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&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
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&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
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&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; 
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&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1,274,480,131&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;4,623&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;603&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000244506Member"
      decimals="INF"
      id="h_3_70ec2398_4eb6_49bb_b0d6_e2fe89e5d9de"
      unitRef="USD">1274480131</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000244506Member"
      decimals="INF"
      id="h_4_771c29d8_cc32_46ca_ad66_2a4f930b6035"
      unitRef="Holding">4623</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000244506Member"
      decimals="4"
      id="h_5_e4cbe23d_fcef_45a7_a1a5_0d045ff6e6af"
      unitRef="pure">6.03</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000244506Member"
      id="t_8_66b77086_bb72_41ab_910c_30deacf527d9"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Investment Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of Total&lt;br/&gt;Investments&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;U.S. Government Sponsored Agency Securities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;36.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate Bonds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;23.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;U.S. Treasury Obligations&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;22.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Non-Agency Mortgage-Backed Securities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;10.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Asset-Backed Securities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Foreign Agency Obligations&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Capital Trusts&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Investment Companies&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Municipal Bonds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Common Stocks&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;Other&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;&lt;span class="sec-hidden" style="-sec-ix-hidden:h_26_a914b101_4c88_3ed2_7955_48c73503a7bd"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;AAA/Aaa&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;61.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;15.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BB/Ba&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;B&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;CCC/Caa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;CC&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;C&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;&lt;span class="sec-hidden" style="-sec-ix-hidden:h_22_0c5185d2_99d2_4da2_8d3e_d3ba58500ae7"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;D&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;&lt;span class="sec-hidden" style="-sec-ix-hidden:h_23_a6493799_09a1_46d4_8f03_420b7aec433b"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities, short investments and options, if any.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than 0.1%.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
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&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
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&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Ten largest investment types are presented. Additional investment types are found in Other.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
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    <oef:CreditRatingsSelectionTextBlock
      contextRef="D20251031_20260430_C000244506Member"
      id="t_12_b88cf905_9e4a_ba0d_7f43_b34932489b17">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditRatingsSelectionTextBlock>
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      contextRef="D20251031_20260430_C000244506Member"
      id="t_13_4c4652b3_7bca_fb8e_acac_2191cf7e0fff">The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.</oef:CreditQualityExplanationTextBlock>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_17_367a4be3_0555_b219_0cb3_a1cee1f1e455">BlackRock Diversified Fixed Income Fund</oef:FundName>
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      id="t_18_f4e89f12_9629_3bfc_6cb9_95bc54ea234d">Class K Shares</oef:ClassName>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_19_414c6603_e2cc_ff45_39b8_602e1507b585">BDVFX</dei:TradingSymbol>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_9_8ad1f01e_c097_4c73_ab63_f7726d3df6f0">This semi-annual shareholder report contains important information about BlackRock Diversified Fixed Income Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000244507Member"
      id="t_10_8435d106_a179_4070_8e97_c895ac601894">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_11_2eea8395_755a_4d20_8de0_f1e20c72d15f">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) 537&#x2011;4942.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="D20251031_20260430_C000244507Member"
      id="t_12_c4f0790f_7252_4c08_b088_22bb499d9474">blackrock.com/fundreports</oef:AddlInfoWebsite>
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      id="t_13_e49c2bfd_b13b_4e87_9cc2_1ff1b8e48648">(800) 537&#x2011;4942</oef:AddlInfoPhoneNumber>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_14_96d1b293_3ddf_4aca_94b5_0941f653e392"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.14&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="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
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      decimals="INF"
      id="h_25_11646a46_b087_4dc2_976f_00cc0df64067"
      unitRef="USD">7</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
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      decimals="4"
      id="h_26_059769df_ee02_4bf5_be93_306545d2b578"
      unitRef="pure">0.0014</oef:ExpenseRatioPct>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_15_d11cbcb9_746c_4ad9_9ed2_54f5076717bd"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1,274,480,131&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;4,623&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;603&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000244507Member"
      decimals="INF"
      id="h_27_5b7f9608_d9d9_4a5b_892c_bab06f96560b"
      unitRef="USD">1274480131</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000244507Member"
      decimals="INF"
      id="h_28_858bebe4_f416_4bee_aad7_c3828eafd58d"
      unitRef="Holding">4623</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000244507Member"
      decimals="4"
      id="h_29_92eaf3e1_3017_4a8d_a36f_1a884e341587"
      unitRef="pure">6.03</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000244507Member"
      id="t_16_5b739225_9c8b_4a56_9e58_1f99efa5a76d"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Investment Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of Total&lt;br/&gt;Investments&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;U.S. Government Sponsored Agency Securities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;36.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate Bonds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;23.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;U.S. Treasury Obligations&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;22.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Non-Agency Mortgage-Backed Securities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;10.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Asset-Backed Securities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Foreign Agency Obligations&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Capital Trusts&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Investment Companies&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Municipal Bonds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Common Stocks&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;Other&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;&lt;span class="sec-hidden" style="-sec-ix-hidden:h_39_53c16f04_69f2_410e_bbb2_476ad2586057"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;AAA/Aaa&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;61.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;15.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BB/Ba&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;B&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;CCC/Caa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;CC&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;C&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;&lt;span class="sec-hidden" style="-sec-ix-hidden:h_46_8bed0ff7_9978_4558_98d9_fb99884f3ea8"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;D&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;&lt;span class="sec-hidden" style="-sec-ix-hidden:h_47_6573191c_850d_4d49_ae44_800c26ac20a7"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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;span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities, short investments and options, if any.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than 0.1%.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
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&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Ten largest investment types are presented. Additional investment types are found in Other.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_20_f2b58618_33ff_9c94_1632_0ff169aac798">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditRatingsSelectionTextBlock>
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      contextRef="D20251031_20260430_C000244507Member"
      id="t_21_f3b9b7f3_ddb4_32fa_f653_f9e9d5c4034f">The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.</oef:CreditQualityExplanationTextBlock>
    <oef:FundName
      contextRef="D20251031_20260430_C000220938Member"
      id="t_29_aa496740_9cef_9039_f978_80f8887eba52">BlackRock LifePath&#xae; ESG Index 2030 Fund</oef:FundName>
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      id="t_30_37d0a98d_28bc_205c_cf44_95c16685993e">Institutional Shares</oef:ClassName>
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      contextRef="D20251031_20260430_C000220938Member"
      id="t_31_c3f11954_261e_0ab4_fe64_5527b425473d">LENIX</dei:TradingSymbol>
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      contextRef="D20251031_20260430_C000220938Member"
      id="t_17_1d5ea455_9989_4c8d_81f9_8cc336db1de8">This semi-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; ESG Index 2030 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
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      contextRef="D20251031_20260430_C000220938Member"
      id="t_18_287132fc_967e_417e_b2bb_705aab94c855">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
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      contextRef="D20251031_20260430_C000220938Member"
      id="t_19_befc7f43_1338_4045_8313_eaca6ede43c8">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>
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      contextRef="D20251031_20260430_C000220938Member"
      id="t_20_42a34e54_69db_4c9f_985a_f6f0ec29d2fa">blackrock.com/fundreports</oef:AddlInfoWebsite>
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      id="t_21_f751bea8_9605_4a51_bf52_82644c1c3b9b">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
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      contextRef="D20251031_20260430_C000220938Member"
      id="t_22_55267b80_51d9_4d18_b889_8dec3b36bbf8"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;5&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.09&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
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      decimals="INF"
      id="h_49_d12a47e8_a598_49b3_84f8_fe71c9e72b27"
      unitRef="USD">5</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
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      decimals="4"
      id="h_50_685767ac_8d25_4699_8134_ea23b0b758c0"
      unitRef="pure">0.0009</oef:ExpenseRatioPct>
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      contextRef="D20251031_20260430_C000220938Member"
      id="t_23_a74d7be3_a7c2_4d26_b676_2b8b06157226"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;17,158,052&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;10&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220938Member"
      decimals="INF"
      id="h_51_77933573_bc53_4667_9440_6bb3240ca8d9"
      unitRef="USD">17158052</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220938Member"
      decimals="INF"
      id="h_52_d3be4ead_bacf_440c_a4fa_23c204c09bde"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220938Member"
      decimals="4"
      id="h_53_3ca6ca10_7a26_4e60_a394_2f05446ef55d"
      unitRef="pure">0.10</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220938Member"
      id="t_24_eb1d147a_8e62_4d3a_98d0_892a3c51f63e"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;50.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;48.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;17.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(17.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;41.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;26.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_54_e1d1f0df_a04b_40ac_916a_d14fd0906de1"
      unitRef="pure">0.509</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_55_1c4e26f0_4652_4b88_b1c2_58f3233b3953"
      unitRef="pure">0.489</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_56_90c38f9b_1019_4a22_a210_f3f526abaab5"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_57_865a2e17_d597_434d_9d31_4634407a288e"
      unitRef="pure">-0.172</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220938Member"
      id="t_28_ba815730_0a0b_aeee_a106_01f4d1f56cf0"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;41.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;26.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_58_c1e67e97_fbb7_4262_a8b3_b506b4866853"
      unitRef="pure">0.419</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_59_42ae8e3b_5afa_4b53_8dd7_4224c966708e"
      unitRef="pure">0.265</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_60_bd42aa1f_b113_429e_8965_f327aeb9bfae"
      unitRef="pure">0.098</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_61_316aefca_16bd_46d2_956a_e838db98f21f"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_62_4c3e69c1_2f29_4858_ae5f_185d0a8b61fd"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_63_3c85a7da_e94a_4a1f_82af_06da7372e1f6"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_64_2d921b66_f43a_46bd_acf1_7675cbdaa007"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_65_d796c8fc_c92f_4028_af23_87a602e27fce"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_66_abd8b85b_c5e0_48e3_9c7a_997c6dbcee8b"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220938Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_67_48274d21_75d3_43f1_9505_dfacef3e0631"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220939Member"
      id="t_37_37cf36d7_53d5_ae08_4cc9_bc33b531901c">BlackRock LifePath&#xae; ESG Index 2030 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220939Member"
      id="t_38_fc0d658b_5b9a_6c9b_5904_981c88ca2aff">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220939Member"
      id="t_39_388dd340_2bf0_746a_eb3f_14dc467f5ad1">LENAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220939Member"
      id="t_25_0c4d4a9b_fd65_49aa_9569_be4203bc80ad">This semi-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; ESG Index 2030 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220939Member"
      id="t_26_073af568_b6c3_4285_bc2a_459d5e1f38da">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220939Member"
      id="t_27_1a0ab69d_b9fe_4b4c_9cf5_6e139f46d720">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="D20251031_20260430_C000220939Member"
      id="t_28_d2f0610a_3a54_4fab_8b01_de63a65c3302">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220939Member"
      id="t_29_bf681dd6_a1fd_4a99_b96a_6487f8cb4734">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220939Member"
      id="t_30_6d65fc75_f11f_4575_bf59_932ba1ca497f"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;17&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.34&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220939Member"
      decimals="INF"
      id="h_68_c4402cd9_a679_4a91_8ec0_ab6aa45d26e2"
      unitRef="USD">17</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220939Member"
      decimals="4"
      id="h_69_5b25f0ec_0263_4781_88e5_39030d7a42df"
      unitRef="pure">0.0034</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220939Member"
      id="t_31_55409ec7_a595_42d1_9380_25335ce371c2"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;17,158,052&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;10&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220939Member"
      decimals="INF"
      id="h_70_53daf43d_b607_4df2_97b3_c5f92504919a"
      unitRef="USD">17158052</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220939Member"
      decimals="INF"
      id="h_71_3dc861c3_eec4_449f_83c7_b35b8a2c411d"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220939Member"
      decimals="4"
      id="h_72_eefca398_f230_4284_90df_76d1688b699a"
      unitRef="pure">0.10</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220939Member"
      id="t_32_9725cfb1_8c38_4710_8e4f_7de431b496ee"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;50.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;48.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;17.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(17.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;41.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;26.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_73_c190ea9c_f438_474c_9708_f75872558154"
      unitRef="pure">0.509</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_74_796d6334_466b_45da_8e2b_e552f9e62603"
      unitRef="pure">0.489</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_75_b24bd153_30bc_4f1d_ac6c_143a30172ef0"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_76_b44702b7_ce07_4d59_baef_53d2e1c83449"
      unitRef="pure">-0.172</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220939Member"
      id="t_36_0228ed59_2132_5741_b27d_688ead28bc49"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;41.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;26.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_77_d73cd37e_3a12_43d6_bf32_102a90c9327e"
      unitRef="pure">0.419</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_78_75a60a44_e364_440d_9980_0c42eb32fb5a"
      unitRef="pure">0.265</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_79_f2398e36_b673_4cf5_96c8_c8bc462146f7"
      unitRef="pure">0.098</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_80_7dd0fb50_787b_4abd_885c_14f532781cb1"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_81_d39856e4_a2d8_4689_a82b_7ebe4da64875"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_82_363c6496_be98_4c86_9838_29c1c2b062ba"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_83_2e47afda_f6d3_420f_ad87_cb073ec75c5e"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_84_004d2c7f_fac7_413a_a4dd_231e57a14272"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_85_b8530ecd_3c20_45d4_9411_c777937ad24e"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220939Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_86_43eefb33_d111_4697_9aa6_d59e8ff9cc5d"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220940Member"
      id="t_44_0752eecc_48e9_39c8_051a_91103808bdc6">BlackRock LifePath&#xae; ESG Index 2030 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220940Member"
      id="t_45_16893f33_6c21_5c3a_fd17_329818f58a23">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220940Member"
      id="t_46_83a41eb0_a4cf_f6ef_a9e9_3db1ba1434f2">LENKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220940Member"
      id="t_33_775e0eff_e8d7_4000_9f1a_a4b060495d27">This semi-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; ESG Index 2030 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220940Member"
      id="t_34_6b7b382d_6923_4813_bf3d_7a684e1c4480">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220940Member"
      id="t_35_87c39758_0d2e_4c54_a3cf_edd3b81c9a9e">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="D20251031_20260430_C000220940Member"
      id="t_36_b421bb8b_e17a_46a2_b8bc_e406810cc926">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220940Member"
      id="t_37_16d71fa2_a94c_4fd0_93dd_68f56a404154">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220940Member"
      id="t_38_72c4c929_ac8e_4977_ac3e_d64597c2ebb6"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;2&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.04&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220940Member"
      decimals="INF"
      id="h_87_95e45e3e_8f3a_413f_9808_57e4bf8eef44"
      unitRef="USD">2</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220940Member"
      decimals="4"
      id="h_88_f2407e2d_dd86_4ee3_a9d5_d15e390c741d"
      unitRef="pure">0.0004</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220940Member"
      id="t_39_40bba6b0_e4c0_4be4_9aec_ef2ac70c5df3"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;17,158,052&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;10&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220940Member"
      decimals="INF"
      id="h_89_8726e5de_106d_48d3_a12d_1fff4a6b4fce"
      unitRef="USD">17158052</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220940Member"
      decimals="INF"
      id="h_90_7f5a556c_9af4_48d5_87a1_d1d1262c5e07"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220940Member"
      decimals="4"
      id="h_91_8da584b1_c74f_490b_9bd4_37189cac0d79"
      unitRef="pure">0.10</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220940Member"
      id="t_42_68c124f1_d0aa_b03c_51a5_d323bf6d1e99"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;50.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;48.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;17.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(17.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;41.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;26.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_92_19eaa6cc_d43f_4267_b7a4_9f726678335b"
      unitRef="pure">0.509</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_93_eb1aa510_af09_42d8_a409_3cf8a38f31e5"
      unitRef="pure">0.489</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_94_fd3110ff_fa33_460a_abbd_a8bd086a6036"
      unitRef="pure">0.174</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_95_b3d6eca8_0624_42a8_bfec_28f0697cfdba"
      unitRef="pure">-0.172</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220940Member"
      id="t_43_f0c3f90f_2bdc_3e57_3c57_6907aa373804"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;41.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;26.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_96_11fac548_d960_467a_b56d_2bc3024b1ee7"
      unitRef="pure">0.419</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_97_b21a4ba2_b480_4334_8cc2_73cbbc5398d1"
      unitRef="pure">0.265</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_98_305c175d_c52a_46c4_812e_3d45d1990e2c"
      unitRef="pure">0.098</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_99_5ff60ecd_ef15_4659_9347_38d7427ac1f2"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_100_d31d02e8_2c99_45cb_9303_08297844fe99"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_101_548ce737_9862_41c3_8a19_ace4472ea6ae"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_102_9cab8f54_d480_4518_a778_d38f495c97be"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_103_78091149_065e_4f09_8cc3_5405da1d69ef"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_104_df2bed55_2c49_4b97_954f_29d777e11abb"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220940Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_105_907c7a77_85d9_44f8_8348_555989ddeb7f"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220941Member"
      id="t_50_2f74ff8f_61e8_c807_417e_06e52480d622">BlackRock LifePath&#xae; ESG Index 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220941Member"
      id="t_51_7d7048ff_1143_13b3_a57f_0d24b4d814a2">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220941Member"
      id="t_52_83d31ff0_0381_90b1_5a1f_8d25d753d791">LEJIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220941Member"
      id="t_41_5188785f_bf50_4d69_b4a9_ea303f63f1d7">This semi-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; ESG Index 2035 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220941Member"
      id="t_42_eff0954e_fff9_47e8_97f0_c670b3a61b22">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220941Member"
      id="t_43_8a045b79_8872_475e_8662_84e1da8f565c">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="D20251031_20260430_C000220941Member"
      id="t_44_6ff00368_0eee_4d23_a641_de53e2e2022e">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220941Member"
      id="t_45_c2b588a8_f08b_4f77_bd14_a964ec1665ba">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220941Member"
      id="t_46_c5bc800c_aa75_4cac_b6a3_f57ed4593c13"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;4&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.08&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220941Member"
      decimals="INF"
      id="h_106_f74e8049_e63f_4b7b_a13e_96d87d17636a"
      unitRef="USD">4</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220941Member"
      decimals="4"
      id="h_107_538de03e_075b_4009_bddf_c15403fc3e17"
      unitRef="pure">0.0008</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220941Member"
      id="t_47_7b41b61e_f753_4ea5_8b12_93e6119eee60"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16,943,994&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;10&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220941Member"
      decimals="INF"
      id="h_108_2ad162c8_3fe9_45b4_baea_49f95db42609"
      unitRef="USD">16943994</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220941Member"
      decimals="INF"
      id="h_109_91f1e5b3_7d36_4f39_8562_0d4f87bac6c5"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220941Member"
      decimals="4"
      id="h_110_51ebce2e_491d_4f6a_803b_6807599f8473"
      unitRef="pure">0.10</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220941Member"
      id="t_48_aec15626_9237_b537_95d5_b078d50332b9"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;62.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;37.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;31.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(30.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;32.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;30.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;12.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_111_1e1e416d_989a_47c4_9e89_0e90fd5c9452"
      unitRef="pure">0.628</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_112_d51db3a4_41d1_49fc_9f0d_32a77874bb35"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_113_20833ab6_958b_4d3f_9527_5276e148c621"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_114_4d00e17c_c387_4edb_802e_a9e6b2d8daa7"
      unitRef="pure">-0.309</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220941Member"
      id="t_49_17a29431_dbc2_bdda_5b28_8dd5ad035e91"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;32.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;30.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;12.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_115_25f5cf83_62ab_436f_8bda_353d09cc707d"
      unitRef="pure">0.325</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_116_14001c10_d95b_4e91_9b72_ba26c7b155f2"
      unitRef="pure">0.308</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_117_b6d35343_52f3_4e0a_9b36_d4c50a1a42e5"
      unitRef="pure">0.122</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_118_c81bf89e_311b_43f7_9be1_4c947101b87e"
      unitRef="pure">0.066</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_119_e45420b3_fb77_46c6_9a15_6685f2029a63"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_120_2a709edc_4a2f_484b_96e2_c56325ee111b"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_121_fcf4f9c7_badc_4a87_bb93_3ff1162455df"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_122_b2dc443f_9a9e_4bd2_bd5b_795ed5a9aa80"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_123_02f337a9_b894_4233_b084_39ac68f60065"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220941Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_124_42141337_a355_4db9_93d8_db679be8d0e0"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220942Member"
      id="t_61_0bb526bd_d7ef_6623_34b6_4ca20ddd1770">BlackRock LifePath&#xae; ESG Index 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220942Member"
      id="t_62_01478544_e911_e670_c857_ef7fd9ac3de1">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220942Member"
      id="t_63_5790d2a3_21e5_f821_9ea1_bc8189d96430">LEJAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220942Member"
      id="t_49_5821d36d_a02b_4dc4_8006_96b4d81676dc">This semi-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; ESG Index 2035 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220942Member"
      id="t_50_8c1209a4_707c_4af8_835f_1ac489e45b4c">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220942Member"
      id="t_51_8d20ce89_233c_43de_98b8_d372253f1fb5">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="D20251031_20260430_C000220942Member"
      id="t_52_f545375a_8a8a_4dc3_a3e4_fb8d198356a0">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220942Member"
      id="t_53_b74bae87_1940_4b35_a05f_a1712baa5ec6">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220942Member"
      id="t_54_f268347a_926d_4f3b_b0b1_851ad9e3d71d"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;17&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.33&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220942Member"
      decimals="INF"
      id="h_125_d7673b12_730f_427b_a6af_4ae1d25e1ca9"
      unitRef="USD">17</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220942Member"
      decimals="4"
      id="h_126_8bcb0364_60c5_45b1_b7a7_ea72a96b4026"
      unitRef="pure">0.0033</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220942Member"
      id="t_55_d9f71687_80f9_4da0_bc37_c59b6f1cb087"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16,943,994&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;10&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220942Member"
      decimals="INF"
      id="h_127_e60ab849_1a8f_4c0a_8f9f_d260ef2317b8"
      unitRef="USD">16943994</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220942Member"
      decimals="INF"
      id="h_128_ecdfc578_0faf_46fe_b90e_4d11a500f534"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220942Member"
      decimals="4"
      id="h_129_4b96a4bf_df10_4e46_a694_46058f6d5784"
      unitRef="pure">0.10</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220942Member"
      id="t_56_3856666f_ed07_4d01_afc5_1fb4f0bce163"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;62.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;37.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;31.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(30.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;32.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;30.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;12.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_130_00669bb3_6839_4de7_8a54_c7b2618e65ae"
      unitRef="pure">0.628</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_131_f3de0d47_41fe_4594_b5a8_b9eaaebf24b6"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_132_d5e690f2_f132_41d5_a68b_60ec481d9857"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_133_05a3f4c7_c99b_4089_b37b_ac4008d6a1ad"
      unitRef="pure">-0.309</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220942Member"
      id="t_60_29a64329_f4d8_1286_0407_6cd69b7a0b52"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;32.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;30.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;12.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_134_19e25260_0652_4a46_86a6_59fae6d2ffe4"
      unitRef="pure">0.325</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_135_278a5c34_4c5f_4505_b865_cc6e94784f95"
      unitRef="pure">0.308</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_136_0643a247_1614_4135_971b_8f6d0834da45"
      unitRef="pure">0.122</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_137_085dff79_cd07_45b3_b058_14737cde93f6"
      unitRef="pure">0.066</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_138_3a77c7ff_194f_4cec_84c9_dc326379d9e0"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_139_57da45f5_0eb5_4a06_84e7_af4eacf94d64"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_140_8f9c5b55_47db_4c47_aad5_41f5dbc80fd6"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_141_1bcd0630_0f3d_4023_9bf8_ad5ac64987a4"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_142_6fd54788_fe30_489d_96a7_0f94401c47ba"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220942Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_143_2c7d0ecb_1ded_47d1_9c6f_4d903afaca16"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220943Member"
      id="t_65_5f433f1c_7fe7_091b_76a5_88568b292d08">BlackRock LifePath&#xae; ESG Index 2035 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220943Member"
      id="t_66_e9a0e897_2fa1_72c1_ef9e_9706de9e02d5">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220943Member"
      id="t_67_6ab04332_e279_907b_3274_ea20f5c3bec4">LEJKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220943Member"
      id="t_57_342af9fb_29f5_43d8_ac74_e134694715e1">This semi-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; ESG Index 2035 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220943Member"
      id="t_58_64037d4e_7075_4779_9000_ed88cbda5986">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220943Member"
      id="t_59_681d02ed_118d_4f5b_bd9c_d0874dc339dc">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="D20251031_20260430_C000220943Member"
      id="t_60_f575b41d_669c_4e38_92f8_3fa89a0491b6">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220943Member"
      id="t_61_c4026ae4_6072_4f8b_bd6c_5ed400cb8f3c">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220943Member"
      id="t_62_22ab4413_9dae_4662_937d_b82acfde8223"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;2&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.03&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220943Member"
      decimals="INF"
      id="h_144_6e0c0c0e_c3f0_4262_9872_16241b725097"
      unitRef="USD">2</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220943Member"
      decimals="4"
      id="h_145_6ac03cb5_45d1_4b1e_a57e_b1da02390eac"
      unitRef="pure">0.0003</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220943Member"
      id="t_63_76e3ad36_10f8_4736_ad68_77ffac097625"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16,943,994&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;10&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220943Member"
      decimals="INF"
      id="h_146_2e958deb_b6a5_4deb_a080_870ea05918bf"
      unitRef="USD">16943994</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220943Member"
      decimals="INF"
      id="h_147_700814f4_c5d4_46db_a206_9ab6328116af"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220943Member"
      decimals="4"
      id="h_148_dca4279a_055f_40c4_82f0_24f333386ed7"
      unitRef="pure">0.10</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220943Member"
      id="t_64_6221704b_0a70_49e8_aa1c_06725de2abf1"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;62.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;37.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;31.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(30.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;32.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;30.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;12.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_149_447641a6_5866_45ec_b3fa_849caa6348c3"
      unitRef="pure">0.628</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_150_b928fba6_1035_4b25_ad70_a48e387e3851"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_151_f12d7ca0_0317_483b_a19d_0de4a0ec05b5"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_152_3d8e1bbb_6640_440b_98b5_8e033c31b9b4"
      unitRef="pure">-0.309</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220943Member"
      id="t_68_a7fdc52d_0509_40d8_43ab_c9df6fe01c51"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;32.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;30.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;12.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_153_c475c68c_688d_4d3d_8a32_102bd30c968b"
      unitRef="pure">0.325</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_154_88b8f7aa_6350_4708_8944_14ec82637052"
      unitRef="pure">0.308</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_155_5fbb2157_5ee3_4a8e_8e39_43c43e483913"
      unitRef="pure">0.122</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_156_f3bfce5f_c703_4027_9a17_a8cac1ec47a3"
      unitRef="pure">0.066</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_157_085424f5_fa5e_46fa_99f5_07392fb326d5"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_158_39414f90_8711_4c22_a9b1_cced0f80c4dc"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_159_1cd6a2fe_97c9_4c99_a3c4_1c2437ab26e1"
      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_160_4fbdcf0e_0d8c_4a23_96c9_568eb4ccf4b8"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_161_529d964e_b9e6_4776_baf2_bc4c10472733"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220943Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_162_88b66b22_b490_4939_8107_3102cac3e492"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220944Member"
      id="t_74_d34a59b8_b3dc_587f_8c8f_3d9f2b7e6aab">BlackRock LifePath&#xae; ESG Index 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220944Member"
      id="t_75_a28273ef_7611_d6e2_2541_92ff511e5f6e">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220944Member"
      id="t_76_6ca134a5_cb79_e5db_285b_7c8101d8bb9d">LEKIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220944Member"
      id="t_65_8360d907_1771_4277_a38b_9553d30d5d63">This semi-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; ESG Index 2040 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220944Member"
      id="t_66_ab926850_41f9_44a8_bc7a_3145601ef448">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220944Member"
      id="t_67_e663bf96_9acc_4d2b_b8b0_cd75e91d3486">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="D20251031_20260430_C000220944Member"
      id="t_68_0a48ffab_3a19_45a3_8722_0a1a2df99414">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220944Member"
      id="t_69_7de60ca9_4b74_4234_92c3_d18e9b348377">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220944Member"
      id="t_70_8e7ce25a_1eae_4740_8ed8_cabb99f979c1"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;4&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.07&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220944Member"
      decimals="INF"
      id="h_163_daed1aa8_6984_4ab3_9a76_07d4a65645ba"
      unitRef="USD">4</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220944Member"
      decimals="4"
      id="h_164_70924b9a_08a7_4f7e_8887_dc5f0dc0db35"
      unitRef="pure">0.0007</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220944Member"
      id="t_71_4e90a522_32ba_49da_98c2_aba58de7d478"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;28,175,319&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;8&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220944Member"
      decimals="INF"
      id="h_165_e08c426b_47b0_42a8_beb8_ac1f8277ceb6"
      unitRef="USD">28175319</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220944Member"
      decimals="INF"
      id="h_166_7681ae0b_01b4_443b_a1f5_e7742a8de5d5"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220944Member"
      decimals="4"
      id="h_167_a6315e3b_bd4c_4389_92da_b80a87dfcd6b"
      unitRef="pure">0.08</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220944Member"
      id="t_72_8773ebcb_74f4_4fc9_8eeb_8c7f4eda8c0f"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;74.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;14.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;8.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_168_d1d2b087_358e_4c2e_a7c1_df3f24ea32b5"
      unitRef="pure">0.745</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_169_30d25e3a_556d_4075_9f2b_0402d42ce4df"
      unitRef="pure">0.253</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_170_91334e8e_9d7e_4f13_86f9_f7f53b9243de"
      unitRef="pure">0.183</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_171_46b7049d_6b6b_48fb_a9cf_5e1fe434fd12"
      unitRef="pure">-0.181</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220944Member"
      id="t_73_f45326b5_9d53_a11f_1b58_07cd758756d3"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;14.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;8.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_172_2b0a5e43_e335_4569_9a68_d7309e38de8d"
      unitRef="pure">0.382</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_173_3eb90401_2a7e_4012_bf3d_6ebaacbd0de3"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_174_e8c0c0fa_aed4_4928_973b_552a2f927a45"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_175_dd94d29c_b252_4631_83d2_1705aedb8090"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_176_95e66fa2_0be6_4084_9727_4cd90bcad683"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_177_23fe0109_3d80_4b16_9283_d4b0fe3dda11"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_178_1c62f0b3_1e60_4a68_83aa_cd540514f6f5"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_179_8471b1a1_7e00_4128_a647_5572b1de8df6"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_180_61fb2bde_ce98_40d1_85b4_a7cdac690502"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220944Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_181_0d139727_01df_4cd3_99d6_c933a83504d4"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220946Member"
      id="t_81_09c853c0_dd08_0744_55e4_0d7bed75cd07">BlackRock LifePath&#xae; ESG Index 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220946Member"
      id="t_82_fb3f5b40_cbfe_a66a_5b3d_747a37edac47">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220946Member"
      id="t_83_185da727_7d2b_3332_b2ad_6fda1dc680f8">LEKAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220946Member"
      id="t_73_7addafc9_561d_4846_b5bf_d0da931d51c8">This semi-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; ESG Index 2040 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220946Member"
      id="t_74_c90f2ac3_e946_401b_84e0_b03056c22c62">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220946Member"
      id="t_75_4e27daa7_e736_45f0_920e_38b5a56d4b3e">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="D20251031_20260430_C000220946Member"
      id="t_76_7c850272_0028_4193_986c_80e0a93f3b43">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220946Member"
      id="t_77_aa986d70_55bc_4827_abf3_b1038007e716">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220946Member"
      id="t_78_756f40e3_bf23_44af_bc7d_2e547b94917a"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.32&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220946Member"
      decimals="INF"
      id="h_182_bd70aa5b_2c9a_4f1a_b50f_fc876b821f27"
      unitRef="USD">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220946Member"
      decimals="4"
      id="h_183_ac9c7246_17cf_4591_8aac_7d7740307128"
      unitRef="pure">0.0032</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220946Member"
      id="t_79_1fe35ec1_b9ea_40b8_bf4b_c740c78cc562"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;28,175,319&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;8&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220946Member"
      decimals="INF"
      id="h_184_9f4fb8a2_fb73_4fbb_a1a2_9fad7785c138"
      unitRef="USD">28175319</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220946Member"
      decimals="INF"
      id="h_185_9491b2c9_36c4_4252_af66_35c880593e22"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220946Member"
      decimals="4"
      id="h_186_28ac2de2_7b7b_433d_8a7a_bf5a28965774"
      unitRef="pure">0.08</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220946Member"
      id="t_80_f796d59e_8eec_49ee_85c2_5c1c2be43a14"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;74.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;14.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;8.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_187_8998b9c1_30ff_465f_aa0e_a6a133bc3f45"
      unitRef="pure">0.745</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_188_f1f66848_fafd_470e_8305_d47b10547ad9"
      unitRef="pure">0.253</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_189_4fb18244_7e76_414e_9275_b105bf223f84"
      unitRef="pure">0.183</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_190_e4c1a86f_461f_4ad7_b24f_1f1ca44b843a"
      unitRef="pure">-0.181</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220946Member"
      id="t_84_4ae4ac69_0633_fb3d_fb76_77fdfa553965"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;14.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;8.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_191_c5641ce1_eb71_4b60_9a99_34d2513897b2"
      unitRef="pure">0.382</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_192_f06dcb5b_aaa3_4e8a_ad17_b6cbc964702a"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_193_d6ab889c_7241_45f8_b666_13f231433553"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_194_f2318683_a7a2_4b4b_96b9_fbf9b673cad7"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_195_c50eaf6a_aed7_4648_a21a_2caa769e81a6"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_196_cd1ece17_5baa_43fa_b080_812047683864"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_197_724550e5_64de_4a76_906c_8b8e52fbedbe"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_198_0f8d94a2_ec63_4068_886e_aaee057fa93c"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_199_5a3249de_ab06_476a_a7d0_c7b5abd9b6b0"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220946Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_200_2901d15b_e8a3_415f_9235_16c0cc4fb123"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220945Member"
      id="t_89_c824bed5_6982_7574_4149_02792d27cb78">BlackRock LifePath&#xae; ESG Index 2040 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220945Member"
      id="t_90_9f807197_21cd_d534_d00e_6abbdefe5c4b">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220945Member"
      id="t_91_383068ba_2696_9137_f982_326d722852f2">LEKKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220945Member"
      id="t_81_3ac51632_28cc_4210_ad3e_6db43a4c483e">This semi-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; ESG Index 2040 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220945Member"
      id="t_82_030e7b3e_b213_4c87_890b_22bc0994ac2f">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220945Member"
      id="t_83_6beb3da7_5fbe_422e_bc1b_93decd99ab7a">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="D20251031_20260430_C000220945Member"
      id="t_84_b08c28c2_68a9_432b_8ec3_a56719a0877a">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220945Member"
      id="t_85_0e4fa471_e717_473c_93f3_28d55c0b686b">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220945Member"
      id="t_86_af174069_a300_4787_8de2_45ba4f334210"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.02&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220945Member"
      decimals="INF"
      id="h_201_e1e2ef6f_ae88_4bdd_b296_07eaa7968b77"
      unitRef="USD">1</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220945Member"
      decimals="4"
      id="h_202_6a2c26af_b689_4f25_b4cf_831b7c631f83"
      unitRef="pure">0.0002</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220945Member"
      id="t_87_ac6b6eca_e3a2_4af6_ac49_91b2e55f4825"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;28,175,319&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;8&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220945Member"
      decimals="INF"
      id="h_203_0b0a4cf9_e006_4674_88c5_7209f15aa8aa"
      unitRef="USD">28175319</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220945Member"
      decimals="INF"
      id="h_204_cff02d47_dc0a_4405_a86c_f7423e5b93c1"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220945Member"
      decimals="4"
      id="h_205_8dbe1a39_3b7b_44a6_bbcf_4c05c866b33f"
      unitRef="pure">0.08</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220945Member"
      id="t_88_73cf7619_ea15_4026_a66d_6b3d3856b782"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;74.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;14.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;8.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_206_acf8c19a_ee4d_4948_8b5b_1ed0afb47be0"
      unitRef="pure">0.745</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_207_0fb221a7_7d18_4ec7_a636_c2bea5fd006d"
      unitRef="pure">0.253</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_208_ba973075_8418_448a_9448_f6d053e17f46"
      unitRef="pure">0.183</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_209_7a9ae5ae_a371_4dbe_8916_f80c59eca070"
      unitRef="pure">-0.181</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220945Member"
      id="t_92_97bb093e_c85d_217b_a53c_16af32a33fc7">
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;14.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;8.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_210_129f81f4_23d4_42f9_8cf5_0547d37dde02"
      unitRef="pure">0.382</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_211_a18854c9_51f2_41c6_b90c_36a2032e0a43"
      unitRef="pure">0.205</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_212_af9bcbad_54f6_40d4_a2a9_a11a4358c537"
      unitRef="pure">0.147</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_213_2260625f_5e79_45bb_8d2f_2122e58fa88c"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_214_ac02ff6f_edb9_4f13_8c88_577023a3eecb"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_215_86a7fdd8_63e5_4ebf_80a0_a133fb8ace38"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_216_b6b2c4e8_3dcf_44d0_81de_491bf54ffb02"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_217_e0f2f275_5dde_47f5_9fa0_52512273adf7"
      unitRef="pure">0.024</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_218_9f48f5d9_e970_4a8b_ac85_65634a03276d"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220945Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_219_d1b65794_aa5d_4cc6_9177_617bf6846823"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220948Member"
      id="t_97_67256c2a_190e_1e9b_72df_1cdcf5fb7f14">BlackRock LifePath&#xae; ESG Index 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220948Member"
      id="t_98_a9b85ae9_9557_4dea_3ec5_c3ed81c34a04">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220948Member"
      id="t_99_7fe670d9_116b_e432_397a_7e8fb3907bb2">LEHIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220948Member"
      id="t_89_bf27e13f_7e62_4313_9d6c_183f97b6d34c">This semi-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; ESG Index 2045 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220948Member"
      id="t_90_665c2041_5258_4986_8bc7_17336fcdd1ea">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220948Member"
      id="t_91_0a1a8f5b_abbf_4d8e_a5ba_f2b8de9932c5">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="D20251031_20260430_C000220948Member"
      id="t_92_0c86300c_8c0c_45e5_9537_8278e69fbaae">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220948Member"
      id="t_93_9dcf615f_cb02_44eb_bf3e_4d1f8ebe34bf">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220948Member"
      id="t_94_8c848de6_e453_4403_b91e_90947459da34"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.06&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220948Member"
      decimals="INF"
      id="h_220_f9657aaa_88aa_494f_9ba8_ada561236ce2"
      unitRef="USD">3</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220948Member"
      decimals="4"
      id="h_221_ff692d4f_e51a_4dd9_9150_30e15fae5bbc"
      unitRef="pure">0.0006</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220948Member"
      id="t_95_f06affc7_ca2e_4093_acdf_00ea183f9794"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;24,106,800&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;9&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220948Member"
      decimals="INF"
      id="h_222_286638ed_6553_415d_b205_96137a6454f2"
      unitRef="USD">24106800</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220948Member"
      decimals="INF"
      id="h_223_80ce946e_22b9_4902_bffa_03894afe3dd0"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220948Member"
      decimals="4"
      id="h_224_e1d9ac4a_5e50_42ae_9e38_b8720064caac"
      unitRef="pure">0.09</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220948Member"
      id="t_96_24e5b10c_2b86_476f_be8a_cb584aecf6fb"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;84.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;14.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(25.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;43.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;16.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;11.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_225_de257ba6_ad0b_495f_b5ab_0962ba76cba0"
      unitRef="pure">0.849</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_226_a6c25f5d_d2ab_4531_8381_85c5b4fe9668"
      unitRef="pure">0.254</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_227_caf99a57_7b18_4c23_bdea_b27ddcb048a8"
      unitRef="pure">0.149</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_228_8c728221_4c9a_454f_b6ce_ae02e368180d"
      unitRef="pure">-0.252</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220948Member"
      id="t_100_3fb4e396_5a3f_fbc2_4152_3269fd1988ac">
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;43.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;16.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;11.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_229_0e78bd9f_82b3_4c7d_a632_85b8af7d6d4c"
      unitRef="pure">0.435</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_230_4c3792fb_9b65_43af_b573_6c2ea6d16dde"
      unitRef="pure">0.169</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_231_6608be80_7c10_4229_8186_8849e4b1cbe7"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_232_79ceb80b_e6ac_4af7_828d_5e5a9e8dfa06"
      unitRef="pure">0.091</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_233_13047478_8577_4419_8be0_ffc175aa198c"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_234_88bbafb9_5c72_4ed2_9222_a9cc2602258f"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_235_83b5553d_d74c_4f32_8a11_acb9944a5737"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_236_f83c9ae4_21e3_4677_b7a6_d465e3963bfb"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_237_e918a85f_822a_4505_9272_2e118620adaa"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220948Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_238_b3595a8c_edaf_449a_af6a_69f0e60bb860"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220947Member"
      id="t_105_97abd87c_2112_a506_8154_6182328db96e">BlackRock LifePath&#xae; ESG Index 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220947Member"
      id="t_106_72002317_3685_18eb_f1fa_6b537d8e9051">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220947Member"
      id="t_107_4aef3a37_80f5_32a0_caf4_05c7450178af">LEHAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220947Member"
      id="t_97_61b52e99_6130_4992_aa46_30e585b39f23">This semi-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; ESG Index 2045 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220947Member"
      id="t_98_ee4ee8f3_3aa0_4206_aae9_42dae74b529c">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220947Member"
      id="t_99_5e87f357_a6da_4b81_ad07_ee5f2acd9846">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="D20251031_20260430_C000220947Member"
      id="t_100_b0044b0a_ec96_4a90_8322_221f3f4b37f3">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220947Member"
      id="t_101_c21632c9_4628_4c8b_b1fb_3512217ae6a1">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220947Member"
      id="t_102_0d522153_1ecb_48fa_b94b_ce71995c32b9"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.31&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220947Member"
      decimals="INF"
      id="h_239_9130f826_74c0_40aa_82a6_71089d638201"
      unitRef="USD">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220947Member"
      decimals="4"
      id="h_240_9d34d6a8_d272_4a7a_9044_c5f1d4bb0c4f"
      unitRef="pure">0.0031</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220947Member"
      id="t_103_88388fdd_b710_4ed2_af88_257e2c0f1eb1"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;24,106,800&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;9&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220947Member"
      decimals="INF"
      id="h_241_df6873d5_3ed3_4689_9b84_24327161e793"
      unitRef="USD">24106800</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220947Member"
      decimals="INF"
      id="h_242_5ffe3108_d93e_47e9_bdbe_46c51b3a7c19"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220947Member"
      decimals="4"
      id="h_243_de686b79_9808_4fd1_8d79_3c5dcaca64e3"
      unitRef="pure">0.09</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220947Member"
      id="t_104_88db6054_841b_4b96_8a77_20b7a15f783b"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;84.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;14.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(25.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;43.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;16.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;11.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_244_c0e5527a_c7ed_45c0_98b3_98f2710f34ae"
      unitRef="pure">0.849</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_245_801b1528_75f9_45ff_93d7_56b2f8aa8c45"
      unitRef="pure">0.254</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_246_c99064b8_238d_4a29_938d_a649afd1984a"
      unitRef="pure">0.149</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_247_fa5c8cbc_165d_4ab2_9c4e_b68eb69459a0"
      unitRef="pure">-0.252</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220947Member"
      id="t_108_1e9f6b25_b2a2_1950_0668_4f2f77399136"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;43.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;16.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;11.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_248_7c46c2d6_6223_4a09_9b8e_1d8b6eff008e"
      unitRef="pure">0.435</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_249_301c99b8_4c48_4004_ab5c_05a802da120d"
      unitRef="pure">0.169</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_250_04e69bc8_4a5c_411b_baab_e23884a3b429"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_251_565fbb9d_392d_48c0_9ac7_defcb46c8f92"
      unitRef="pure">0.091</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_252_404adb87_86ed_41b1_8d68_3411cecb8a95"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_253_60e3e62f_63dd_426c_86b8_f27b5087d863"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_254_98702f16_82a8_4c6f_9792_abbd52172120"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_255_09a14828_32a3_4597_9214_755afd0cb2b2"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_256_ba637d41_c554_4dca_94c2_2e1480b951ae"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220947Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_257_33716d8f_622a_4a1f_9a2c_c4e88cd0f61d"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220949Member"
      id="t_113_356ee707_8e74_8db2_61d7_648ada430295">BlackRock LifePath&#xae; ESG Index 2045 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220949Member"
      id="t_114_46af1b11_95c3_0436_7a2a_52a985f7ec78">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220949Member"
      id="t_115_ac3daefb_5ba2_0876_a553_13e5271a6b00">LEHKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220949Member"
      id="t_105_24434eff_6a1b_4857_8ce1_10b4719763b6">This semi-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; ESG Index 2045 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220949Member"
      id="t_106_9b568043_50e4_4219_8dd5_c8ed43cadbf3">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220949Member"
      id="t_107_1cd97092_2fb6_45de_8d48_fa6a3a2c816e">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="D20251031_20260430_C000220949Member"
      id="t_108_1e3706f2_e792_4f36_9b4b_b42c888cfe73">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220949Member"
      id="t_109_02f0f46f_6546_492a_b782_d3e82f4ef9ce">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220949Member"
      id="t_110_f41ea3d2_272c_4e05_b64b_ef33f4630c8f"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.01&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220949Member"
      decimals="INF"
      id="h_258_8183300a_34f1_483f_8511_b71eda798e11"
      unitRef="USD">1</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220949Member"
      decimals="4"
      id="h_259_bd1cdb31_5b1c_49ca_898c_c275c9c712d8"
      unitRef="pure">0.0001</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220949Member"
      id="t_111_6e54c905_99ba_453d_9909_6b168f8bd0d4"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;24,106,800&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;9&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220949Member"
      decimals="INF"
      id="h_260_08f9be2a_3622_4a83_9344_b56c1c2ef452"
      unitRef="USD">24106800</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220949Member"
      decimals="INF"
      id="h_261_338b8672_05dc_4b49_8805_6cb1074c1022"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220949Member"
      decimals="4"
      id="h_262_68d90f77_b73c_4312_a517_af236e2ee603"
      unitRef="pure">0.09</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220949Member"
      id="t_112_c8d73338_d249_4611_af5a_bd13a34784e2"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;84.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;14.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(25.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;43.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;16.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;11.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_263_ca7635a7_1dd6_4c5e_af79_7a5d05de5f15"
      unitRef="pure">0.849</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_264_6859e2fa_36e4_4acd_b491_89136ed4b10d"
      unitRef="pure">0.254</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_265_c5bbc3a6_5c0e_4c9b_b2b9_22dafb806b68"
      unitRef="pure">0.149</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_266_0c657a32_1273_4b95_a3b5_a5ccf8687955"
      unitRef="pure">-0.252</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220949Member"
      id="t_116_9d29c993_b54a_379d_d9f9_de19741e1965"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;43.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;16.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;11.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;9.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_267_c454b243_4b2a_4563_b887_109396e6a891"
      unitRef="pure">0.435</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_268_25246ae0_15db_47e0_99fb_5d8cc10cb7ee"
      unitRef="pure">0.169</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_269_f327a55e_d125_4367_8d42_fbcfb7ae89ca"
      unitRef="pure">0.116</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_270_1421b520_efe4_44a1_a63d_e3db348dd175"
      unitRef="pure">0.091</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_271_7ac91bd1_1f03_428a_b33c_42b2c52aee97"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_272_2c6d190a_5d4c_49f2_9b28_bae0f1ac9a0d"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_273_46738832_f78e_4ff1_9a08_27fe3432f656"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_274_9fb06602_f683_4f03_a740_e7a81ebbfbf0"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_275_725401c8_8a69_4537_8801_c12fa897d6d5"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220949Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_276_7cc92adb_fc74_46c9_a65f_90ca474f7d78"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220951Member"
      id="t_121_a44c6c42_8148_09ba_aea9_01b77916e1b4">BlackRock LifePath&#xae; ESG Index 2050 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220951Member"
      id="t_122_8daa9065_ab27_f7c3_ec16_ec2ce4d72172">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220951Member"
      id="t_123_05485575_cad3_f35e_c5b7_0cd1af80d20c">LEGIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220951Member"
      id="t_113_975205f2_a5ee_4a65_96d4_2a3c72f8f2ab">This semi-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; ESG Index 2050 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220951Member"
      id="t_114_7f28181d_78a4_4f74_8a46_3c0afa8d47ca">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220951Member"
      id="t_115_dfd83d6a_6745_479f_b938_679963db55f4">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="D20251031_20260430_C000220951Member"
      id="t_116_d1081341_f9b2_4967_a203_bc5a0d3ca222">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220951Member"
      id="t_117_198bbec7_62cc_4bd3_beab_98ad3ca005bc">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220951Member"
      id="t_118_1d593b11_b033_404c_87c8_aaec53069fae"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.05&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220951Member"
      decimals="INF"
      id="h_277_eea972cd_7e54_4a23_ab84_e283c36f199c"
      unitRef="USD">3</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220951Member"
      decimals="4"
      id="h_278_26a4da9c_559a_4ce4_891d_d174301ab8d3"
      unitRef="pure">0.0005</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220951Member"
      id="t_119_9e2f0e39_abb6_4be6_9467_62451cfe562c"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;26,402,877&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;9&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220951Member"
      decimals="INF"
      id="h_279_a1fddbe2_a4f2_432a_bca6_93ef61451216"
      unitRef="USD">26402877</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220951Member"
      decimals="INF"
      id="h_280_143861f4_4770_40f8_8ff1_1c4b8fc594d6"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220951Member"
      decimals="4"
      id="h_281_2ebd3bd1_1ffb_4109_b0a6_232955abb02f"
      unitRef="pure">0.09</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220951Member"
      id="t_120_34a38926_7757_4c55_897f_15bd5c710cbb"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;93.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;6.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(25.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;47.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;18.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_282_542f016f_6fe4_4346_b647_2349b271e335"
      unitRef="pure">0.934</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_283_92dc373f_58eb_4b1e_8ccc_62c0d28e2bd5"
      unitRef="pure">0.253</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_284_05bf46c4_5128_48dc_875a_578c21fd753f"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_285_d42e5986_f925_401d_b116_e90519cb694d"
      unitRef="pure">-0.252</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220951Member"
      id="t_124_d5063776_7878_b9c4_08a9_dd659e3d60d1">
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;47.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;18.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_286_0adc9e9f_32e0_4f6c_9050_0a607a5d7d8d"
      unitRef="pure">0.478</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_287_46075a76_2cb7_4252_af6b_b23774e912c4"
      unitRef="pure">0.188</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_288_fd55014e_3b1a_44f6_b9a9_cc5696f0104c"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_289_d3f0d8ff_9f5f_4d9e_b079_c3cd4ce057ec"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_290_a3062d21_615c_47a9_98dd_e38b7c2e1aa4"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_291_98b347a4_0a1c_4a07_9cbb_69d73769f561"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_292_29c2ac34_a61a_406d_9112_c4753ab7b170"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_293_2b876108_d91c_499f_815a_7206804cf803"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_294_f52c3f6e_f9b1_4476_84fd_0ed00e5abc86"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220951Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_295_bb46ac79_a06a_4557_89f6_1c9e2ae8dcc9"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220950Member"
      id="t_130_e7a00ab0_4ad4_0ee2_909a_d90f741a2aea">BlackRock LifePath&#xae; ESG Index 2050 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220950Member"
      id="t_131_27835455_f26b_7aa8_7e24_3d6abe05bcce">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220950Member"
      id="t_132_4c1374e2_241e_c0ef_7b71_8e825d991fbe">LEBAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220950Member"
      id="t_121_a61f5c65_4d3e_410a_a263_d269dab26468">This semi-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; ESG Index 2050 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220950Member"
      id="t_122_cdb77ff1_9dba_4fd0_9f36_093c7437b960">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220950Member"
      id="t_123_38074f0b_56fa_4bce_a759_596878be2b50">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="D20251031_20260430_C000220950Member"
      id="t_124_15d5c7ff_8c33_4908_9036_24d24f7e200c">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220950Member"
      id="t_125_95308cc5_694c_4567_9b5a_ef918f684db0">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220950Member"
      id="t_126_5551dc69_cb12_4f97_a366_b862cbf7e0e6"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;15&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.30&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220950Member"
      decimals="INF"
      id="h_296_5a034fd1_2b87_4900_8df3_5ad9c7472385"
      unitRef="USD">15</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220950Member"
      decimals="4"
      id="h_297_af539955_51dc_4818_8884_886d340d9ae2"
      unitRef="pure">0.0030</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220950Member"
      id="t_127_6624ace1_c53c_4f25_a3e0_740607f40946"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;26,402,877&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;9&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220950Member"
      decimals="INF"
      id="h_298_d0dda5dc_2801_45de_81e4_7bef8e7f9b9c"
      unitRef="USD">26402877</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220950Member"
      decimals="INF"
      id="h_299_7aa5d291_1513_4c37_a493_631d9c54bd01"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220950Member"
      decimals="4"
      id="h_300_4b74c306_6da0_40ba_a2bd_cecfb077337b"
      unitRef="pure">0.09</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220950Member"
      id="t_128_90098099_cf0d_46ef_9ec6_cb6c1854bbf9"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;93.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;6.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(25.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;47.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;18.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_301_2eb39cbe_7f28_43bc_9f32_6983ee678fc9"
      unitRef="pure">0.934</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_302_33dd3dbf_bfbb_4378_a99a_abfb6c50d460"
      unitRef="pure">0.253</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_303_d219d02d_391b_4516_a46f_3cb28ebe0e63"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_304_52b03287_7ff0_45c4_add5_d095f4eb4b9a"
      unitRef="pure">-0.252</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220950Member"
      id="t_129_2a49a8a3_893d_8e6a_1cbb_3934a8d5ab53"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;47.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;18.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_305_135d7e08_c6ed_49a5_8af5_bf41c2d9c22d"
      unitRef="pure">0.478</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_306_7995b6f3_739a_40e8_bd6d_6fd3ed32e08e"
      unitRef="pure">0.188</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_307_2fadac77_c846_45cb_aa6d_46c90794b415"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_308_615cf453_eaef_490d_9ec9_c0eb3e7a0ca0"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_309_3f9750c1_8f98_43bc_bd0e_3d41b8da6641"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_310_76e17e16_c6df_4974_a8e2_3ccd46d782f5"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_311_75f88ab0_1f00_4033_85b8_f4db3af22eca"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_312_1afd1f8c_4067_4cf3_806c_571662006309"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_313_80957e46_fe8c_4064_ae6a_2ca258e97e79"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220950Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_314_21d03a98_0f46_48a1_893e_324a342761ca"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220952Member"
      id="t_137_c49408b7_9f84_e822_18cf_14e9efe33749">BlackRock LifePath&#xae; ESG Index 2050 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220952Member"
      id="t_138_90ae2304_1a42_1c79_9229_4435539d4c36">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220952Member"
      id="t_139_6f5835cc_b1f4_15d7_06a3_dfe007ffbe14">LEPKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220952Member"
      id="t_129_869e65aa_2619_4300_856b_acc009458437">This semi-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; ESG Index 2050 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220952Member"
      id="t_130_ff4eef1e_6aa4_4dcc_aebb_acba4e3f1aed">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220952Member"
      id="t_131_0bcb0033_cbd3_4232_a675_2940f692f55a">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="D20251031_20260430_C000220952Member"
      id="t_132_0a02290c_eb5f_460f_aa80_b74d1f94d207">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220952Member"
      id="t_133_c67165f6_c8c9_4ccd_8014_0be816ae013d">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220952Member"
      id="t_134_fcfd4d06_b1f1_40dd_9ddb_a39a9df66629"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;0&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.00&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(c)(d)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than $1.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than 0.01%.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220952Member"
      decimals="INF"
      id="h_315_e1db62ad_f0e3_411b_aa97_04ff845da6cc"
      unitRef="USD">0</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220952Member"
      decimals="4"
      id="h_316_14dadfd7_d3ca_42bd_b6a1_ae6e02e483a4"
      unitRef="pure">0.0000</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220952Member"
      id="t_135_32406096_e784_4bc0_a707_90f9f2f7c71c"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;26,402,877&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;9&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220952Member"
      decimals="INF"
      id="h_317_6daf6b87_502c_4b3e_82a9_c5ecf5702bae"
      unitRef="USD">26402877</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220952Member"
      decimals="INF"
      id="h_318_46dd3d07_5168_456b_ab96_d0281a1bd7f1"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220952Member"
      decimals="4"
      id="h_319_c2dac9b5_3f0a_4d8c_b0db_38193e369d9a"
      unitRef="pure">0.09</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220952Member"
      id="t_136_f59687d8_7af6_4863_a8fa_464e9b8acc80"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;93.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;25.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;6.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(25.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;47.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;18.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_320_feec3080_1c97_478d_88a9_78ebba1df6aa"
      unitRef="pure">0.934</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_321_e9ba9ac9_6bf5_4672_844f_075902df9300"
      unitRef="pure">0.253</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_322_a2f60ad1_8091_4165_b69f_b476abffa3d8"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_323_9ec1b226_87fa_4134_a4b8_247047cd97d4"
      unitRef="pure">-0.252</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220952Member"
      id="t_140_c9c35fa2_9363_588a_7e99_0bfc53463f22">
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;47.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;18.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_324_f4c5c9ce_8bed_4a71_9bc6_38eccb331993"
      unitRef="pure">0.478</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_325_d35ef74d_280b_44c6_abaf_05b34abf0c40"
      unitRef="pure">0.188</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_326_dd3e3bb1_2989_4edd_8eb7_a1c2e2640de0"
      unitRef="pure">0.100</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_327_2514e22a_4428_47d0_8bf4_2532e11dd451"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_328_cadca255_6b60_4cfc_ad19_9d46698c061e"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_329_9a5a0767_947a_47b9_8100_f5ef62756abb"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_330_3bfbca50_9dbf_41f4_a5d2_ef9d511c3371"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_331_7c0050db_da25_4278_b909_d5892a8d0b20"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_332_217769dd_f928_4465_b27a_7d46fc4aedf8"
      unitRef="pure">0.017</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220952Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_333_e0a78249_2993_4437_83c8_4551c9677209"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220955Member"
      id="t_145_e7f1c371_fe88_4a3b_a035_a336abadc8bc">BlackRock LifePath&#xae; ESG Index 2055 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220955Member"
      id="t_146_1b904338_33b4_fa0d_f2ac_9f036334d297">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220955Member"
      id="t_147_9fc0cccd_54b5_5e7c_bd32_543197a0ede2">LEEIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220955Member"
      id="t_137_4fbffd39_d91c_49dc_b66a_86ff5e8cf1a4">This semi-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; ESG Index 2055 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220955Member"
      id="t_138_aaeb496d_7b00_4818_be30_22e0cf0882f6">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220955Member"
      id="t_139_e00f2c80_8dcb_45fe_93f4_4df94080121f">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="D20251031_20260430_C000220955Member"
      id="t_140_92e709f4_9d2c_4bf0_856e_d7dc0c5f39e9">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220955Member"
      id="t_141_acc1a3ec_e14d_473f_ba5e_bc41b73688b0">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220955Member"
      id="t_142_7c40509b_ba2c_49d9_90d6_d88330f6979e"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.05&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220955Member"
      decimals="INF"
      id="h_334_5d048a91_e739_4136_b3cf_52c6b3d8f75b"
      unitRef="USD">3</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220955Member"
      decimals="4"
      id="h_335_6d5b1eb6_2503_450b_b251_538ea983a650"
      unitRef="pure">0.0005</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220955Member"
      id="t_143_568e9134_6c52_4b8c_955b_56a7ec5dd45f"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;20,247,241&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;6&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220955Member"
      decimals="INF"
      id="h_336_84bad4d9_5585_4392_bf50_b27fc3690b2b"
      unitRef="USD">20247241</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220955Member"
      decimals="INF"
      id="h_337_78bd27aa_93b1_4b14_8b65_a98f54ab04b1"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220955Member"
      decimals="4"
      id="h_338_2a5e7791_8a81_4027_81a0_41bd6adf7f14"
      unitRef="pure">0.06</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220955Member"
      id="t_144_5d78d881_f114_410a_98bb_9cf8e7d76464"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;97.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;33.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(33.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;19.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_339_0812b00c_8659_4779_ba3f_0e1576e6ea22"
      unitRef="pure">0.978</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_340_bafca060_85eb_4a58_b9b3_558b025dbaf7"
      unitRef="pure">0.338</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_341_83d52124_8641_4250_b67e_fbd526c0906f"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_342_620c7a3a_4f62_4c0e_ad86_4a144d363dd6"
      unitRef="pure">-0.336</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220955Member"
      id="t_148_46c94b34_aad0_8cb3_b002_ffb68d206c55">
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;19.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_343_1f864df4_ba77_4da9_945f_8b50d1b47563"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_344_6cf902f3_5bd9_4800_9805_9efa924cb700"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_345_3ba23530_cb43_4833_98d8_e27fbd8c92ad"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_346_0355d50f_494d_43e9_8c95_6bce4db3a380"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_347_f139870d_e3b3_4d4a_a702_403c14dfdac2"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_348_945b3948_f6b0_4a05_a2a4_0d0b1600407c"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_349_abfd8b70_0b92_40c1_b31a_42852c4de3fc"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_350_84bab575_8642_4632_baf7_60f22581721a"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_351_8ca38cb0_30d2_41bd_b1f0_5ca78c02baf4"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220955Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_352_11f73e2d_114e_4589_b90b_2402056b12bb"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220953Member"
      id="t_153_7ec5f2a8_a5eb_30bb_3ce1_65c6ca174558">BlackRock LifePath&#xae; ESG Index 2055 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220953Member"
      id="t_154_20bad81d_4f03_cefc_ef70_9b61d014d5cf">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220953Member"
      id="t_155_c0ebc8df_46b7_f765_aba6_351e70de97d5">LEVAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220953Member"
      id="t_145_655032fd_6947_4884_b180_125757785272">This semi-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; ESG Index 2055 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220953Member"
      id="t_146_5d362dd5_49a9_4c09_a215_430c05b6b660">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220953Member"
      id="t_147_fd4aeca7_7c06_47a2_93c2_d828ca2d482f">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="D20251031_20260430_C000220953Member"
      id="t_148_32e1091e_8ff8_402c_824d_b18dad97e9ae">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220953Member"
      id="t_149_4b99d1fb_f9b7_4da5_b953_e3082eba01b0">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220953Member"
      id="t_150_ca613dd7_493b_427d_80ed_3e579b82873a"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.30&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220953Member"
      decimals="INF"
      id="h_353_14023866_0576_4f3a_a454_e57c3eadfc5c"
      unitRef="USD">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220953Member"
      decimals="4"
      id="h_354_5d96de57_88e0_4ff2_81f1_330094d080c1"
      unitRef="pure">0.0030</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220953Member"
      id="t_151_b01bcb12_5c8f_4d28_bd7b_c45f29630098"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;20,247,241&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;6&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220953Member"
      decimals="INF"
      id="h_355_1bada1aa_5d4b_4002_b4f1_65351f0691c9"
      unitRef="USD">20247241</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220953Member"
      decimals="INF"
      id="h_356_3a3f690a_9e95_415c_a8d9_034bc9759dcb"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220953Member"
      decimals="4"
      id="h_357_ef81e035_e53a_47bd_966f_aafc9e08264d"
      unitRef="pure">0.06</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220953Member"
      id="t_152_00c91dfe_d0dd_4d36_8162_1d5ee94a9b56"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;97.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;33.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(33.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;19.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_358_a63163b6_446d_4f0a_af03_d7f8f4499d8b"
      unitRef="pure">0.978</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_359_4831cac5_dd10_4b38_a1fc_c10736ec2adc"
      unitRef="pure">0.338</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_360_925919e5_6d97_4a90_b7ad_556c7d37c77e"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_361_94104cd6_251c_40f2_ade1_bd5980b81035"
      unitRef="pure">-0.336</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220953Member"
      id="t_156_ef6b13a3_1073_0394_d892_955ccafd9979"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;19.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_362_89e60c5d_5367_4168_ae90_dc80d6e9390b"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_363_dc0f00ee_60fd_4f50_af99_70d496a3122c"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_364_3cb124dd_27b8_49ef_828c_71db00ebddd4"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_365_e3af1a75_6683_455d_b8f2_f37c09d1fd04"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_366_3fe17ad6_b916_4fa0_bd45_15b0b38a738a"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_367_28fa355e_bb89_42c2_84e3_3df8874d38e6"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_368_1769311b_5f25_43cd_993e_00fd37426574"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_369_3476e0d9_fa53_4e22_87da_3dc05987cc18"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_370_2f702066_5d1c_43c4_bb94_cc7b4d78bc12"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220953Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_371_313b25d5_1b21_407f_a95a_1b8f30737c25"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220954Member"
      id="t_161_9f1bcac4_20c0_4282_270b_cd17befbe2b4">BlackRock LifePath&#xae; ESG Index 2055 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220954Member"
      id="t_162_b1ce9ba6_f8ce_d702_b6d5_0df4accd8e56">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220954Member"
      id="t_163_3daef521_4434_83e3_524a_53513d27c2f6">LEVKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220954Member"
      id="t_153_2953f310_644e_4f1f_bef3_e8c42fa97823">This semi-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; ESG Index 2055 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220954Member"
      id="t_154_6db3d208_b502_4e3d_8716_6c16e05e2efb">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220954Member"
      id="t_155_aa46c45a_c8d8_4ddc_823d_39c9fbf4d242">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="D20251031_20260430_C000220954Member"
      id="t_156_5d7bb75e_b07f_4c40_9873_3a6a2491275b">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220954Member"
      id="t_157_67a248c5_375e_4219_8261_37bc206e6921">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220954Member"
      id="t_158_ce03a08c_9a4f_473c_a138_de99f1915340"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;0&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.00&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(c)(d)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than $1.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than 0.01%.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220954Member"
      decimals="INF"
      id="h_372_2e57bdc8_fb30_4604_9a6c_cc5bb9019819"
      unitRef="USD">0</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220954Member"
      decimals="4"
      id="h_373_642a7938_0704_4036_9045_48c31719cbe2"
      unitRef="pure">0.0000</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220954Member"
      id="t_159_7511f517_5f94_4a38_9b29_2eba61152574"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;20,247,241&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;6&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220954Member"
      decimals="INF"
      id="h_374_d3a0bcd8_4ac2_4202_b49d_79be4403f6c7"
      unitRef="USD">20247241</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220954Member"
      decimals="INF"
      id="h_375_0acfa89d_0244_47a9_99e1_498d5bea0487"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220954Member"
      decimals="4"
      id="h_376_5eb2bb27_addf_41c3_995a_1ce7c59b2e5a"
      unitRef="pure">0.06</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220954Member"
      id="t_160_2c6a10fd_f430_4049_8085_c9273fd7bce0"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;97.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;33.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;2.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(33.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;19.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_377_3028489c_7b3d_4494_ba43_d9c645e0e5a9"
      unitRef="pure">0.978</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_378_71a566bd_d4a3_4630_86a5_420f147cae09"
      unitRef="pure">0.338</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_379_79f02490_dd0f_4e92_9558_674ffa6279f6"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_380_88b8b4b5_7563_497e_9bff_b8dd9e664329"
      unitRef="pure">-0.336</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220954Member"
      id="t_164_4986dc60_7eee_4102_11f8_f1d704f1bcdf"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;19.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_381_f141981e_8dcd_4985_bc49_55293e721152"
      unitRef="pure">0.501</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_382_6fc112e1_1b29_471b_adcf_c648f6eef1b6"
      unitRef="pure">0.198</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_383_9c8441fd_ee68_44eb_b546_0d4d1dd900af"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_384_0fbcc840_def7_43ed_bd75_38e2940620a1"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_385_3a69d2df_5aae_4511_a1cc_ef50fd4b7712"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_386_8e2eb9eb_2ce2_4f6a_ab9d_d6f37609fc62"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_387_1fae0dae_450d_411e_82ee_b73969134883"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_388_2aa6334d_6e91_48c0_a124_b6647d9d4a13"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_389_d5383dc9_25e7_4ccb_867d_7251d610d6d4"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220954Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_390_07f83c26_ae7c_477c_8d9f_673cac662176"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220956Member"
      id="t_173_2063ceed_82e5_de5a_1362_a80a3f51ba72">BlackRock LifePath&#xae; ESG Index 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220956Member"
      id="t_174_11f03130_f4ee_cb7c_e8a4_525282aa0b8f">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220956Member"
      id="t_175_5e9e7c9f_10e9_3c8e_8ed8_a6f34ab9d505">LEZIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220956Member"
      id="t_161_0c4db8d6_c11c_4c41_b3ba_d1bf1149aa98">This semi-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; ESG Index 2060 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220956Member"
      id="t_162_5c4f2d09_82a4_4a43_bf85_aa0d983776fb">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220956Member"
      id="t_163_4fcf3154_f0f3_4664_ae59_982dfb4cc5d9">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="D20251031_20260430_C000220956Member"
      id="t_164_d834856b_b3a5_42f1_b30e_cf23ad2f204e">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220956Member"
      id="t_165_623d6584_b458_4ebf_a4d0_99ca930ca8a8">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220956Member"
      id="t_166_ebdf541b_c206_4202_8def_09df8f665987"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.05&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220956Member"
      decimals="INF"
      id="h_391_e546e353_fea0_4a8c_a969_83b5bb5a6d40"
      unitRef="USD">3</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220956Member"
      decimals="4"
      id="h_392_a7c6e97d_9975_4f8d_9d3d_374afde819f8"
      unitRef="pure">0.0005</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220956Member"
      id="t_167_7b1bfe71_d3bc_4984_a995_e57152398b29"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16,647,697&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;7&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220956Member"
      decimals="INF"
      id="h_393_0aa720a0_a064_48fb_b139_646a1098661c"
      unitRef="USD">16647697</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220956Member"
      decimals="INF"
      id="h_394_a6bfad27_7141_4686_9e77_ee5fda0f11ec"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220956Member"
      decimals="4"
      id="h_395_258c09b2_d29c_433d_abf0_bb4846e2dadc"
      unitRef="pure">0.07</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220956Member"
      id="t_168_11e69660_f2eb_452a_a5f7_6797a53ffd21"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;98.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;35.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(35.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_396_a3def36f_4a46_4a83_8c38_d6c634272445"
      unitRef="pure">0.989</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_397_4338dad4_9dd0_4e20_afba_ae01cdccc994"
      unitRef="pure">0.356</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_398_5e6c481a_000a_4593_94e2_94561639ed74"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_399_e1871ec3_1d31_45d6_803c_60f88470dac3"
      unitRef="pure">-0.355</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220956Member"
      id="t_172_683944f1_b514_2837_8ce3_5c21392511a4"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_400_ff1f9606_01a9_415f_be60_e6bc18db90bc"
      unitRef="pure">0.507</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_401_b1164257_3ca3_400a_b78e_72929b8085dc"
      unitRef="pure">0.201</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_402_abbbff59_e277_4927_8e00_07897609b9d6"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_403_e5494fed_14f8_4cd4_8d57_1ce65df4e5cb"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_404_d277e75a_f251_4b37_b885_5baf29c90fa7"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_405_d0075208_3bad_4525_824c_3749ae521e1e"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_406_51f8fc77_f7b1_4fa8_8c2c_9f1c4927b7ac"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_407_fdd67dcb_12fa_4a55_a5cc_5f561e293f83"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_408_7dec0980_a2df_4464_90a6_131a133c112f"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220956Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_409_279d8656_2924_4b5c_80b5_627d7363336f"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220958Member"
      id="t_177_1e3f781f_7347_5416_7584_4e413a950e99">BlackRock LifePath&#xae; ESG Index 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220958Member"
      id="t_178_80378f0e_e39f_981c_0c86_e1d45a753a49">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220958Member"
      id="t_179_04d0b515_0b13_a5b6_e039_f091a2327e0e">LEZAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220958Member"
      id="t_169_d42d6fa3_5c81_4193_bd9e_f6d4eafff6c2">This semi-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; ESG Index 2060 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220958Member"
      id="t_170_78e7ce0e_afe6_43dd_a6d1_af2dbc3527d8">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220958Member"
      id="t_171_222742bc_04aa_4f2d_a0aa_a39e01f42b5a">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="D20251031_20260430_C000220958Member"
      id="t_172_54d384a7_1ee1_40b7_896f_3fe1fbef72ce">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220958Member"
      id="t_173_f64733fc_59b2_42c3_89f2_25a9073ca926">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220958Member"
      id="t_174_5bf752ed_c69b_4680_8246_e55f40c3c932"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.30&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220958Member"
      decimals="INF"
      id="h_410_bd5e177f_2b6a_40fa_8c39_6e7a1ecf1e98"
      unitRef="USD">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220958Member"
      decimals="4"
      id="h_411_c7213bf2_af5a_4e18_a324_ac41caa9bf09"
      unitRef="pure">0.0030</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220958Member"
      id="t_175_cd4a9e1e_f63a_4e15_886c_a3dfd64327df"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16,647,697&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;7&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220958Member"
      decimals="INF"
      id="h_412_05288803_d4b6_436f_9f03_006b7ee4b660"
      unitRef="USD">16647697</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220958Member"
      decimals="INF"
      id="h_413_5ccc613b_6baa_4e09_8eda_b9e6b181e606"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220958Member"
      decimals="4"
      id="h_414_a7fbc308_2fef_4ee5_826d_899fd5ea35e2"
      unitRef="pure">0.07</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220958Member"
      id="t_176_05cb4312_acb8_4329_b6c0_53354a197739"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;98.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;35.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(35.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_415_9f5af016_2358_403c_88d3_31f876962255"
      unitRef="pure">0.989</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_416_a2206025_65ee_4738_bf66_1dafa826dadc"
      unitRef="pure">0.356</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_417_57cd7f74_1d37_4698_9850_1599f255ea79"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_418_c87835d4_37f4_49b9_bc8b_f8a38b7df7cb"
      unitRef="pure">-0.355</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220958Member"
      id="t_180_5cef13a9_6b16_3132_31da_c2fdb1c643d8"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_419_ea62ad63_ab03_46b2_87c3_79abd1aabd34"
      unitRef="pure">0.507</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_420_b0a981ae_582e_43a8_a7cc_9aca17eac8ad"
      unitRef="pure">0.201</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_421_353e85f4_ca84_4682_83d1_0fffa323aa59"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_422_253b7c77_9e0f_43a7_903c_0e1bea8221d4"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_423_ad2fa7dc_8f52_43e7_b6d4_8fe5e6953341"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_424_2d051bff_67e4_4133_ae25_50a56f723e8c"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_425_9ce9bed2_c296_47a6_baa8_86bf4d61619b"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_426_6bdd818a_f8a7_48c6_bee9_f81163e4ca92"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_427_814b338d_690c_4539_90c8_f44f871f9211"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220958Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_428_cd4a2817_d2db_4f34_9e08_d19899efba31"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220957Member"
      id="t_185_5dd38352_1812_4e56_b1f2_3ef8a1fcd047">BlackRock LifePath&#xae; ESG Index 2060 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220957Member"
      id="t_186_12de0155_e9b9_8274_c692_ae57dfd0d2f8">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220957Member"
      id="t_187_a5afdb28_cff3_5da1_4a22_9ef4040308f0">LEZKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220957Member"
      id="t_177_2d7c75d0_f17f_40cb_8dfa_a089b4721f64">This semi-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; ESG Index 2060 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220957Member"
      id="t_178_c4725372_6cff_4b0c_8d7f_c635a88f18d8">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220957Member"
      id="t_179_bc13425c_3025_488a_85d6_91170e0fbd01">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="D20251031_20260430_C000220957Member"
      id="t_180_72617575_1e56_4472_9cdc_7bb81e04e353">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220957Member"
      id="t_181_136ac112_ec7f_4fdc_a4ed_dca21459ea2e">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220957Member"
      id="t_182_c2b1fb1f_ee4a_4219_bf2b_187c8f01bf15"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;0&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.00&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(c)(d)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than $1.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than 0.01%.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220957Member"
      decimals="INF"
      id="h_429_dc7629e2_3fb4_4694_85cd_ba0e692da2ce"
      unitRef="USD">0</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220957Member"
      decimals="4"
      id="h_430_9720ed8e_c3d5_4f5d_b310_3777b3a1d867"
      unitRef="pure">0.0000</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220957Member"
      id="t_183_159066b2_cafc_4df5_aa42_6b08f0534e3d"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16,647,697&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;7&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220957Member"
      decimals="INF"
      id="h_431_b2b16d1e_f55b_4dcd_b7a1_78b4346632e4"
      unitRef="USD">16647697</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220957Member"
      decimals="INF"
      id="h_432_e4aaf300_b441_4103_96e7_1fbf5faf149c"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220957Member"
      decimals="4"
      id="h_433_14eb7839_c5d4_4f7e_a0b3_577bd6394054"
      unitRef="pure">0.07</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220957Member"
      id="t_184_c02ca556_1d1b_4ab5_a3f7_b54b3f248d04"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;98.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;35.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(35.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_434_7302c34f_459e_4db5_91f7_23a82f0ce072"
      unitRef="pure">0.989</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_435_d39845c4_dab1_4358_95f7_fd900d1a525f"
      unitRef="pure">0.356</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_436_c5b01e48_6703_4934_bc87_2f9c50463638"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_437_06f94c9e_a7c6_4787_8208_caedbdfdf3ee"
      unitRef="pure">-0.355</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220957Member"
      id="t_188_b94634b7_15b9_0278_7f9f_cba3382ee50d"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_438_40063d20_280d_4d5a_8be5_7d267b975ee6"
      unitRef="pure">0.507</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_439_650c1de8_c63c_40a7_9ea1_6ba9d20f82e3"
      unitRef="pure">0.201</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_440_45926bd6_eff5_4923_83ea_f10cf57a33b6"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_441_115de2e4_136b_4ff2_8dd4_a1efb4361211"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_442_62afe0e6_50e9_4752_8833_553db26723c4"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_443_4ec07cd4_a438_4f7c_a6cc_98ae198277d7"
      unitRef="pure">0.033</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_444_58de3bba_47e1_497e_a7ca_b4bf36d19752"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_445_6a9d3ad4_143b_4f6c_9ca6_23237f90aeb9"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_446_b31a0c8d_1ce2_426b_a1c6_beddaada0b14"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220957Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_447_7a818ad1_63fe_41bd_bd73_dff143d71394"
      unitRef="pure">0.002</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220934Member"
      id="t_193_cde69348_79d6_2fe2_3fcd_aa210aec701c">BlackRock LifePath&#xae; ESG Index 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220934Member"
      id="t_194_1c1e721a_b37b_c248_c92c_0eaa3c638fa5">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220934Member"
      id="t_195_1baaddd4_583c_058d_2cf6_7faaaf26725c">LEWIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220934Member"
      id="t_185_3409e14f_3a5c_4494_a516_e0ed5d66c676">This semi-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; ESG Index 2065 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220934Member"
      id="t_186_9cdcd1d5_d72e_4289_bc2e_4e28c5bc990c">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220934Member"
      id="t_187_49d5cfc5_8aeb_4d94_a408_6929f4252fb3">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="D20251031_20260430_C000220934Member"
      id="t_188_6878b143_aaa5_4423_9d7b_776cd509324e">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220934Member"
      id="t_189_123b7dc4_4b78_49a7_bf98_d366744d9f96">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220934Member"
      id="t_190_50c82fcd_3f5a_4338_a839_6b91e35a8697"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.05&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220934Member"
      decimals="INF"
      id="h_448_c23f8405_737a_4a19_b6e1_50ebb4710b88"
      unitRef="USD">3</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220934Member"
      decimals="4"
      id="h_449_87a8d18a_2eec_43db_91d6_16141447f6c0"
      unitRef="pure">0.0005</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220934Member"
      id="t_191_dd63e012_d251_4bbc_8567_5dde901c6c16"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;8,870,396&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;11&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;7&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220934Member"
      decimals="INF"
      id="h_450_0c864c91_0dde_49fe_8dcc_d03da1ce6adf"
      unitRef="USD">8870396</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220934Member"
      decimals="INF"
      id="h_451_556dc125_5073_4b2e_81b2_21b3b584158f"
      unitRef="Holding">11</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220934Member"
      decimals="4"
      id="h_452_21e2e3a7_a0cb_4205_814a_337f20610231"
      unitRef="pure">0.07</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220934Member"
      id="t_192_befdf4af_945a_4fcd_a949_fa3781728e71"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;98.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;38.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_453_c35b7665_e79d_4b78_ab83_e390ab10e197"
      unitRef="pure">0.989</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_454_4d38f155_b547_438a_ae31_9225efa8ca53"
      unitRef="pure">0.383</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_455_4cad7377_5c25_42c2_83f7_6087ded97478"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_456_14a2b05f_c135_415d_8137_eb5fd413b672"
      unitRef="pure">-0.382</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220934Member"
      id="t_196_67b2f193_57d1_fc31_f3b9_a607cab6942b"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_457_5e644dba_f4c0_4a25_902e_28db2b0c02cd"
      unitRef="pure">0.507</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_458_8c6b69ec_758b_4fbf_90aa_59dbc12832ba"
      unitRef="pure">0.200</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_459_f6de1359_6db9_4d13_8804_6e8e7850b1df"
      unitRef="pure">0.107</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_460_11e4aa96_111a_432e_ad23_929628cc3853"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_461_f2727dca_0b98_4b4c_a309_b7c25b4b72a8"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_462_616d1e50_153d_4ab8_a4f2_8c2a7793fe1e"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_463_b37f8f74_331b_4ee6_ae2a_d4e2bebb48be"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_464_02e2608b_877c_4fd2_9e4b_277abd9987c3"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220934Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_465_59503c86_0f8e_460c_9177_3316ae33db96"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220932Member"
      id="t_205_64d5d5ab_8de8_bae2_08ea_ba9299deb8c8">BlackRock LifePath&#xae; ESG Index 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220932Member"
      id="t_206_f52464f6_0f61_6cd6_8c92_1b5b740e8ed2">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220932Member"
      id="t_207_5e45bffe_822c_73f5_050b_c044404e5f55">LEWAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220932Member"
      id="t_193_62930921_1399_4c6a_97a7_e4cc9b19197e">This semi-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; ESG Index 2065 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220932Member"
      id="t_194_ccf3f86f_e5d1_482f_92c3_e98eaacf1293">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220932Member"
      id="t_195_d8ba80c2_40d2_4edb_bfc2_477a809d06e6">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="D20251031_20260430_C000220932Member"
      id="t_196_4eaf0f29_24fb_41e9_bdac_496271cc7d01">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220932Member"
      id="t_197_feef7e74_7582_4442_b7a2_d5f18b24ad17">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220932Member"
      id="t_198_a29d4a89_3d49_40d2_83e8_122c1cafc7d9"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.30&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220932Member"
      decimals="INF"
      id="h_466_84af897f_06ee_4189_8b8c_34a1bb83987b"
      unitRef="USD">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220932Member"
      decimals="4"
      id="h_467_afc27ee3_3d80_48e6_b641_64d04a45aad8"
      unitRef="pure">0.0030</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220932Member"
      id="t_199_154125cf_d332_452b_91f3_2702be4725f1"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;8,870,396&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;11&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;7&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220932Member"
      decimals="INF"
      id="h_468_0c083862_cbe1_495e_ae5d_2a1378c4a331"
      unitRef="USD">8870396</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220932Member"
      decimals="INF"
      id="h_469_2dad1de1_3405_4933_812a_322f67b3ee45"
      unitRef="Holding">11</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220932Member"
      decimals="4"
      id="h_470_b77ee8f8_1a80_4b18_b57f_6137244bb35d"
      unitRef="pure">0.07</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220932Member"
      id="t_200_18d5d4c3_34b9_4283_a2bb_611cbdbc08ff"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;98.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;38.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_471_d57d0c46_1189_4afe_a37c_32e70a0b3741"
      unitRef="pure">0.989</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_472_baa0408a_bc66_45fc_a849_09833c602411"
      unitRef="pure">0.383</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_473_3379a320_c2cd_43f9_869b_aca311524145"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_474_f9a8865a_7d00_4068_8e26_8237fe0e13e7"
      unitRef="pure">-0.382</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220932Member"
      id="t_204_63b66fbb_3052_5f31_c0b0_02014981f68c"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_475_cea86811_0fdf_4041_8a89_b10c860d0e2c"
      unitRef="pure">0.507</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_476_0b5bae5b_4247_4f2b_a550_60f646dd9459"
      unitRef="pure">0.200</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_477_7f7c8bca_a509_4c61_9948_ada874316f9b"
      unitRef="pure">0.107</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_478_b9f24189_7bc3_4fe1_8444_2b48848e6499"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_479_51caae73_c1fa_4ac4_acc3_d172ede877ac"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_480_24f68d8c_daa6_484a_a314_603545b7ae90"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_481_20c6a2a3_7391_4002_aa68_641eb54be90f"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_482_b39a4303_9efa_44e7_a250_2f96571e3af2"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220932Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_483_fad06f6f_8e26_4680_a75d_617dfe2529f6"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220933Member"
      id="t_213_5627bd4d_45d8_97c1_ec8c_5678d78837ab">BlackRock LifePath&#xae; ESG Index 2065 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220933Member"
      id="t_214_56b5137f_f7fd_f018_9e20_b2401dae3808">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220933Member"
      id="t_215_5f3f55db_ee2e_b784_85e3_b2bbb3a2f90f">LEWKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220933Member"
      id="t_201_13eba38f_6a6e_4f0a_893d_867a3dfa8f1c">This semi-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; ESG Index 2065 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220933Member"
      id="t_202_ed93bc99_e626_484b_a30a_e8f2ed75cd38">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220933Member"
      id="t_203_8b5be6a8_d7b6_46d7_acc9_0e323fe4fd84">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="D20251031_20260430_C000220933Member"
      id="t_204_4c80cd52_e8a8_440c_815b_04d4c416d0bb">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220933Member"
      id="t_205_c7f968fb_611a_4f9c_9554_a86459b30eee">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220933Member"
      id="t_206_d6072954_8a26_4413_96f6_4b91b6f3505a"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;0&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.00&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(c)(d)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than $1.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than 0.01%.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220933Member"
      decimals="INF"
      id="h_484_248f8737_9d02_40fb_b53f_9946efe7bae1"
      unitRef="USD">0</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220933Member"
      decimals="4"
      id="h_485_d5f23d7b_44c2_4a27_90b3_7ab5820f3b62"
      unitRef="pure">0.0000</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220933Member"
      id="t_207_3d0e4e5a_2cd9_4ea7_b5d5_f867e87d0adb"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;8,870,396&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;11&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;7&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220933Member"
      decimals="INF"
      id="h_486_cf8bdc37_ef90_4f09_8ad3_6a888753596f"
      unitRef="USD">8870396</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220933Member"
      decimals="INF"
      id="h_487_0f8cdf42_93a7_4342_832f_d97e7c549b00"
      unitRef="Holding">11</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220933Member"
      decimals="4"
      id="h_488_31a0b15a_1c58_4166_9fe0_622185f07c85"
      unitRef="pure">0.07</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220933Member"
      id="t_208_9aa6017c_9e71_4b42_b6a1_d15ff6403c5f"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;98.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;38.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(38.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_489_67d39512_b742_4ad8_9da2_de556022ce22"
      unitRef="pure">0.989</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_490_550d8205_f143_4aa5_a338_1e34813f4ead"
      unitRef="pure">0.383</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_491_6d980881_6f17_469e_93b6_0ef6cb0479be"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_492_38c28cf3_7d0d_4f28_8f9a_49d0f2ccd8bd"
      unitRef="pure">-0.382</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220933Member"
      id="t_212_1bd31349_dfab_7b11_cefc_fa38832bd3c0"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;50.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;5.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_493_056902ae_6ddc_4221_bb2e_d5d559f8ec1f"
      unitRef="pure">0.507</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_494_0dccea59_e9f6_4595_a230_648a02891c62"
      unitRef="pure">0.200</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_495_672f0876_d7c9_48b9_a5cb_3e0bdb876881"
      unitRef="pure">0.107</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_496_4b9776dc_0ed2_4316_892a_06dd68630a39"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_497_ec1ef1b9_b7da_4cb0_a856_84605704b34c"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_498_7723862b_5e7d_47d0_b251_517d6be6a3ce"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_499_9c251139_0234_48ba_8d48_d593699c72bf"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_500_4db06963_b1a7_4e67_8667_baf82b1439e9"
      unitRef="pure">0.015</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220933Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_501_28d76345_bf1e_4e67_a52a_7164dd93a8a2"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000251817Member"
      id="t_221_ccf178f1_08f0_65e3_21cd_3539f81094d5">BlackRock LifePath&#xae; ESG Index 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000251817Member"
      id="t_222_964ae342_8e9a_3649_0a68_cc4cde69c557">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000251817Member"
      id="t_223_092927b2_b392_b833_6b42_4bbb7798c861">LEYIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000251817Member"
      id="t_209_f09c6204_e9b1_468b_8527_f5b30c9fb459">This semi-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; ESG Index 2070 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000251817Member"
      id="t_210_e27674ab_5947_4548_a4e7_f2c27729556a">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000251817Member"
      id="t_211_b13e1449_eacd_4f34_8751_672cdb4487f4">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="D20251031_20260430_C000251817Member"
      id="t_212_26a5c10f_721a_4885_849d_f23c84278602">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000251817Member"
      id="t_213_d3dcfb57_f0a6_4c1f_941f_e1c5a23d6e55">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000251817Member"
      id="t_214_d2a0769d_6c4f_422f_b86a_0327a01a8b8a"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.05&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000251817Member"
      decimals="INF"
      id="h_502_e2b2af62_52b3_41cb_b878_b3cf437b4909"
      unitRef="USD">3</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000251817Member"
      decimals="4"
      id="h_503_cd3fd9c4_8de9_43c2_bb87_b92607e87731"
      unitRef="pure">0.0005</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000251817Member"
      id="t_215_f49d5579_879b_4af2_a269_1ef883d66283"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3,083,452&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;11&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;8&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000251817Member"
      decimals="INF"
      id="h_504_1c2eed63_ac92_4737_b0fd_f7b24146a50d"
      unitRef="USD">3083452</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000251817Member"
      decimals="INF"
      id="h_505_d3f6ec18_2961_495a_a23d_6f1c2683a9b8"
      unitRef="Holding">11</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000251817Member"
      decimals="4"
      id="h_506_3c068e04_d2be_459b_8a16_a24ffac11ded"
      unitRef="pure">0.08</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000251817Member"
      id="t_216_adbffcec_7ea0_40c1_a71a_1056a4327232"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;99.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;37.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(38.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_507_c8681b8d_406f_499d_955f_887d6eec86b8"
      unitRef="pure">0.995</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_508_97a0cd81_a072_40f5_8cbc_5cd30030abf7"
      unitRef="pure">0.378</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_509_cafffa97_035a_4fb6_9d32_a6aa71d73979"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_510_36abcf43_35d8_4c25_9e62_ef872a233b82"
      unitRef="pure">-0.383</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000251817Member"
      id="t_220_673bc4b9_e2c7_3fe1_cf7b_5e083854a35e"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_511_ffad1f5d_6b10_43e1_bb18_c539ce660c13"
      unitRef="pure">0.510</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_512_5c15f0c2_4e77_47a4_840a_bb3549639524"
      unitRef="pure">0.201</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_513_292b774b_75a6_4a2e_b398_06bf9bc77695"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_514_6678f442_a2c0_4cb7_b401_5ff2554c1eb1"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_515_f9abff85_799b_44d3_90b3_096f196042c5"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_516_0a732c9f_6372_4d25_985b_0fc66acef30d"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_517_b925b338_e912_4609_b3b0_3dd50f6fdf11"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_518_93d0db0e_400b_4964_90d0_4650fa91f0f9"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251817Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_519_0a38edf4_f633_4e69_ba12_be7b2617fee9"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000251818Member"
      id="t_226_66479573_675f_8998_407a_d592db4e68d5">BlackRock LifePath&#xae; ESG Index 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000251818Member"
      id="t_227_9952736e_c3ff_5eb1_7bb9_b0201e352ac0">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000251818Member"
      id="t_228_638861a8_29e9_2cbb_2a90_a4fdffe074c1">LEYAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000251818Member"
      id="t_217_f9f29eed_9ace_475a_9982_c11095e7d27b">This semi-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; ESG Index 2070 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000251818Member"
      id="t_218_ccbf2c33_0400_410f_b718_2234e4f9d863">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000251818Member"
      id="t_219_8906ae95_a267_47c2_8849_31ae5ee9d3b6">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="D20251031_20260430_C000251818Member"
      id="t_220_96c0140f_dfa9_46bd_b2b4_3bd3f87f1c0f">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000251818Member"
      id="t_221_e7b926ce_1833_475a_9e63_39519e80ec10">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000251818Member"
      id="t_222_bfe02eaa_1cfb_4cbd_808c_a3f8ed4ef5dd"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;16&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.30&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000251818Member"
      decimals="INF"
      id="h_520_401c19f3_5511_4b6d_aeb0_b5eece013231"
      unitRef="USD">16</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000251818Member"
      decimals="4"
      id="h_521_44297553_9819_4a23_b130_cac8074f6b7d"
      unitRef="pure">0.0030</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000251818Member"
      id="t_223_59147a05_25a8_4703_8f4c_b246e8b919c7"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3,083,452&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;11&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;8&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000251818Member"
      decimals="INF"
      id="h_522_6cc526d8_62a6_4954_8b1b_3c2f454049be"
      unitRef="USD">3083452</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000251818Member"
      decimals="INF"
      id="h_523_cf93ce44_3df8_41ee_8c0f_149214b960a4"
      unitRef="Holding">11</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000251818Member"
      decimals="4"
      id="h_524_6765f12b_89c4_4871_82a9_0c1c439a86c1"
      unitRef="pure">0.08</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000251818Member"
      id="t_224_7e9495b3_e25f_4f01_82df_a91fb26d769b"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;99.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;37.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(38.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_525_d86b95fd_aad6_4ede_9f4c_e866be708c0f"
      unitRef="pure">0.995</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_526_de977c84_119f_42ac_97a0_ec5be37fffaf"
      unitRef="pure">0.378</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_527_74688def_5930_4c08_9121_68ddb819aa0e"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_528_ff61bb20_d537_4d26_be13_fc3e6bb0c5c5"
      unitRef="pure">-0.383</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000251818Member"
      id="t_225_ba948563_f882_fcbd_a8e2_2ba2810e08b4"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_529_aade42ef_d5e8_494e_b3aa_2b8687285e6b"
      unitRef="pure">0.510</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_530_0396b89e_276e_46a6_afe6_23d378fd5838"
      unitRef="pure">0.201</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_531_59659e05_d3bb_41fb_95be_2584338d3dfb"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_532_13dbbc7d_3362_4490_a547_661184ba4f5c"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_533_738dd1ae_1d0f_4ca1_9fc3_d48b86b17789"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_534_a7985ac4_bd5e_4c6f_8d2d_826b4a404a69"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_535_0bf290bc_3402_4a3b_bf24_de50fcb57547"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_536_026d61fe_c3e9_4052_ac22_60d1777000ff"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251818Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_537_1677eba5_ab0d_4bd7_8eb2_68d65adfcf69"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000251819Member"
      id="t_234_6cc25def_ee12_9b02_5b13_90d9a95faf9d">BlackRock LifePath&#xae; ESG Index 2070 Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000251819Member"
      id="t_235_ffb83986_5678_1603_be3b_6243416d6a48">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000251819Member"
      id="t_236_92d9b8e0_2999_0bc4_cd6b_ec5bdf0241e2">LEYKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000251819Member"
      id="t_225_ecfbdd3e_e4ba_4ead_963e_20fc03512203">This semi-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; ESG Index 2070 Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000251819Member"
      id="t_226_a7abfd59_eb1a_4cf4_b473_d4ebb58e6cfd">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000251819Member"
      id="t_227_2c6707f0_9ad6_402c_9441_8cce308657bf">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="D20251031_20260430_C000251819Member"
      id="t_228_e2bf0488_ef45_4f7f_b4c1_4f1234f53096">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000251819Member"
      id="t_229_ad593cf0_7560_49e2_b4d0_414ec2bb4f09">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000251819Member"
      id="t_230_ca7aeac8_0754_4310_9343_ab7507e9696d"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;0&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.00&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(c)(d)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than $1.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(d)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Rounds to less than 0.01%.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000251819Member"
      decimals="INF"
      id="h_538_fb74c99f_aefc_4433_8522_23a5edbb32e8"
      unitRef="USD">0</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000251819Member"
      decimals="4"
      id="h_539_a12ca0e9_4122_4827_a3fb_52a1aa5c1489"
      unitRef="pure">0.0000</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000251819Member"
      id="t_231_3da5bad0_d95c_455f_9665_addac0fa4ad8"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3,083,452&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;11&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;8&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000251819Member"
      decimals="INF"
      id="h_540_6e95d541_1988_45d0_b5d8_e7f082d44b79"
      unitRef="USD">3083452</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000251819Member"
      decimals="INF"
      id="h_541_aaf93141_dee7_4267_a5c0_1899b286365c"
      unitRef="Holding">11</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000251819Member"
      decimals="4"
      id="h_542_95325877_3f2d_4d92_b172_0497bb45a74f"
      unitRef="pure">0.08</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000251819Member"
      id="t_232_3e1502f7_47a7_4cfd_b45c_e74ce8387e26"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;99.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;37.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(38.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_543_74d78f54_34eb_49c8_9f4e_e1460a28a3f0"
      unitRef="pure">0.995</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_544_ba3cd039_9b7c_493d_b945_a08b6a899adf"
      unitRef="pure">0.378</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_545_18cf8755_2027_4dcb_9e00_4fd2b8dcca31"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_546_becfabc1_8a60_463a_8feb_34e69a947d95"
      unitRef="pure">-0.383</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000251819Member"
      id="t_233_48f79981_bb8b_7cf7_968e_6bd8a461be1c"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;20.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;10.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;6.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_547_e73c7105_2ae0_4619_8530_1170af872ab3"
      unitRef="pure">0.510</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_548_ed827805_b122_4578_8291_c575e204c909"
      unitRef="pure">0.201</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_549_14e3fefa_a078_4121_aec8_b765b376c04d"
      unitRef="pure">0.108</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_550_42744054_c4a2_49db_8ab0_bfc826997df8"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_551_b2fec110_be86_4f41_877f_cc9c7eb9383c"
      unitRef="pure">0.041</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_552_36b28451_628c_4015_8dff_3755a39ceb8c"
      unitRef="pure">0.032</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_553_1045604a_8bb3_46eb_a9f3_2d78e0e448ef"
      unitRef="pure">0.027</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_554_97869ff7_c727_4317_a865_85bd0221b7b7"
      unitRef="pure">0.016</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000251819Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_555_a9db5d9b_e3a8_4dbc_9d15_6cbb41b47259"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220930Member"
      id="t_242_fd0fd074_2e01_11c1_4e63_01a39648f294">BlackRock LifePath&#xae; ESG Index Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220930Member"
      id="t_243_78cdfaf9_f462_3faf_7659_17a8a5bcbded">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220930Member"
      id="t_244_cf5aefad_3457_161a_496d_edf76cc78c69">LERIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220930Member"
      id="t_233_bcefd5b4_09c0_433d_86e8_32f6325ae921">This semi-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; ESG Index Retirement Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220930Member"
      id="t_234_2494fda9_6901_4bfb_9e5d_b5d73152a897">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220930Member"
      id="t_235_4fcd649a_1888_440b_8f60_48703cd1622c">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="D20251031_20260430_C000220930Member"
      id="t_236_3d0825bf_3fb9_4cc5_acb7_03b6f8afa120">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220930Member"
      id="t_237_22f512f6_8139_4746_9bcd_f42b8be6db2b">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220930Member"
      id="t_238_2115ad50_42e8_427f_bcfe_813c4b5bbc3f"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;5&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.10&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220930Member"
      decimals="INF"
      id="h_556_113faafe_4bfd_4911_9695_761b5d4dfcab"
      unitRef="USD">5</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220930Member"
      decimals="4"
      id="h_557_6e65e803_9a03_4c9b_8fae_167d475b3de1"
      unitRef="pure">0.0010</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220930Member"
      id="t_239_184a6c4f_5ac2_4339_ada9_4adae0484621"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;13,979,060&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;18&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220930Member"
      decimals="INF"
      id="h_558_9c5d7aa8_857d_493f_8c7b_302752a429b5"
      unitRef="USD">13979060</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220930Member"
      decimals="INF"
      id="h_559_758f7ce1_6f9e_4c23_aef9_e4ac4bb2aed4"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220930Member"
      decimals="4"
      id="h_560_61d7df61_a372_47d4_b1af_d24a2d925321"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220930Member"
      id="t_245_7d265727_fbb8_6a3f_e316_6ac9dfe06c09">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;59.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;40.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;18.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(18.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;21.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;p style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0; margin: 0;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0;"&gt;(a)&lt;/sup&gt;&lt;/p&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;p style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0; margin: 0;"&gt;Excludes short-term securities.&lt;/p&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_561_4990caa3_58b4_47f3_ab3f_9ad22586b42e"
      unitRef="pure">0.591</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_562_47d2ab97_25f7_4f75_81e5_8a20eda6c54b"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_563_26453b8c_0d94_4592_8bd0_f7deda5b8cfd"
      unitRef="pure">0.189</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_564_930cc39d_5313_4c56_a576_c214af150148"
      unitRef="pure">-0.187</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220930Member"
      id="t_246_e61e5648_1e25_e76a_d729_d59dd804bf9e">
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;21.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;p style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0; margin: 0;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0;"&gt;(a)&lt;/sup&gt;&lt;/p&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;p style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0; margin: 0;"&gt;Excludes short-term securities.&lt;/p&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_565_5921775f_0547_4a27_a99e_f208b8c3969c"
      unitRef="pure">0.515</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_566_43e8839b_00ef_43ae_a5b5_df096d0a975e"
      unitRef="pure">0.212</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_567_b5db2a72_7982_4b91_88d5_5597e64884b8"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_568_bc192097_a52e_4e66_b39d_18aa7e8d65fd"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_569_d1677212_a8d0_42f1_ba90_73a72ccdaa51"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_570_f661eb8a_054a_4b6a_b5a7_a02eea06b58c"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_571_6ee303d7_1958_4b1b_a843_17c4a83413ae"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_572_409621f6_e1f1_4110_86e4_fcf75a45927a"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_573_edf630fe_4c05_4461_a211_ba4426336b90"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220930Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_574_486da9ae_ae0e_49d6_8742_09465644b16c"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220931Member"
      id="t_249_352ec605_ad49_d920_8992_a5e8ba6379f6">BlackRock LifePath&#xae; ESG Index Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220931Member"
      id="t_250_831ed94d_50a0_2412_36e1_25ebb6b6e72f">Investor A Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220931Member"
      id="t_251_836201d8_5f6a_f56d_fc01_fda0e4f7358b">LERAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220931Member"
      id="t_241_4e62ee6b_7493_481e_a19b_de075bbbb00c">This semi-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; ESG Index Retirement Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220931Member"
      id="t_242_37740664_7965_4f17_ba32_2f6eba28076f">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220931Member"
      id="t_243_32933bbd_c99b_4e02_ae58_33ae3e34fadb">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="D20251031_20260430_C000220931Member"
      id="t_244_5c8750d3_722b_46c1_9557_1a21fb40acb9">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220931Member"
      id="t_245_898e3cfa_c622_4d1b_a33a_853afe0a673e">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220931Member"
      id="t_246_8f043c1e_2e8d_4dab_8213_3e91162a0e5b"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;18&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.35&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220931Member"
      decimals="INF"
      id="h_575_84e14c00_9f25_4048_a05e_9cfe86ef9f8d"
      unitRef="USD">18</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220931Member"
      decimals="4"
      id="h_576_e1945eea_e5bd_464f_98b2_3dad08bad834"
      unitRef="pure">0.0035</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220931Member"
      id="t_247_54573b64_66b3_4850_b40a_3d606e15f603"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;13,979,060&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;18&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220931Member"
      decimals="INF"
      id="h_577_d731cb98_0f56_4069_94bf_bbccd1d2d157"
      unitRef="USD">13979060</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220931Member"
      decimals="INF"
      id="h_578_71869a11_6813_4455_9696_991a5464cca5"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220931Member"
      decimals="4"
      id="h_579_eb35b48f_5265_47e9_a0fb_010eaeeb97a1"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220931Member"
      id="t_248_c6707dfa_bb5c_4f32_a81f_f1290a40a13a"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;59.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;40.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;18.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(18.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;21.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_580_e924ed96_9b28_4e77_bf98_8746dd4db8e0"
      unitRef="pure">0.591</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_581_bb2b1512_5ab8_4543_92bb_191877c6b80c"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_582_52bff8aa_39cb_470a_a3b1_f7e361157301"
      unitRef="pure">0.189</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_583_647c539a_9f58_4c69_961f_fbba888e9608"
      unitRef="pure">-0.187</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220931Member"
      id="t_252_7877d99a_c1a2_2add_a117_f7d0b781812a"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;21.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesESGAwareUSAggregateBondETFMember"
      decimals="4"
      id="h_584_fa8dc8d3_fc13_47be_8a86_4a099d213063"
      unitRef="pure">0.515</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesESGAwareMSCIUSAETFMember"
      decimals="4"
      id="h_585_2b0f016b_fff9_4b2e_8daf_cdc8f246ac55"
      unitRef="pure">0.212</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesESGAwareMSCIEAFEETFMember"
      decimals="4"
      id="h_586_812317bc_bda0_4903_994d_f9ac345640e6"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesTIPSBondETFMember"
      decimals="4"
      id="h_587_851dfd8e_5177_499b_a278_52bf23606f6e"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesESGAwareMSCIEMETFMember"
      decimals="4"
      id="h_588_fd1ba4e9_b4a6_4b44_8de6_c7475a00b14f"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesESGAwareMSCIUSASmallCapETFMember"
      decimals="4"
      id="h_589_4580a667_528d_4dc2_bba3_def1c1e9a215"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesDevelopedRealEstateIndexFundClassKMember"
      decimals="4"
      id="h_590_f65bfa73_24cf_4d60_8a9d_fe785e5c272a"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesMSCIEAFESmallCapETFMember"
      decimals="4"
      id="h_591_92fd9442_11ca_4c95_8908_7b28c60cefd3"
      unitRef="pure">0.013</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesMSCICanadaETFMember"
      decimals="4"
      id="h_592_0eb8a558_1a7d_4294_a958_b97531ac7082"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220931Member_ISharesMSCIEmergingMarketsSmallCapETFMember"
      decimals="4"
      id="h_593_e4c1a63b_3222_43a4_a0ec_e3b0dd434b41"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:FundName
      contextRef="D20251031_20260430_C000220929Member"
      id="t_257_911a7ec2_aee6_0fb7_e940_bad1aeefea99">BlackRock LifePath&#xae; ESG Index Retirement Fund</oef:FundName>
    <oef:ClassName
      contextRef="D20251031_20260430_C000220929Member"
      id="t_258_74021439_da0c_8681_78d9_64ae60652745">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="D20251031_20260430_C000220929Member"
      id="t_259_03c44339_1ca9_734b_7e27_c1c0a44b943f">LERKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="D20251031_20260430_C000220929Member"
      id="t_249_60401a10_6960_4726_ba77_6b8fd7c8a770">This semi-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; ESG Index Retirement Fund (the &#x201c;Fund&#x201d;) for the period of November 1, 2025 to April 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="D20251031_20260430_C000220929Member"
      id="t_250_fbbef1d7_4b01_4b03_ae00_3fb5db223af6">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="D20251031_20260430_C000220929Member"
      id="t_251_08f0d571_4ebb_4d10_9488_15439111574e">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="D20251031_20260430_C000220929Member"
      id="t_252_95c0c06c_01b1_4ef2_9893_e8770ae45ca0">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="D20251031_20260430_C000220929Member"
      id="t_253_2692341b_9737_4128_b97c_097f3867a71a">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="D20251031_20260430_C000220929Member"
      id="t_254_bf9c95d3_bb54_4604_945e_6889fb224b1d"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&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 six months&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; 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; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;3&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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.05&lt;span&gt;%&lt;/span&gt;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)(b)&lt;/sup&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Annualized.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="D20251031_20260430_C000220929Member"
      decimals="INF"
      id="h_594_305e8b8f_9b7f_4289_8722_aa89798f824c"
      unitRef="USD">3</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="D20251031_20260430_C000220929Member"
      decimals="4"
      id="h_595_732cf4f7_35db_4821_8649_818cf8a6cb83"
      unitRef="pure">0.0005</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="D20251031_20260430_C000220929Member"
      id="t_255_07032648_ca2b_4a99_ac07_9944e4d97b1c"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;13,979,060&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;12&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;18&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260430_C000220929Member"
      decimals="INF"
      id="h_596_b2eca4fa_e41d_411c_bd29_c0d1c108ca53"
      unitRef="USD">13979060</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260430_C000220929Member"
      decimals="INF"
      id="h_597_de4e3a97_3e9f_4ece_896f_d9bf68e3e71b"
      unitRef="Holding">12</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="D20251031_20260430_C000220929Member"
      decimals="4"
      id="h_598_58a49c2d_5292_4678_baa2_b98276c15b3c"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220929Member"
      id="t_256_95165a85_e9a6_439d_834f_629558682235"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of April 30, 2026)&lt;/div&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; 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); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;Asset Type&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed-Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;59.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Equity Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;40.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Money Market Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;18.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; 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;(18.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; 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="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;21.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="TI20260430_C000220929Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_599_b65c3f2c_4c21_4318_a646_e6cef4cecf9f"
      unitRef="pure">0.591</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220929Member_EquityFundsSecuritiesMember"
      decimals="4"
      id="h_600_1233e003_547b_4a58_add0_2132c00a2394"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220929Member_MoneyMarketFundsMember"
      decimals="4"
      id="h_601_953eda9b_c9df_46ab_9597_0634603e89b3"
      unitRef="pure">0.189</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="TI20260430_C000220929Member_LiabilitiesInExcessOfOtherAssetsMember"
      decimals="4"
      id="h_602_b2cc9386_eae3_4d99_ab87_bfff75308b24"
      unitRef="pure">-0.187</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock
      contextRef="D20251031_20260430_C000220929Member"
      id="t_260_bad18496_a56d_89f6_add7_716ddc70176c"> 
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; 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; 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; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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;(a)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of&lt;br/&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware U.S. Aggregate Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;51.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;21.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EAFE ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares TIPS Bond ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI EM ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;4.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares ESG Aware MSCI USA Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares Developed Real Estate Index Fund, Class K&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; 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; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;iShares MSCI Canada ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;1.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;iShares MSCI Emerging Markets Small-Cap ETF&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; 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;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; 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="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 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; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  </oef:LargestHoldingsTableTextBlock>
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        <link:footnoteArc
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        <link:loc
          xlink:href="#h_343_1f864df4_ba77_4da9_945f_8b50d1b47563"
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        <link:footnote id="f_0035_000058" xlink:label="f_0035_000058" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;">Excludes short-term securities.</xhtml:div></link:footnote>
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        <link:footnote id="f_0039_000063" xlink:label="f_0039_000063" 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:loc
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        <link:loc
          xlink:href="#h_381_f141981e_8dcd_4985_bc49_55293e721152"
          xlink:label="h_381_f141981e_8dcd_4985_bc49_55293e721152"
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        <link:footnote id="f_0039_000062" xlink:label="f_0039_000062" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;">Excludes short-term securities.</xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#h_382_6fc112e1_1b29_471b_adcf_c648f6eef1b6"
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        <link:loc
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        <link:loc
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        <link:loc
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        <link:loc
          xlink:href="#h_389_d5383dc9_25e7_4ccb_867d_7251d610d6d4"
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          xlink:from="h_39_53c16f04_69f2_410e_bbb2_476ad2586057"
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          xlink:from="h_39_53c16f04_69f2_410e_bbb2_476ad2586057"
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          xlink:href="#h_390_07f83c26_ae7c_477c_8d9f_673cac662176"
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        <link:loc
          xlink:href="#h_391_e546e353_fea0_4a8c_a969_83b5bb5a6d40"
          xlink:label="h_391_e546e353_fea0_4a8c_a969_83b5bb5a6d40"
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        <link:footnote id="f_0041_000063" xlink:label="f_0041_000063" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;">Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.</xhtml:div></link:footnote>
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          xlink:href="#h_400_ff1f9606_01a9_415f_be60_e6bc18db90bc"
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