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Shareholder Report
 12 Months Ended
Dec. 31, 2024
USD ($)
Holding
Dec. 31, 2023
Shareholder Report [Line Items]    
Document Type N-CSR  
Amendment Flag false  
Registrant Name AMERICAN BEACON FUNDS  
Entity Central Index Key 0000809593  
Entity Investment Company Type N-1A  
Document Period End Date Dec. 31, 2024  
C000110026    
Shareholder Report [Line Items]    
Fund Name Stephens Small Cap Growth Fund  
Class Name Class A  
Trading Symbol SPWAX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Small Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 138  
Expense Ratio, Percent 1.28%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 2000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 2000 Growth Index reflects the market sectors in which the Fund invests.

  
AssetsNet $ 364,382,179  
Holdings Count | Holding 105  
Advisory Fees Paid, Amount $ 2,854,258  
InvestmentCompanyPortfolioTurnover 37.00%  
C000110027    
Shareholder Report [Line Items]    
Fund Name Stephens Small Cap Growth Fund  
Class Name Class C  
Trading Symbol SPWCX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Small Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 221  
Expense Ratio, Percent 2.06%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 2000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 2000 Growth Index reflects the market sectors in which the Fund invests.

  
AssetsNet $ 364,382,179  
Holdings Count | Holding 105  
Advisory Fees Paid, Amount $ 2,854,258  
InvestmentCompanyPortfolioTurnover 37.00%  
C000110028    
Shareholder Report [Line Items]    
Fund Name Stephens Small Cap Growth Fund  
Class Name Class R5  
Trading Symbol STSIX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Small Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 107  
Expense Ratio, Percent 0.99%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 2000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 2000 Growth Index reflects the market sectors in which the Fund invests.

  
AssetsNet $ 364,382,179  
Holdings Count | Holding 105  
Advisory Fees Paid, Amount $ 2,854,258  
InvestmentCompanyPortfolioTurnover 37.00%  
C000110029    
Shareholder Report [Line Items]    
Fund Name Stephens Small Cap Growth Fund  
Class Name Class Y  
Trading Symbol SPWYX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Small Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 113  
Expense Ratio, Percent 1.05%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 2000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 2000 Growth Index reflects the market sectors in which the Fund invests.

  
AssetsNet $ 364,382,179  
Holdings Count | Holding 105  
Advisory Fees Paid, Amount $ 2,854,258  
InvestmentCompanyPortfolioTurnover 37.00%  
C000110030    
Shareholder Report [Line Items]    
Fund Name Stephens Small Cap Growth Fund  
Trading Symbol STSGX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Small Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 137  
Expense Ratio, Percent 1.27%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 2000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 2000 Growth Index reflects the market sectors in which the Fund invests.

  
AssetsNet $ 364,382,179  
Holdings Count | Holding 105  
Advisory Fees Paid, Amount $ 2,854,258  
InvestmentCompanyPortfolioTurnover 37.00%  
C000213181    
Shareholder Report [Line Items]    
Fund Name Stephens Small Cap Growth Fund  
Class Name Class R6  
Trading Symbol STSRX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Small Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 104  
Expense Ratio, Percent 0.96%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 2000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 2000 Growth Index reflects the market sectors in which the Fund invests.

  
AssetsNet $ 364,382,179  
Holdings Count | Holding 105  
Advisory Fees Paid, Amount $ 2,854,258  
InvestmentCompanyPortfolioTurnover 37.00%  
C000110032    
Shareholder Report [Line Items]    
Fund Name Stephens Mid-Cap Growth Fund  
Class Name Class A  
Trading Symbol SMFAX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Mid-Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 128  
Expense Ratio, Percent 1.20%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell Midcap Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell Midcap Growth Index reflects the market sectors in which the Fund invests. 

  
AssetsNet $ 800,155,455  
Holdings Count | Holding 93  
Advisory Fees Paid, Amount $ 5,993,794  
InvestmentCompanyPortfolioTurnover 24.00%  
C000110033    
Shareholder Report [Line Items]    
Fund Name Stephens Mid-Cap Growth Fund  
Class Name Class C  
Trading Symbol SMFCX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Mid-Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 206  
Expense Ratio, Percent 1.94%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell Midcap Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell Midcap Growth Index reflects the market sectors in which the Fund invests. 

  
AssetsNet $ 800,155,455  
Holdings Count | Holding 93  
Advisory Fees Paid, Amount $ 5,993,794  
InvestmentCompanyPortfolioTurnover 24.00%  
C000110034    
Shareholder Report [Line Items]    
Fund Name Stephens Mid-Cap Growth Fund  
Class Name Class R5  
Trading Symbol SFMIX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Mid-Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 95  
Expense Ratio, Percent 0.89%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell Midcap Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell Midcap Growth Index reflects the market sectors in which the Fund invests. 

  
AssetsNet $ 800,155,455  
Holdings Count | Holding 93  
Advisory Fees Paid, Amount $ 5,993,794  
InvestmentCompanyPortfolioTurnover 24.00%  
C000110035    
Shareholder Report [Line Items]    
Fund Name Stephens Mid-Cap Growth Fund  
Class Name Class Y  
Trading Symbol SMFYX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Mid-Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 101  
Expense Ratio, Percent 0.95%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell Midcap Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell Midcap Growth Index reflects the market sectors in which the Fund invests. 

  
AssetsNet $ 800,155,455  
Holdings Count | Holding 93  
Advisory Fees Paid, Amount $ 5,993,794  
InvestmentCompanyPortfolioTurnover 24.00%  
C000110031    
Shareholder Report [Line Items]    
Fund Name Stephens Mid-Cap Growth Fund  
Trading Symbol STMGX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Mid-Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 123  
Expense Ratio, Percent 1.15%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell Midcap Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell Midcap Growth Index reflects the market sectors in which the Fund invests. 

  
AssetsNet $ 800,155,455  
Holdings Count | Holding 93  
Advisory Fees Paid, Amount $ 5,993,794  
InvestmentCompanyPortfolioTurnover 24.00%  
C000210485    
Shareholder Report [Line Items]    
Fund Name Stephens Mid-Cap Growth Fund  
Class Name Class R6  
Trading Symbol SFMRX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon Stephens Mid-Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 94  
Expense Ratio, Percent 0.88%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell Midcap Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell Midcap Growth Index reflects the market sectors in which the Fund invests. 

  
AssetsNet $ 800,155,455  
Holdings Count | Holding 93  
Advisory Fees Paid, Amount $ 5,993,794  
InvestmentCompanyPortfolioTurnover 24.00%  
C000110036    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Value Fund  
Class Name Class A  
Trading Symbol BWLAX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Man Large Cap Value Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 129  
Expense Ratio, Percent 1.20%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Value Index as the broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Value Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 239,711,367  
Holdings Count | Holding 104  
Advisory Fees Paid, Amount $ 1,736,726  
InvestmentCompanyPortfolioTurnover 64.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Value Fund (formerly known as American Beacon Bridgeway Large Cap Value Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by March 1, 2025  at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000110037    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Value Fund  
Class Name Class C  
Trading Symbol BWLCX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Man Large Cap Value Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 207  
Expense Ratio, Percent 1.93%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Value Index as the broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Value Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 239,711,367  
Holdings Count | Holding 104  
Advisory Fees Paid, Amount $ 1,736,726  
InvestmentCompanyPortfolioTurnover 64.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Value Fund (formerly known as American Beacon Bridgeway Large Cap Value Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by March 1, 2025  at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000110038    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Value Fund  
Class Name Class R5  
Trading Symbol BRLVX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Man Large Cap Value Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 88  
Expense Ratio, Percent 0.81%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Value Index as the broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Value Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 239,711,367  
Holdings Count | Holding 104  
Advisory Fees Paid, Amount $ 1,736,726  
InvestmentCompanyPortfolioTurnover 64.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Value Fund (formerly known as American Beacon Bridgeway Large Cap Value Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by March 1, 2025  at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000110039    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Value Fund  
Class Name Class Y  
Trading Symbol BWLYX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Man Large Cap Value Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 97  
Expense Ratio, Percent 0.90%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Value Index as the broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Value Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 239,711,367  
Holdings Count | Holding 104  
Advisory Fees Paid, Amount $ 1,736,726  
InvestmentCompanyPortfolioTurnover 64.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Value Fund (formerly known as American Beacon Bridgeway Large Cap Value Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by March 1, 2025  at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000110040    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Value Fund  
Trading Symbol BWLIX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Man Large Cap Value Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 128  
Expense Ratio, Percent 1.19%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Value Index as the broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Value Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 239,711,367  
Holdings Count | Holding 104  
Advisory Fees Paid, Amount $ 1,736,726  
InvestmentCompanyPortfolioTurnover 64.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Value Fund (formerly known as American Beacon Bridgeway Large Cap Value Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by March 1, 2025  at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000190448    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Value Fund  
Class Name Class R6  
Trading Symbol BWLRX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Man Large Cap Value Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 88  
Expense Ratio, Percent 0.81%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Value Index as the broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Value Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 239,711,367  
Holdings Count | Holding 104  
Advisory Fees Paid, Amount $ 1,736,726  
InvestmentCompanyPortfolioTurnover 64.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Value Fund (formerly known as American Beacon Bridgeway Large Cap Value Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by March 1, 2025  at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000144085    
Shareholder Report [Line Items]    
Fund Name AHL Managed Futures Strategy Fund  
Class Name Class A  
Trading Symbol AHLAX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Managed Futures Strategy Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 194  
Expense Ratio, Percent 1.92%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 3,072,928,252  
Holdings Count | Holding 16  
Advisory Fees Paid, Amount $ 44,861,883  
C000144086    
Shareholder Report [Line Items]    
Fund Name AHL Managed Futures Strategy Fund  
Class Name Class C  
Trading Symbol AHLCX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Managed Futures Strategy Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 260  
Expense Ratio, Percent 2.59%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 3,072,928,252  
Holdings Count | Holding 16  
Advisory Fees Paid, Amount $ 44,861,883  
C000144088    
Shareholder Report [Line Items]    
Fund Name AHL Managed Futures Strategy Fund  
Class Name Class R5  
Trading Symbol AHLIX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Managed Futures Strategy Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 155  
Expense Ratio, Percent 1.53%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 3,072,928,252  
Holdings Count | Holding 16  
Advisory Fees Paid, Amount $ 44,861,883  
C000144087    
Shareholder Report [Line Items]    
Fund Name AHL Managed Futures Strategy Fund  
Class Name Class Y  
Trading Symbol AHLYX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Managed Futures Strategy Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 165  
Expense Ratio, Percent 1.63%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 3,072,928,252  
Holdings Count | Holding 16  
Advisory Fees Paid, Amount $ 44,861,883  
C000144089    
Shareholder Report [Line Items]    
Fund Name AHL Managed Futures Strategy Fund  
Trading Symbol AHLPX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Managed Futures Strategy Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 193  
Expense Ratio, Percent 1.91%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 3,072,928,252  
Holdings Count | Holding 16  
Advisory Fees Paid, Amount $ 44,861,883  
C000162332    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Growth Fund  
Class Name Class A  
Trading Symbol BLYAX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Large Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 122  
Expense Ratio, Percent 1.09%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Growth Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 201,325,898  
Holdings Count | Holding 71  
Advisory Fees Paid, Amount $ 1,095,857  
InvestmentCompanyPortfolioTurnover 52.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Growth Fund (formerly known as American Beacon Bridgeway Large Cap Growth Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by May 1, 2025 at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000162333    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Growth Fund  
Class Name Class C  
Trading Symbol BLYCX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Large Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 204  
Expense Ratio, Percent 1.83%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Growth Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 201,325,898  
Holdings Count | Holding 71  
Advisory Fees Paid, Amount $ 1,095,857  
InvestmentCompanyPortfolioTurnover 52.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Growth Fund (formerly known as American Beacon Bridgeway Large Cap Growth Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by May 1, 2025 at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000162334    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Growth Fund  
Class Name Class R5  
Trading Symbol BRLGX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Large Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 90  
Expense Ratio, Percent 0.80%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Growth Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 201,325,898  
Holdings Count | Holding 71  
Advisory Fees Paid, Amount $ 1,095,857  
InvestmentCompanyPortfolioTurnover 52.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Growth Fund (formerly known as American Beacon Bridgeway Large Cap Growth Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by May 1, 2025 at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000162336    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Growth Fund  
Class Name Class Y  
Trading Symbol BLYYX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Large Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 93  
Expense Ratio, Percent 0.83%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Growth Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 201,325,898  
Holdings Count | Holding 71  
Advisory Fees Paid, Amount $ 1,095,857  
InvestmentCompanyPortfolioTurnover 52.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Growth Fund (formerly known as American Beacon Bridgeway Large Cap Growth Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by May 1, 2025 at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000162335    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Growth Fund  
Trading Symbol BLYPX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Large Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 125  
Expense Ratio, Percent 1.12%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Growth Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 201,325,898  
Holdings Count | Holding 71  
Advisory Fees Paid, Amount $ 1,095,857  
InvestmentCompanyPortfolioTurnover 52.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Growth Fund (formerly known as American Beacon Bridgeway Large Cap Growth Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by May 1, 2025 at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000202403    
Shareholder Report [Line Items]    
Fund Name Man Large Cap Growth Fund  
Class Name Class R6  
Trading Symbol BLYRX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Large Cap Growth Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 86  
Expense Ratio, Percent 0.77%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the Russell 1000 Growth Index as broad-based securities market index to comply with a new regulatory requirement. The Russell 1000 Growth Index reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 201,325,898  
Holdings Count | Holding 71  
Advisory Fees Paid, Amount $ 1,095,857  
InvestmentCompanyPortfolioTurnover 52.00%  
Material Fund Change Adviser [Text Block]

The Board of the Trust, at the recommendation of the Manager, approved; (i) the termination of the investment advisory agreement among the Manager, Bridgeway Capital Management, LLC and the Trust, on behalf of the American Beacon Man Large Cap Growth Fund (formerly known as American Beacon Bridgeway Large Cap Growth Fund), effective April 30, 2024, and (ii) a new investment advisory agreement among the Manager, Numeric Investors LLC, and the Trust on behalf of the Funds, effective May 1, 2024.

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by May 1, 2025 at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000213183    
Shareholder Report [Line Items]    
Fund Name AHL TargetRisk Fund  
Class Name Class A  
Trading Symbol AHTAX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL TargetRisk Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Material Fund Change Notice [Text Block] This report describes material changes to the Fund that occurred during the reporting period.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 156  
Expense Ratio, Percent 1.51%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Dec. 31, 2018  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR and Bloomberg Global-Aggregate Total Return Index Value Hedged USD are replacing the 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD and the MSCI World Index as the broad-based securities market indices to comply with a new regulatory requirement. The 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD reflects the market sectors in which the Fund invests.

  
Material Change Date   Dec. 31, 2023
AssetsNet $ 277,718,436  
Holdings Count | Holding 18  
Advisory Fees Paid, Amount $ 2,597,444  
InvestmentCompanyPortfolioTurnover 138.00%  
Material Fund Change Expenses [Text Block]

Effective May 1, 2024, the contractual expense limitation for the A Class was increased from 0.00% to 1.44% (excluding taxes, interest, brokerage commissions, acquired fund fees and expenses, securities lending fees, expenses related to securities sold short, litigation and other extraordinary expenses).

  
Summary of Change Legend [Text Block]

This is a summary of certain changes to the Fund since December 31, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by March 1, 2025  at www.americanbeaconfunds.com/literature or upon request at 800-658-5811.

 This is a summary of certain changes to the Fund since December 31, 2023.
C000213182    
Shareholder Report [Line Items]    
Fund Name AHL TargetRisk Fund  
Class Name Class C  
Trading Symbol AHACX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL TargetRisk Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 225  
Expense Ratio, Percent 2.19%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Dec. 31, 2018  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR and Bloomberg Global-Aggregate Total Return Index Value Hedged USD are replacing the 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD and the MSCI World Index as the broad-based securities market indices to comply with a new regulatory requirement. The 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD reflects the market sectors in which the Fund invests.

  
AssetsNet $ 277,718,436  
Holdings Count | Holding 18  
Advisory Fees Paid, Amount $ 2,597,444  
InvestmentCompanyPortfolioTurnover 138.00%  
C000207200    
Shareholder Report [Line Items]    
Fund Name AHL TargetRisk Fund  
Class Name Class R5  
Trading Symbol AHTIX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL TargetRisk Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 108  
Expense Ratio, Percent 1.04%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Dec. 31, 2018  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR and Bloomberg Global-Aggregate Total Return Index Value Hedged USD are replacing the 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD and the MSCI World Index as the broad-based securities market indices to comply with a new regulatory requirement. The 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD reflects the market sectors in which the Fund invests.

  
AssetsNet $ 277,718,436  
Holdings Count | Holding 18  
Advisory Fees Paid, Amount $ 2,597,444  
InvestmentCompanyPortfolioTurnover 138.00%  
C000207201    
Shareholder Report [Line Items]    
Fund Name AHL TargetRisk Fund  
Class Name Class Y  
Trading Symbol AHTYX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL TargetRisk Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 123  
Expense Ratio, Percent 1.19%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Dec. 31, 2018  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR and Bloomberg Global-Aggregate Total Return Index Value Hedged USD are replacing the 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD and the MSCI World Index as the broad-based securities market indices to comply with a new regulatory requirement. The 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD reflects the market sectors in which the Fund invests.

  
AssetsNet $ 277,718,436  
Holdings Count | Holding 18  
Advisory Fees Paid, Amount $ 2,597,444  
InvestmentCompanyPortfolioTurnover 138.00%  
C000207202    
Shareholder Report [Line Items]    
Fund Name AHL TargetRisk Fund  
Trading Symbol AHTPX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL TargetRisk Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 158  
Expense Ratio, Percent 1.53%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Dec. 31, 2018  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR and Bloomberg Global-Aggregate Total Return Index Value Hedged USD are replacing the 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD and the MSCI World Index as the broad-based securities market indices to comply with a new regulatory requirement. The 60% MSCI ® World Index Hedged to USD / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged to USD reflects the market sectors in which the Fund invests.

  
AssetsNet $ 277,718,436  
Holdings Count | Holding 18  
Advisory Fees Paid, Amount $ 2,597,444  
InvestmentCompanyPortfolioTurnover 138.00%  
C000244413    
Shareholder Report [Line Items]    
Fund Name AHL Multi-Alternatives Fund  
Class Name Class A  
Trading Symbol AHMAX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Multi-Alternatives Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 159  
Expense Ratio, Percent 1.56%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Aug. 17, 2023  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 37,959,237  
Holdings Count | Holding 15  
Advisory Fees Paid, Amount $ 0  
InvestmentCompanyPortfolioTurnover 141.00%  
C000244414    
Shareholder Report [Line Items]    
Fund Name AHL Multi-Alternatives Fund  
Class Name Class C  
Trading Symbol AHMCX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Multi-Alternatives Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 235  
Expense Ratio, Percent 2.31%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Aug. 17, 2023  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 37,959,237  
Holdings Count | Holding 15  
Advisory Fees Paid, Amount $ 0  
InvestmentCompanyPortfolioTurnover 141.00%  
C000244412    
Shareholder Report [Line Items]    
Fund Name AHL Multi-Alternatives Fund  
Class Name Class Y  
Trading Symbol AHMYX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Multi-Alternatives Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 136  
Expense Ratio, Percent 1.33%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Aug. 17, 2023  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 37,959,237  
Holdings Count | Holding 15  
Advisory Fees Paid, Amount $ 0  
InvestmentCompanyPortfolioTurnover 141.00%  
C000244411    
Shareholder Report [Line Items]    
Fund Name AHL Multi-Alternatives Fund  
Class Name Class R6  
Trading Symbol AHMRX  
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about American Beacon AHL Multi-Alternatives Fund for the period of January 1, 2024 to December 31, 2024.  
Shareholder Report Annual or Semi-Annual Annual Shareholder Report  
Additional Information [Text Block] You can find additional information about the Fund at www.americanbeaconfunds.com/literature. You can also request this information by contacting us at 800-658-5811.  
Additional Information Phone Number 800-658-5811  
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.americanbeaconfunds.com/literature</span>  
Expenses Paid, Amount $ 125  
Expense Ratio, Percent 1.23%  
Performance Past Does Not Indicate Future [Text] Performance shown is historical and is not indicative of future returns.  
Performance Inception Date Aug. 17, 2023  
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.  
Performance Table Market Index Changed [Text Block]

The S&P 500 Index TR is replacing the ICE BofA US 3-Month Treasury Bill Index as broad-based securities market index to comply with a new regulatory requirement. 

  
AssetsNet $ 37,959,237  
Holdings Count | Holding 15  
Advisory Fees Paid, Amount $ 0  
InvestmentCompanyPortfolioTurnover 141.00%