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    <dei:EntityRegistrantName contextRef="P01_01_2026To06_30_2026" id="ixv-80901">American Funds Strategic Bond Fund</dei:EntityRegistrantName>
    <dei:DocumentPeriodEndDate contextRef="P01_01_2026To06_30_2026" id="ixv-80902">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:FundName
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      id="ixv-72">American Funds&#xae; Strategic Bond Fund</oef:FundName>
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      id="ixv-80903">Class A</oef:ClassName>
    <dei:TradingSymbol
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      id="ixv-80904">ANBAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      id="ixv-80905">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund&#160;(the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
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      id="ixv-80906">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      id="ixv-80909">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-A. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
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      id="ixv-80914">capitalgroup.com/mutual-fund-literature-A</oef:AddlInfoWebsite>
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      id="ixv-80916">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
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      id="ixv-86">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid; padding: 3pt 6pt; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right: 0.5pt solid rgb(255, 255, 255); width: 126.9pt;"&gt;&lt;div style="font-weight:bolder;display:inline;"&gt;Share class&lt;/div&gt;&lt;/td&gt;&lt;td style="break-inside: avoid; padding: 3pt 6pt; width: 171.072pt; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right: 0.5pt solid rgb(255, 255, 255);"&gt;&lt;div style="font-weight:bolder;display:inline;"&gt;Costs of a $10,000 investment&lt;/div&gt;&lt;/td&gt;&lt;td style="break-inside: avoid; padding: 3pt 0px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; border-right: none;"&gt;&lt;div style="font-weight:bolder;display:inline;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class A&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none; letter-spacing: 0px; top: 0px;display:inline;"&gt;$&lt;/div&gt;35&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.70&lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      decimals="0"
      id="ixv-80917"
      unitRef="Unit_USD">35</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963304"
      unitRef="Unit_pure">0.007</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      id="ixv-113">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none; letter-spacing: 0px; top: 0px;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164473MemberoefClassAxis"
      decimals="-6"
      id="ixv-80919"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164473MemberoefClassAxis"
      decimals="0"
      id="ixv-80920"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      decimals="INF"
      id="ixv-80921"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      id="ixv-136">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0px; border-bottom: none;font-weight:bolder;display:inline;"&gt;&lt;div style="font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654771.jpg" style="display: block; width: 300pt;"/&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      id="ixv-149">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164473MemberoefClassAxis"
      id="ixv-80922">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-178">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80923">Class C</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80924">ANBCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80925">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80926">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80927">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-C. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80932">capitalgroup.com/mutual-fund-literature-C</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80934">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-191">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid; padding: 3pt 6pt; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right: 0.5pt solid rgb(255, 255, 255); width: 126.9pt;"&gt;&lt;div style="font-weight:bolder;display:inline;"&gt;Share class&lt;/div&gt;&lt;/td&gt;&lt;td style="break-inside: avoid; padding: 3pt 6pt; width: 171.072pt; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right: 0.5pt solid rgb(255, 255, 255);"&gt;&lt;div style="font-weight:bolder;display:inline;"&gt;Costs of a $10,000 investment&lt;/div&gt;&lt;/td&gt;&lt;td style="break-inside: avoid; padding: 3pt 0px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; border-right: none;"&gt;&lt;div style="font-weight:bolder;display:inline;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class C&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none; letter-spacing: 0px; top: 0px;display:inline;"&gt;$&lt;/div&gt;69&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;1.41&lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;*Annualized.</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      decimals="0"
      id="ixv-80935"
      unitRef="Unit_USD">69</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963322"
      unitRef="Unit_pure">0.0141</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-217">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none; letter-spacing: 0px; top: 0px;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;36&lt;/div&gt;&lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164475MemberoefClassAxis"
      decimals="-6"
      id="ixv-80938"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164475MemberoefClassAxis"
      decimals="0"
      id="ixv-80939"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      decimals="INF"
      id="ixv-80940"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-241">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0px; border-bottom: none;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654815.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-252">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the &lt;div style="letter-spacing: 0px; top: 0px;display:inline;"&gt;fund&#x2019;s &lt;/div&gt;board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164475MemberoefClassAxis"
      id="ixv-80941">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-280">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80942">Class F-1</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80943">ANBEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80944">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80945">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80946">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F1. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80951">capitalgroup.com/mutual-fund-literature-F1</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80953">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-292">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class F-1&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;34&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.69&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      decimals="0"
      id="ixv-80954"
      unitRef="Unit_USD">34</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963116"
      unitRef="Unit_pure">0.0069</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-316">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164476MemberoefClassAxis"
      decimals="-6"
      id="ixv-80956"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164476MemberoefClassAxis"
      decimals="0"
      id="ixv-80957"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      decimals="INF"
      id="ixv-80958"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-339">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654859.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-350">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164476MemberoefClassAxis"
      id="ixv-80959">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-376">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80960">Class F-2</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80961">ANBFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80962">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund&#160;(the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80963">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80966">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F2. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80969">capitalgroup.com/mutual-fund-literature-F2</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80975">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-389">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class F-2&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.43&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      decimals="0"
      id="ixv-80976"
      unitRef="Unit_USD">21</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963152"
      unitRef="Unit_pure">0.0043</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-413">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164460MemberoefClassAxis"
      decimals="-6"
      id="ixv-80978"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164460MemberoefClassAxis"
      decimals="0"
      id="ixv-80979"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      decimals="INF"
      id="ixv-80980"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-436">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654903.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-447">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164460MemberoefClassAxis"
      id="ixv-80981">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-473">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80982">Class F-3</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80983">ANBGX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80984">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80985">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80986">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F3. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80991">capitalgroup.com/mutual-fund-literature-F3</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80993">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-485">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class F-3&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;15&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.31&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      decimals="0"
      id="ixv-80994"
      unitRef="Unit_USD">15</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963134"
      unitRef="Unit_pure">0.0031</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-509">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000179994MemberoefClassAxis"
      decimals="-6"
      id="ixv-80996"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000179994MemberoefClassAxis"
      decimals="0"
      id="ixv-80997"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      decimals="INF"
      id="ixv-80998"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-532">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655299.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-543">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000179994MemberoefClassAxis"
      id="ixv-80999">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-569">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81000">Class 529-A</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81001">CANAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81002">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81003">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81004">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529A You can also request this information by contacting us at (800) 421-4225.&#160;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81008">capitalgroup.com/mutual-fund-literature-529A</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81011">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-581">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class 529-A&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;34&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.69&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      decimals="0"
      id="ixv-81012"
      unitRef="Unit_USD">34</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963170"
      unitRef="Unit_pure">0.0069</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-605">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164459MemberoefClassAxis"
      decimals="-6"
      id="ixv-81014"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164459MemberoefClassAxis"
      decimals="0"
      id="ixv-81015"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      decimals="INF"
      id="ixv-81016"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-628">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654595.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-639">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164459MemberoefClassAxis"
      id="ixv-81017">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-665">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81018">Class 529-C</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81019">CANCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81020">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81021">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81022">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529C. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81027">capitalgroup.com/mutual-fund-literature-529C</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81029">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-677">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class 529-C&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;72&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;1.46&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      decimals="0"
      id="ixv-81030"
      unitRef="Unit_USD">72</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963488"
      unitRef="Unit_pure">0.0146</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-701">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164470MemberoefClassAxis"
      decimals="-6"
      id="ixv-81032"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164470MemberoefClassAxis"
      decimals="0"
      id="ixv-81033"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      decimals="INF"
      id="ixv-81034"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-724">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654639.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-735">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164470MemberoefClassAxis"
      id="ixv-81035">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-761">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81036">Class 529-E</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81037">CANEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81038">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81039">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81040">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529E. You can also request this information by contacting us at (800) 421-4225.&#160;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81044">capitalgroup.com/mutual-fund-literature-529E</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81047">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-773">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class 529-E&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;44&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.90&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      decimals="0"
      id="ixv-81048"
      unitRef="Unit_USD">44</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963470"
      unitRef="Unit_pure">0.009</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-797">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164471MemberoefClassAxis"
      decimals="-6"
      id="ixv-81050"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164471MemberoefClassAxis"
      decimals="0"
      id="ixv-81051"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      decimals="INF"
      id="ixv-81052"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-820">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654683.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-831">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164471MemberoefClassAxis"
      id="ixv-81053">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-857">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81054">Class 529-F-2</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81055">FSBMX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81056">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81057">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81058">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F2. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81063">capitalgroup.com/mutual-fund-literature-529F2</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81065">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-869">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class 529-F-2&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;20&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.40&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      decimals="0"
      id="ixv-81066"
      unitRef="Unit_USD">20</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963448"
      unitRef="Unit_pure">0.004</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-893">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000224627MemberoefClassAxis"
      decimals="-6"
      id="ixv-81068"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000224627MemberoefClassAxis"
      decimals="0"
      id="ixv-81069"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      decimals="INF"
      id="ixv-81070"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-916">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655431.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-927">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000224627MemberoefClassAxis"
      id="ixv-81071">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-953">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81072">Class 529-F-3</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81073">FBSSX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81074">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81075">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81076">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F3. You can also request this information by contacting us at (800) 421-4225.&#160;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81080">capitalgroup.com/mutual-fund-literature-529F3</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81083">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-965">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class 529-F-3&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;17&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.35&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;*Annualized.</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      decimals="0"
      id="ixv-81084"
      unitRef="Unit_USD">17</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963655"
      unitRef="Unit_pure">0.0035</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-988">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000224628MemberoefClassAxis"
      decimals="-6"
      id="ixv-81087"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000224628MemberoefClassAxis"
      decimals="0"
      id="ixv-81088"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      decimals="INF"
      id="ixv-81089"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-1011">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655475.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-1022">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000224628MemberoefClassAxis"
      id="ixv-81090">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-1048">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81091">Class R-1</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81092">RANAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81093">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81094">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81095">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R1. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81099">capitalgroup.com/mutual-fund-literature-R1</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81102">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-1060">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-1&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;69&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;1.40&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      decimals="0"
      id="ixv-81103"
      unitRef="Unit_USD">69</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963673"
      unitRef="Unit_pure">0.014</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-1084">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164461MemberoefClassAxis"
      decimals="-6"
      id="ixv-81105"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164461MemberoefClassAxis"
      decimals="0"
      id="ixv-81106"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      decimals="INF"
      id="ixv-81107"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-1107">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654947.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-1118">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164461MemberoefClassAxis"
      id="ixv-81108">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-1144">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81109">Class R-2</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81110">RANBX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81111">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81112">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81113">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81117">capitalgroup.com/mutual-fund-literature-R2</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81120">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-1156">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-2&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;66&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;1.34&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      decimals="0"
      id="ixv-81121"
      unitRef="Unit_USD">66</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963691"
      unitRef="Unit_pure">0.0134</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-1180">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164462MemberoefClassAxis"
      decimals="-6"
      id="ixv-81123"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164462MemberoefClassAxis"
      decimals="0"
      id="ixv-81124"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      decimals="INF"
      id="ixv-81125"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-1203">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1654991.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-1214">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164462MemberoefClassAxis"
      id="ixv-81126">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-1240">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81127">Class R-2E</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81128">RANHX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81129">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81130">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81131">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2E. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81135">capitalgroup.com/mutual-fund-literature-R2E</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81138">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-1252">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-2E&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;55&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;1.12&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      decimals="0"
      id="ixv-81139"
      unitRef="Unit_USD">55</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963646"
      unitRef="Unit_pure">0.0112</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-1276">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164463MemberoefClassAxis"
      decimals="-6"
      id="ixv-81141"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164463MemberoefClassAxis"
      decimals="0"
      id="ixv-81142"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      decimals="INF"
      id="ixv-81143"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-1299">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655035.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-1310">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164463MemberoefClassAxis"
      id="ixv-81144">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-1336">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81145">Class R-3</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81146">RANCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81147">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81148">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81149">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R3. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81153">capitalgroup.com/mutual-fund-literature-R3</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81156">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-1348">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-3&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;47&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.95&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      decimals="0"
      id="ixv-81157"
      unitRef="Unit_USD">47</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963418"
      unitRef="Unit_pure">0.0095</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-1372">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164464MemberoefClassAxis"
      decimals="-6"
      id="ixv-81159"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164464MemberoefClassAxis"
      decimals="0"
      id="ixv-81160"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      decimals="INF"
      id="ixv-81161"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-1395">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655079.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-1406">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164464MemberoefClassAxis"
      id="ixv-81162">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-1432">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81163">Class R-4</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81164">RANEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81165">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81166">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81167">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R4. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81171">capitalgroup.com/mutual-fund-literature-R4</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81174">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-1444">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-4&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;32&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.64&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      decimals="0"
      id="ixv-81175"
      unitRef="Unit_USD">32</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963400"
      unitRef="Unit_pure">0.0064</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-1468">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164465MemberoefClassAxis"
      decimals="-6"
      id="ixv-81177"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164465MemberoefClassAxis"
      decimals="0"
      id="ixv-81178"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      decimals="INF"
      id="ixv-81179"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-1491">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655123.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-1502">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164465MemberoefClassAxis"
      id="ixv-81180">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-1528">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81181">Class R-5E</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81182">RANJX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81183">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81184">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81185">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5E. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81189">capitalgroup.com/mutual-fund-literature-R5E</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81192">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-1540">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-5E&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;23&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.47&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      decimals="0"
      id="ixv-81193"
      unitRef="Unit_USD">23</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963382"
      unitRef="Unit_pure">0.0047</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-1564">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164467MemberoefClassAxis"
      decimals="-6"
      id="ixv-81195"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164467MemberoefClassAxis"
      decimals="0"
      id="ixv-81196"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      decimals="INF"
      id="ixv-81197"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-1587">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655167.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-1598">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164467MemberoefClassAxis"
      id="ixv-81198">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-1624">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81199">Class R-5</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81200">RANFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81201">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81202">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81203">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81207">capitalgroup.com/mutual-fund-literature-R5</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81210">(800) 421-4225</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-1636">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-5&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;19&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.38&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      decimals="0"
      id="ixv-81211"
      unitRef="Unit_USD">19</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963598"
      unitRef="Unit_pure">0.0038</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-1660">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164466MemberoefClassAxis"
      decimals="-6"
      id="ixv-81213"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="PAsOn06_30_2026_C000164466MemberoefClassAxis"
      decimals="0"
      id="ixv-81214"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      decimals="INF"
      id="ixv-81215"
      unitRef="Unit_pure">0.56</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-1683">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655211.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-1694">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 12pt; color: rgb(0, 95, 158);"&gt;Changes in and disagreements with accountants&lt;/div&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 10pt; margin-left: 0; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; line-height: 11pt;"&gt;On December 10, 2025, Deloitte &amp;amp; Touche LLP (&#x201c;D&amp;amp;T&#x201d;) was dismissed and PricewaterhouseCoopers LLP was appointed as the fund&#x2019;s independent registered public accounting firm for the fiscal year ending December 31, 2026 audit. The change in the fund&#x2019;s independent registered public accounting firm was approved by the fund&#x2019;s board of trustees, including a majority of the independent trustees, upon recommendation of the audit committee, as part of a broader effort to update board oversight and fund operations. At no point during the fund&#x2019;s fiscal years ended December 31, 2024 and December 31, 2025 and the subsequent interim period through February 11, 2026, were there any disagreements between management and D&amp;amp;T on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.&lt;/div&gt;</oef:AccountantChngDisagreementsTextBlock>
    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164466MemberoefClassAxis"
      id="ixv-81216">2025-12-10</oef:AccountantChngDate>
    <oef:FundName
      contextRef="P01_01_2026To06_30_2026_C000164468MemberoefClassAxis"
      id="ixv-1720">American Funds&#xae; Strategic Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="P01_01_2026To06_30_2026_C000164468MemberoefClassAxis"
      id="ixv-81217">Class R-6</oef:ClassName>
    <dei:TradingSymbol
      contextRef="P01_01_2026To06_30_2026_C000164468MemberoefClassAxis"
      id="ixv-81218">RANGX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
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      id="ixv-81219">This semi-annual shareholder report contains important information about American Funds Strategic Bond Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
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      id="ixv-81220">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
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      id="ixv-81221">You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R6. You can also request this information by contacting us at (800) 421-4225.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
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      id="ixv-81225">capitalgroup.com/mutual-fund-literature-R6</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
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      id="ixv-81228">(800) 421-4225</oef:AddlInfoPhoneNumber>
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      id="ixv-1732">&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; font-family: 'Arial'; font-size: 10pt; font-weight: normal; line-height: 13pt; color: rgb(0, 0, 0);"&gt;&lt;div style="font-family: 'Times New Roman'; font-size: 11pt; line-height: 13pt; color: rgb(0, 95, 158);font-weight:bolder;display:inline;width:100%;"&gt;What were the fund costs for the last six months?&lt;/div&gt; (based on a hypothetical $10,000 investment)&lt;/div&gt;&lt;table style="text-align:start; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; margin-bottom: 3pt;"&gt;&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; background-color: rgb(0, 95, 158); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; height: 19.008pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt; width: 126.9pt;"&gt;Share class&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; width: 171.072pt; padding-right: 6pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); border-right-color: rgb(255, 255, 255); border-right-style: solid; border-right-width: 0.5pt;"&gt;Costs of a $10,000 investment&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 3pt; font-family: 'Times New Roman'; font-weight: bold; font-size: 10pt; line-height: 10pt; text-align: center; vertical-align: middle; color: rgb(255, 255, 255); width: 267.948pt; padding-right: 0; padding-bottom: 3pt; padding-left: 0; border-right-color: initial; border-right-style: none; border-right-width: initial;"&gt;Costs paid as a percentage of a $10,000 investment&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; height: 20pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; padding-right: 6pt; padding-left: 6pt; width: 126.9pt; vertical-align: bottom;"&gt;Class R-6&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; width: 171.072pt; padding-right: 6pt; padding-left: 6pt; vertical-align: bottom;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;15&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; font-size: 10pt; line-height: 10pt; text-align: center; white-space: nowrap; width: 267.948pt; padding-right: 0; padding-left: 0; vertical-align: bottom;"&gt;0.31&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;div style="font-size: smaller; vertical-align: super;display:inline;"&gt;*&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 8.5pt;"&gt;*Annualized.&lt;/div&gt;</oef:ExpensesTextBlock>
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      decimals="0"
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      unitRef="Unit_USD">15</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="P01_01_2026To06_30_2026_C000164468MemberoefClassAxis"
      decimals="INF"
      id="Fact_8963616"
      unitRef="Unit_pure">0.0031</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="P01_01_2026To06_30_2026_C000164468MemberoefClassAxis"
      id="ixv-1756">&lt;div style="margin-top: 10pt; margin-right: 0; margin-bottom: 3pt; margin-left: 0; font-family: 'Times New Roman'; font-weight: bold; font-size: 11pt; line-height: 11pt; letter-spacing: normal; color: rgb(0, 95, 158);"&gt;Key fund statistics&lt;/div&gt;&lt;table style="text-align:start; width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid;"&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt; border-top-color: rgb(153, 153, 153); border-top-style: solid; border-top-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Fund net assets (in millions)&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;&lt;div style="float: none;display:inline;"&gt;$&lt;/div&gt;21,244&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Total number of portfolio holdings&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;2,625&lt;/td&gt;&lt;/tr&gt;&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate including&lt;br/&gt;mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;56&lt;div style="display:inline;"&gt;%&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: rgb(153, 153, 153); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; text-align: left; width: 70%; font-weight: normal;"&gt;Portfolio turnover rate excluding mortgage dollar roll transactions&lt;/td&gt;&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: middle; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-top: 3pt; padding-bottom: 3pt; line-height: 9pt; padding-right: 0; padding-left: 0; white-space: nowrap;"&gt;36&lt;div style="display:inline;"&gt;%&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="PAsOn06_30_2026_C000164468MemberoefClassAxis"
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      id="ixv-81231"
      unitRef="Unit_USD">21244000000</us-gaap:AssetsNet>
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      decimals="0"
      id="ixv-81232"
      unitRef="Unit_Holding">2625</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-81233"
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      id="ixv-1779">&lt;div style="font-weight: normal; color: rgb(0, 0, 0); margin-top: 10pt; margin-right: 0; margin-bottom: 2.0016pt; margin-left: 10pt; font-family: 'Arial'; font-size: 10pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding-left: 27pt;"&gt;&lt;div style="font-weight: bold; font-family: 'Times New Roman'; font-size: 11pt; line-height: 11pt; letter-spacing: normal; text-transform: none; text-align: left; color: rgb(0, 95, 158); margin-top: 10pt; margin-bottom: 3pt; padding-bottom: 0; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;font-weight:bolder;display:inline;"&gt;Portfolio holdings by asset type&lt;/div&gt;&#160;(percent of net assets)&lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 25pt;"&gt;&lt;img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_1655255.jpg" style="display: block; width: 300pt;"/&gt;  &lt;/div&gt;&lt;div style="font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0);"&gt;&lt;div style="margin-top: 0; margin-right: 0; margin-bottom: 4pt; margin-left: 0; font-weight: normal; color: rgb(0, 0, 0); font-family: 'Arial'; font-size: 8pt; line-height: 9pt; padding-left: 157pt;"&gt;*Includes derivatives.&lt;/div&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:AccountantChngDisagreementsTextBlock
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    <oef:AccountantChngDate
      contextRef="P01_01_2026To06_30_2026_C000164468MemberoefClassAxis"
      id="ixv-81234">2025-12-10</oef:AccountantChngDate>
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