.23&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.37&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;15.52&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2065 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.79&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.19&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="h_1297_f7c53b3c_70e3_404b_8a1d_46c786b2bdd3"
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      id="h_1298_07f3a625_ba1e_403c_b529_873b20b37be5"
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      id="h_1299_31051410_ece0_4812_8d2e_5a6565125eff"
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      id="t_377_4611db3a_419a_542f_6845_e192025415b2">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
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      decimals="4"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1301_d5736004_0d70_4a7d_8981_dd16d9c66bb2"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20191030_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
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      unitRef="pure">0.0095</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2065FundCustomBenchmarkMember"
      id="t_378_962cd600_19de_0b41_f4d9_618654b37641">LifePath Dynamic 2065 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2065FundCustomBenchmarkMember"
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      id="h_1303_43fa495d_81d6_4ee7_afd9_e73624845a26"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamic2065FundCustomBenchmarkMember"
      decimals="4"
      id="h_1304_5a1487a7_8748_4f20_98a5_da0968ecbaa0"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
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    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_370_8e9e6e75_d4e9_a298_b5e1_184d18a99cd3">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83,509,512&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;54,038&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;21&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000213847Member"
      decimals="INF"
      id="h_1306_535072b7_6bca_483f_83ac_079e9c8025fb"
      unitRef="USD">83509512</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000213847Member"
      decimals="INF"
      id="h_1307_84222cac_f6a1_449c_9bf8_fd35e778945b"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000213847Member"
      decimals="INF"
      id="h_1308_2b1c1c9c_9188_4d6e_8b1c_32c317061c01"
      unitRef="USD">54038</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000213847Member"
      decimals="4"
      id="h_1309_a5257fc7_dd63_4136_8796_eb703f90aae8"
      unitRef="pure">0.21</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000213847Member"
      id="t_369_78bd9825_4e33_ba99_777e_52bdc4a9485b">2019-10-30</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_371_6e7dd7c4_71dc_63b6_321d_46392e828b24">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2065 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2065 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      id="t_372_0d8d397e_4b7b_18b6_b0e2_2f9cbb82e60b">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000213847Member"
      id="t_373_da700105_8fc0_d285_7648_13d8bfa47ed2">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_374_53faa16b_ad85_4b39_33cd_22c9c45cd11c">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_360_9611709d_15fe_4fcb_bd0e_872d6c1b9653">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;87.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.6&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(3.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1310_436ae917_198a_4f18_bb39_43117de4b057"
      unitRef="pure">0.874</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1311_df21707a_ef05_40fd_9124_b5706bdcd27f"
      unitRef="pure">0.148</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1312_d8ed240c_5dc4_4ff3_bd61_f6274df980a3"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1313_75880a75_b02f_405a_9c84_08dea13b6602"
      unitRef="pure">-0.038</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000213847Member"
      id="t_375_1edfa6f3_3b4c_af9d_c750_44496827dbd4">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;46.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Broad USD Investment Grade Corporate Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.7&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1314_9c0419d9_1257_4487_a40c_bdc72a0d48e5"
      unitRef="pure">0.465</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1315_4fc4b1b3_3d08_4f0a_9359_4d93774d96b1"
      unitRef="pure">0.140</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1316_e7cc6294_9e77_4eed_9dc8_5ff0796774e4"
      unitRef="pure">0.097</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1317_1d4168d8_a57a_47a9_bc81_771ef60e7c0f"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1318_8c3b4fb0_f79f_4e84_b3f1_f3946c0595f6"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1319_4a02cffa_9308_43e2_9ea2_447b7a18a72b"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1320_527fbf28_d3d4_45d6_94bd_1e1a4d576264"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1321_425fd1c0_6eb9_4a8e_ab32_221c3d76cc56"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_ISharesBroadUSDInvestmentGradeCorporateBondETFMember"
      decimals="4"
      id="h_1322_e5b05081_98aa_422d_a6e6_e6eac7e825fc"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000213847Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1323_3c204358_d737_44a2_afc5_1887f9fd4bbf"
      unitRef="pure">0.007</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000251825Member"
      id="t_370_4b67d31f_43a1_7cb7_e581_de4f2b374fa5">BlackRock LifePath&#xae; Dynamic 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000251825Member"
      id="t_371_66970c33_92b7_47be_e94f_927b32a15d09">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000251825Member"
      id="t_372_66d4bffc_96e6_6737_ba02_28d97789d1a3">LPYIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_361_dc877f32_8329_47b3_9d74_2aa91fa331df">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2070 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000251825Member"
      id="t_362_6ff88884_99dc_437e_8419_6ab684772d2d">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_363_660caafd_7720_461a_8724_57cf30e2dd13">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000251825Member"
      id="t_364_3631210e_b477_4fe7_b994_2420f682caa2">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000251825Member"
      id="t_365_bfce82c6_a251_4b5a_b0a1_d654edc9775f">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_373_e7bf3137_99d3_fa39_c82e_ebb018126df1">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;55&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.50&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000251825Member"
      decimals="INF"
      id="h_1324_a3c8e874_b82b_4537_bbfa_234e39e6b7e1"
      unitRef="USD">55</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000251825Member"
      decimals="4"
      id="h_1325_fae6b9cb_32a8_4557_90e3_6c07b9fd19e8"
      unitRef="pure">0.0050</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_374_279007d5_3709_13b6_0d8a_2f096a4b5938">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 20.98%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2070 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_375_424865ce_735c_eb6d_f67a_ed445970329e">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: September 24, 2024 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658602.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_376_33130446_f808_8f17_b290_53fb820bdbff">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.98&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.35&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.36&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.89&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2070 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.39&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000251825Member"
      id="t_384_7d021287_5ab5_2158_332b_08bf861ed5b4">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000251825Member"
      decimals="4"
      id="h_1326_7da023ac_efc7_4522_99c0_577c8b33f694"
      unitRef="pure">0.2098</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_C000251825Member"
      decimals="4"
      id="h_1327_2240f0bd_f3b3_4a32_a28d_5fa1abb135ee"
      unitRef="pure">0.1935</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000IndexMember"
      id="t_385_4272e59f_b15b_0048_427e_b8416b016b5a">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1328_7597eb65_9011_40e5_bcad_d7aa8cb86988"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_1329_dd611e04_eebc_47e5_be66_6c417b23e925"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_386_5f1d2498_799e_2b41_1d87_c9e9f7561161">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1330_7343d3a0_525f_4ff9_a4b4_b67dedb64614"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1331_c73b2b64_348d_4610_af98_ed466eb00d57"
      unitRef="pure">0.0289</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      id="t_387_ea077f1c_ca3c_a395_a9e6_c5fa2640ad5e">LifePath Dynamic 2070 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1332_8c975dfc_812c_4da9_89dc_4b5375c70303"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1333_914c99bf_ebd2_4c10_bdea_587f8db41bec"
      unitRef="pure">0.1639</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_377_9f2d6829_83a0_cbab_d158_b11c862c2d2d">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;6,076,678&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;3,519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;41&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000251825Member"
      decimals="INF"
      id="h_1334_35121961_0a21_490c_9cc7_2a4c63019911"
      unitRef="USD">6076678</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000251825Member"
      decimals="INF"
      id="h_1335_8c773894_feef_4051_b63c_21fc9ad26e33"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000251825Member"
      decimals="INF"
      id="h_1336_d131a386_363a_455a_8c75_e679d751f0af"
      unitRef="USD">3519</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000251825Member"
      decimals="4"
      id="h_1337_9273cd32_b827_4971_917d_1a66624bf6d8"
      unitRef="pure">0.41</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000251825Member"
      id="t_378_a8a2872a_fdeb_1054_99f1_e41b0388c98a">2024-09-24</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_379_bfbaddb3_5076_253b_2e58_b20b391d382d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2070 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2070 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000251825Member"
      id="t_380_594fef10_0d38_c8c9_038a_8bc3b59f4439">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_381_e61fd89c_468d_9a93_f0ff_0b40accc34f4">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_382_5b9e3f48_6778_95fd_9ec8_2029d00348cb">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_369_997029c1_689b_473d_909b_f7b817f02d5d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;97.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1338_1e8404a4_30cb_48dd_a6e2_66df175aaa41"
      unitRef="pure">0.974</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1339_d4aaabb8_c56a_4f89_9537_f172d38e2888"
      unitRef="pure">0.141</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1340_1913f3e5_bc37_4a53_b58b_4e7c82c67982"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1341_911eb7fc_9ac8_4d46_a90b_8e23b9fa4b49"
      unitRef="pure">-0.128</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000251825Member"
      id="t_383_c653c413_bef4_e162_45f8_ccf416973787">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1342_90d382eb_c377_4295_a3bc_6bfd122055cf"
      unitRef="pure">0.500</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1343_f7e76a29_bcfe_4c13_9dab_f8806319dfa2"
      unitRef="pure">0.128</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1344_08609791_04ef_4b5f_b156_d3ce11effbff"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1345_7690cda2_f927_4e56_a024_aa568dceb0e1"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1346_236fce4f_57f8_401a_94e3_a7fdb6e74cee"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_ISharesCoreMSCIEAFEETFMember"
      decimals="4"
      id="h_1347_b979879f_5f3f_48cf_89ad_1e9045f29b1f"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_ISharesMSCIJapanETFMember"
      decimals="4"
      id="h_1348_902eb41c_bbc7_4c94_a550_ab3668fab5ec"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1349_54e56493_a5dc_4c16_861e_783598699e7e"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1350_ece58363_0a57_406c_84ae_f11e10b5af83"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251825Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1351_07c2c411_a4b3_45c1_be53_cc65b737fa87"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000251826Member"
      id="t_379_f26c059b_f173_b05a_d334_747a13964e8d">BlackRock LifePath&#xae; Dynamic 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000251826Member"
      id="t_380_0d72a7d0_f196_d9b4_5096_108ed1fd1804">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000251826Member"
      id="t_381_0a7502b2_2c2d_c27e_5e0a_401082a5b19a">LPYAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_370_a68c5cf5_22fa_49da_9735_5522f7a7799c">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2070 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000251826Member"
      id="t_371_f2686358_ba67_4954_bd7e_28d3490c400e">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_372_dde2b281_5666_4064_9711_18d09d53eee0">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000251826Member"
      id="t_373_40f92129_6cd7_4438_91f2_b4825c9e47e3">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000251826Member"
      id="t_374_46a35382_83dc_424e_b7ac_59a3ccaa81ae">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_382_0410a217_a055_b08b_e842_3c9ba61ef518">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;83&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.75&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000251826Member"
      decimals="INF"
      id="h_1352_ffa25585_354b_4627_8356_a91abbff9288"
      unitRef="USD">83</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000251826Member"
      decimals="4"
      id="h_1353_1c2aa042_ab37_4ae7_b309_3c591e9eb79c"
      unitRef="pure">0.0075</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_383_95be7c91_1252_608c_ffbd_ff34f310e0ef">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 20.73%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2070 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_384_79b04a09_4dd9_40e5_84c9_e7f4db04b01d">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: September 24, 2024 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658536.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_385_760b2a87_04ed_2a66_0d6b_9a84729b7fcd">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.73&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.02&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.39&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.77&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.36&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.89&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2070 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.39&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_387_2f711808_5d96_822b_fb31_d04ec20da0c9">Investor A Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
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      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_C000251826Member"
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    <oef:AvgAnnlRtrPct
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      id="h_1356_b4e9c6ea_d528_40d0_bc1c_671d718e7523"
      unitRef="pure">0.1439</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1357_a1945e9a_05da_4058_b657_dcce20436f80"
      unitRef="pure">0.1277</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_389_1169b3d6_f21e_361e_14b5_87831ee9b5a5">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_1358_b3b306c4_ee4e_4340_b918_42ec6777d77c"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_1359_3797a33a_a45b_4d81_9adf_10a04536841e"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_390_641ff4e9_ff86_fd01_33aa_974123a41006">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1360_1bd5e41a_7f5e_4af1_96f0_482f29d5d540"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1361_c34ff117_7ac9_4623_bc15_b6387e088aed"
      unitRef="pure">0.0289</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      id="t_391_ecd688c8_35c8_f09e_19ba_a043db9bc336">LifePath Dynamic 2070 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1362_cdfdcdd6_396e_4293_9aa4_71b6de63a21d"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1363_25c87869_7275_461f_975a_9fd5397bdcf2"
      unitRef="pure">0.1639</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_386_c4cbf4f0_0feb_8e08_28be_255e1dc062cb">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;6,076,678&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;3,519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;41&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      id="h_1364_bfcc644d_fa26_41aa_b54b_f0de2407c3de"
      unitRef="USD">6076678</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="h_1365_7eccfae3_4cfd_4b5a_80d7_b294e495ae52"
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    <oef:AdvisoryFeesPaidAmt
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      decimals="INF"
      id="h_1366_cd9df4ce_8472_4fb5_8723_7fa80dc7ceae"
      unitRef="USD">3519</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000251826Member"
      decimals="4"
      id="h_1367_fa2f59da_c89e_4729_b696_f3ede70c7d61"
      unitRef="pure">0.41</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000251826Member"
      id="t_392_01ea9458_02c5_dd28_7cc9_6be840b71edf">2024-09-24</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_393_30b39176_ef18_497e_70d1_115555292cb1">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2070 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2070 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000251826Member"
      id="t_394_3555fd03_0cf4_2de4_4eec_880fbc3d2096">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_395_c9c20791_d14b_7791_501c_9cb5b3f51242">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_396_5e64f7a1_7d49_09bf_6774_59e746053465">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_378_1c9810d2_2fdb_4da3_ae57_4b3739a8ec5c">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;97.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1368_be908875_41aa_4a21_bac3_683d78736db9"
      unitRef="pure">0.974</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1369_34240187_995f_419f_b107_7a921a9d8e9b"
      unitRef="pure">0.141</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1370_bdd3605f_c54e_4287_a385_8941831dc1b5"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1371_2c8908a2_2d78_45f0_984c_76ad8bbc7355"
      unitRef="pure">-0.128</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000251826Member"
      id="t_397_9fcd8b9b_295a_469a_fa2c_d1e0c24b35cb">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1372_4fdd1397_e9a6_482d_9151_0fa32175559e"
      unitRef="pure">0.500</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1373_cbfcae7d_6774_426c_9108_061473338640"
      unitRef="pure">0.128</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1374_34a5f9ef_2967_48c7_8a33_4ab7bb04b1a5"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1375_a119fcde_650c_4099_9d7f_367dc372338d"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1376_4d255b98_d960_4160_a56a_4e267a9eb566"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_ISharesCoreMSCIEAFEETFMember"
      decimals="4"
      id="h_1377_d1b01888_9c26_4032_b610_567ae16ebe84"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_ISharesMSCIJapanETFMember"
      decimals="4"
      id="h_1378_7e585c1a_ce51_449c_9df2_a66c3461bdc8"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1379_01bea87f_281a_4b73_a7cb_579a6986a4f6"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1380_5dc856d2_b7b1_4885_ab3d_9c6e51c51cd3"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251826Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1381_f125c46a_06ef_4966_ada7_210f1e17df58"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000251827Member"
      id="t_388_6aecb7d6_8d7c_46e5_9158_8f9c38ec54cf">BlackRock LifePath&#xae; Dynamic 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000251827Member"
      id="t_389_8a3a3960_7f3b_36fa_6e41_f6a061f37b44">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000251827Member"
      id="t_390_b367343e_e115_f90c_a425_d87403c65dfc">LPYCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_379_26ee2a68_1f02_4a99_8ece_cca9de43f16f">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2070 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000251827Member"
      id="t_380_450fdf68_8947_49f1_a8ec_fae305bf20ce">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_381_7d303b53_59b4_41b6_a290_6606ae97117f">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000251827Member"
      id="t_382_ab9438d7_ac25_44c5_84a4_67f4ae9fdf3b">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000251827Member"
      id="t_383_f92dc37b_89e9_4d4a_b6c4_032a54f7f908">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_391_a0d4c5af_9e7e_ab85_c0f3_0365cdd727dd">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;165&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.50&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000251827Member"
      decimals="INF"
      id="h_1382_6d6ca231_7320_43b5_8bba_12390cde21a0"
      unitRef="USD">165</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000251827Member"
      decimals="4"
      id="h_1383_87dcbb9e_4c71_4fe1_a703_cba1a9da8d28"
      unitRef="pure">0.0150</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_392_4a2f8df9_adbb_7bd0_50fc_ddf2bfa6e2b7">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 19.84%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2070 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_393_d100bb15_83ec_b6c4_c6d5_8e66118ff048">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: September 24, 2024 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658589.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_394_5e7c64e9_9f3d_eb3c_f443_034ab10ee2c4">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.84&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.90&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.84&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.90&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.36&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.89&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2070 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.39&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000251827Member_WithoutSalesLoadMember"
      id="t_402_c15cbfc8_9976_7974_4fd5_783518fac470">Investor C Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1384_cd08dd7f_62eb_4149_abe6_5a608bdb5d39"
      unitRef="pure">0.1984</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_C000251827Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_1385_635fd171_6033_43d3_aae0_1130de0f31c7"
      unitRef="pure">0.1790</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_C000251827Member"
      id="t_403_34f06afe_c3b9_5446_86ac_bca6bd6586d0">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1386_aa5947a4_38c7_412b_a3ed_d09fc2efb31f"
      unitRef="pure">0.1884</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_C000251827Member"
      decimals="4"
      id="h_1387_713ebaf4_c177_4149_8b5e_c1a6e015ebab"
      unitRef="pure">0.1790</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
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      id="t_405_17fd6d87_be79_04cc_2977_d59928d7539a">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1388_f4a01b5f_81e5_4c55_8b07_0bc46cdaf5e2"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_1389_792e8ee2_c187_4928_a440_a1475854777a"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
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      id="t_406_f4f105d4_8319_eac7_fe62_5200c346bbe5">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1390_d6b2d847_3013_4e51_a592_339832e5615f"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1391_5fa62a11_9c29_462c_a166_b492b4c1fcfa"
      unitRef="pure">0.0289</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      id="t_404_07f9c2e1_d3b9_8a3e_6854_2a641ca1466a">LifePath Dynamic 2070 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1392_bfbd0c0c_d46d_4e5c_af2f_e7a5dc5af58a"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1393_1edc0164_2059_4132_b38d_68d5118f4eb2"
      unitRef="pure">0.1639</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_395_62dfa58a_2f0d_afd4_5213_33bf59f91351">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;6,076,678&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;3,519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;41&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000251827Member"
      decimals="INF"
      id="h_1394_551b9722_7c29_459b_bd08_cd026d4c7e52"
      unitRef="USD">6076678</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000251827Member"
      decimals="INF"
      id="h_1395_0cdcb068_9f88_43e7_af15_9d2bff2a0091"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000251827Member"
      decimals="INF"
      id="h_1396_e18f8909_cb1d_47e2_be3d_4160b3daecde"
      unitRef="USD">3519</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000251827Member"
      decimals="4"
      id="h_1397_c05be997_973d_4248_a55e_051dfdbbd783"
      unitRef="pure">0.41</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000251827Member"
      id="t_396_df3c02d2_7d22_8e5e_aefa_e532903531d1">2024-09-24</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_397_9be14eaa_6a1d_7a76_48fc_c09f4d5091fa">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2070 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2070 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000251827Member"
      id="t_398_539e5d03_4afa_ff0b_6966_add2cb1ead5b">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_399_214772ac_1bbc_ecb4_83d3_47974d113e74">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_400_125bda3d_9693_49f6_df2e_bc187b344135">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_387_99eea2e0_8096_4080_9ad1_9327e62846f1">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;97.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1398_769d41a1_8015_4ede_8faf_42700369703d"
      unitRef="pure">0.974</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1399_ea06b1d6_1ebf_49e1_80d7_70cb386df1d4"
      unitRef="pure">0.141</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1400_54fbe6c9_9bf1_4e6d_b5c1_5c01ef19b3be"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1401_90c8b60f_6f05_4857_8c43_f256dbcd6bed"
      unitRef="pure">-0.128</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000251827Member"
      id="t_401_1193be31_8daa_5499_9820_3fd54769fd9e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1402_29ad33d5_67aa_46e6_867d_63c16711689b"
      unitRef="pure">0.500</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1403_5b893376_c183_40ad_b028_35e62f4b1f21"
      unitRef="pure">0.128</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1404_ce106a30_95c3_42aa_b4e0_8b4885cf470c"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1405_348a825f_e2ea_49a6_b0ad_4ffa7cc106b4"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1406_e4a8f095_29d7_41f1_a50a_009235c1de45"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_ISharesCoreMSCIEAFEETFMember"
      decimals="4"
      id="h_1407_4211fd31_2345_4695_804c_b94f48798670"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_ISharesMSCIJapanETFMember"
      decimals="4"
      id="h_1408_a904d930_5462_4c10_b09f_cc31c31e9b42"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1409_56ae6ba3_99b6_4fcf_85dc_128f31311cbb"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1410_d765dc03_4bbd_401b_956e_f1458a32e69b"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251827Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1411_85b38c68_99a4_4a38_a55a_0613cb26b741"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000251828Member"
      id="t_397_88f613be_4a24_5575_e0a4_a343f01554ee">BlackRock LifePath&#xae; Dynamic 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000251828Member"
      id="t_398_59710a26_7560_696f_2768_8215ac78e94d">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000251828Member"
      id="t_399_0bf70b49_024a_c0a0_06c8_431e55bb2ff8">LPYKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_388_61069dd9_1710_41c6_95f5_047b5969fd6a">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2070 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000251828Member"
      id="t_389_daf3806f_51c5_4c42_802f_74a9acd74b77">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_390_12b98c47_9e85_4069_ac5d_81942e523111">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000251828Member"
      id="t_391_7d79d092_503d_4aad_80b7_215e40c4fbc8">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000251828Member"
      id="t_392_5a068268_67be_4d10_bbe2_36af799aeb08">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_400_2b673427_69fd_d235_7067_0a18dd197f66">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;28&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.25&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000251828Member"
      decimals="INF"
      id="h_1412_2c8c0b61_d32c_4f39_b42e_857270d7132e"
      unitRef="USD">28</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000251828Member"
      decimals="4"
      id="h_1413_b871a8a9_1d94_48b7_ae3f_029805ada4f0"
      unitRef="pure">0.0025</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_401_fe36f97c_4f79_03b5_7b7b_0bf7e264cf70">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 21.26%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2070 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_402_af81fcad_5c83_1889_ef94_b2e2269fde7b">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: September 24, 2024 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658523.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_403_7f6fc532_9fe6_a22a_6f44_5ad5bf53c472">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.26&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;19.70&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.36&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.89&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2070 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.39&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000251828Member"
      id="t_411_22061915_dac9_a89b_760a_16430657dda3">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000251828Member"
      decimals="4"
      id="h_1414_81af3db3_f664_4c7f_852a_2365152d492c"
      unitRef="pure">0.2126</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_C000251828Member"
      decimals="4"
      id="h_1415_084cab03_7e70_4fa5_a040_6a8675403e6b"
      unitRef="pure">0.1970</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000IndexMember"
      id="t_412_5f77a809_b33e_36d4_f846_4022b5c1ca9f">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1416_0108f8db_c6c2_4c3b_8cf5_5f4cfd4ed8c0"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
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      decimals="4"
      id="h_1417_f0cb5940_a169_463d_bbe6_24bae875323c"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_413_471f3dc9_3e1a_370e_68c5_b7315028358b">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1418_c1fc9ae4_4620_4336_a901_eb10cc5a7c7c"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
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      contextRef="D20240924_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1419_2dc91646_ffb4_4ec5_8bf7_8913eeaf98b0"
      unitRef="pure">0.0289</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      id="t_414_1f53d6a6_2a77_13a2_5729_07abff0bc8f1">LifePath Dynamic 2070 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1420_da2eb02f_d64e_4dd3_8d23_dc4cb86fea54"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1421_5e454c7c_174b_444e_a22f_4963945beef1"
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      contextRef="FY2025_C000251828Member"
      id="t_404_1368a50c_130a_12e4_a3f5_4c8094d8c30f">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;6,076,678&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;3,519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;41&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000251828Member"
      decimals="INF"
      id="h_1422_5ac44026_7703_4be5_92cd_92a684cbc4e2"
      unitRef="USD">6076678</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000251828Member"
      decimals="INF"
      id="h_1423_6828b385_8052_4c4c_9616_633516b9e591"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000251828Member"
      decimals="INF"
      id="h_1424_c7a633c3_afed_4a7a_b95d_1d8a04d82bb0"
      unitRef="USD">3519</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000251828Member"
      decimals="4"
      id="h_1425_c18d1f74_53c2_489d_955e_e97eba1a177b"
      unitRef="pure">0.41</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000251828Member"
      id="t_405_bfa50b9e_49f1_b082_3326_dd651fb00b5f">2024-09-24</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_406_66e1361f_461d_75e5_cf4a_0908fe5be257">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2070 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2070 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000251828Member"
      id="t_407_0d6b8c15_0c5c_ee78_38b6_61214ba73c0b">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_408_af945919_3191_1f3b_48ad_9728b58a96d1">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_409_2bc7cdd2_8c09_ba61_a491_d800af5b294b">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_396_06c3dee5_63f9_4c74_b9fc_00a4132a636b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;97.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1426_fee18567_afe6_4e1a_867f_d59a70422e0c"
      unitRef="pure">0.974</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1427_d31a7b8c_4b74_4241_8f76_6ac9543259d3"
      unitRef="pure">0.141</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1428_e28356f8_a446_43c0_810b_dff563df9a4f"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1429_7c44cd09_61d0_4a6d_b670_1bf6e9d561b7"
      unitRef="pure">-0.128</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000251828Member"
      id="t_410_f051320f_0f39_b755_c722_69a56e48a098">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1430_5d5c6dab_6695_48b6_b95c_4e8d609b8604"
      unitRef="pure">0.500</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1431_090aa9d7_ad1c_48c8_89bf_bbd70a3e2da7"
      unitRef="pure">0.128</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1432_0d3399b0_9d8e_4c8a_8f98_03d04c98764b"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1433_58046d14_197a_4e38_95b2_c0250c0658b9"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1434_35fcda00_ca27_42b4_8de3_c8259d1b1441"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_ISharesCoreMSCIEAFEETFMember"
      decimals="4"
      id="h_1435_a3563cec_7c3c_46ee_9450_cbdb02f6b2aa"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_ISharesMSCIJapanETFMember"
      decimals="4"
      id="h_1436_dd254a92_4419_4bd5_97d0_874ffb8bb408"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1437_8f26e53c_22e0_4c8e_bcb1_6f434c8a8283"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1438_0c450081_32ae_4996_95b7_9686e0a82966"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251828Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1439_68d827f4_a483_4f6d_ad93_9db3843c2ca8"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000251824Member"
      id="t_406_6c86d983_88b0_4ef3_08ee_45f4a0d65c3e">BlackRock LifePath&#xae; Dynamic 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000251824Member"
      id="t_407_a1ddfdbc_2702_bd66_72cc_4f110a7ea4f8">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000251824Member"
      id="t_408_15128046_3949_249b_3148_7e36d9f8517b">LPYRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_397_ab289b0c_e01f_4303_9cd8_596119edf5a1">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic 2070 Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000251824Member"
      id="t_398_34a6c60e_1285_47ce_80fa_cdc8da57fd88">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_399_0c11449c_a2d2_4b6a_bc52_55fc08e3683b">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000251824Member"
      id="t_400_ed00b2d7_c484_4a4a_8054_9667596ba8d5">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000251824Member"
      id="t_401_49ceb5e0_7138_4eb0_85cc_e187e6a14351">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_409_33c9fdd9_94fd_167f_de3d_a909ddf546ee">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;105&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.95&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000251824Member"
      decimals="INF"
      id="h_1440_d8ad2bde_830f_45c4_9be1_0e8f1dc966e0"
      unitRef="USD">105</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000251824Member"
      decimals="4"
      id="h_1441_25e74d88_dc3e_4443_aaa4_d2452fbd9680"
      unitRef="pure">0.0095</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_410_c98be66a_99de_7c57_8c55_383175affd33">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 20.45%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37% and the Bloomberg U.S. Aggregate Bond Index returned 7.30%. The LifePath Dynamic 2070 Fund Custom Benchmark returned 21.74%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_411_c3cbd690_e30d_aa1a_8f14_77ac06593c8a">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: September 24, 2024 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658470.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_412_dca0d946_46cb_d8ad_a6c2_a0eb230ccf53">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Since Fund&lt;br/&gt; Inception&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;20.45&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;18.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.36&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.89&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic 2070 Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;21.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;16.39&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_420_a232aa66_ad5e_5a1c_e513_b85cab150b12">Class R Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000251824Member"
      decimals="4"
      id="h_1442_b052bb50_4199_4ec5_a6fa_f0304fa7abfa"
      unitRef="pure">0.2045</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_C000251824Member"
      decimals="4"
      id="h_1443_1093736b_684a_4326_85d0_ca0332dc2820"
      unitRef="pure">0.1868</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_Russell1000IndexMember"
      id="t_421_bb1c3fdf_8105_8af9_c83e_66864dc72218">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000IndexMember"
      decimals="4"
      id="h_1444_f5b1c568_5432_4689_bc92_f0e264c0848a"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_Russell1000IndexMember"
      decimals="4"
      id="h_1445_9a968277_bd79_45de_b7e3_607e9d5e963c"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      id="t_422_62595d4b_0293_6a4c_decd_870161297372">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1446_41a43561_8e31_4e1a_ba74_48e3014cf6fe"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_BloombergUSAggregateBondIndexMember"
      decimals="4"
      id="h_1447_64336d11_c994_42e1_913d_8cc78129f0a3"
      unitRef="pure">0.0289</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamic2070FundCustomBenchmarkMember"
      id="t_423_06b4101d_5d21_8c13_893d_ce0d005065de">LifePath Dynamic 2070 Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1448_0ec161a7_0009_4482_abea_efc43a4517de"
      unitRef="pure">0.2174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="D20240924_20251231_LifePathDynamic2070FundCustomBenchmarkMember"
      decimals="4"
      id="h_1449_c2c01fd9_ef87_4dce_8a73_7f2939bdd00e"
      unitRef="pure">0.1639</oef:AvgAnnlRtrPct>
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      id="t_413_debf983a_51bb_95ad_6552_275ed32a04c1">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;6,076,678&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;32&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;3,519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;41&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000251824Member"
      decimals="INF"
      id="h_1450_e9bb8aea_728f_4294_8032_83bafbd54a7a"
      unitRef="USD">6076678</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000251824Member"
      decimals="INF"
      id="h_1451_4320de21_d898_4084_80c1_a4cc63967f51"
      unitRef="Holding">32</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000251824Member"
      decimals="INF"
      id="h_1452_d275214b_aa65_4bda_87f7_42b2a2173ae3"
      unitRef="USD">3519</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000251824Member"
      decimals="4"
      id="h_1453_ff800fb9_9a29_4864_bdb9_ecc147a7743c"
      unitRef="pure">0.41</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerfInceptionDate
      contextRef="FY2025_C000251824Member"
      id="t_419_fdb51ab6_5219_6656_4720_eb252d6beda2">2024-09-24</oef:PerfInceptionDate>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_415_70f34ee7_f2e8_6e8d_191c_55019473c71e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic 2070 Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic 2070 Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000251824Member"
      id="t_416_b14d8b65_e9fb_c29f_8acf_0fabd4073c98">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_417_11079a90_2710_f828_6c7c_20bdebf68d67">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_418_f21c7c8a_6a38_8d56_ca5c_4e13e14c9d49">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_405_8d1e1468_c61d_4d5e_96b8_e8733ba07e9e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;97.4&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;14.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.3&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1454_ddfbe4fd_3730_4035_a528_56c882d1901d"
      unitRef="pure">0.974</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1455_af4a185c_a953_448c_9ff5_47bb58398f76"
      unitRef="pure">0.141</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1456_bfe42a83_9bb5_47b5_8057_ff2ae54336bc"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1457_58cd8230_588c_4722_88a7_6b0d87b5d43b"
      unitRef="pure">-0.128</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000251824Member"
      id="t_414_8a72d0ad_758c_71db_04c6_821f0b0c197d">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;12.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;11.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI International Developed Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.1&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.3&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Japan ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.0&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;2.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Russell 2000 ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1458_498e5ac1_1841_4457_8f19_aa39c9e220cf"
      unitRef="pure">0.500</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1459_6fe89881_ae88_4633_8ae3_b393eb25f4b0"
      unitRef="pure">0.128</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1460_96aea946_9c62_4ced_bf45_aafbf37ce8ce"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_ISharesCoreMSCIInternationalDevelopedMarketsETFMember"
      decimals="4"
      id="h_1461_79fa8e4e_e1f7_4303_ad0e_592a37cf9177"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1462_0f195edc_9614_47d5_a6b3_371ee2d78272"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_ISharesCoreMSCIEAFEETFMember"
      decimals="4"
      id="h_1463_1d7fd6c4_dfa7_4912_a0c4_c2e066796c9c"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_ISharesMSCIJapanETFMember"
      decimals="4"
      id="h_1464_278bbb51_f2cc_4d54_9afd_8ab1767380fa"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1465_58edb140_f2ce_4d21_98a3_eb09eab2c395"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1466_cefe5d01_49ab_46b1_957d_4c0595f6fbef"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000251824Member_ISharesRussell2000ETFMember"
      decimals="4"
      id="h_1467_7b0fe947_6e8a_4a14_bc3a_e7a8f13ba9b1"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000012002Member"
      id="t_415_fb1199ae_88b3_dfee_eced_a286f43aaf8a">BlackRock LifePath&#xae; Dynamic Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000012002Member"
      id="t_416_9f884bec_2524_5b6a_5f65_b7a99877984b">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000012002Member"
      id="t_417_2f47c34c_d3d0_7944_2f75_4b4cf4efe974">STLAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_406_ab7be3c8_8f93_42ba_9940_ec787a7167b4">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic Retirement Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000012002Member"
      id="t_407_7efb41e5_7b1b_49ff_b6aa_82428f726222">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_408_1e0dcb10_658d_4eb2_b28b_a044dac44d2b">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000012002Member"
      id="t_409_b2fa5fa6_0dc5_4b2a_8c9c_c7a7ac7edce7">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000012002Member"
      id="t_410_8603f3e9_f31e_4efb_aded_ee020faadef6">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_418_acee9937_2b17_c933_f420_316a38b62665">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;50&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.47&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000012002Member"
      decimals="INF"
      id="h_1468_53892f38_ff5e_4c6d_b69d_cb34a80dcee0"
      unitRef="USD">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000012002Member"
      decimals="4"
      id="h_1469_cabf6d4a_07ed_4476_9da7_d0cb075eb983"
      unitRef="pure">0.0047</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_419_d57d26a7_c90e_c809_95fc_199ec7e5cf05">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Institutional Shares returned 12.01%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg U.S. Aggregate Bond Index returned 7.30% and the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37%. The LifePath Dynamic Retirement Fund Custom Benchmark returned 12.68%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_420_6de28f7f_0be6_192b_dbb2_97a9da238df5">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658794.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_421_ebf0375f_eafc_a20d_62e5_6f97a51d0816">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.01&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.40&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.43&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic Retirement Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.68&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.13&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.02&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="t_428_7cf53801_1182_57bf_f7a1_2bf79248e3ab">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000012002Member"
      decimals="4"
      id="h_1470_bd23766a_34fb_419c_b946_c6090b526e9f"
      unitRef="pure">0.1201</oef:AvgAnnlRtrPct>
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      contextRef="FiveY2025_C000012002Member"
      decimals="4"
      id="h_1471_0c5fb543_6b1c_4fd3_989c_08733bee81ef"
      unitRef="pure">0.0440</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000012002Member"
      decimals="4"
      id="h_1472_7005bf47_f7f7_456c_be61_ed47779578b0"
      unitRef="pure">0.0643</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_BloombergUSAggregateBondC000012002IndexMember"
      id="t_429_120ab09e_7cbf_1151_ccb3_f01be7b47a25">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_BloombergUSAggregateBondC000012002IndexMember"
      decimals="4"
      id="h_1473_eaebf3e6_0f33_418f_bb13_e41e031f7f81"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondC000012002IndexMember"
      decimals="4"
      id="h_1474_2179abe3_cc5c_479b_86b0_9ec731e9ec59"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondC000012002IndexMember"
      decimals="4"
      id="h_1475_4044c3b9_35d5_4065_bee4_101bd01dedbb"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000C000012002IndexMember"
      id="t_430_88d75341_19da_a863_672b_022061e2744d">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000C000012002IndexMember"
      decimals="4"
      id="h_1476_5e58ecce_8b08_4050_a10a_30a91e2cf395"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000C000012002IndexMember"
      decimals="4"
      id="h_1477_c148a5e5_6c5e_44f1_986b_b5379baa974e"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000C000012002IndexMember"
      decimals="4"
      id="h_1478_7ecd07ef_a1a2_499d_bdab_4fca23da748d"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      id="t_431_ea35f6f5_c631_66a4_a883_817f3cadfe68">LifePath Dynamic Retirement Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      decimals="4"
      id="h_1479_7d170a70_d222_45d5_b912_41424ecf6519"
      unitRef="pure">0.1268</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      decimals="4"
      id="h_1480_f3194250_f7b1_45b5_9664_e48b8046f53e"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      decimals="4"
      id="h_1481_ceb80891_dd31_4b5f_8da0_c41c255419fe"
      unitRef="pure">0.0602</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_422_3cb697d3_b1fa_0760_60e0_c04306e4a477">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;502,351,704&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;576,258&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;17&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000012002Member"
      decimals="INF"
      id="h_1482_8da37aa5_cb9c_4057_99fc_38e4ea3c3c4b"
      unitRef="USD">502351704</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000012002Member"
      decimals="INF"
      id="h_1483_11b7d29f_9990_483b_9349_8b5e365dc0a3"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000012002Member"
      decimals="INF"
      id="h_1484_95878bfe_db61_4332_8844_318066f407f3"
      unitRef="USD">576258</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000012002Member"
      decimals="4"
      id="h_1485_5e84aaca_547a_473f_809e_9c3e526fa354"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_432_2a712600_4ca0_d91d_d12b_cd053af37eb3">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic Retirement Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic Retirement Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000012002Member"
      id="t_424_c640ae28_f61a_17bc_8ff2_f7b752701f99">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_425_a48ed443_4a62_08a6_1300_758b1231bada">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_426_0b68fd19_f667_8aed_b0c4_550e0f33c899">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_414_8d3dfcd1_9563_4271_9ef2_4d8b2a9e2e61">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;43.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1486_6e7dbfa2_9d49_4f50_887e_1e2541a50c29"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1487_adfa8ee4_eba7_4589_aa7c_d5391fe948d8"
      unitRef="pure">0.439</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1488_3501bec0_5a61_42d9_ad1a_6715cb01d44c"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1489_2b460c22_8577_4344_9541_78370cf14c61"
      unitRef="pure">-0.005</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000012002Member"
      id="t_427_2781d768_b4a6_fc40_3040_3b5a8cfff8e5">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1499_1c635b5a_7c85_0632_38f6_426c12f9b000"
      unitRef="pure">0.405</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1490_4b9d8c4b_f819_478e_920e_2b6cb04386f2"
      unitRef="pure">0.242</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_1491_92819258_83b7_4d65_853e_8d818abb6e00"
      unitRef="pure">0.096</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1492_abcef0dc_5602_4cc5_8cf4_ed52149558d1"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1493_90708f5d_efbe_44d8_b066_dbbfd5e774d2"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1494_455801b4_ebf2_442d_948a_ea00dfdeb88a"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_1495_25ad3f05_8e4b_43bc_91d3_fafbb0e03600"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1496_ac856211_bcbf_4635_a3e4_799759c2164f"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_1497_66a729b9_1d77_4bc1_beb4_de9257de2f61"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012002Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1498_cdd435f1_e243_43bb_a076_5813bd920f6d"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000012001Member"
      id="t_424_62d5e065_c309_07c5_502f_37d5d0dd6c0e">BlackRock LifePath&#xae; Dynamic Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000012001Member"
      id="t_425_b06f83df_ed10_c334_9d04_29e54548c557">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000012001Member"
      id="t_426_03a52cf0_d559_94df_628d_cf5c1f9ba03c">LPRAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_415_cf1952df_0638_4392_9dda_cb9d5715d39b">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic Retirement Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000012001Member"
      id="t_416_cc289262_f72e_42a5_929d_8b04469b2319">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_417_9edf130e_151a_4d05_8220_174e7769c163">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000012001Member"
      id="t_418_1bf42aa1_c107_4e51_a384_e752c7cba4af">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000012001Member"
      id="t_419_28e8997d_82cb_488c_a498_cea1cbb9aae2">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_427_f94e9644_6525_a2bf_201e_911d8d85f380">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;76&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.72&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000012001Member"
      decimals="INF"
      id="h_1499_97aade21_6344_4862_9704_060bf6fa2c53"
      unitRef="USD">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000012001Member"
      decimals="4"
      id="h_1500_fac75a41_033d_4962_b289_c264e7a22f72"
      unitRef="pure">0.0072</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_428_44d62fa9_2ed8_0e5b_e593_3f1f8c8b400c">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor A Shares returned 11.74%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg U.S. Aggregate Bond Index returned 7.30% and the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37%. The LifePath Dynamic Retirement Fund Custom Benchmark returned 12.68%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_429_cc06707e_4698_a6bd_261d_79d7ccab6eff">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658743.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_430_3d4de870_6580_23e9_174d_ef4d2db00248">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.74&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.14&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.16&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.87&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;3.03&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic Retirement Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.68&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.13&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.02&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="t_436_5a1adc33_2844_bed3_d06b_ff77a9810447">Investor A Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1501_61b96b0a_aea2_444c_bf16_ec2c22e059c7"
      unitRef="pure">0.1174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1502_2ac0704f_bdb0_482a_a941_aa278b42bce4"
      unitRef="pure">0.0414</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000012001Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_1503_fc7ff79d_6e9d_46ba_9479_e095492bc29a"
      unitRef="pure">0.0616</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000012001Member"
      id="t_437_d1db19b2_988c_80c4_1125_cd9b44f85b89">Investor A Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000012001Member"
      decimals="4"
      id="h_1504_fa527a6b_eb1d_4712_94b8_5355bce8676e"
      unitRef="pure">0.0587</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000012001Member"
      decimals="4"
      id="h_1505_ef70dd91_241b_4047_97f7_c21ea05105b5"
      unitRef="pure">0.0303</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_C000012001Member"
      decimals="4"
      id="h_1506_361d2fd9_37bc_4d85_93c5_febb422a9707"
      unitRef="pure">0.0559</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_BloombergUSAggregateBondC000012001IndexMember"
      id="t_438_ddf326f2_5e92_e0f8_cf37_e1328daa1439">Bloomberg U.S. Aggregate Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1507_4487b0f6_c2fa_40c6_9941_fe14b2871e41"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_BloombergUSAggregateBondC000012001IndexMember"
      decimals="4"
      id="h_1508_e0a7de98_c39d_49be_a4f8_e3a24b11d78b"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondC000012001IndexMember"
      decimals="4"
      id="h_1509_31c0e1a4_e15b_4311_933c_10960f0ce222"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000C000012001IndexMember"
      id="t_439_01c7db23_bf94_c0e9_8446_2a1d746cf3b2">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_Russell1000C000012001IndexMember"
      decimals="4"
      id="h_1510_d5891d2a_72c4_498d_978c_a07d6473963e"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_Russell1000C000012001IndexMember"
      decimals="4"
      id="h_1511_246762a9_4c34_4f7b_b183_26b2d0938847"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_Russell1000C000012001IndexMember"
      decimals="4"
      id="h_1512_22ff9d12_cde4_422f_822c_e482635239b3"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      id="t_441_e9ef5367_2563_8882_92d8_5c5575ae155d">LifePath Dynamic Retirement Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1513_5b829559_7509_4b1c_9e80_7f210b47e5b8"
      unitRef="pure">0.1268</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      decimals="4"
      id="h_1514_154f8d8f_603a_43c1_98d7_54a9e30a88f5"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      decimals="4"
      id="h_1515_39aa6fc9_5085_4209_94f5_f39e02a49e9a"
      unitRef="pure">0.0602</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
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&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;502,351,704&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;576,258&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;17&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000012001Member"
      decimals="INF"
      id="h_1516_2a1aa355_8537_4075_acd1_1842cc5f3d1d"
      unitRef="USD">502351704</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000012001Member"
      decimals="INF"
      id="h_1517_846f3b80_82de_4509_b420_f2ebec68ad93"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000012001Member"
      decimals="INF"
      id="h_1518_3c78c62a_2d4d_4e61_9e20_e782e31bd51f"
      unitRef="USD">576258</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000012001Member"
      decimals="4"
      id="h_1519_d052211f_f420_47ec_8104_8e4b9d164a98"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_442_8c7e2c40_fc3f_5ce2_24d9_dd70c8dc6f76">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic Retirement Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic Retirement Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000012001Member"
      id="t_432_f519a14d_6f00_85a3_6d6a_74f995afc514">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_433_191d710c_e538_9366_a688_186f72b8c8c4"> Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_434_eff5e7a3_d806_fb30_88df_0becb354fcc6">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_423_45609fff_7146_4474_9ce1_44dc9e37e190">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;43.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1520_9cea0a5e_c4af_41b0_a9c2_b39aa2e805db"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1521_bd4989c1_dcff_46e9_9622_d8e0394f7264"
      unitRef="pure">0.439</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1522_27bc503c_ccd8_4249_bf66_d0378eec149c"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1523_a1e1da3a_d02a_404a_8402_1b30518ea73f"
      unitRef="pure">-0.005</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000012001Member"
      id="t_435_39505970_1685_f725_4dd6_2f906a0582a4">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1533_2bcade7a_75f9_215b_ddb0_efc03818fe77"
      unitRef="pure">0.405</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1524_3cb00be5_42bf_49b4_b9bb_bb46323fe070"
      unitRef="pure">0.242</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_1525_54c273aa_21f5_4b58_868d_c6fc36ab5fb3"
      unitRef="pure">0.096</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1526_53298144_82f4_491b_a835_b44d775fae87"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1527_9be79967_b0af_449d_893d_51c3e1fde082"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1528_c0a61f0e_eee8_4aaf_9ec4_9bd14e9d1f97"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_1529_03e4dad0_19b2_43be_9bc0_8b961c0d6b24"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1530_00adcf9c_525d_468d_86bd_5f6eaf7ebc7d"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_1531_3980f677_4895_421f_ba0a_1e644d101afd"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000012001Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1532_cf7fb37e_2235_413a_bf7c_26323ceea52b"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000088841Member"
      id="t_441_fd562a40_4dcb_4416_c713_c7c089767b3f">BlackRock LifePath&#xae; Dynamic Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000088841Member"
      id="t_442_98d74dca_c2d4_dd19_0e16_e8b601cadddc">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000088841Member"
      id="t_443_61e96633_9a86_109d_ab5f_0be609456729">LPCRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_424_5cbd4458_c775_4caf_9229_e39e84e719a0">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic Retirement Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000088841Member"
      id="t_425_400376b6_40ab_486d_bacf_0353d7a9fcb4">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_426_601a5727_c542_4ba9_8462_1aa1828e9cec">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000088841Member"
      id="t_427_7947e859_d3b6_4d49_8081_89f8e89e166a">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000088841Member"
      id="t_428_decd4fdf_13a1_4393_a79a_a42b5c8b61d7">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_433_d41f9429_a72e_f0ec_194b_068a0ed8764e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;155&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;1.47&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000088841Member"
      decimals="INF"
      id="h_1533_12f2a270_f8d0_4c91_9569_75cd868fed5d"
      unitRef="USD">155</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000088841Member"
      decimals="4"
      id="h_1534_364bc4f5_fa08_45ff_afa6_7c2ead46bbb9"
      unitRef="pure">0.0147</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_434_cd3a3b31_03bb_98e7_9230_6ae004c214a1">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Investor C Shares returned 10.88%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg U.S. Aggregate Bond Index returned 7.30% and the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37%. The LifePath Dynamic Retirement Fund Custom Benchmark returned 12.68%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_435_511c92b8_b722_a35e_6e67_45d8b413a4b1">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658730.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_436_e806b319_2212_73ba_d91f_ea186d4dd05c">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;10.88&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;3.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.51&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;9.88&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;3.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.51&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic Retirement Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.68&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.13&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.02&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_437_5535219e_c4e9_b9e0_51ec_4a9fcceeff42">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;502,351,704&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;576,258&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;17&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      id="h_1567_9bbdebc2_0749_6486_2b9b_aba9d08aa6c6"
      unitRef="USD">502351704</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="h_1551_327fe8b0_3c96_4d9d_992e_976614898f36"
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    <oef:AdvisoryFeesPaidAmt
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      id="h_1552_9ce927d6_1851_4660_8100_d1a3af897fe0"
      unitRef="USD">576258</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="h_1553_cba8a807_f82b_496c_90c5_6cc230a439b3"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
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      contextRef="FY2025_C000088841Member"
      id="t_449_a8d166e9_b33c_5dd8_8803_99af72146192">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic Retirement Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic Retirement Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
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      contextRef="FY2025_C000088841Member"
      id="t_438_c563a0be_b665_f056_43a6_d3229af93e29">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
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      contextRef="FY2025_C000088841Member"
      id="t_439_b399f3af_e97e_db1f_aa15_a79c6d170ab0">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_440_8f540158_0ba4_0557_81e5_991da9305d63">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_432_7e547816_a89c_4795_b4ee_f78ffb42216c">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;43.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1554_3e062364_6d6f_4a8e_b7f8_c2de1e9d6e03"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1555_11469a36_173c_4936_ae86_7f8b44a783bc"
      unitRef="pure">0.439</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1556_1fc875de_1d4c_4dee_8872_3238812afdec"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1557_a23b989c_5934_4c33_a0a1_ead0fb3390e8"
      unitRef="pure">-0.005</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000088841Member"
      id="t_451_0186b777_6c48_3f81_a4ef_0b9e9528e21e">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1568_911742a1_8708_b241_687b_38594d567343"
      unitRef="pure">0.405</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1558_452377bb_d40e_449a_a69d_1decd57f2638"
      unitRef="pure">0.242</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_1559_4d8e7e02_e05e_4c6e_83d1_4b77db57e5af"
      unitRef="pure">0.096</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1560_85aa5cf5_7a3c_4b12_babc_a13765b4bbe1"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1561_0aaa9029_a4df_405e_88e7_3cd2179d3155"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1562_6d84cd31_be9a_42fd_9203_d987b72096fb"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_1563_d4260e83_01a2_40fc_9f9e_4cdc7d745d48"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1564_04c8acf2_aee2_4c97_b1f1_2022761b0603"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_1565_57354c77_4524_4977_9d0d_3eee880faacb"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000088841Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1566_f2016cff_d7e3_4611_ae57_f78f31643bae"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000051483Member"
      id="t_442_18dd6577_84d7_7d69_ad01_0bf9a415b91f">BlackRock LifePath&#xae; Dynamic Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000051483Member"
      id="t_443_9a68ec12_71e6_f005_35ad_04896a0f77bb">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000051483Member"
      id="t_444_57069237_4c7a_1a9e_a22b_1673601b7bd2">LPSAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_433_cd21ff3a_4e0e_45ea_97cf_6300100288cb">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic Retirement Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000051483Member"
      id="t_434_9703970f_f00d_4742_a897_991e2916105c">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_435_ffe60eb9_ae8d_4136_8c90_3e5a18b71b98">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000051483Member"
      id="t_436_f886bcfe_8b5e_49f0_9d15_f710ae186d52">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000051483Member"
      id="t_437_bfd5d9cb_23d9_4082_a85d_829f93aaa947">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_449_fe119461_2e7a_69a6_9d14_2ec9f7fb9d83">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;23&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.22&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000051483Member"
      decimals="INF"
      id="h_1567_662abb9f_3142_4630_990c_1eef3a7f9bde"
      unitRef="USD">23</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000051483Member"
      decimals="4"
      id="h_1568_53678992_1577_4637_80b7_189550161802"
      unitRef="pure">0.0022</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_450_7dff0186_8de8_bc9e_a7f7_9c38e381e96c">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class K Shares returned 12.24%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg U.S. Aggregate Bond Index returned 7.30% and the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37%. The LifePath Dynamic Retirement Fund Custom Benchmark returned 12.68%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_451_ba3c9413_c3b4_473b_f73d_e32265877f8e">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658667.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_452_49dedb2d_144c_9acc_d6b7_8c93b173b901">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.24&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.67&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.68&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic Retirement Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.68&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.13&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.02&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="t_445_fc59e865_8a36_15ce_bc6e_9b21bd079e4b">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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    <oef:AvgAnnlRtrPct
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      id="h_1571_7a6ed8d9_6f7c_4a2d_8f3c_9b01933325d4"
      unitRef="pure">0.0668</oef:AvgAnnlRtrPct>
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    <oef:AvgAnnlRtrPct
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      id="h_1572_bcc97577_4b45_48c5_9f5b_4a53d208e06a"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="h_1573_43112533_00db_4c32_a753_1d3c7207b596"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_BloombergUSAggregateBondC000051483IndexMember"
      decimals="4"
      id="h_1574_9744b955_fe16_495d_8244_3ba10949f281"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_Russell1000C000051483IndexMember"
      id="t_457_236e9536_488e_aff6_c769_70def35fb440">Russell 1000&#xae; Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_1575_942ccb96_5cb8_41de_b394_391971b2f172"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1576_6d1a9426_c98f_48a1_bccd_d49bf03f66fe"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="h_1577_224d79ce_cd72_4123_9e86_8bec03b7e71f"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
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      contextRef="FY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      id="t_458_58de3145_ddeb_da7f_751f_e156b7e384ad">LifePath Dynamic Retirement Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_1578_8d307257_12fd_43a0_9342_4cbd1f57549d"
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    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_1579_f4436ff1_badc_4331_95ce_05c7e12795cf"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2025_LifePathDynamicRetirementFundCustomBenchmarkMember"
      decimals="4"
      id="h_1580_f97c4562_7e52_4b96_84ac_24e106996bd7"
      unitRef="pure">0.0602</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_453_d2120398_852a_0427_dde0_d63344304b4b">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;502,351,704&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;576,258&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;17&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      unitRef="USD">502351704</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000051483Member"
      decimals="INF"
      id="h_1582_c3d37a71_f1ba_47d6_ae6b_3e06ec234c1e"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000051483Member"
      decimals="INF"
      id="h_1583_8137d1d9_5a28_4e17_a76e_0d901e0bc75b"
      unitRef="USD">576258</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000051483Member"
      decimals="4"
      id="h_1584_859adde6_7c4d_49c5_aa5e_f47836a57d6c"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_455_4df72c98_25cf_62fc_8eab_cc8532f711b9">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic Retirement Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic Retirement Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000051483Member"
      id="t_446_4bd8a39e_4d91_e3ac_7b35_e062a8512f92">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_447_3a46edce_3cee_965d_ee9a_afeaf8776ed3">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_448_7e80130f_740c_faa2_6559_9b4be0736555">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_441_e4ea173d_ef32_4749_ba2e_6c9c0033e65d">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;43.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1585_d9e24cca_bd8c_4f6e_a882_904d747956be"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1586_bd6a71ab_d03f_48e5_a16d_1d0e80db5e6c"
      unitRef="pure">0.439</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1587_951c2708_0475_4d64_b62a_a96093457311"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1588_62addb72_4c3d_4bf1_b755_5cd169cbd035"
      unitRef="pure">-0.005</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000051483Member"
      id="t_454_c54b389e_ed45_d2f9_9af3_52c2ff69a7de">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_BlackRockDiversifiedFixedIncomeFundClassKMember"
      decimals="4"
      id="h_1598_f158108c_531d_cf52_e5b2_d77f87a88ed0"
      unitRef="pure">0.405</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1589_20753bf6_8623_40d2_ab08_1df02caddcfd"
      unitRef="pure">0.242</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_1590_994ce297_217b_4dc7_a66f_ffe34c7dff1a"
      unitRef="pure">0.096</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_InternationalTiltsMasterPortfolioMember"
      decimals="4"
      id="h_1591_19c9ef4a_bfc3_417e_9432_e6f84c6b245f"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1592_fa8baa5a_94ed_44c9_9b65_10747fa43fcb"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1593_60082b3a_7f2f_48a9_8c8d_61cae73ef925"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_1594_82682531_eb2f_489c_826a_a4e4e0260f2f"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1595_6d1b0d80_792b_4477_ad49_b631536beb9a"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_1596_5f69223f_91c3_4c28_9ce8_8c1c3582724b"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000051483Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1599_511b05e3_16b5_5f28_029c_cc9d56813c48"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:FundName
      contextRef="FY2025_C000082489Member"
      id="t_451_dfcb1fb2_868e_8f43_4101_0ebf3f7c8a91">BlackRock LifePath&#xae; Dynamic Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2025_C000082489Member"
      id="t_452_42a15df6_56f3_2412_7f87_3f8035a773b4">Class R Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2025_C000082489Member"
      id="t_453_464cc035_c4af_c2c9_84c2_456a26fb7065">LPRRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_442_51adf725_c7d8_4c5d_a238_f378c9db6b79">This annual shareholder report contains important information about BlackRock LifePath&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Dynamic Retirement Fund (the &#x201c;Fund&#x201d;) for the period of January 1, 2025 to December 31, 2025.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2025_C000082489Member"
      id="t_443_218d4d6a_3fce_49d9_85c2_0d909333abb6">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_444_83bcc7e9_6ab3_46dd_9d73_f7c9115b3d0d">You can find additional information about the Fund at &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2025_C000082489Member"
      id="t_445_099f2ca2_7fc0_44c9_aa6a_9294f5cd6141">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2025_C000082489Member"
      id="t_446_0e1e8041_c16f_49e3_8297_2d64f894b277">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_454_1e19058d_e069_b79c_629d_69bad172f2b5">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt; &lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt;&lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: left;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs of a $10,000&lt;br/&gt; investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); text-align: center; padding-top: 2pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0;"&gt;Costs paid as a percentage of a&lt;br/&gt; $10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; font-size: 8pt; line-height: 10pt; text-align: left;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;97&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); padding-top: 4pt; padding-right: 0; padding-bottom: 2pt; padding-left: 0; text-align: center; font-size: 8pt; line-height: 10pt;"&gt;0.92&lt;span&gt;%&lt;/span&gt;&lt;span style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;margin-top:2pt;table-layout:auto;width:100%;border-collapse:collapse"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: 0; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2025_C000082489Member"
      decimals="INF"
      id="h_1598_aaca425c_ea8e_463d_ad10_c7285007bcce"
      unitRef="USD">97</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2025_C000082489Member"
      decimals="4"
      id="h_1599_49bb678a_f08c_4004_a47a_b48b13ffcb96"
      unitRef="pure">0.0092</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_455_4a914832_2506_c038_a4ab_ab0801d4b263">&lt;div style="margin-bottom:0px;"&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;margin-top:0px;"&gt; &lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt; &lt;/div&gt; &lt;/div&gt; &lt;ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 3.5pt; margin-right: 0; margin-bottom: 3.5pt; margin-left: 0; break-inside: avoid;"&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the reporting period ended December 31, 2025, the Fund&#x2019;s Class R Shares returned 11.51%.&lt;/div&gt; &lt;/li&gt; &lt;li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 34px;"&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg U.S. Aggregate Bond Index returned 7.30% and the Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index returned 17.37%. The LifePath Dynamic Retirement Fund Custom Benchmark returned 12.68%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor to absolute performance in the funds furthest from retirement, followed by international equities, BlackRock Tactical Opportunities Fund (a liquid macro strategy), investment-grade bonds, and U.S. real estate investment trusts (REITs).&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;U.S. equities were the top contributor in the funds at and near retirement, followed by investment-grade bonds, international equities, U.S. Treasury Inflation Protected Securities (TIPS), global infrastructure stocks, and BlackRock Tactical Opportunities Fund.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;The funds used derivatives, including financial futures, swaps, and foreign currency transactions, as a means to hedge and/or take outright views on equities, interest rates, credit risk, and/or currencies. The use of derivatives as opposed to physical securities did not have a material impact on performance.&lt;/div&gt; &lt;div style="break-inside:avoid;margin-bottom:3.5pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:normal;font-size:10pt;letter-spacing:normal;text-transform:none;color:rgb(0, 0, 0);margin-bottom:5pt;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;Currency positioning was the primary detractor from performance in the funds furthest from retirement.&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt;In the vintages at and near retirement, currency pair trades were the primary detractor.&lt;/div&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify;color:rgb(0, 0, 0);margin-bottom:3.5pt;"&gt; &lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt; &lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_456_3a86b8db_3ec3_a8ee_fdea_e22a4482b58b">&lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-bottom:5pt;"&gt; &lt;div style="break-inside:avoid;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;Fund performance &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Cumulative performance: January 1, 2016 through December 31, 2025 &lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:0px;margin-bottom:0px;font-kerning:none;font-family:'arial';font-size:9pt;color:rgb(0, 0, 0);"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="margin-top:5pt;margin-bottom:5pt;"&gt; 
&lt;img alt="Fund Performance - Growth of 10K" src="g97567chartimages_6658666.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="padding-left:10pt;margin-bottom:7.2pt;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;text-indent:-10pt;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_457_8763825d_5c0b_fc18_7396_e29f4fd57322">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0; width: auto;"&gt;&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:none;border-bottom-width:initial;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; padding-right: 0; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-bottom: 0; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Class R Shares&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;11.51&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;3.95&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;5.96&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;7.30&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;(0.36&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;2.01&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;17.37&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;13.59&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;14.59&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-top: 2pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; font-kerning: none; text-align: left; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt;"&gt;LifePath Dynamic Retirement Fund Custom Benchmark&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;12.68&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;4.13&lt;/td&gt; 
&lt;td style="padding-left: 0; padding-right: 6pt; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt;"&gt;6.02&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2025_C000082489Member"
      id="t_464_d949671e_7262_36d4_ec8b_dda07e693d2d">Class R Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2025_C000082489Member"
      decimals="4"
      id="h_1600_9a5df350_0992_4e4a_a5e8_a6a595d5207f"
      unitRef="pure">0.1151</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2025_C000082489Member"
      decimals="4"
      id="h_1601_616f082d_e8a8_4993_899c_11bf89756762"
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      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
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      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
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      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
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      id="h_1606_601eeb62_085a_4ef9_8229_8cf891d00a09"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
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      id="h_1608_6618307e_dbb8_4d51_b30c_79cd58778327"
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      id="t_467_9257daa8_bb57_3423_2d79_8c9498af2bf1">LifePath Dynamic Retirement Fund Custom Benchmark</oef:LineGraphAndTableMeasureName>
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      decimals="4"
      id="h_1610_306541c3_10af_4ce4_b238_db836879a370"
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      decimals="4"
      id="h_1611_e4721669_1f43_4228_9bc7_42b6b1788b84"
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    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_458_b45d3aff_1ecc_b74b_1e7f_e65b1c52492c">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; padding-left: 0; padding-right: 0; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-bottom: 1.5pt; margin-bottom: 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; padding-left: 6pt; padding-right: 6pt; font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;502,351,704&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;36&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 0; text-indent: -6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 0;"&gt;&lt;span style="float:none"&gt;$&lt;/span&gt;576,258&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; padding-left: 6pt; padding-right: 6pt; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-bottom: 1.6pt; text-indent: -6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-left: 6pt; padding-right: 6pt; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; width: 12%; padding-top: 1.6pt; padding-bottom: 1.6pt;"&gt;17&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20251231_C000082489Member"
      decimals="INF"
      id="h_1612_4b5b8e7a_2545_42ab_921f_2313f7bff38c"
      unitRef="USD">502351704</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20251231_C000082489Member"
      decimals="INF"
      id="h_1613_05b171f9_98ff_4f30_9360_439ca7bbf59a"
      unitRef="Holding">36</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2025_C000082489Member"
      decimals="INF"
      id="h_1614_dcd6db27_7869_400b_a6d9_d3bc90b29813"
      unitRef="USD">576258</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2025_C000082489Member"
      decimals="4"
      id="h_1615_2eda5971_45c7_4117_b3ec_08f1248076b2"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PriorMarketIndexComparisonTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_468_e77f9d3c_8862_1459_1608_e9a3e6e8c13b">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:6pt;"&gt;The Fund compares its performance to that of a customized weighted index (the &#x201c;LifePath Dynamic Retirement Fund Custom Benchmark&#x201d;) comprised of the Bloomberg U.S. Intermediate Credit Bond Index, Bloomberg U.S. Intermediate Government Bond Index, Bloomberg U.S. Long Credit Bond Index, Bloomberg U.S. Long Government Bond Index, Bloomberg U.S. Securitized: MBS, ABS and CMBS Index, FTSE Nareit All Equity REIT Index, ICE&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; U.S. Treasury 0-5 Year Inflation Linked Bond Index, MSCI ACWI ex USA IMI Index (Net), Russell 1000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index, Russell 2000&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;&#xae;&lt;/sup&gt; Index and S&amp;amp;P Global Infrastructure Index&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;TM&lt;/sup&gt; (Net), which are representative of the asset classes in which the Fund invests. The weightings of the indices in the LifePath Dynamic Retirement Fund Custom Benchmark are adjusted periodically to reflect the investment adviser&#x2019;s evaluation and adjustment of the Fund&#x2019;s asset allocation strategy.&lt;/div&gt;</oef:PriorMarketIndexComparisonTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2025_C000082489Member"
      id="t_460_76a41dba_4ac3_0a70_f054_ac00c28102dd">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_461_834e7160_b7bb_6dfa_978b_79dbb63d1aef">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_462_8133f27c_ada0_e8cc_b8bd_7daaefe755e0">Visit &lt;span style="color:rgb(0, 0, 0);font-weight:bold;text-decoration-line:none;font-family:'arial';font-size:8pt;line-height:10.4pt;text-align:justify"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_450_225a0d6a_54b7_4025_a47f_e23f17f9c41e">&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-weight:bold;font-size:10pt;color:rgb(0, 0, 0);margin-bottom:-0.18pt;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';text-align:justify;font-size:9pt;line-height:11.4pt;color:rgb(0, 0, 0);margin-bottom:0px;"&gt;(as of December 31, 2025)&lt;/div&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 0; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Portfolio composition&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt; width: auto;"&gt;Asset Type&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 6pt;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 6pt; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;50.1&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;43.9&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;6.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;Liabilities in Excess of Other Assets&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;(0.5&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="border-collapse:collapse;break-inside:avoid;width:100%;margin-top:0px"&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; padding-top: 1.6pt; padding-right: 6pt; padding-bottom: 0; padding-left: 0; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: rgb(0, 0, 0);"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(a)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: rgb(0, 0, 0); padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 6pt; padding-bottom: 0; padding-left: 0; width: initial; vertical-align: top; text-indent: 0;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;&#x200b;&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 100%;"&gt; &lt;div style="margin-top:0px;font-kerning:none;font-family:'arial';font-style:normal;font-size:7pt;line-height:9pt;text-align:justify;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;"&gt;Excludes short-term securities.&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_1616_fdd70ff4_f6c4_499e_a3fb_da2da6cfdf08"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_1617_79744775_79aa_4a29_896e_d5310ca18929"
      unitRef="pure">0.439</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_1618_4d45cb87_fd88_4832_8e91_8360d1d4c419"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_1619_d098c0c9_69cf_4c9f_9d82_c307ff8a22c9"
      unitRef="pure">-0.005</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="FY2025_C000082489Member"
      id="t_459_299b1cb8_ac83_7b1e_1c42_c10b13946ede">
&lt;table style="break-inside:avoid;table-layout:auto;width:100%;border-collapse:collapse;margin-top:0px"&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;background-color:rgb(255, 206, 0);border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); margin-top: 0; padding-top: 2pt; padding-right: 6pt; padding-bottom: 1.5pt; padding-left: 0; margin-bottom: 0;"&gt;&lt;strong&gt;Ten largest holdings&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after:avoid;border-bottom-style:solid;border-bottom-width:0.5pt;break-inside:avoid-page;height:auto;font-family:'arial';font-style:italic;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Security&lt;sup style="vertical-align:0.5em;font-size:smaller;line-height:0px"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding-top: 1.6pt; padding-bottom: 0; padding-left: 0;"&gt;Percent of&lt;br/&gt; Net Assets&lt;/td&gt; 
&lt;td style="padding-left: 0; width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Diversified Fixed Income Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;40.5&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;Diversified Equity Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;24.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares 0-5 Year TIPS Bond ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;9.6&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;International Tilts Master Portfolio&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;7.4&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Tactical Opportunities Fund, Class K&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;4.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Core MSCI Emerging Markets ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;3.9&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares Global Infrastructure ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.8&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI EAFE Small-Cap ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;1.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:initial;border-bottom-style:none;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:initial"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; padding-left: 6pt; text-indent: -6pt;"&gt;BlackRock Real Estate Securities Fund&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 0; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 0; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="border-bottom-width:0.5pt;border-bottom-style:solid;break-inside:avoid-page;height:auto;font-family:'arial';font-style:normal;font-size:8pt;line-height:10pt;border-bottom-color:rgb(0, 0, 0)"&gt; 
&lt;td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; padding-left: 6pt; text-indent: -6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="padding-right: 0; break-inside: avoid-page; vertical-align: bottom; text-align: right; padding-top: 2pt; padding-bottom: 1.6pt; padding-left: 0; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;0.2&lt;/td&gt; 
&lt;td style="padding-left: 0; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; padding-top: 1.6pt; padding-right: 0; padding-bottom: 1.6pt; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;span style="visibility:hidden;margin-left:-7pt"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;(b)Excludes short-term securities.</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
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      decimals="4"
      id="h_1630_84759c64_87a9_80fa_fe8a_80d6cc1a4ccb"
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    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_DiversifiedEquityMasterPortfolioMember"
      decimals="4"
      id="h_1620_59e5f754_3586_4c73_8ec6_192519f56ab2"
      unitRef="pure">0.242</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_IShares05YearTIPSBondETFMember"
      decimals="4"
      id="h_1621_6bd0dee7_a75b_462c_b5a6_f3f6d951712e"
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    <oef:PctOfNav
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      decimals="4"
      id="h_1622_2aee6cd6_d77c_4abf_a9aa_6b5fde76c9ef"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_BlackRockTacticalOpportunitiesFundClassKMember"
      decimals="4"
      id="h_1623_0929b873_5c72_49e4_8fed_c329aacea634"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_ISharesCoreMSCIEmergingMarketsETFMember"
      decimals="4"
      id="h_1624_d5eb143d_30b1_44c0_af78_1432709aa0c2"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_ISharesGlobalInfrastructureETFMember"
      decimals="4"
      id="h_1625_65d47fe7_d3de_4331_8265_a1d53e1cc31e"
      unitRef="pure">0.018</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_1626_9909a099_6392_41c3_8ea9_3be077d29aa7"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_BlackRockRealEstateSecuritiesFundMember"
      decimals="4"
      id="h_1627_e41e17d1_8128_4439_85ca_2bc52b2b2003"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20251231_C000082489Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_1628_e8d22597_35ef_4008_9a3c_1da0034913ea"
      unitRef="pure">0.002</oef:PctOfNav>
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        <link:footnote id="f_0007_000001" xlink:label="f_0007_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</link:footnote>
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          xlink:from="h_1022_a629a6ca_4f24_4e22_9e4a_ca513a3ca3a5"
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        <link:footnoteArc
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          xlink:href="#h_1024_f602c430_7c32_4e94_bb59_e0386d099fa9"
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        <link:footnote id="f_0063_000001" xlink:label="f_0063_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</link:footnote>
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        <link:footnoteArc
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          xlink:href="#h_1045_d856b6bf_dabb_474c_973f_ef5601badb49"
          xlink:label="h_1045_d856b6bf_dabb_474c_973f_ef5601badb49"
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        <link:footnote id="f_0063_000002" xlink:label="f_0063_000002" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.</link:footnote>
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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_1045_d856b6bf_dabb_474c_973f_ef5601badb49"
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        <link:loc
          xlink:href="#h_1046_2c852966_728c_4ee2_a0a0_eba1d2bdafc4"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_1046_2c852966_728c_4ee2_a0a0_eba1d2bdafc4"
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        <link:loc
          xlink:href="#h_1047_b5fc8e4d_0a4c_4c2f_8353_f33ef83c83b1"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_1047_b5fc8e4d_0a4c_4c2f_8353_f33ef83c83b1"
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        <link:loc
          xlink:href="#h_1048_6a5fd0ba_07c9_4797_bdd6_c2e810d485e5"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#h_1049_f7ccf305_b14f_4d63_aa06_304c34d6bfb7"
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        <link:footnote id="f_0063_000003" xlink:label="f_0063_000003" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes short-term securities.</link:footnote>
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          xlink:from="h_1049_f7ccf305_b14f_4d63_aa06_304c34d6bfb7"
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          xlink:href="#h_1050_b8152f16_5a46_4181_bff2_e08a9a692509"
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        <link:loc
          xlink:href="#h_1051_577bdf74_bead_42fd_9a0b_42e45432112e"
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          xlink:href="#h_1052_93f4eb07_1094_4534_990a_8c8e20c320d3"
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          xlink:href="#h_1053_bc7aeb0b_7cbc_4d92_bd90_8b99c171f302"
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          xlink:href="#h_1082_e03d001a_7e00_404f_aac3_10098e344eab"
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          xlink:href="#h_1083_bb460fb6_2a37_489c_a64b_2d41c970dc4a"
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        <link:footnote id="f_0017_000004" xlink:label="f_0017_000004" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</link:footnote>
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        <link:footnote id="f_0023_000002" xlink:label="f_0023_000002" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.</link:footnote>
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        <link:loc
          xlink:href="#h_388_903efb74_dd59_41c3_a1f5_a0f04fb61187"
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          xlink:href="#h_390_13506147_ce9a_4970_ae8c_cd3070fddc47"
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          xlink:href="#h_391_718c98f9_37f1_4936_bcf9_d378f09a494d"
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          xlink:href="#h_392_8d3ff834_8e43_49aa_904c_1f9721419a66"
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          xlink:from="h_393_5fda0064_777e_4257_a17e_487698db3d4f"
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          xlink:href="#h_394_14d9f329_a162_4e37_9a93_34e6bfe6b6ae"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#h_395_e2e0e585_9060_4821_8c86_31171afce96e"
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        <link:footnote id="f_0025_000001" xlink:label="f_0025_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</link:footnote>
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          xlink:from="h_395_e2e0e585_9060_4821_8c86_31171afce96e"
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        <link:loc
          xlink:href="#h_396_6c8b66c1_cebf_486b_91a4_8c1b7506ad65"
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        <link:footnoteArc
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          xlink:from="h_396_6c8b66c1_cebf_486b_91a4_8c1b7506ad65"
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        <link:loc
          xlink:href="#h_416_0a62defc_8a5b_4a39_a7c8_ea895d3aa548"
          xlink:label="h_416_0a62defc_8a5b_4a39_a7c8_ea895d3aa548"
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        <link:footnote id="f_0025_000002" xlink:label="f_0025_000002" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.</link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_416_0a62defc_8a5b_4a39_a7c8_ea895d3aa548"
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        <link:loc
          xlink:href="#h_417_e8791306_a2ce_41ec_8c50_cb55f20ea4bb"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_417_e8791306_a2ce_41ec_8c50_cb55f20ea4bb"
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        <link:loc
          xlink:href="#h_418_e5b05800_9d8c_4410_bc93_5faae52b30b8"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_418_e5b05800_9d8c_4410_bc93_5faae52b30b8"
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        <link:loc
          xlink:href="#h_419_f1091709_4a13_4ea9_8d6f_702e1befbe29"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_419_f1091709_4a13_4ea9_8d6f_702e1befbe29"
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        <link:loc
          xlink:href="#h_420_1c52f013_cf60_4c6e_b494_77e44763d791"
          xlink:label="h_420_1c52f013_cf60_4c6e_b494_77e44763d791"
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        <link:footnote id="f_0025_000003" xlink:label="f_0025_000003" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes short-term securities.</link:footnote>
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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_420_1c52f013_cf60_4c6e_b494_77e44763d791"
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        <link:loc
          xlink:href="#h_421_695e332c_cc74_4cdc_b209_194226049438"
          xlink:label="h_421_695e332c_cc74_4cdc_b209_194226049438"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_421_695e332c_cc74_4cdc_b209_194226049438"
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        <link:loc
          xlink:href="#h_422_8da410f4_41b9_4a12_8d2a_62047f0ddd3a"
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        <link:loc
          xlink:href="#h_423_40c4f000_5be9_4994_87d6_04b1425a87b8"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_423_40c4f000_5be9_4994_87d6_04b1425a87b8"
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          xlink:href="#h_424_69a0bd88_94c8_42f2_b685_c283579d09fc"
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          xlink:href="#h_425_0b10bd36_d312_41df_a585_83830622a071"
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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_425_0b10bd36_d312_41df_a585_83830622a071"
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        <link:loc
          xlink:href="#h_426_b2eaca41_e9bb_44f3_9019_c1965ae36624"
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          xlink:href="#h_427_ff77ec20_236c_4469_9178_d25a87139acc"
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          xlink:href="#h_430_5c7cc51d_8363_42c3_9673_386300f961a4"
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        <link:footnote id="f_0027_000001" xlink:label="f_0027_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</link:footnote>
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          xlink:from="h_430_5c7cc51d_8363_42c3_9673_386300f961a4"
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        <link:footnoteArc
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        <link:footnote id="f_0027_000002" xlink:label="f_0027_000002" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.</link:footnote>
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          xlink:href="#h_450_35a81765_a4df_4923_a34d_4a87dab69409"
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          xlink:href="#h_451_a96b0531_d5df_4f71_9826_6a226d4bcea4"
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        <link:footnote id="f_0047_000001" xlink:label="f_0047_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</link:footnote>
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        <link:footnote id="f_0047_000002" xlink:label="f_0047_000002" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus.</link:footnote>
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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_780_9832bf6b_3ef0_4d84_815a_6b410ba0a1a8"
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          xlink:href="#h_782_3128b8a1_a5dc_479b_aac4_45e388114930"
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        <link:footnote id="f_0047_000003" xlink:label="f_0047_000003" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes short-term securities.</link:footnote>
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          xlink:href="#h_785_20aaeb71_f525_456d_a6cc_7e58f6477842"
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          xlink:href="#h_787_706e476d_3af9_49fb_bcd3_84dc894ab874"
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          xlink:href="#h_790_95197207_239f_462b_a1d4_1c8dd12bfb40"
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        <link:footnote id="f_0049_000001" xlink:label="f_0049_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</link:footnote>
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        <link:footnote id="f_0049_000003" xlink:label="f_0049_000003" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Excludes short-term securities.</link:footnote>
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