XML 72 R3.htm IDEA: XBRL DOCUMENT v3.25.0.1
Label Element Value
(American Beacon Funds) | (American Beacon Balanced Fund)  
Prospectus: rr_ProspectusTable  
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund’s investment objective is income and capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis. More information about these and other discounts is available from your financial professional and in “Choosing Your Share Class” on page  67 of the Prospectus and “Additional Purchase and Sale Information for A Class Shares” on page  78  of the Statement of Additional Information (“SAI”). With respect to purchases of shares through specific intermediaries, you may find additional information regarding sales charge discounts and waivers in Appendix A to the Fund’s Prospectus entitled “Intermediary Sales Charge Discounts, Waivers and Other Information.”
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. This Example reflects your costs as though C Class shares were held for the full 10-year period. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption of shares:
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 38% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 38.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, between 50% and 70% of the Fund’s total assets are invested in equity securities and between 30% and 50% of the Fund’s total assets are invested in debt securities.
The Manager allocates the assets of the Fund among different sub-advisors. The Manager believes that this strategy may help the Fund outperform other investment styles over the longer term while reducing volatility and downside risk.
The Fund’s equity investments may include common stocks, preferred stocks, convertible securities, including convertible preferred securities, master limited partnerships (“MLPs”), real estate investment trusts (“REITs”), depositary receipts, which may include American depositary receipts (“ADRs”) and global depositary receipts (“GDRs”), and U.S. dollar-denominated foreign stocks traded on U.S. exchanges (collectively referred to as “stocks”). The Fund’s investments in stocks include dividend-paying stocks. The Fund principally invests in large-capitalization and mid-capitalization companies.
The Fund’s sub-advisors select stocks that, in their opinion, have most or all of the following characteristics (relative to the S&P 500® Index):
above-average earnings growth potential,
below-average price to earnings ratio,
below-average price to book value ratio, and
above-average dividend yields.
Each of the Fund’s sub-advisors determines the earnings growth prospects of companies based upon a combination of internal and external research using fundamental analysis and considering changing economic trends. The sub-advisors typically seek to invest in companies that they believe to be undervalued at the time of purchase. The decision to sell a stock is typically based on the belief that the company is no longer considered undervalued or shows deteriorating fundamentals, or that better investment opportunities exist in other stocks.
The Fund’s debt securities may include: debentures; obligations of the U.S. Government, its agencies and instrumentalities, including U.S. Government-sponsored enterprises (some of which are not backed by the full faith and credit of the U.S. Government); corporate debt securities, such as notes and bonds; mortgage-backed and mortgage-related securities, including collateralized mortgage obligations (“CMOs”) and commercial mortgage-backed securities (“CMBSs”); asset-backed securities; and variable and floating rate securities, which pay interest at variable rates, certain of which are based on a lending rate.
The Fund will only buy debt securities that are deemed by the Manager or sub-advisors, as applicable, to be investment grade at the time of the purchase. If an investment held by the Fund is downgraded below investment grade, the Manager or sub-advisors, as applicable, will take action that they believe to be advantageous to the Fund. The Fund has no limitations regarding the duration of the debt securities it can buy.
In determining which debt securities to buy and sell, the Manager and the sub-advisors generally use either a “top-down” or “bottom-up” investment strategy, or a combination of both strategies. The top-down fixed income investment strategy is implemented as follows:
Develop an overall investment strategy, including a portfolio duration target, by examining the current trends in the U.S. economy.
Set desired portfolio duration structure by comparing the differences between corporate and U.S. Government securities of similar duration to judge their potential for optimal return in accordance with the target duration benchmark.
Determine the weightings of each security type by analyzing the difference in yield spreads between corporate and U.S. Government securities.
Select specific debt securities within each security type.
Review and monitor portfolio composition for changes in credit, risk-return profile and comparisons with benchmarks.
The bottom-up fixed income investment strategy is implemented as follows:
Search for eligible securities with a yield to maturity advantage versus a U.S. Government security with a similar duration.
Evaluate credit quality of the securities.
Perform an analysis of the expected price volatility of the securities to changes in interest rates by examining actual price volatility between U.S. Government and non-U.S. Government securities.
Each sub-advisor’s investment processes incorporate the sub-advisor’s environmental, social and/or governance (“ESG”) analysis as a consideration in the assessment of potential equity investments, and of potential debt security investments to which such analysis is deemed applicable by the sub-advisor. However, as ESG information is just one investment consideration, ESG considerations are not solely determinative in any investment decision made by a sub-advisor. In addition, the sub-advisors do not use ESG considerations to limit, restrict or otherwise exclude companies or sectors from the Fund’s investment universe. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks.
The Fund may invest cash balances in a government money market fund advised by the Manager, with respect to which the Manager receives a management fee.  The Fund may also purchase and sell equity index futures contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs. The Fund may seek to earn additional income by lending its securities to certain qualified broker-dealers and institutions.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Fund Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to two broad-based securities market indices, as well as additional market indices and a composite index of these additional indices with characteristics that are similar to those of the Fund, for the periods indicated.
The chart and the table show the performance of the Fund’s Investor Class shares for all periods. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. In the table below, the performance for C Class shares reflects the performance as though C Class shares were held for the full 10-year period.
You may obtain updated performance information on the Fund’s website at www.americanbeaconfunds.com. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to two broad-based securities market indices, as well as additional market indices and a composite index of these additional indices with characteristics that are similar to those of the Fund, for the periods indicated.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.americanbeaconfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar year total returns for Investor Class Shares. Year Ended 12/31
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarterly Return:
15.36%4th Quarter 2020
01/01/2015 through 12/31/2024
Lowest Quarterly Return:
-19.59%1st Quarter 2020
01/01/2015 through 12/31/2024
Performance Table Heading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2024
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation. After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
(American Beacon Funds) | (American Beacon Balanced Fund) | Risk Lose Money [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund.
(American Beacon Funds) | (American Beacon Balanced Fund) | Risk Not Insured Depository Institution [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
(American Beacon Funds) | (American Beacon Balanced Fund) | Allocation Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Allocation Risk
The allocations among strategies, asset classes and market exposures may be less than optimal and may adversely affect the Fund’s performance. There can be no assurance, particularly during periods of market disruption and stress, that judgments about allocations will be correct. The Fund’s allocations may be invested in strategies, asset classes and market exposures during a period when such strategies, asset classes and market exposures underperform.
(American Beacon Funds) | (American Beacon Balanced Fund) | Asset-Backed Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Asset-Backed Securities Risk
Investments in asset-backed securities are influenced by factors affecting the assets underlying the securities, including the broader market sector and individual markets, such as the auto markets. These securities may be more sensitive to changes in interest rates than other types of debt securities. Investments in asset-backed securities also are subject to risks of fixed-income securities, which include, but are not limited to, credit risk, interest rate risk, prepayment and extension risk, callable securities risk, valuation risk, liquidity risk, and restricted securities risk. A decline in the credit quality of the issuers of asset-backed securities or instability in the markets for such securities may affect the value and liquidity of such securities, which could result in losses to the Fund. These securities are also subject to the risk of default on the underlying assets, particularly during periods of market downturn, and an unexpectedly high rate of defaults on the underlying assets will adversely affect the security’s value.
(American Beacon Funds) | (American Beacon Balanced Fund) | Asset Selection Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Asset Selection Risk
Assets selected for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to other funds with similar investment objectives.
(American Beacon Funds) | (American Beacon Balanced Fund) | Convertible Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Convertible Securities Risk
The value of a convertible security, including a convertible preferred security, typically increases or decreases with the price of the underlying common stock. In general, a convertible security is subject to the market risks of stocks when the underlying stock’s price is high relative to the conversion price and is subject to the market risks of debt securities when the underlying stock’s price is low relative to the conversion price. The general market risks of debt securities that are common to convertible securities include, but are not limited to, interest rate risk and credit risk. Many convertible securities have credit ratings that are below investment grade and are subject to the same risks as an investment in below investment grade debt securities (commonly known as “junk bonds”). Lower-rated debt securities may fluctuate more widely in price and yield than investment grade debt securities and may fall in price during times when the economy is weak or is expected to become weak. Convertible securities are subject to the risk that the credit standing of the issuer may have an effect on the convertible security‘s investment value. In addition, to the extent the Fund invests in convertible securities issued by mid-capitalization companies, it will be subject to the market risks of investing in such companies. The stocks of mid-capitalization companies may fluctuate more widely in price than the market as a whole and there may also be less trading in mid-capitalization stocks. Convertible securities are sensitive to movement in interest rates.
(American Beacon Funds) | (American Beacon Balanced Fund) | Counterparty Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Counterparty Risk
The Fund is subject to the risk that a party or participant to a transaction, such as a broker or a derivative counterparty, will be unwilling or unable to satisfy its obligation to make timely principal, interest or settlement payments or to otherwise honor its obligations to the Fund.
(American Beacon Funds) | (American Beacon Balanced Fund) | Credit Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Credit Risk
The Fund is subject to the risk that the issuer, guarantor or insurer of an obligation, or the counterparty to a transaction, may fail, or become less able or unwilling, to make timely payment of interest or principal or otherwise honor its obligations or default completely. Changes in the actual or perceived creditworthiness of an issuer, or a downgrade or default affecting any of the Fund’s securities, could affect the Fund’s performance. Generally, the longer the maturity and the lower the credit quality of a security, the more sensitive it is to credit risk.
(American Beacon Funds) | (American Beacon Balanced Fund) | Cybersecurity and Operational Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers and third-party fund distribution platforms, including the ability of shareholders to transact in the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. It is not possible for the Fund or its service providers to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. The Fund cannot control the cybersecurity and operational plans and systems of its service providers, its counterparties or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.
(American Beacon Funds) | (American Beacon Balanced Fund) | Debentures Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Debentures Risk
Debentures are unsecured debt securities. The holder of a debenture is protected only by the general creditworthiness of the issuer. The Fund may invest in both corporate and government debentures.  
(American Beacon Funds) | (American Beacon Balanced Fund) | Dividend Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Dividend Risk
An issuer of stock held by the Fund may choose not to declare a dividend or the dividend rate might not remain at current levels or increase over time. Dividend paying stocks might not experience the same level of earnings growth or capital appreciation as non-dividend paying stocks. Securities that pay dividends may be sensitive to changes in interest rates and, as interest rates rise or fall, the prices of such securities may fall.
(American Beacon Funds) | (American Beacon Balanced Fund) | Environmental, Social, and/or Governance Investing Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Environmental, Social, and/or Governance Investing Risk
The use of environmental, social, and/or governance (“ESG”) considerations by  a sub-advisor may cause the Fund to make different investments than funds that have a similar investment style but do not incorporate such considerations in their strategy. As with the use of any investment considerations involved in investment decisions, there is no guarantee that the use of any ESG investment considerations will result in the selection of issuers that will outperform other issuers or help reduce risk in the Fund. The Fund may underperform funds that do not incorporate these considerations or incorporate different ESG considerations. Although a  sub-advisor has established its own process to oversee ESG integration in accordance with the Fund’s strategies, successful integration of ESG factors will depend on a  sub-advisor’s skill in researching, identifying, and applying these factors, as well as on the availability of relevant data. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks. The regulatory landscape with respect to ESG investing in the United States is evolving and any future rules or regulations may require the Fund to change its investment process with respect to the integration of ESG factors.
(American Beacon Funds) | (American Beacon Balanced Fund) | Equity Investments Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Equity Investments Risk
Equity securities represent ownership interests in companies and are subject to investment risk, issuer risk and market risk. In general, the values of stocks and other equity securities fluctuate, and sometimes widely fluctuate, in response to changes in a company’s financial condition as well as general market, economic and political conditions and other factors. The Fund may experience a significant or complete loss on its investment in an equity security. In addition, stock prices may be particularly sensitive to rising interest rates, which increase borrowing costs and the costs of capital.  The Fund may invest in the following equity securities, which may expose the Fund to the following additional risks:
Common Stock Risk. The value of a company’s common stock may fall as a result of factors affecting the company, companies in the same industry or sector, or the financial markets overall. Common stock generally is subordinate to preferred stock upon the liquidation or bankruptcy of the issuing company.
Depositary Receipts Risk. Depositary receipts are subject to certain of the risks associated with investing directly in foreign securities, including, but not limited to, currency exchange rate fluctuations, political and financial instability in the home country of a particular depositary receipt, less liquidity, more volatility, less government regulation and supervision and delays in transaction settlement.
Master Limited Partnerships (“MLPs”) Risk. Investing in MLPs involves certain risks related to investing in the underlying assets of the MLPs and risks associated with pooled investment vehicles. Investments held by MLPs may be relatively illiquid, limiting the MLPs’ ability to change their portfolios promptly in response to changes in economic or other conditions. MLPs may have limited financial resources, their securities may trade infrequently and in limited volume, they may be difficult to value, and they may be subject to more abrupt or erratic price movements than securities of larger or more broadly based companies. Holders of units in MLPs have more limited rights to vote on matters affecting the partnership and may be required to sell their common units at an undesirable time or price. The Fund’s investments in MLPs will be limited to no more than 25% of its assets in order for the Fund to meet the requirements necessary to qualify as a “regulated investment company” under the Internal Revenue Code of 1986, as amended (“Internal Revenue Code”).
Real Estate Investment Trusts (“REITs”) Risk. Investments in REITs are subject to the risks associated with investing in the real estate industry, including, among other risks: adverse developments affecting the real estate industry; declines in real property values; changes in interest rates; defaults by mortgagors or other borrowers and tenants; lack of availability of mortgage funds or financing; extended vacancies of properties, especially during economic downturns; casualty or condemnation losses; regulatory limitations on rents and operating expenses; and other governmental actions, such as changes to tax laws, zoning regulations or environmental regulations. REITs also are dependent upon the skills of their managers and are subject to heavy cash flow dependency or self-liquidation. Regardless of where a REIT is organized or traded, its performance may be affected significantly by events in the region where its properties are located. REITs may not be diversified geographically or by property or tenant type. Domestic REITs could be adversely affected by failure to qualify for tax-free “pass-through” of distributed net income and net realized gains under the Internal Revenue Code of 1986, as amended (“Internal Revenue Code”), or to maintain their exemption from registration under the Investment Company Act of 1940, as amended (“Investment Company Act”). REITs typically incur fees that are separate from those incurred by the Fund. Accordingly, the Fund’s investment in REITs will result in the layering of expenses such that shareholders will indirectly bear a proportionate share of the REITs’ operating expenses, in addition to paying Fund expenses. The value of REIT common stock may decline when interest rates rise. REITs tend to be small- to mid-capitalization securities and, as such, are subject to the risks of investing in small- to mid-capitalization securities.  
U.S. Dollar-Denominated Foreign Stocks Traded on U.S. Exchanges Risk. Foreign (non-U.S.) companies that list their stocks on U.S. exchanges may be exempt from certain accounting and corporate governance standards that apply to U.S. companies that list on the same exchange. Performance of these stocks can be impacted by political and financial instability in the home country of a particular foreign company, and delisting of these stocks could impact the  Fund‘s ability to transact in such securities and could significantly impact their liquidity and market price.
(American Beacon Funds) | (American Beacon Balanced Fund) | Foreign Exposure Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Foreign Exposure Risk
Exposure to  non-U.S. issuers carries potential risks not associated with exposure to U.S. issuers. Such risks may include, but are not limited to: (1) political and financial instability, (2) less liquidity, (3) greater volatility, and (4) different government regulation The Fund’s exposure to a foreign issuer may subject the Fund to regulatory, political, currency, security, economic and other risks associated with that country, including tariffs, trade disputes and sanctions. Global economic and financial markets have become increasingly interconnected and conditions (including recent volatility, terrorism, war and political instability) and events (including natural disasters) in one country, region or financial market may adversely impact issuers in a different country, region or financial market.
(American Beacon Funds) | (American Beacon Balanced Fund) | Futures Contracts Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Futures Contracts Risk
Futures contracts are derivative instruments pursuant to a contract where the parties agree to a fixed price for an agreed amount of securities or other underlying assets at an agreed date. The use of such derivative instruments may expose the Fund to additional risks, such as credit risk, liquidity risk, and counterparty risk, that it would not be subject to if it invested directly in the securities underlying those derivatives. There can be no assurance that any strategy used will succeed. There may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes. There also can be no assurance that, at all times, a liquid market will exist for offsetting a futures contract that the Fund has previously bought or sold, and this may result in the inability to close a futures contract when desired. Futures contracts may experience potentially dramatic price changes, which will increase the volatility of the Fund and may involve a small investment of cash (the amount of initial and variation margin) relative to the magnitude of the risk assumed (the potential increase or decrease in the price of the futures contract).   Use of derivatives is a highly specialized activity that can involve investment techniques and risks different from, and in some respects greater than, those associated with investing in more traditional investments. Derivatives can be highly complex and highly volatile and may perform in unanticipated ways. The Fund may invest in the following types of futures contracts:
Index Futures Contracts Risk. Futures contracts on indices expose the Fund to volatility in an underlying index.   
(American Beacon Funds) | (American Beacon Balanced Fund) | Interest Rate Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Interest Rate Risk
Generally, the value of investments with interest rate risk, such as fixed-income securities, will move in the opposite direction as movements in interest rates. Factors including central bank monetary policy, rising inflation rates, and changes in general economic conditions may cause interest rates to rise, which could cause the value of the Fund’s investments to decline. Interest rate increases, including significant or rapid increases, may result in a decline in the value of bonds held by the Fund, make issuers less willing or able to make principal and interest payments on fixed-income investments when due, lead to heightened volatility in the fixed-income markets and adversely affect the liquidity of certain fixed-income investments, any of which may result in substantial losses to the Fund. When interest rates decline, issuers may prepay higher-yielding securities held by the Fund, resulting in the Fund reinvesting in securities with lower yields, which may cause a decline in its income.   Interest rate changes may have a more pronounced effect on the market value of fixed-rate instruments than on floating-rate instruments. The value of floating rate and variable securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates.  The prices of fixed-income securities are also affected by their durations. Fixed-income securities with longer durations generally have greater sensitivity to changes in interest rates than those with shorter durations. Rising interest rates may cause the value of the Fund’s investments with longer durations and terms to maturity to decline, which may adversely affect the value of the Fund. For example, if a bond has a duration of eight years, a 1% increase in interest rates could be expected to result in an 8% decrease in the value of the bond. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by the Fund.
(American Beacon Funds) | (American Beacon Balanced Fund) | Investment Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Investment Risk
An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.
(American Beacon Funds) | (American Beacon Balanced Fund) | Issuer Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Issuer Risk
The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.
(American Beacon Funds) | (American Beacon Balanced Fund) | Large-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Large-Capitalization Companies Risk
The securities of large market capitalization companies may underperform other segments of the market because such companies may be less responsive to competitive challenges and opportunities and, at times, such companies may be out of favor with investors. Many larger-capitalization companies also may be unable to attain the high growth rates of successful smaller companies, especially during periods of economic expansion.
(American Beacon Funds) | (American Beacon Balanced Fund) | Liquidity Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Liquidity Risk
The Fund is susceptible to the risk that certain investments held by the Fund may have limited marketability, be subject to restrictions on sale, be difficult or impossible to purchase or sell at favorable times or prices or become less liquid in response to market developments or adverse credit events that may affect issuers or guarantors of a security. An inability to sell a portfolio position can adversely affect the Fund’s value or prevent the Fund from being able to take advantage of other investment opportunities. Market prices for such instruments may be volatile. During periods of substantial market volatility, an investment or even an entire market segment may become illiquid, sometimes abruptly, which can adversely affect the Fund’s ability to limit losses. The Fund
could lose money if it is unable to dispose of an investment at a time that is most beneficial to the Fund. The Fund may be required to dispose of investments at unfavorable times or prices to satisfy obligations, which may result in losses or may be costly to the Fund.   For example, liquidity risk may be magnified in rising interest rate environments in the event of higher than normal redemption rates.   Unexpected redemptions may force the Fund to sell certain investments at unfavorable prices to meet redemption requests or other cash needs.  Judgment plays a greater role in pricing illiquid investments than in investments with more active markets.
(American Beacon Funds) | (American Beacon Balanced Fund) | Market Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Market Risk
The Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. Equity securities generally have greater price volatility than fixed-income securities, although under certain market conditions fixed-income securities may have comparable or greater price volatility. During a general downturn in the securities markets, multiple assets may decline in value simultaneously. Prices in many financial markets have increased significantly over the last decade, but there have also been periods of adverse market and financial developments and cyclical change during that timeframe, which have resulted in unusually high levels of volatility in domestic and foreign financial markets that has caused losses for investors and may occur again in the future. The value of a security may decline due to adverse issuer-specific conditions, general market conditions unrelated to a particular issuer, such as changes in interest or inflation rates, or factors that affect a particular industry or industries. Changes in the financial condition of a single issuer or market segment also can impact the market as a whole. Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, pandemics, public health crises, natural disasters and related events have led, and in the future may continue to lead, to instability in world economies and markets generally and reduced liquidity in equity, credit and fixed-income markets, which may disrupt economies and markets and adversely affect the value of your investment. Changes in value may be temporary or may last for extended periods.
Policy changes by the U.S. government and/or Federal Reserve and political events within the U.S. and abroad, such as changes in the U.S. presidential administration and Congress, the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat or occurrence of a federal government shutdown and threats or the occurrence of a failure to increase the federal government’s debt limit, which could result in a default on the government’s obligations, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree.
Markets and market participants are increasingly reliant upon both publicly available and proprietary information data systems. Data imprecision, software or other technology malfunctions, programming inaccuracies, unauthorized use or access, and similar circumstances may impair the performance of these systems and may have an adverse impact upon a single issuer, a group of issuers, or the market at large.
The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations.
Recent Market Events Risk. Both U.S. and international markets have experienced significant volatility in recent months and years. As a result of such volatility, investment returns may fluctuate significantly. Moreover, the risks discussed herein associated with an investment in the Fund may be increased.
Although interest rates were unusually low in the  U.S. and abroad for a period of time, in 2022, the U.S. Federal Reserve (the “Federal Reserve”) and certain foreign central banks began to raise interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Additionally, various economic and political factors could cause the Federal Reserve or foreign central banks to change their approach in the future and such actions may result in an economic slowdown in the U.S. and abroad. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility, reduce liquidity across various markets or decrease confidence in the markets. High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. There is no assurance that the U.S. Congress will act to raise the nation’s debt ceiling, a failure to do so could cause market turmoil and substantial investment risks that cannot be fully predicted. Unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy.
Some countries, including the U.S., have adopted more protectionist trade policies. Slowing global economic growth, imposition of tariffs and resulting impacts on global prices and supply chains, the rise in protectionist trade policies, inflationary pressures, changes to some major international trade agreements, risks associated with trade negotiations between countries and regions, including the U.S. and certain foreign nations, political or economic dysfunction within some nations, including the U.S., and dramatic changes in commodity and currency prices could have adverse effects that cannot be foreseen at the present time. In addition, if the U.S. dollar continues to be strong, it may decrease foreign demand for U.S. assets, which could have a negative impact on certain issuers and/or industries.
Tensions, war, or open conflict between nations, such as between Russia and Ukraine, in the Middle East or in eastern Asia could affect the economies of many nations, including the United States. The duration of ongoing hostilities in the Middle East and between Russia and Ukraine, and any sanctions and related events cannot be predicted. Those events present material uncertainty and risk with respect to markets globally and the performance of the Fund and its investments or operations could be negatively impacted.  
Regulators in the  U.S. have adopted a number of changes to regulations involving the markets and issuers, some of which apply to the Fund. The full effect of various newly adopted regulations is not currently known. Certain of these changes could limit the Fund’s ability to pursue its investment strategies or make certain investments, or may make it more costly for the Fund to operate, which may impact performance.  Additionally, it is possible that recently adopted regulations could be further revised or rescinded, which creates material uncertainty on their impact to the Fund.
Economists and others have expressed increasing concern about the potential effects of global climate change on property and security values. Certain issuers, industries and regions may be adversely affected by the impacts of climate change in ways that cannot be foreseen, including on the demand for and the development of goods and services and related production costs, and the impacts of legislation, regulation and international accords related to climate change, as well as any indirect consequences of regulation or business trends driven by climate change.
(American Beacon Funds) | (American Beacon Balanced Fund) | Mid-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Mid-Capitalization Companies Risk
Investing in the securities of mid-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since mid-capitalization companies may have narrower commercial markets and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity, and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.
(American Beacon Funds) | (American Beacon Balanced Fund) | Mortgage-Backed and Mortgage-Related Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Mortgage-Backed and  Mortgage-Related Securities Risk
Investments in mortgage-backed and mortgage-related securities are influenced by the factors affecting the mortgages underlying the securities or the housing market. These securities tend to be more sensitive to changes in interest rates than other types of debt securities. Investments in mortgage-backed and mortgage-related securities also are subject to market risks for fixed-income securities, which include, but are not limited to, credit risk, interest rate risk, prepayment and extension risk, callable securities risk, valuation risk, liquidity risk, and restricted securities risk. A decline in the credit quality of the issuers of mortgage-backed and mortgage-related securities or instability in the markets for such securities may affect the value and liquidity of such securities, which could result in losses to the Fund. These securities are also subject to the risk of default on the underlying mortgages, particularly during periods of market downturn, and an unexpectedly high rate of defaults on the underlying assets will adversely affect the security’s value.
Collateralized Mortgage Obligation (“CMOs”) Risk. CMOs may offer a higher yield than U.S. government securities, but they may also be subject to greater price fluctuation and credit risk. In addition, CMOs typically will be issued in a variety of classes or series, which have different maturities and are retired in sequence. In the event of a default by an issuer of a CMO, there is no assurance that the collateral securing such CMO will be sufficient to pay principal and interest. It is possible that there will be limited opportunities for trading CMOs in the OTC market, the depth and liquidity of which will vary from time to time.
Commercial Mortgage-Backed Securities (“CMBS”) Risk. CMBS reflect the risks of investing in the real estate securing the underlying mortgage loans. These risks reflect the effects of local and other economic conditions on real estate markets, the ability of borrowers to make loan payments, and the ability of a property to attract and retain tenants. CMBS may not be backed by the full faith and credit of the U.S. Government and are subject to risk of default on the underlying mortgages, particularly during periods of economic downturn. CMBS are subject to a greater degree of prepayment and extension risk than many other forms of fixed-income securities, and CMBS may be less liquid and exhibit greater price volatility than other types of mortgage- or asset-backed securities. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of CMBS.
(American Beacon Funds) | (American Beacon Balanced Fund) | Multiple Sub-Advisor Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Multiple Sub-Advisor Risk
The Manager may allocate the Fund’s assets among multiple sub-advisors, each of which is responsible for investing its allocated portion of the Fund’s assets. To a significant extent, the Fund’s performance will depend on the success of the Manager in selecting and overseeing the sub-advisors and allocating the Fund’s assets to sub-advisors. The sub-advisors’ investment styles may not work together as planned, which could adversely affect the performance of the Fund. In addition, because each sub-advisor makes its trading decisions independently, the sub-advisors may purchase or sell the same security at the same time without aggregating their transactions. This may cause unnecessary brokerage and other expenses.
(American Beacon Funds) | (American Beacon Balanced Fund) | Other Investment Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Other Investment Companies Risk
To the extent that the Fund invests in shares of other registered investment companies, the Fund will indirectly bear the fees and expenses charged by those investment companies in addition to the Fund’s direct fees and expenses. To the extent the Fund invests in other investment companies that invest in equity securities, fixed-income securities and/or foreign securities, or that track an index, the Fund is subject to the risks associated with the underlying investments held by the investment company or the index fluctuations to which the investment company is subject. The Fund will be subject to the risks associated with investments in those companies, including but not limited to the following:
Government Money Market Funds Risk. Investments in government money market funds are subject to interest rate risk, credit risk, and market risk.
(American Beacon Funds) | (American Beacon Balanced Fund) | Preferred Stock Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Preferred Stock Risk
Preferred stocks are sensitive to movements in interest rates. Preferred stocks may be less liquid than common stocks and, unlike common stocks, participation in the growth of an issuer may be limited. Distributions on preferred stocks generally are payable at the discretion of an issuer and after required payments to bond holders. In certain situations, an issuer may call or redeem its preferred stock or convert it to common stock. The market prices of preferred stocks are generally more sensitive to actual or perceived changes in the issuer’s financial condition or prospects than are the prices of debt securities.
(American Beacon Funds) | (American Beacon Balanced Fund) | Prepayment and Extension Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Prepayment and Extension Risk
Prepayment and extension risk is the risk that a bond or other fixed-income security or investment might, in the case of prepayment risk, be called or otherwise converted, prepaid or redeemed before maturity and, in the case of extension risk, that the investment might not be prepaid as expected. Due to a decline in interest rates or excess cash flow into the issuer, a debt security may be called or otherwise converted, prepaid or redeemed before maturity. If this occurs, no additional interest will be paid on the investment. The Fund may have to reinvest the proceeds in another investment at a lower rate, may not benefit from an increase in value that may result from declining interest rates, and may lose any premium it paid to acquire the security, any of which could result in a reduced yield to the Fund. The rate of prepayments tends to increase as interest rates fall, which could cause the average maturity of the portfolio to shorten. Conversely, extension risk is the risk that a decrease in prepayments may, as a result of higher interest rates or other factors, result in the extension of a security’s effective maturity, increase the risk of default or delayed payment, heighten interest rate risk and increase the potential for a decline in an investment’s price. In addition, as a consequence of a decrease in prepayments, the amount of principal available to the Fund for investment would be reduced. Extensions of obligations could cause the Fund to exhibit additional volatility and hold securities paying lower-than-market rates of interest. Either case could hurt the Fund’s performance.
(American Beacon Funds) | (American Beacon Balanced Fund) | Redemption Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Redemption Risk
The Fund may experience periods of high levels of redemptions that could cause the Fund to sell assets at inopportune times or at a loss or depressed value. Heavy redemptions could hurt the Fund’s performance. The sale of assets to meet redemption requests may create net capital gains, which could cause the Fund to have to distribute substantial capital gains. Redemption risk is greater to the extent that one or more investors or intermediaries control a large percentage of investments in the Fund. In addition, redemption risk is heightened during periods of declining or illiquid markets. A rise in interest rates or other market developments may cause investors to move out of fixed-income securities on a large scale. During periods of heavy redemptions, the Fund may borrow funds through the interfund credit facility or from a bank line of credit, which may increase costs.
(American Beacon Funds) | (American Beacon Balanced Fund) | Secured, Partially Secured and Unsecured Obligation Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Secured, Partially Secured and Unsecured Obligation Risk
Debt obligations may be secured, partially secured or unsecured. Interests in secured and partially-secured obligations have the benefit of collateral and, typically, of restrictive covenants limiting the ability of the borrower to further encumber its assets. However, there is no assurance that the liquidation of collateral from a secured or partially-secured obligation would satisfy the borrower’s obligation, or that the collateral can be liquidated. Furthermore, there is a risk that the value of any collateral securing an obligation in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the obligation. In the event the borrower defaults, the Fund’s access to the collateral may be limited or delayed by bankruptcy or other insolvency laws. Unsecured debt, including senior unsecured and subordinated debt, will not be secured by any collateral and will be effectively subordinated to a borrower’s secured indebtedness (to the extent of the collateral securing such indebtedness). With respect to unsecured obligations, the Fund lacks any collateral on which to foreclose to satisfy its claim in whole or in part. Such instruments generally have greater price volatility than that of fully secured holdings and may be less liquid.
(American Beacon Funds) | (American Beacon Balanced Fund) | Securities Lending Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Lending Risk
To the extent the Fund lends its securities, it may be subject to the following risks: (i) the securities in which the Fund reinvests cash collateral may decrease in value, causing the Fund to incur a loss, or may not perform sufficiently to cover the Fund’s payment to the borrower of a pre-negotiated fee or “rebate” for the use of that cash collateral in connection with the loan; (ii) non-cash collateral may decline in value, resulting in the Fund becoming under-secured; (iii) delays may occur in the recovery of loaned securities from borrowers, which could result in the Fund being unable to vote proxies or settle transactions or cause the Fund to incur increased costs; and (iv) if the borrower becomes subject to insolvency or similar proceedings, the Fund could incur delays in its ability to enforce its rights in its collateral.
(American Beacon Funds) | (American Beacon Balanced Fund) | Securities Selection Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Selection Risk
Securities selected for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to its performance index(es), or other funds with similar investment objectives or strategies.
(American Beacon Funds) | (American Beacon Balanced Fund) | Segregated Assets Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Segregated Assets Risk
In connection with certain transactions that may give rise to future payment obligations, the Fund may be required to maintain a segregated amount of, or otherwise earmark, cash or liquid securities to cover the obligation. Segregated assets generally cannot be sold while the position they are covering is outstanding, unless they are replaced with other assets of equal value. The need to segregate cash or other liquid securities could limit the Fund’s ability to pursue other opportunities as they arise.
(American Beacon Funds) | (American Beacon Balanced Fund) | U.S. Government Securities and Government-Sponsored Enterprises Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
U.S. Government Securities and Government-Sponsored Enterprises Risk
A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed only as to the timely payment of coupons and the face value at maturity, not its current market price. The market prices for such securities are not guaranteed and will fluctuate. Certain securities held by the Fund that are issued by government-sponsored enterprises, such as the Federal National Mortgage Association (‘‘Fannie Mae’’), Federal Home Loan Mortgage Corporation (‘‘Freddie Mac’’), Federal Home Loan Bank (‘‘FHLB’’), and Federal Farm Credit Bank (“FFCB”), are not guaranteed by the U.S. Treasury and are not backed by the full faith and credit of the U.S. government, and no assurance can be given that the U.S. government will provide financial support if these organizations do not have the funds to meet future payment obligations. U.S. government securities and securities of government-sponsored enterprises are also subject to credit risk, interest rate risk and market risk. The rising U.S. national debt may lead to adverse impacts on the value of U.S. government securities due to potentially higher costs for the U.S. government to obtain new financing. It is possible that the U.S. government and government-sponsored enterprises will not have the funds to meet their payment obligations in the future.
(American Beacon Funds) | (American Beacon Balanced Fund) | Value Stocks Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Value Stocks Risk
Value stocks are subject to the risk that their intrinsic or full value may never be realized by the market, that a stock judged to be undervalued may be appropriately priced, or that their prices may decline. Although value stocks tend to be inexpensive relative to their earnings, they can continue to be inexpensive for long periods of time. The Fund’s investments in value stocks seek to limit potential downside price risk over time; however, value stock prices still may decline substantially. In addition, the Fund may produce more modest gains as a trade-off for this potentially lower risk. The Fund’s investment in value stocks could cause the Fund to underperform funds that use a growth or non-value approach to investing or have a broader investment style.
(American Beacon Funds) | (American Beacon Balanced Fund) | Variable and Floating Rate Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Variable and Floating Rate Securities Risk
The coupons on variable and floating-rate securities are not fixed and may fluctuate based upon changes in market rates. A variable rate security has a coupon that is adjusted at pre-designated periods in response to changes in the market rate of interest on which the coupon is based. The coupon on a floating rate security is generally based on an interest rate, such as a money-market index, Secured Overnight Financing Rate (“SOFR”), or a Treasury bill rate. Variable and floating rate securities are subject to interest rate risk and credit risk. As short-term interest rates decline, the coupons on variable and floating-rate securities typically decrease. Alternatively, during periods of rising short-term interest rates, the coupons on variable and floating-rate securities typically increase. Changes in the coupons of variable and floating-rate securities may lag behind changes in market rates or may have limits on the maximum increases in the coupon rates. The value of variable and floating-rate securities may decline if their coupons do not rise as much, or as quickly, as interest rates in general. Conversely, variable and floating rate securities will not generally increase in value if interest rates decline. Certain types of variable and floating rate instruments may be subject to greater liquidity risk than other debt securities.
(American Beacon Funds) | (American Beacon Balanced Fund) | Bloomberg US Aggregate Bond Index (Reflects no deduction for fees, expenses or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 1.25%
5 Years rr_AverageAnnualReturnYear05 (0.33%)
10 Years rr_AverageAnnualReturnYear10 1.35%
(American Beacon Funds) | (American Beacon Balanced Fund) | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 25.02%
5 Years rr_AverageAnnualReturnYear05 14.53%
10 Years rr_AverageAnnualReturnYear10 13.10%
(American Beacon Funds) | (American Beacon Balanced Fund) | Russell 1000® Value Index (Reflects no deduction for fees, expenses or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 14.37%
5 Years rr_AverageAnnualReturnYear05 8.68%
10 Years rr_AverageAnnualReturnYear10 8.49%
(American Beacon Funds) | (American Beacon Balanced Fund) | Balanced Composite Index (40% Bloomberg US Aggregate Bond Index/60% Russell 1000® Value Index) (Reflects no deduction for fees, expenses or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 9.08%
5 Years rr_AverageAnnualReturnYear05 5.36%
10 Years rr_AverageAnnualReturnYear10 5.87%
(American Beacon Funds) | (American Beacon Balanced Fund) | A Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 0.50% [1]
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.52%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.40%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.18% [2]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 688
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 927
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,185
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,921
1 Year rr_AverageAnnualReturnYear01 3.72%
5 Years rr_AverageAnnualReturnYear05 5.72%
10 Years rr_AverageAnnualReturnYear10 5.92%
Inception Date rr_AverageAnnualReturnInceptionDate May 17, 2010
(American Beacon Funds) | (American Beacon Balanced Fund) | C Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.52%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.42%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.95% [2]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 298
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 611
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,050
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,271
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 198
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 611
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,050
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,271
1 Year rr_AverageAnnualReturnYear01 8.20%
5 Years rr_AverageAnnualReturnYear05 6.19%
10 Years rr_AverageAnnualReturnYear10 5.75%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 01, 2010
(American Beacon Funds) | (American Beacon Balanced Fund) | Y Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.52%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.41%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.94% [2]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 96
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 298
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 518
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,150
1 Year rr_AverageAnnualReturnYear01 10.33%
5 Years rr_AverageAnnualReturnYear05 7.25%
10 Years rr_AverageAnnualReturnYear10 6.84%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 01, 2010
(American Beacon Funds) | (American Beacon Balanced Fund) | Advisor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.52%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.58%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.36% [2]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 138
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 430
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 743
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,631
1 Year rr_AverageAnnualReturnYear01 9.87%
5 Years rr_AverageAnnualReturnYear05 6.83%
10 Years rr_AverageAnnualReturnYear10 6.39%
Inception Date rr_AverageAnnualReturnInceptionDate May 31, 2005
(American Beacon Funds) | (American Beacon Balanced Fund) | R5 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.52%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.32%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85% [2]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 86
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 270
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 469
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,045
1 Year rr_AverageAnnualReturnYear01 10.46%
5 Years rr_AverageAnnualReturnYear05 7.33%
10 Years rr_AverageAnnualReturnYear10 6.90%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 17, 1987
(American Beacon Funds) | (American Beacon Balanced Fund) | Investor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.52%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.65%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.18% [2]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 120
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 374
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 647
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,428
Annual Return 2015 rr_AnnualReturn2015 (4.41%)
Annual Return 2016 rr_AnnualReturn2016 12.01%
Annual Return 2017 rr_AnnualReturn2017 12.21%
Annual Return 2018 rr_AnnualReturn2018 (8.19%)
Annual Return 2019 rr_AnnualReturn2019 22.09%
Annual Return 2020 rr_AnnualReturn2020 6.12%
Annual Return 2021 rr_AnnualReturn2021 16.33%
Annual Return 2022 rr_AnnualReturn2022 (7.84%)
Annual Return 2023 rr_AnnualReturn2023 12.06%
Annual Return 2024 rr_AnnualReturn2024 10.11%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarterly Return:15.36%4th Quarter 202001/01/2015 through 12/31/2024
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 15.36%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarterly Return:-19.59%1st Quarter 202001/01/2015 through 12/31/2024
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (19.59%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
1 Year rr_AverageAnnualReturnYear01 10.11%
5 Years rr_AverageAnnualReturnYear05 7.02%
10 Years rr_AverageAnnualReturnYear10 6.58%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1994
(American Beacon Funds) | (American Beacon Balanced Fund) | Investor Class | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 6.97%
5 Years rr_AverageAnnualReturnYear05 4.43%
10 Years rr_AverageAnnualReturnYear10 4.23%
(American Beacon Funds) | (American Beacon Balanced Fund) | Investor Class | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 7.63%
5 Years rr_AverageAnnualReturnYear05 4.99%
10 Years rr_AverageAnnualReturnYear10 4.66%
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund)  
Prospectus: rr_ProspectusTable  
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund’s investment objective is high current income consistent with preservation of capital.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. More information  is available from your financial professional and in “Choosing Your Share Class” on page 67 of the Prospectus.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2026
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same, except that the Example reflects the fee waiver/expense reimbursement arrangement for each share class through February 28, 2026. Although your actual costs may be higher or lower, based on these assumptions, whether you redeem or hold your shares, your costs would be:
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 34.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investment grade bonds. For purposes of the 80% policy, investment grade bonds include other investment grade debt securities. The Fund considers investment grade debt securities to be debt securities that are rated A-/A3 or better by S&P Global Ratings (“S&P”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch Ratings Inc. (“Fitch”).
The types of investment grade debt securities that the Fund invests in primarily include obligations of the U.S. Government (such as U.S. Treasuries), its agencies and  instrumentalities, including U.S. Government-sponsored enterprises (some of which are not backed by the full faith and credit of the U.S. Government), corporate bonds, debentures, and mortgage-backed and mortgage-related securities, including mortgage pass-through securities. These types of obligations may have fixed-rate or floating-rate coupons (or variable rate coupons), which pay interest at variable rates based on a lending rate, such as the Secured Overnight Financing Rate (“SOFR”), and are commonly referred to as fixed income securities or bonds. If an investment held by the Fund is downgraded below investment grade, the sub-advisor may sell the security or request the Manager’s permission to continue to hold the security.
In selecting investment grade debt securities within the corporate sector, the sub-advisor first focuses on the largest U.S. issuers and companies rated A-/A3 or better by at least two rating agencies. The sub-advisor then utilizes screens to identify issuers that carry high levels of unquantifiable risk that could have a financial impact on the issuers, which includes risks associated with environmental, social, and/or governance (“ESG”) considerations. This includes, but is not limited to, risks associated with foreign companies, Yankee bonds, alcohol, tobacco, gambling, and defense contractors. Issuers identified as having a higher risk profile during this stage are either excluded from further consideration or subject to further evaluation to determine their inclusion in the investable universe. The sub-advisor then utilizes research and/or rankings provided by one or more third parties to analyze and scale the remaining issuers based on the sustainability of their operations and their consideration of ESG principles as an integrated part of the sub-advisor’s evaluation and investment process. These investment considerations are not solely determinative in any investment decision. Thereafter, if the sub-advisor deems securities to be comparable from an investment perspective, the sub-advisor generally expects to select for the Fund’s portfolio the securities with the highest ranking consistent with the sub-advisor’s proprietary scale methodology.
Under normal circumstances, the Fund seeks to maintain a weighted-average duration that is 25% above or below the then-current duration of the Fund’s benchmark, the Bloomberg US Aggregate Bond Index (“Benchmark”). As of December 31, 2024, the Benchmark’s duration was 6.1 years, which means that the Fund’s duration would have been expected to range from approximately 4.6 years to approximately 7.6 years at that time. The Benchmark’s duration is expected to change over time and could be higher or lower at a future date, and the Fund’s duration may change accordingly. Duration is an indicator of a bond’s price sensitivity to a change in interest rates. For example, a duration of eight years means that a security’s price would be expected to decrease by approximately 8% with a 1% increase in interest rates. The Fund may invest in securities of any maturity, but typically invests in securities with maximum maturities of up to 30 years.
The sub-advisor follows a fixed income investment strategy that focuses on high current income, given its outlook for interest rates, and the preservation of capital. In selecting securities for the Fund, the sub-advisor employs a top-down approach, which includes a broad fundamental analysis of the current fixed income markets, including duration, the yield curve, and the performance of market sectors. Through this analysis, the sub-advisor creates defined parameters for the selection of investments for the Fund’s portfolio and implements a proprietary investment process comprised of qualitative and quantitative components.
The Fund may have a focused portfolio of fewer companies than other diversified funds. The Fund may invest cash balances in a government money market fund advised by the Manager, with respect to which the Manager receives a management fee.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Fund Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index for the periods indicated.
The chart and the table show the performance of the Fund’s Investor Class shares for all periods. In the table below, for the period prior to February 28, 2019, the performance of the R6 Class shares reflects the returns of the R5 Class shares of the Fund. The R6 Class shares would have had similar annual returns to the R5 Class shares of the Fund because the shares of each class represent investments in the same portfolio securities. However, as reflected in the table in the “Fees and Expenses of the Fund” section of this Fund Summary, the expenses of the R5 Class shares differ from those of the R6 Class shares, which would affect performance. To the extent that the R5 Class shares may have had lower expenses than the R6 Class shares prior to February 28, 2019, the performance of the R5 Class shares would likely have been higher than the performance the R6 Class shares would have realized during the same period. The performance of the R6 Class shares shown in the table has not been adjusted for differences in operating expenses between the R6 Class shares and R5 Class shares.
You may obtain updated performance information on the Fund’s website at www.americanbeaconfunds.com. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index for the periods indicated.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.americanbeaconfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar year total returns for Investor Class Shares. Year Ended 12/31
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarterly Return:
8.18%4th Quarter 2023
01/01/2017 through 12/31/2024
Lowest Quarterly Return:
-5.80%3rd Quarter 2022
01/01/2017 through 12/31/2024
Performance Table Heading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2024
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation. After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Risk Lose Money [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Risk Not Insured Depository Institution [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Counterparty Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Counterparty Risk
The Fund is subject to the risk that a party or participant to a transaction, such as a broker, will be unwilling or unable to satisfy its obligation to make timely principal, interest or settlement payments or to otherwise honor its obligations to the Fund.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Credit Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Credit Risk
The Fund is subject to the risk that the issuer, guarantor or insurer of an obligation, or the counterparty to a transaction, may fail, or become less able or unwilling, to make timely payment of interest or principal or otherwise honor its obligations or default completely. Changes in the actual or perceived creditworthiness of an issuer, or a downgrade or default affecting any of the Fund’s securities, could affect the Fund’s performance. Generally, the longer the maturity and the lower the credit quality of a security, the more sensitive it is to credit risk.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Cybersecurity and Operational Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers and third-party fund distribution platforms, including the ability of shareholders to transact in the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. It is not possible for the Fund or its service providers to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. The Fund cannot control the cybersecurity and operational plans and systems of its service providers, its counterparties or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Debentures Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Debentures Risk
Debentures are unsecured debt securities. The holder of a debenture is protected only by the general creditworthiness of the issuer. The Fund may invest in both corporate and government debentures.  
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Environmental, Social, and/or Governance Investing Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Environmental, Social, and/or Governance Investing Risk
The use of environmental, social, and/or governance (“ESG”) considerations by  the sub-advisor may cause the Fund to make different investments than funds that have a similar investment style but do not incorporate such considerations in their strategy. As with the use of any investment considerations involved in investment decisions, there is no guarantee that the use of any ESG investment considerations will result in the selection of issuers that will outperform other issuers or help reduce risk in the Fund. The Fund may choose not to, or may not be able to, take advantage of certain investment opportunities due to these considerations, which may adversely affect investment performance. The Fund may underperform funds that do not incorporate these considerations or incorporate different ESG considerations. Although the  sub-advisor has established its own process to oversee ESG integration in accordance with the Fund’s strategies, successful integration of ESG factors will depend on the  sub-advisor’s skill in researching, identifying, and applying these factors, as well as on the availability of relevant data. The sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis
and considering ESG risks. The regulatory landscape with respect to ESG investing in the United States is evolving and any future rules or regulations may require the Fund to change its investment process with respect to the integration of ESG factors.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Interest Rate Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Interest Rate Risk
Generally, the value of investments with interest rate risk, such as fixed-income securities, will move in the opposite direction as movements in interest rates. Factors including central bank monetary policy, rising inflation rates, and changes in general economic conditions may cause interest rates to rise, which could cause the value of the Fund’s investments to decline. Interest rate increases, including significant or rapid increases, may result in a decline in the value of bonds held by the Fund, make issuers less willing or able to make principal and interest payments on fixed-income investments when due, lead to heightened volatility in the fixed-income markets and adversely affect the liquidity of certain fixed-income investments, any of which may result in substantial losses to the Fund. When interest rates decline, issuers may prepay higher-yielding securities held by the Fund, resulting in the Fund reinvesting in securities with lower yields, which may cause a decline in its income.    The prices of fixed-income securities are also affected by their durations. Fixed-income securities with longer durations generally have greater sensitivity to changes in interest rates than those with shorter durations. Rising interest rates may cause the value of the Fund’s investments with longer durations and terms to maturity to decline, which may adversely affect the value of the Fund. For example, if a bond has a duration of eight years, a 1% increase in interest rates could be expected to result in an 8% decrease in the value of the bond. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by the Fund.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Investment Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Investment Risk
An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Issuer Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Issuer Risk
The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Liquidity Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Liquidity Risk
The Fund is susceptible to the risk that certain investments held by the Fund may have limited marketability, be subject to restrictions on sale, be difficult or impossible to purchase or sell at favorable times or prices or become less liquid in response to market developments or adverse credit events that may affect issuers or guarantors of a security. An inability to sell a portfolio position can adversely affect the Fund’s value or prevent the Fund from being able to take advantage of other investment opportunities. Market prices for such instruments may be volatile. During periods of substantial market volatility, an investment or even an entire market segment may become illiquid, sometimes abruptly, which can adversely affect the Fund’s ability to limit losses. The Fund could lose money if it is unable to dispose of an investment at a time that is most beneficial to the Fund. The Fund may be required to dispose of investments at unfavorable times or prices to satisfy obligations, which may result in losses or may be costly to the Fund.   For example, liquidity risk may be magnified in rising interest rate environments in the event of higher than normal redemption rates.   Unexpected redemptions may force the Fund to sell certain investments at unfavorable prices to meet redemption requests or other cash needs.  Judgment plays a greater role in pricing illiquid investments than in investments with more active markets.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Market Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Market Risk
The Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. Equity securities generally have greater price volatility than fixed-income securities, although under certain market conditions fixed-income securities may have comparable or greater price volatility. During a general downturn in the securities markets, multiple assets may decline in value simultaneously. Prices in many financial markets have increased significantly over the last decade, but there have also been periods of adverse market and financial developments and cyclical change during that timeframe, which have resulted in unusually high levels of volatility in domestic and foreign financial markets that has caused losses for investors and may occur again in the future. The value of a security may decline due to adverse issuer-specific conditions, general market conditions unrelated to a particular issuer, such as changes in interest or inflation rates, or factors that affect a particular industry or industries. Changes in the financial condition of a single issuer or market segment also can impact the market as a whole. Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, pandemics, public health crises, natural disasters and related events have led, and in the future may continue to lead, to instability in world economies and markets generally and reduced liquidity in equity, credit and fixed-income markets, which may disrupt economies and markets and adversely affect the value of your investment. Changes in value may be temporary or may last for extended periods.
Policy changes by the U.S. government and/or Federal Reserve and political events within the U.S. and abroad, such as changes in the U.S. presidential administration and Congress, the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat or occurrence of a federal government shutdown and threats or the occurrence of a failure to increase the federal government’s debt limit, which could result in a default on the government’s obligations, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree.
Markets and market participants are increasingly reliant upon both publicly available and proprietary information data systems. Data imprecision, software or other technology malfunctions, programming inaccuracies, unauthorized use or access, and similar circumstances may impair the performance of these systems and may have an adverse impact upon a single issuer, a group of issuers, or the market at large.
The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations.
Recent Market Events Risk. Both U.S. and international markets have experienced significant volatility in recent months and years. As a result of such volatility, investment returns may fluctuate significantly. Moreover, the risks discussed herein associated with an investment in the Fund may be increased.
Although interest rates were unusually low in the  U.S. and abroad for a period of time, in 2022, the U.S. Federal Reserve (the “Federal Reserve”) and certain foreign central banks began to raise interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Additionally, various economic and political factors could cause the Federal Reserve or foreign central banks to change their approach in the future and such actions may result in an economic slowdown in the U.S. and abroad. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of
default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility, reduce liquidity across various markets or decrease confidence in the markets. High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. There is no assurance that the U.S. Congress will act to raise the nation’s debt ceiling, a failure to do so could cause market turmoil and substantial investment risks that cannot be fully predicted. Unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy.
Some countries, including the U.S., have adopted more protectionist trade policies. Slowing global economic growth, imposition of tariffs and resulting impacts on global prices and supply chains, the rise in protectionist trade policies, inflationary pressures, changes to some major international trade agreements, risks associated with trade negotiations between countries and regions, including the U.S. and certain foreign nations, political or economic dysfunction within some nations, including the U.S., and dramatic changes in commodity and currency prices could have adverse effects that cannot be foreseen at the present time. In addition, if the U.S. dollar continues to be strong, it may decrease foreign demand for U.S. assets, which could have a negative impact on certain issuers and/or industries.
Tensions, war, or open conflict between nations, such as between Russia and Ukraine, in the Middle East or in eastern Asia could affect the economies of many nations, including the United States. The duration of ongoing hostilities in the Middle East and between Russia and Ukraine, and any sanctions and related events cannot be predicted. Those events present material uncertainty and risk with respect to markets globally and the performance of the Fund and its investments or operations could be negatively impacted.  
Regulators in the  U.S. have adopted a number of changes to regulations involving the markets and issuers, some of which apply to the Fund. The full effect of various newly adopted regulations is not currently known. Certain of these changes could limit the Fund’s ability to pursue its investment strategies or make certain investments, or may make it more costly for the Fund to operate, which may impact performance.  Additionally, it is possible that recently adopted regulations could be further revised or rescinded, which creates material uncertainty on their impact to the Fund.
Economists and others have expressed increasing concern about the potential effects of global climate change on property and security values. Certain issuers, industries and regions may be adversely affected by the impacts of climate change in ways that cannot be foreseen, including on the demand for and the development of goods and services and related production costs, and the impacts of legislation, regulation and international accords related to climate change, as well as any indirect consequences of regulation or business trends driven by climate change.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Mortgage-Backed and Mortgage-Related Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Mortgage-Backed and  Mortgage-Related Securities Risk
Investments in mortgage-backed and mortgage-related securities are influenced by the factors affecting the mortgages underlying the securities or the housing market. These securities tend to be more sensitive to changes in interest rates than other types of debt securities. Investments in mortgage-backed and mortgage-related securities also are subject to market risks for fixed-income securities, which include, but are not limited to, credit risk, interest rate risk, prepayment and extension risk, callable securities risk, valuation risk, liquidity risk, and restricted securities risk. A decline in the credit quality of the issuers of mortgage-backed and mortgage-related securities or instability in the markets for such securities may affect the value and liquidity of such securities, which could result in losses to the Fund. These securities are also subject to the risk of default on the underlying mortgages, particularly during periods of market downturn, and an unexpectedly high rate of defaults on the underlying assets will adversely affect the security’s value.
Mortgage Pass-Through Securities Risk. Mortgage pass-through securities provide for the “pass through” of the monthly payments made by individual borrowers on their residential or commercial mortgage loans, net of any fees by the security issuer and guarantor, as applicable, to the holder of the security. Mortgage pass-through securities are sensitive to interest rate changes, and small movements in interest rates, both increases and decreases, may quickly and significantly affect the value of certain mortgage pass-through securities. Mortgage pass-through securities involve interest rate risk, credit risk, prepayment risk and extension risk.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Other Investment Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Other Investment Companies Risk
To the extent that the Fund invests in shares of other registered investment companies, the Fund will indirectly bear the fees and expenses charged by those investment companies in addition to the Fund’s direct fees and expenses. To the extent the Fund invests in other investment companies that invest in equity securities, fixed-income securities and/or foreign securities, or that track an index, the Fund is subject to the risks associated with the underlying investments held by the investment company or the index fluctuations to which the investment company is subject. The Fund will be subject to the risks associated with investments in those companies, including but not limited to the following:
Government Money Market Funds Risk. Investments in government money market funds are subject to interest rate risk, credit risk, and market risk.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Prepayment and Extension Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Prepayment and Extension Risk
Prepayment and extension risk is the risk that a bond or other fixed-income security or investment might, in the case of prepayment risk, be called or otherwise converted, prepaid or redeemed before maturity and, in the case of extension risk, that the investment might not be prepaid as expected. Due to a decline in interest rates or excess cash flow into the issuer, a debt security may be called or otherwise converted, prepaid or redeemed before maturity. If this occurs, no additional interest will be paid on the investment. The Fund may have to reinvest the proceeds in another investment at a lower rate, may not benefit from an increase in value that may result from declining interest rates, and may lose any premium it paid to acquire the security, any of which could result in a reduced yield to the Fund. The rate of prepayments tends to increase as interest rates fall, which could cause the average maturity of the portfolio to shorten. Conversely, extension risk is the risk that a decrease in prepayments may, as a result of higher interest rates or other factors, result in the extension of a security’s effective maturity, increase the risk of default or delayed payment, heighten interest rate risk and increase the potential for a decline in an investment’s price. In addition, as a consequence of a decrease in prepayments, the amount of principal available to the Fund for investment would be reduced. Extensions of obligations could cause the Fund to exhibit additional volatility and hold securities paying lower-than-market rates of interest. Either case could hurt the Fund’s performance.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Redemption Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Redemption Risk
The Fund may experience periods of high levels of redemptions that could cause the Fund to sell assets at inopportune times or at a loss or depressed value. Heavy redemptions could hurt the Fund’s performance. The sale of assets to meet redemption requests may create net capital gains, which could cause the Fund to have to distribute substantial capital gains. Redemption risk is greater to the extent that one or more investors or intermediaries control a large percentage of investments in the Fund. In addition, redemption risk is heightened during periods of declining or illiquid markets. A rise in interest rates or other market developments may cause investors to move out of fixed-income securities on a large scale. During periods of heavy redemptions, the Fund may borrow funds through the interfund credit facility or from a bank line of credit, which may increase costs.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Secured, Partially Secured and Unsecured Obligation Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Secured, Partially Secured and Unsecured Obligation Risk
Debt obligations may be secured, partially secured or unsecured. Interests in secured and partially-secured obligations have the benefit of collateral and, typically, of restrictive covenants limiting the ability of the borrower to further encumber its assets. However, there is no assurance that the liquidation of collateral from a secured or partially-secured obligation would satisfy the borrower’s obligation, or that the collateral can be liquidated. Furthermore, there is a risk that the value of any collateral securing an obligation in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the obligation. In the event the borrower defaults, the Fund’s access to the collateral may be limited or delayed by bankruptcy or other
insolvency laws. Unsecured debt, including senior unsecured and subordinated debt, will not be secured by any collateral and will be effectively subordinated to a borrower’s secured indebtedness (to the extent of the collateral securing such indebtedness). With respect to unsecured obligations, the Fund lacks any collateral on which to foreclose to satisfy its claim in whole or in part. Such instruments generally have greater price volatility than that of fully secured holdings and may be less liquid.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Securities Selection Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Selection Risk
Securities selected for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to its performance index(es), or other funds with similar investment objectives or strategies.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | U.S. Government Securities and Government-Sponsored Enterprises Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
U.S. Government Securities and Government-Sponsored Enterprises Risk
A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed only as to the timely payment of coupons and the face value at maturity, not its current market price. The market prices for such securities are not guaranteed and will fluctuate. Certain securities held by the Fund that are issued by government-sponsored enterprises, such as the Federal National Mortgage Association (‘‘Fannie Mae’’), Federal Home Loan Mortgage Corporation (‘‘Freddie Mac’’), Federal Home Loan Bank (‘‘FHLB’’), and Federal Farm Credit Bank (“FFCB”), are not guaranteed by the U.S. Treasury and are not backed by the full faith and credit of the U.S. government, and no assurance can be given that the U.S. government will provide financial support if these organizations do not have the funds to meet future payment obligations. U.S. government securities and securities of government-sponsored enterprises are also subject to credit risk, interest rate risk and market risk. The rising U.S. national debt may lead to adverse impacts on the value of U.S. government securities due to potentially higher costs for the U.S. government to obtain new financing. It is possible that the U.S. government and government-sponsored enterprises will not have the funds to meet their payment obligations in the future.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Variable and Floating Rate Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Variable and Floating Rate Securities Risk
The coupons on variable and floating-rate securities are not fixed and may fluctuate based upon changes in market rates. A variable rate security has a coupon that is adjusted at pre-designated periods in response to changes in the market rate of interest on which the coupon is based. The coupon on a floating rate security is generally based on an interest rate, such as a money-market index, Secured Overnight Financing Rate (“SOFR”), or a Treasury bill rate. Variable and floating rate securities are subject to interest rate risk and credit risk. As short-term interest rates decline, the coupons on variable and floating-rate securities typically decrease. Alternatively, during periods of rising short-term interest rates, the coupons on variable and floating-rate securities typically increase. Changes in the coupons of variable and floating-rate securities may lag behind changes in market rates or may have limits on the maximum increases in the coupon rates. The value of variable and floating-rate securities may decline if their coupons do not rise as much, or as quickly, as interest rates in general. Conversely, variable and floating rate securities will not generally increase in value if interest rates decline. Certain types of variable and floating rate instruments may be subject to greater liquidity risk than other debt securities.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Callable Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Callable Securities Risk
The Fund may invest in fixed-income securities with call features. A call feature allows the issuer of the security to redeem or call the security prior to its stated maturity date. In periods of falling interest rates, issuers may be more likely to call in securities that are paying higher coupon rates than prevailing interest rates. In the event of a call, the Fund would lose the income that would have been earned to maturity on that security, and the proceeds received by the Fund may be invested in securities paying lower coupon rates and may not benefit from any increase in value that might otherwise result from declining interest rates.  
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Focused Holdings Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Focused Holdings Risk
Because the Fund may have a focused portfolio of fewer companies than other diversified funds, the increase or decrease of the value of a single investment may have a greater impact on the Fund’s net asset value (“NAV”) and total return when compared to other diversified funds.
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Bloomberg US Aggregate Bond Index (Reflects no deduction for fees, expenses or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 1.25%
5 Years rr_AverageAnnualReturnYear05 (0.33%)
Since Inception rr_AverageAnnualReturnSinceInception 1.13%
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Y Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.22%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.77%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.26%) [3]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 0.51%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 52
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 220
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 402
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 930
1 Year rr_AverageAnnualReturnYear01 (0.67%)
5 Years rr_AverageAnnualReturnYear05 (0.60%)
Since Inception rr_AverageAnnualReturnSinceInception 0.43%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 04, 2016
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | R6 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.67%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.26%) [3]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 0.41%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 42
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 188
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 347
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 810
1 Year rr_AverageAnnualReturnYear01 (0.57%)
5 Years rr_AverageAnnualReturnYear05 (0.48%)
Since Inception rr_AverageAnnualReturnSinceInception 0.53%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 28, 2019
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | R5 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.68%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.23%) [3]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 0.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 194
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 356
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 825
1 Year rr_AverageAnnualReturnYear01 (0.48%)
5 Years rr_AverageAnnualReturnYear05 (0.49%)
Since Inception rr_AverageAnnualReturnSinceInception 0.53%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 04, 2016
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Investor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.55%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.10%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.27%) [3]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 0.83%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 85
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 323
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 580
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,316
Annual Return 2017 rr_AnnualReturn2017 2.95%
Annual Return 2018 rr_AnnualReturn2018 0.50%
Annual Return 2019 rr_AnnualReturn2019 4.02%
Annual Return 2020 rr_AnnualReturn2020 4.31%
Annual Return 2021 rr_AnnualReturn2021 (2.23%)
Annual Return 2022 rr_AnnualReturn2022 (9.89%)
Annual Return 2023 rr_AnnualReturn2023 5.06%
Annual Return 2024 rr_AnnualReturn2024 (0.60%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarterly Return:8.18%4th Quarter 202301/01/2017 through 12/31/2024
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.18%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarterly Return:-5.80%3rd Quarter 202201/01/2017 through 12/31/2024
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.80%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2022
1 Year rr_AverageAnnualReturnYear01 (0.60%)
5 Years rr_AverageAnnualReturnYear05 (0.82%)
Since Inception rr_AverageAnnualReturnSinceInception 0.18%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 04, 2016
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Investor Class | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 (2.00%)
5 Years rr_AverageAnnualReturnYear05 (1.84%)
Since Inception rr_AverageAnnualReturnSinceInception (0.67%)
(American Beacon Funds) | (American Beacon Garcia Hamilton Quality Bond Fund) | Investor Class | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 (0.35%)
5 Years rr_AverageAnnualReturnYear05 (1.01%)
Since Inception rr_AverageAnnualReturnSinceInception (0.19%)
(American Beacon Funds) | (American Beacon International Equity Fund)  
Prospectus: rr_ProspectusTable  
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund’s investment objective is long-term capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis. More information about these and other discounts is available from your financial professional and in “Choosing Your Share Class” on page  67 of the Prospectus and “Additional Purchase and Sale Information for A Class Shares” on page  78  of the Statement of Additional Information (“SAI”). With respect to purchases of shares through specific intermediaries, you may find additional information regarding sales charge discounts and waivers in Appendix A to the Fund’s Prospectus entitled “Intermediary Sales Charge Discounts, Waivers and Other Information.”
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2026
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same, except that the Example reflects the fee waiver/expense reimbursement arrangement for the R6 Class shares through February 28, 2026. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. This Example reflects your costs as though C Class shares were held for the full 10-year period. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption of shares:
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 43% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 43.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in common stocks and securities convertible into common stocks (collectively, “stocks”) of issuers based in at least three different countries located outside the United States.
The Fund considers a company to be based in a country located outside the United States if the company is classified by  MSCI Inc. as a non-United States company. For companies that have not been classified by MSCI Inc., the sub-advisors may consider a company to be based outside the United States if:
the company’s security is primarily listed for trading in a non-United States market;  
the company is headquartered in a non-United States country; or  
the company has at least half of its assets or derives at least half of its revenues outside the United States.
The Fund primarily invests in countries represented in the MSCI® EAFE Index. The MSCI EAFE Index is designed to represent the performance of large- and mid-capitalization securities across 21 developed markets countries, including countries in Europe, Australasia and the Far East, and excluding the U.S. and Canada. It covers approximately 85% of the free float-adjusted market capitalization in each country. Companies included in the MSCI EAFE Index are selected from among the larger capitalization companies in these markets. The Fund may use foreign currency futures contracts, foreign currency forward contracts, including non-deliverable forward contracts (“NDFs”), and currency swaps as a hedge against foreign currency fluctuations.
The Fund principally invests in large-capitalization and mid-capitalization companies, and to a lesser extent in small-capitalization companies. The Fund’s investments in stocks may include depositary receipts, which may include American depositary receipts (“ADRs”), and U.S. dollar-denominated foreign stocks traded on U.S. exchanges. The Manager allocates the assets of the Fund among different sub-advisors. The Manager believes that this strategy may help the Fund outperform other investment styles over the longer term while reducing volatility and downside risk.
The sub-advisors select stocks that, in their opinion, have most or all of the following characteristics (relative to that stock’s country, sector or industry):
above-average return on equity or earnings growth potential,  
below-average price to earnings or price to cash flow ratio,  
below-average price to book value ratio, and
above-average dividend yields.  
The sub-advisors may consider potential changes in currency exchange rates when choosing stocks. Each of the sub-advisors determines the earnings growth prospects of companies based upon a combination of internal and external research using fundamental analysis and considering changing economic trends. The decision to sell a stock is typically based on the belief that the company is no longer considered undervalued or shows deteriorating fundamentals, or that better investment opportunities exist in other stocks. The Fund may have significant exposure to issuers located in, or with economic ties to, Europe and the United Kingdom. However, as the geographic composition of the Fund’s portfolio changes over time, the Fund’s exposure to Europe and/or the United Kingdom may decline, and the Fund’s exposure to other geographic areas may increase.
Each sub-advisor’s investment processes incorporate the sub-advisor’s environmental, social and/or governance (“ESG”) analysis as a consideration in the assessment of potential portfolio investments. However, as ESG information is just one investment consideration, ESG considerations are not solely determinative in any investment decision made by a sub-advisor. In addition, the sub-advisors do not use ESG considerations to limit, restrict or otherwise exclude companies or sectors from the Fund’s investment universe. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks.
The Fund may invest cash balances in a government money market fund advised by the Manager, with respect to which the Manager receives a management fee. The Fund also may purchase and sell equity index futures contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs. The Fund may seek to earn additional income by lending its securities to certain qualified broker-dealers and institutions.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Fund Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index, as well as an additional market index with characteristics that are similar to those of the Fund, for the periods indicated.
The chart and the table show the performance of the Fund’s Investor Class shares for all periods. In the table below, for the period prior to February 28, 2017, the performance of the R6 Class shares reflects the returns of the R5 Class shares of the Fund. The R6 Class shares would have had similar annual returns to the R5 Class shares of the Fund because the shares of each class represent investments in the same portfolio securities. However, as reflected in the table in the “Fees and Expenses of the Fund” section of this Fund Summary, the expenses of the R5 Class shares of the Fund differ from those of the R6 Class shares, which would affect performance. To the extent that the R5 Class shares may have had lower expenses than the R6 Class shares prior to February 28, 2017, the performance of the R5 Class shares would likely have been higher than the performance the R6 Class shares would have realized during the same period. The performance of the R6 Class shares shown in the table has not been adjusted for differences in operating expenses between the R6 Class shares and R5 Class shares.  C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. In the table below, the performance for C Class shares reflects the performance as though C Class shares were held for the full 10-year period.
You may obtain updated performance information on the Fund’s website at www.americanbeaconfunds.com. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index, as well as an additional market index with characteristics that are similar to those of the Fund, for the periods indicated.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.americanbeaconfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar year total returns for Investor Class Shares. Year Ended 12/31
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarterly Return:
20.71%4th Quarter 2022
01/01/2015 through 12/31/2024
Lowest Quarterly Return:
-29.98%1st Quarter 2020
01/01/2015 through 12/31/2024
Performance Table Heading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2024
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation. After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
(American Beacon Funds) | (American Beacon International Equity Fund) | Risk Lose Money [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund.
(American Beacon Funds) | (American Beacon International Equity Fund) | Risk Not Insured Depository Institution [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
(American Beacon Funds) | (American Beacon International Equity Fund) | Convertible Securities Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Convertible Securities Risk
The value of a convertible security typically increases or decreases with the price of the underlying common stock. In general, a convertible security is subject to the market risks of stocks when the underlying stock’s price is high relative to the conversion price and is subject to the market risks of debt securities when the underlying stock’s price is low relative to the conversion price. The general market risks of debt securities that are common to convertible securities include, but are not limited to, interest rate risk and credit risk. Many convertible securities have credit ratings that are below investment grade and are subject to the same risks as an investment in below investment grade debt securities (commonly known as “junk bonds”). Lower-rated debt securities may fluctuate more widely in price and yield than investment grade debt securities and may fall in price during times when the economy is weak or is expected to become weak. Convertible securities are subject to the risk that the credit standing of the issuer may have an effect on the convertible security‘s investment value. In addition, to the extent the Fund invests in convertible securities issued by small- or mid-capitalization companies, it will be subject to the market risks of investing in such companies. The stocks of small- and mid-capitalization companies may fluctuate more widely in price than the market as a whole and there may also be less trading in small- or mid-capitalization stocks. Convertible securities are sensitive to movement in interest rates.
(American Beacon Funds) | (American Beacon International Equity Fund) | Counterparty Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Counterparty Risk
The Fund is subject to the risk that a party or participant to a transaction, such as a broker or a derivative counterparty, will be unwilling or unable to satisfy its obligation to make timely principal, interest or settlement payments or to otherwise honor its obligations to the Fund.
(American Beacon Funds) | (American Beacon International Equity Fund) | Credit Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Credit Risk
The Fund is subject to the risk that the issuer, guarantor or insurer of an obligation, or the counterparty to a transaction, may fail, or become less able or unwilling, to make timely payment of interest or principal or otherwise honor its obligations or default completely. Changes in the actual or perceived creditworthiness of an issuer, or a downgrade or default affecting any of the Fund’s securities, could affect the Fund’s performance. Generally, the longer the maturity and the lower the credit quality of a security, the more sensitive it is to credit risk.
(American Beacon Funds) | (American Beacon International Equity Fund) | Cybersecurity and Operational Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers and third-party fund distribution platforms, including the ability of shareholders to transact in the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. It is not possible for the Fund or its service providers to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. The Fund cannot control the cybersecurity and operational plans and systems of its service providers, its counterparties or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.
(American Beacon Funds) | (American Beacon International Equity Fund) | Dividend Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Dividend Risk
An issuer of stock held by the Fund may choose not to declare a dividend or the dividend rate might not remain at current levels or increase over time. Dividend paying stocks might not experience the same level of earnings growth or capital appreciation as non-dividend paying stocks. Securities that pay dividends may be sensitive to changes in interest rates and, as interest rates rise or fall, the prices of such securities may fall.
(American Beacon Funds) | (American Beacon International Equity Fund) | Environmental, Social, and/or Governance Investing Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Environmental, Social, and/or Governance Investing Risk
The use of environmental, social, and/or governance (“ESG”) considerations by  a sub-advisor may cause the Fund to make different investments than funds that have a similar investment style but do not incorporate such considerations in their strategy. As with the use of any investment considerations involved in investment decisions, there is no guarantee that the use of any ESG investment considerations will result in the selection of issuers that will outperform other issuers or help reduce risk in the Fund. The Fund may underperform funds that do not incorporate these considerations or incorporate different ESG considerations. Although a  sub-advisor has established its own process to oversee ESG integration in accordance with the Fund’s strategies, successful integration of ESG factors will depend on a  sub-advisor’s skill in researching, identifying, and applying these factors, as well as on the availability of relevant data. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks. The regulatory landscape with respect to ESG investing in the United States is evolving and any future rules or regulations may require the Fund to change its investment process with respect to the integration of ESG factors.
(American Beacon Funds) | (American Beacon International Equity Fund) | Equity Investments Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Equity Investments Risk
Equity securities represent ownership interests in companies and are subject to investment risk, issuer risk and market risk. In general, the values of stocks and other equity securities fluctuate, and sometimes widely fluctuate, in response to changes in a company’s financial condition as well as general market, economic and political conditions and other factors. The Fund may experience a significant or complete loss on its investment in an equity security. In addition, stock prices may be particularly sensitive to rising interest rates, which increase borrowing costs and the costs of capital.  The Fund may invest in the following equity securities, which may expose the Fund to the following additional risks:
Common Stock Risk. The value of a company’s common stock may fall as a result of factors affecting the company, companies in the same industry or sector, or the financial markets overall. Common stock generally is subordinate to preferred stock upon the liquidation or bankruptcy of the issuing company.
Depositary Receipts Risk. Depositary receipts are subject to certain of the risks associated with investing directly in foreign securities, including, but not limited to, currency exchange rate fluctuations, political and financial instability in the home country of a particular depositary receipt, less liquidity, more volatility, less government regulation and supervision and delays in transaction settlement.
U.S. Dollar-Denominated Foreign Stocks Traded on U.S. Exchanges Risk. Foreign (non-U.S.) companies that list their stocks on U.S. exchanges may be exempt from certain accounting and corporate governance standards that apply to U.S. companies that list on the same exchange. Performance of these stocks can be impacted by political and financial instability in the home country of a particular foreign company, and delisting of these stocks could impact the  Fund‘s ability to transact in such securities and could significantly impact their liquidity and market price.
(American Beacon Funds) | (American Beacon International Equity Fund) | Investment Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Investment Risk
An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.
(American Beacon Funds) | (American Beacon International Equity Fund) | Issuer Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Issuer Risk
The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.
(American Beacon Funds) | (American Beacon International Equity Fund) | Large-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Large-Capitalization Companies Risk
The securities of large market capitalization companies may underperform other segments of the market because such companies may be less responsive to competitive challenges and opportunities and, at times, such companies may be out of favor with investors. Many larger-capitalization companies also may be unable to attain the high growth rates of successful smaller companies, especially during periods of economic expansion.
(American Beacon Funds) | (American Beacon International Equity Fund) | Market Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Market Risk
The Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. Equity securities generally have greater price volatility than fixed-income securities, although under certain market conditions fixed-income securities may have comparable or greater price volatility. During a general downturn in the securities markets, multiple assets may decline in value simultaneously. Prices in many financial markets have increased significantly over the last decade, but there have also been periods of adverse market and financial developments and cyclical change during that timeframe, which have resulted in unusually high levels of volatility in domestic and foreign financial markets that has caused losses for investors and may occur again in the future. The value of a security may decline due to adverse issuer-specific conditions, general market conditions unrelated to a particular issuer, such as changes in interest or inflation rates, or factors that affect a particular industry or industries. Changes in the financial condition of a single issuer or market segment also can impact the market as a whole. Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, pandemics, public health crises, natural disasters and related events have led, and in the future may continue to lead, to instability in world economies and markets generally and reduced liquidity in equity, credit and fixed-income markets, which may disrupt economies and markets and adversely affect the value of your investment. Changes in value may be temporary or may last for extended periods.
Policy changes by the U.S. government and/or Federal Reserve and political events within the U.S. and abroad, such as changes in the U.S. presidential administration and Congress, the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat or occurrence of a federal government shutdown and threats or the occurrence of a failure to increase the federal government’s debt limit, which could result in a default on the government’s obligations, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree.
Markets and market participants are increasingly reliant upon both publicly available and proprietary information data systems. Data imprecision, software or other technology malfunctions, programming inaccuracies, unauthorized use or access, and similar circumstances may impair the performance of these systems and may have an adverse impact upon a single issuer, a group of issuers, or the market at large.
The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations.
Recent Market Events Risk. Both U.S. and international markets have experienced significant volatility in recent months and years. As a result of such volatility, investment returns may fluctuate significantly. Moreover, the risks discussed herein associated with an investment in the Fund may be increased.
Although interest rates were unusually low in the  U.S. and abroad for a period of time, in 2022, the U.S. Federal Reserve (the “Federal Reserve”) and certain foreign central banks began to raise interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict
the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Additionally, various economic and political factors could cause the Federal Reserve or foreign central banks to change their approach in the future and such actions may result in an economic slowdown in the U.S. and abroad. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility, reduce liquidity across various markets or decrease confidence in the markets. High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. There is no assurance that the U.S. Congress will act to raise the nation’s debt ceiling, a failure to do so could cause market turmoil and substantial investment risks that cannot be fully predicted. Unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy.
Some countries, including the U.S., have adopted more protectionist trade policies. Slowing global economic growth, imposition of tariffs and resulting impacts on global prices and supply chains, the rise in protectionist trade policies, inflationary pressures, changes to some major international trade agreements, risks associated with trade negotiations between countries and regions, including the U.S. and certain foreign nations, political or economic dysfunction within some nations, including the U.S., and dramatic changes in commodity and currency prices could have adverse effects that cannot be foreseen at the present time. In addition, if the U.S. dollar continues to be strong, it may decrease foreign demand for U.S. assets, which could have a negative impact on certain issuers and/or industries.
Tensions, war, or open conflict between nations, such as between Russia and Ukraine, in the Middle East or in eastern Asia could affect the economies of many nations, including the United States. The duration of ongoing hostilities in the Middle East and between Russia and Ukraine, and any sanctions and related events cannot be predicted. Those events present material uncertainty and risk with respect to markets globally and the performance of the Fund and its investments or operations could be negatively impacted.  
Regulators in the  U.S. have adopted a number of changes to regulations involving the markets and issuers, some of which apply to the Fund. The full effect of various newly adopted regulations is not currently known. Certain of these changes could limit the Fund’s ability to pursue its investment strategies or make certain investments, or may make it more costly for the Fund to operate, which may impact performance.  Additionally, it is possible that recently adopted regulations could be further revised or rescinded, which creates material uncertainty on their impact to the Fund.
Economists and others have expressed increasing concern about the potential effects of global climate change on property and security values. Certain issuers, industries and regions may be adversely affected by the impacts of climate change in ways that cannot be foreseen, including on the demand for and the development of goods and services and related production costs, and the impacts of legislation, regulation and international accords related to climate change, as well as any indirect consequences of regulation or business trends driven by climate change.
(American Beacon Funds) | (American Beacon International Equity Fund) | Mid-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Mid-Capitalization Companies Risk
Investing in the securities of mid-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since mid-capitalization companies may have narrower commercial markets and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity, and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.
(American Beacon Funds) | (American Beacon International Equity Fund) | Multiple Sub-Advisor Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Multiple Sub-Advisor Risk
The Manager may allocate the Fund’s assets among multiple sub-advisors, each of which is responsible for investing its allocated portion of the Fund’s assets. To a significant extent, the Fund’s performance will depend on the success of the Manager in selecting and overseeing the sub-advisors and allocating the Fund’s assets to sub-advisors. The sub-advisors’ investment styles may not work together as planned, which could adversely affect the performance of the Fund. In addition, because each sub-advisor makes its trading decisions independently, the sub-advisors may purchase or sell the same security at the same time without aggregating their transactions. This may cause unnecessary brokerage and other expenses.
(American Beacon Funds) | (American Beacon International Equity Fund) | Other Investment Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Other Investment Companies Risk
To the extent that the Fund invests in shares of other registered investment companies, the Fund will indirectly bear the fees and expenses charged by those investment companies in addition to the Fund’s direct fees and expenses. To the extent the Fund invests in other investment companies that invest in equity securities, fixed-income securities and/or foreign securities, or that track an index, the Fund is subject to the risks associated with the underlying investments held by the investment company or the index fluctuations to which the investment company is subject. The Fund will be subject to the risks associated with investments in those companies, including but not limited to the following:
Government Money Market Funds Risk. Investments in government money market funds are subject to interest rate risk, credit risk, and market risk. Interest rate risk is the risk that rising interest rates could cause the value of such an investment to decline.  
(American Beacon Funds) | (American Beacon International Equity Fund) | Securities Lending Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Lending Risk
To the extent the Fund lends its securities, it may be subject to the following risks: (i) the securities in which the Fund reinvests cash collateral may decrease in value, causing the Fund to incur a loss, or may not perform sufficiently to cover the Fund’s payment to the borrower of a pre-negotiated fee or “rebate” for the use of that cash collateral in connection with the loan; (ii) non-cash collateral may decline in value, resulting in the Fund becoming under-secured; (iii) delays may occur in the recovery of loaned securities from borrowers, which could result in the Fund being unable to vote proxies or settle transactions or cause the Fund to incur increased costs; and (iv) if the borrower becomes subject to insolvency or similar proceedings, the Fund could incur delays in its ability to enforce its rights in its collateral.
(American Beacon Funds) | (American Beacon International Equity Fund) | Securities Selection Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Selection Risk
Securities selected for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to its performance index(es), or other funds with similar investment objectives or strategies.
(American Beacon Funds) | (American Beacon International Equity Fund) | Segregated Assets Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Segregated Assets Risk
In connection with certain transactions that may give rise to future payment obligations, the Fund may be required to maintain a segregated amount of, or otherwise earmark, cash or liquid securities to cover the obligation. Segregated assets generally cannot be sold while the position they are covering is outstanding, unless they are replaced with other assets of equal value. The need to segregate cash or other liquid securities could limit the Fund’s ability to pursue other opportunities as they arise.
(American Beacon Funds) | (American Beacon International Equity Fund) | Value Stocks Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Value Stocks Risk
Value stocks are subject to the risk that their intrinsic or full value may never be realized by the market, that a stock judged to be undervalued may be appropriately priced, or that their prices may decline. Although value stocks tend to be inexpensive relative to their earnings, they can continue to be inexpensive for long periods of time. The Fund’s investments in value stocks seek to limit potential downside price risk over time; however, value stock prices still may decline substantially. In addition, the Fund may produce more modest gains as a trade-off for this potentially lower risk. The Fund’s investment in value stocks could cause the Fund to underperform funds that use a growth or non-value approach to investing or have a broader investment style.
(American Beacon Funds) | (American Beacon International Equity Fund) | Currency Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Currency Risk
The Fund may have exposure to foreign currencies. Foreign currencies may fluctuate significantly over short periods of time, may be affected unpredictably by intervention, or the failure to intervene, of the  U.S. or foreign governments or central banks, and may be affected by currency controls or political developments in the U.S. or abroad. Foreign currencies may also decline in value relative to the U.S. dollar and other currencies and thereby affect the Fund’s investments.
(American Beacon Funds) | (American Beacon International Equity Fund) | Derivatives Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Derivatives Risk
Derivatives may involve significant risk. The use of derivative instruments may expose the Fund to additional risks that it would not be subject to if it invested directly in the securities or other instruments underlying those derivatives, including the high degree of leverage often embedded in such instruments, and potential material and prolonged deviations between the theoretical value and realizable value of a derivative. The use of derivatives may also increase any adverse effects resulting from the underperformance of strategies, asset classes and market exposures to which the Fund has allocated its assets. Derivatives may at times be highly illiquid, and the Fund may not be able to close out or sell a derivative at a particular time or at an anticipated price. Certain derivatives may be difficult to value, and valuation may be more difficult in times of market turmoil. Derivatives may also be more volatile than other types of investments. Derivative investments can increase portfolio turnover and transaction costs. Derivatives also are subject to counterparty risk  and credit risk. As a result, the Fund may not recover its investment or may only obtain a limited recovery, and any recovery may be delayed.  Not all derivative transactions require a counterparty to post collateral, which may expose the Fund to greater losses in the event of a default by a counterparty. Derivatives transactions requiring the Fund to post collateral may expose the Fund to greater losses in the event of a default by a counterparty.  There may be imperfect correlation between the behavior of a derivative and that of the reference instrument underlying the derivative. An abrupt change in the price of a reference instrument could render a derivative worthless. Derivatives may involve risks different from, and possibly greater than, the risks associated with investing directly in the reference instrument. The Fund may buy or sell derivatives not traded on an exchange, which may be subject to heightened  counterparty, liquidity and valuation risks. Suitable derivatives may not be available in all circumstances, and there can be no assurance that the Fund will use derivatives to reduce exposure to other risks when that might have been beneficial. Ongoing changes to the regulation of derivatives and changes in the regulation of funds using derivative instruments could limit the Fund’s ability to pursue its investment strategies. New regulation of derivatives may make them more costly, or may otherwise adversely affect their liquidity, value or performance.  In addition, the Fund’s investments in derivatives are subject to the following risks:
Foreign Currency Forward Contracts Risk. Foreign currency forward contracts, including non-deliverable forwards (“NDFs”), are derivative instruments pursuant to a contract where the parties agree to a fixed price for an agreed amount of foreign currency at an agreed date or to buy or sell a specific currency at a future date at a price set at the time of the contract and include the risks associated with fluctuations in currency. There are no limitations on daily price movements of forward contracts. There can be no assurance that any strategy used will succeed. Not all forward contracts, including NDFs, require a counterparty to post collateral, which may expose the Fund to greater losses in the event of a default by a counterparty. The use of foreign currency forward contracts may expose the Fund to additional risks, such as credit risk, liquidity risk, and counterparty risk, that it would not be subject to if it invested directly in the securities or currencies underlying the foreign currency forward contract. There are no limitations on daily price movements of forward contracts. There can be no assurance that any strategy used will succeed.
Futures Contracts Risk. Futures contracts are derivative instruments pursuant to a contract where the parties agree to a fixed price for an agreed amount of securities or other underlying assets at an agreed date. The use of such derivative instruments may expose the Fund to additional risks, such as liquidity risk and counterparty risk, that it would not be subject to if it invested directly in the securities underlying those derivatives. There can be no assurance that any strategy used will succeed. There may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes. There also can be no assurance that, at all times, a liquid market will exist for offsetting a futures contract that the Fund has previously bought or sold, and this may result in the inability to close a futures contract when desired. Futures contracts may experience potentially dramatic price changes, which will increase the volatility of the Fund and may involve a small investment of cash (the amount of initial and variation margin) relative to the magnitude of the risk assumed (the potential increase or decrease in the price of the futures contract). The Fund may invest in the following types of futures contracts:
Foreign Currency Futures Contracts  Risk. Foreign currency futures contracts expose the Fund to risks associated with fluctuations in the value of foreign currencies. Foreign currency futures contracts are similar to foreign currency forward contracts, except that they are traded on exchanges (and may have margin requirements) and are standardized as to contract size and delivery date. The Fund may use foreign currency futures contracts for the same purposes as foreign currency forward contracts, subject to Commodity Futures Trading Commission (“CFTC”) regulations.
Index Futures Contracts Risk. Futures contracts on indices expose the Fund to volatility in an underlying index.   
Swap Agreements Risk. Swap agreements or “swaps” are transactions in which the Fund and a counterparty agree to pay or receive payments at specified dates based upon or calculated by reference to changes in specified prices or rates or the performance of specified securities, indices or other assets based on a specified amount (the “notional” amount). Swaps can involve greater risks than a direct investment in an underlying asset, because swaps typically include a certain amount of embedded leverage and as such are subject to leverage risk. If swaps are used as a hedging strategy, the Fund is subject to the risk that the hedging strategy may not eliminate the risk that it is intended to offset, due to, among other reasons, the occurrence of unexpected price
movements or the non-occurrence of expected price movements. Swaps also may be difficult to value. Swaps may be subject to liquidity risk and counterparty risk, and swaps that are traded over-the-counter are not subject to standardized clearing requirements and may involve greater liquidity and counterparty risks.   The Fund may invest in the following types of swaps:
Currency Swaps Risk. Currency swaps may also be subject to currency risk.
(American Beacon Funds) | (American Beacon International Equity Fund) | Foreign Investing Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Foreign Investing Risk
Non-U.S. investments carry potential risks not associated with U.S. investments. Such risks may include, but are not limited to: (1) currency exchange rate fluctuations, (2) political and financial instability, (3) less liquidity, (4) lack of uniform accounting, auditing, recordkeeping and financial reporting standards, (5) greater volatility, (6) different government regulation and supervision of foreign stock exchanges, brokers and listed companies, and (7) delays or failures in transaction payment and settlement in some foreign markets. Additionally, trading in foreign markets generally involves higher transaction costs than trading in U.S. markets. The Fund’s investment in a foreign issuer may subject the Fund to regulatory, political, currency, security, economic and other risks associated with that country, including tariffs, trade disputes and sanctions. Global economic and financial markets have become increasingly interconnected and conditions (including recent volatility, terrorism, war and political instability) and events (including natural disasters) in one country, region or financial market may adversely impact issuers in a different country, region or financial market.
(American Beacon Funds) | (American Beacon International Equity Fund) | Geographic Concentration Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Geographic Concentration Risk
From time to time, based on market or economic conditions, the Fund may invest a significant portion of its assets in the securities of issuers located in, or with significant economic ties to, a single country or geographic region, which could increase the risk that economic, market, political, business, regulatory, diplomatic, social and environmental conditions in that particular country or geographic region may have a significant impact on the Fund’s performance. Investing in such a manner could cause the Fund’s performance to be more volatile than the performance of more geographically diverse funds. A decline in the economies or financial markets of one country or region may adversely affect the economies or financial markets of another.
European Securities Risk. The Fund’s performance may be affected by political, social and economic conditions in Europe, such as growth of economic output (the gross national product of the countries in the region), the rate of inflation, the rate at which capital is reinvested into European economies, the success of governmental actions to reduce budget deficits, the resource self-sufficiency of European countries, the monetary exchange rates between European countries, and conflict between European countries. The European financial markets have experienced and may continue to experience volatility and adverse trends due to concerns relating to economic downturns; rising government debt levels and the possible default on government debt; national unemployment in several European countries; public health crises; political unrest; economic sanctions; inflation; energy crises; and war and military conflict, such as the Russian invasion of Ukraine. A default or debt restructuring by any European country could adversely impact holders of that country’s debt and sellers of credit default swaps linked to that country’s creditworthiness, which may be located in other countries. Such a default or debt restructuring could affect exposures to European countries. In addition, issuers have faced difficulties obtaining credit or refinancing existing obligations, and financial markets have experienced extreme volatility and declines in asset values and liquidity. These events have affected the exchange rate of the Euro and may continue to significantly affect European countries.
 
Responses to financial problems by European governments, central banks, and others, including austerity measures and other reforms, may not produce the desired results, may result in social unrest and may limit future growth and economic recovery or may have unintended consequences. The Fund makes investments in securities of issuers that are domiciled in member states of the European Union (the “EU”). The economies and markets of European countries are often closely connected and interdependent, and events in one country in Europe can have an adverse impact on other European countries. One or more countries may abandon the Euro and/or withdraw from the EU. The impact of these actions, especially if they occur in a disorderly fashion, could be significant and far-reaching. The United Kingdom’s withdrawal from the EU could be an indication that one or more other countries may withdraw from the EU and/or abandon the Euro. These events and actions have affected, and may in the future affect, the value and exchange rate of the Euro and may continue to significantly affect the economies of every country in Europe, including countries that do not use the Euro and non-EU member states.
 
The continuing effects on the economies of European countries of the Russia/Ukraine war and Russia’s response to sanctions imposed by the  U.S., EU, UK and others, are impossible to predict, but have been and could continue to be significant. For example, exports in Eastern Europe have been disrupted for certain key commodities, pushing commodity prices to record highs. Also, both wholesale energy prices and energy prices charged to consumers in Europe have increased significantly.
United Kingdom Securities Risk.  The Fund’s exposure to issuers located in, or with economic ties to, the United Kingdom, could expose the Fund to risks associated with investments in the United Kingdom to a greater extent than more geographically diverse funds. Investments in United Kingdom issuers may subject the Fund to regulatory, political, currency, security, and economic risks specific to the United Kingdom. The United Kingdom has one of the largest economies in Europe, and the United States and other European countries are substantial trading partners of the United Kingdom. As a result, the United Kingdom economy may be impacted by changes to the economic condition of the United States and other European countries.
Increasing commodity prices and rising inflation levels caused or exacerbated by the war between Russia and Ukraine recently prompted the United Kingdom government to implement significant policy changes. It is difficult to predict what effects such policies (or the suggestion of such policies) may have and the duration of those effects, which may last for extended periods. These effects may negatively impact broad segments of business and the population and have a significant and rapid negative impact on the performance of the Fund’s investments.
Additionally, the transitional period following the United Kingdom’s departure from the European Union (commonly referred to as “Brexit”) ended on December 31, 2020 and European Union law ceased to have effect in the United Kingdom except to the extent retained by the United Kingdom by unilateral act. The United Kingdom and the European Union then reached a trade agreement that was ratified by all applicable United Kingdom and European Union governmental bodies. The economic effects of Brexit, including certain negative impacts on the ability of the United Kingdom to trade seamlessly with the European Union, are becoming clearer but some political, regulatory and commercial uncertainty in relation to the longer term impacts nevertheless remains to be resolved. Accordingly, there remains a risk that the aftermath of Brexit, including its ongoing effect on the United Kingdom’s relationships with other countries, including the United States, and with the European Union, may negatively impact the value of investments held by the Fund. Although a sub-advisor may hedge the Fund’s currency exposures back to the U.S. dollar, a depreciation of the British pound sterling and/or the Euro in relation to the U.S. dollar could adversely affect the Fund’s investments denominated in British pound sterling or Euros that are not fully hedged regardless of the performance of the underlying issuer.
(American Beacon Funds) | (American Beacon International Equity Fund) | Hedging Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Hedging Risk
If the Fund uses a hedging instrument at the wrong time or judges the market conditions incorrectly, or the hedged instrument does not correlate to the risk sought to be hedged, the hedge might be unsuccessful, reduce the Fund’s return, or create a loss. In addition, hedges, even when successful in mitigating risk, may not prevent the Fund from experiencing losses on its investments. Hedging instruments may also reduce or eliminate gains that may otherwise have been available had the Fund not used the hedging instruments.
(American Beacon Funds) | (American Beacon International Equity Fund) | Market Timing Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Market Timing Risk
The Fund is subject to the risk of market timing activities by investors due to the nature of the Fund’s investments, which requires the Fund, in certain instances, to fair value certain of its investments. Some investors may engage in frequent short-term trading in the Fund to take advantage of any price differentials that may be reflected in the net asset value (“NAV”) of the Fund’s shares. Frequent trading by Fund shareholders poses risks to other shareholders in the Fund, including (i) the dilution of the Fund’s NAV, (ii) an increase in the Fund’s expenses, and (iii) interference with the ability to execute efficient investment strategies.
(American Beacon Funds) | (American Beacon International Equity Fund) | Small-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Small-Capitalization Companies Risk
Investing in the securities of small-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since small-capitalization companies may have narrower commercial markets, and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.
(American Beacon Funds) | (American Beacon International Equity Fund) | Valuation Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Valuation Risk
Certain of the Fund’s assets may be valued at a price different from the price at which they can be sold. This risk may be especially pronounced for investments that are illiquid or may become illiquid, or securities that trade in relatively thin markets and/or markets that experience extreme volatility. The valuation of the Fund’s investments in an accurate and timely manner may be impacted by technological issues and/or errors by third party service providers, such as pricing services or accounting agents.
(American Beacon Funds) | (American Beacon International Equity Fund) | MSCI® EAFE Index (Net) (Reflects no deduction for fees, expenses or taxes, other than withholding taxes, as noted)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 3.82% [4]
5 Years rr_AverageAnnualReturnYear05 4.73% [4]
10 Years rr_AverageAnnualReturnYear10 5.20% [4]
(American Beacon Funds) | (American Beacon International Equity Fund) | MSCI® EAFE Value Index (Net) (Reflects no deduction for fees, expenses or taxes, other than withholding taxes, as noted)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 5.68% [4]
5 Years rr_AverageAnnualReturnYear05 5.09% [4]
10 Years rr_AverageAnnualReturnYear10 4.31% [4]
(American Beacon Funds) | (American Beacon International Equity Fund) | A Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 0.50% [5]
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.61%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.32% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.19% [7]
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [8]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 1.19%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 689
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 931
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,191
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,934
1 Year rr_AverageAnnualReturnYear01 (4.14%)
5 Years rr_AverageAnnualReturnYear05 2.67%
10 Years rr_AverageAnnualReturnYear10 3.23%
Inception Date rr_AverageAnnualReturnInceptionDate May 17, 2010
(American Beacon Funds) | (American Beacon International Equity Fund) | C Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.61%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.37% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.99% [7]
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [8]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 1.99%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 302
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 624
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,072
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,315
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 202
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 624
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,072
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,315
1 Year rr_AverageAnnualReturnYear01 (0.12%)
5 Years rr_AverageAnnualReturnYear05 3.11%
10 Years rr_AverageAnnualReturnYear10 3.07%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 01, 2010
(American Beacon Funds) | (American Beacon International Equity Fund) | Y Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.61%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.23% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85% [7]
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [8]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 271
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 471
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,047
1 Year rr_AverageAnnualReturnYear01 2.00%
5 Years rr_AverageAnnualReturnYear05 4.25%
10 Years rr_AverageAnnualReturnYear10 4.18%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 03, 2009
(American Beacon Funds) | (American Beacon International Equity Fund) | R6 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.61%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.16% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.78% [7]
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.08%) [8]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 71
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 241
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 425
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 957
1 Year rr_AverageAnnualReturnYear01 2.12%
5 Years rr_AverageAnnualReturnYear05 4.38%
10 Years rr_AverageAnnualReturnYear10 4.31%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 28, 2017
(American Beacon Funds) | (American Beacon International Equity Fund) | Advisor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.61%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.39% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.26% [7]
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [8]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 1.26%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 128
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 399
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 691
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,521
1 Year rr_AverageAnnualReturnYear01 1.65%
5 Years rr_AverageAnnualReturnYear05 3.83%
10 Years rr_AverageAnnualReturnYear10 3.78%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 2003
(American Beacon Funds) | (American Beacon International Equity Fund) | R5 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.61%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.16% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.78% [7]
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [8]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 0.78%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 80
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 249
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 433
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 964
1 Year rr_AverageAnnualReturnYear01 2.09%
5 Years rr_AverageAnnualReturnYear05 4.31%
10 Years rr_AverageAnnualReturnYear10 4.25%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 07, 1991
(American Beacon Funds) | (American Beacon International Equity Fund) | Investor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.61%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.49% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.11% [7]
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [8]
Total Annual Fund Operating Expenses After Expense Reimbursement rr_NetExpensesOverAssets 1.11%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 113
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 352
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 611
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,350
Annual Return 2015 rr_AnnualReturn2015 (2.05%)
Annual Return 2016 rr_AnnualReturn2016 (0.10%)
Annual Return 2017 rr_AnnualReturn2017 24.39%
Annual Return 2018 rr_AnnualReturn2018 (16.64%)
Annual Return 2019 rr_AnnualReturn2019 19.00%
Annual Return 2020 rr_AnnualReturn2020 0.73%
Annual Return 2021 rr_AnnualReturn2021 9.30%
Annual Return 2022 rr_AnnualReturn2022 (11.15%)
Annual Return 2023 rr_AnnualReturn2023 22.07%
Annual Return 2024 rr_AnnualReturn2024 1.78%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarterly Return:20.71%4th Quarter 202201/01/2015 through 12/31/2024
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.71%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2022
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarterly Return:-29.98%1st Quarter 202001/01/2015 through 12/31/2024
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (29.98%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
1 Year rr_AverageAnnualReturnYear01 1.78%
5 Years rr_AverageAnnualReturnYear05 3.98%
10 Years rr_AverageAnnualReturnYear10 3.91%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1994
(American Beacon Funds) | (American Beacon International Equity Fund) | Investor Class | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 (3.49%)
5 Years rr_AverageAnnualReturnYear05 2.12%
10 Years rr_AverageAnnualReturnYear10 2.65%
(American Beacon Funds) | (American Beacon International Equity Fund) | Investor Class | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 3.88%
5 Years rr_AverageAnnualReturnYear05 3.03%
10 Years rr_AverageAnnualReturnYear10 3.08%
(American Beacon Funds) | (American Beacon Large Cap Value Fund)  
Prospectus: rr_ProspectusTable  
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund’s investment objective is long-term capital appreciation and current income.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis. More information about these and other discounts is available from your financial professional and in “Choosing Your Share Class” on page  67 of the Prospectus and “Additional Purchase and Sale Information for A Class Shares” on page  78  of the Statement of Additional Information (“SAI”). With respect to purchases of shares through specific intermediaries, you may find additional information regarding sales charge discounts and waivers in Appendix A to the Fund’s Prospectus entitled “Intermediary Sales Charge Discounts, Waivers and Other Information.”
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. This Example reflects your costs as though C Class shares were held for the full 10-year period. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption of shares:
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 26% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 26.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in equity securities of large market capitalization U.S. companies that the Fund considers to have value characteristics.
The Fund considers large market capitalization companies to be those with market capitalizations within the market capitalization range of the companies in the Russell 1000® Index at the time of investment. The Russell 1000 Index measures the performance of the 1,000 largest  U.S. companies based on total market capitalization. As of December 31, 2024, the Russell 1000 Index consisted of companies with market capitalizations of $351.6 million and greater. The Fund considers a company to be a U.S. company if:
the company is incorporated in the United States;  
the company’s security is primarily listed for trading in a United States market;  
the company is headquartered in the United States; or  
the company has at least half of its assets or derives at least half of its revenues in the United States.
The Fund considers a company to have value characteristics if it has one or more of the following characteristics (relative to the S&P 500® Index):
below-average price to earnings ratio,
below-average price to book value ratio,
below-average price to cash flow ratio, or
below-average price to sales ratio.
The Fund principally invests in large-capitalization and mid-capitalization companies, and to a lesser extent in small-capitalization companies.  The Fund’s investments in equity securities may include common stocks, depositary receipts, which may include American depositary receipts (“ADRs”) and global depositary receipts (“GDRs”), and U.S. dollar-denominated foreign stocks traded on U.S. exchanges (collectively referred to as “stocks”). The Fund’s investments in stocks include dividend-paying stocks.
The Manager allocates the assets of the Fund among different sub-advisors. The Manager believes that this strategy may help the Fund outperform other investment styles over the longer term while reducing volatility and downside risk.
Each of the Fund’s sub-advisors determines the earnings growth prospects of companies based upon a combination of internal and external research using fundamental analysis and considering changing economic trends. The sub-advisors typically seek to invest in companies that they believe are undervalued at the time of purchase. The decision to sell a stock is typically based on the belief that the company is no longer considered undervalued or shows deteriorating fundamentals, or that better investment opportunities exist in other stocks.  
Certain sub-advisors’ investment processes incorporate those sub-advisors’ environmental, social and/or governance (“ESG”) analyses as a consideration in the assessment of potential portfolio investments. However, as ESG information is just one investment consideration, ESG considerations are not solely determinative in any investment decision made by a sub-advisor. In addition, the sub-advisors do not use ESG considerations to limit, restrict or otherwise exclude companies or sectors from the Fund’s investment universe. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks. The sub-advisors make their own decisions with respect to whether to consider ESG factors and if so, how much consideration to give to ESG factors in the security analysis and selection processes.
The Fund may invest cash balances in a government money market fund advised by the Manager, with respect to which the Manager receives a management fee.  The Fund also may purchase and sell equity index futures contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs. The Fund may seek to earn additional income by lending its securities to certain qualified broker-dealers and institutions.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Fund Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index, as well as an additional market index with characteristics that are similar to those of the Fund,  for the periods indicated.
The chart and the table show the performance of the Fund’s Investor Class shares for all periods. In the table below, for the period prior to February 28, 2017, the performance of the R6 Class shares reflects the returns of the R5 Class shares of the Fund. The R6 Class shares would have had similar annual returns to the R5 Class shares of the Fund because the shares of each class represent investments in the same portfolio securities. However, as reflected in the table in the “Fees and Expenses of the Fund” section of this Fund Summary, the expenses of the R5 Class shares of the Fund differ from those of the R6 Class shares, which would affect performance. To the extent that the R5 Class shares may have had lower expenses than the R6 Class shares prior to February 28, 2017, the performance of the R5 Class shares would likely have been higher than the performance the R6 Class shares would have realized during the same period. The performance of the R6 Class shares shown in the table has not been adjusted for differences in operating expenses between the R6 Class shares and R5 Class shares.  C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. In the table below, the performance for C Class shares reflects the performance as though C Class shares were held for the full 10-year period.
You may obtain updated performance information on the Fund’s website at www.americanbeaconfunds.com. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index, as well as an additional market index with characteristics that are similar to those of the Fund,  for the periods indicated.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.americanbeaconfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar year total returns for Investor Class Shares. Year Ended 12/31
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarterly Return:
20.56%4th Quarter 2020
01/01/2015 through 12/31/2024
Lowest Quarterly Return:
-30.18%1st Quarter 2020
01/01/2015 through 12/31/2024
Performance Table Heading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2024
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation. After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Risk Lose Money [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Risk Not Insured Depository Institution [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Cybersecurity and Operational Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers and third-party fund distribution platforms, including the ability of shareholders to transact in the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. It is not possible for the Fund or its service providers to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. The Fund cannot control the cybersecurity and operational plans and systems of its service providers, its counterparties or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Dividend Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Dividend Risk
An issuer of stock held by the Fund may choose not to declare a dividend or the dividend rate might not remain at current levels or increase over time. Dividend paying stocks might not experience the same level of earnings growth or capital appreciation as non-dividend paying stocks. Securities that pay dividends may be sensitive to changes in interest rates and, as interest rates rise or fall, the prices of such securities may fall.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Environmental, Social, and/or Governance Investing Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Environmental, Social, and/or Governance Investing Risk
The use of environmental, social, and/or governance (“ESG”) considerations by  a sub-advisor may cause the Fund to make different investments than funds that have a similar investment style but do not incorporate such considerations in their strategy. As with the use of any investment considerations involved in investment decisions, there is no guarantee that the use of any ESG investment considerations will result in the selection of issuers that will outperform other issuers or help reduce risk in the Fund. The Fund may underperform funds that do not incorporate these considerations or incorporate different ESG considerations. Although a  sub-advisor has established its own process to oversee ESG integration in accordance with the Fund’s strategies, successful integration of ESG factors will depend on a  sub-advisor’s skill in researching, identifying, and applying these factors, as well as on the availability of relevant data. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks. The regulatory landscape with respect to ESG investing in the United States is evolving and any future rules or regulations may require the Fund to change its investment process with respect to the integration of ESG factors.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Equity Investments Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Equity Investments Risk
Equity securities represent ownership interests in companies and are subject to investment risk, issuer risk and market risk. In general, the values of stocks and other equity securities fluctuate, and sometimes widely fluctuate, in response to changes in a company’s financial condition as well as general market, economic and political conditions and other factors. The Fund may experience a significant or complete loss on its investment in an equity security. In addition, stock prices may be particularly sensitive to rising interest rates, which increase borrowing costs and the costs of capital.  The Fund may invest in the following equity securities, which may expose the Fund to the following additional risks:
Common Stock Risk. The value of a company’s common stock may fall as a result of factors affecting the company, companies in the same industry or sector, or the financial markets overall. Common stock generally is subordinate to preferred stock upon the liquidation or bankruptcy of the issuing company.
Depositary Receipts Risk. Depositary receipts are subject to certain of the risks associated with investing directly in foreign securities, including, but not limited to, currency exchange rate fluctuations, political and financial instability in the home country of a particular depositary receipt, less liquidity, more volatility, less government regulation and supervision and delays in transaction settlement.
U.S. Dollar-Denominated Foreign Stocks Traded on U.S. Exchanges Risk. Foreign (non-U.S.) companies that list their stocks on U.S. exchanges may be exempt from certain accounting and corporate governance standards that apply to U.S. companies that list on the same exchange. Performance of these stocks can be impacted by political and financial instability in the home country of a particular foreign company, and delisting of these stocks could impact the  Fund‘s ability to transact in such securities and could significantly impact their liquidity and market price.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Foreign Exposure Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Foreign Exposure Risk
Exposure to  non-U.S. issuers carries potential risks not associated with exposure to U.S. issuers. Such risks may include, but are not limited to: (1) political and financial instability, (2) less liquidity, (3) greater volatility, and (4) different government regulation The Fund’s exposure to a foreign issuer may subject the Fund to regulatory, political, currency, security, economic and other risks associated with that country, including tariffs, trade disputes and sanctions. Global economic and financial markets have become increasingly interconnected and conditions (including recent volatility, terrorism, war and political instability) and events (including natural disasters) in one country, region or financial market may adversely impact issuers in a different country, region or financial market.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Futures Contracts Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Futures Contracts Risk
Futures contracts are derivative instruments pursuant to a contract where the parties agree to a fixed price for an agreed amount of securities or other underlying assets at an agreed date. The use of such derivative instruments may expose the Fund to additional risks, such as credit risk, liquidity risk, and counterparty risk, that it would not be subject to if it invested directly in the securities underlying those derivatives. There can be no assurance that any strategy used will succeed. There may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes. There also can be no assurance that, at all times, a liquid market will exist for offsetting a futures contract that the Fund has previously bought or sold, and this may result in the inability to close a futures contract when desired. Futures contracts may experience potentially dramatic price changes, which will increase the volatility of the Fund and may involve a small investment of cash (the amount of initial and variation margin) relative to the magnitude of the risk assumed (the potential increase or decrease in the price of the futures contract).   Use of derivatives is a highly specialized activity that can involve investment techniques and risks different from, and in some respects greater than, those associated with investing in more traditional investments. Derivatives can be highly complex and highly volatile and may perform in unanticipated ways. The Fund may invest in the following types of futures contracts:
Index Futures Contracts Risk. Futures contracts on indices expose the Fund to volatility in an underlying index.   
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Investment Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Investment Risk
An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Issuer Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Issuer Risk
The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Large-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Large-Capitalization Companies Risk
The securities of large market capitalization companies may underperform other segments of the market because such companies may be less responsive to competitive challenges and opportunities and, at times, such companies may be out of favor with investors. Many larger-capitalization companies also may be unable to attain the high growth rates of successful smaller companies, especially during periods of economic expansion.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Market Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Market Risk
The Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. Equity securities generally have greater price volatility than fixed-income securities, although under certain market conditions fixed-income securities may have comparable or greater price volatility. During a general downturn in the securities markets, multiple assets may decline in value simultaneously. Prices in many financial markets have increased significantly over the last decade, but there have also been periods of adverse market and financial developments and cyclical change during that timeframe, which have resulted in unusually high levels of volatility in domestic and foreign financial markets that has caused losses for investors and may occur again in the future. The value of a security may decline due to adverse issuer-specific conditions, general market conditions unrelated to a particular issuer, such as changes in interest or inflation rates, or factors that affect a particular industry or industries. Changes in the financial condition of a single issuer or market segment also can impact the market as a whole. Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, pandemics, public health crises, natural disasters and related events have led, and in the future may continue to lead, to instability in world economies and markets generally and reduced liquidity in equity, credit and fixed-income markets, which may disrupt economies and markets and adversely affect the value of your investment. Changes in value may be temporary or may last for extended periods.
Policy changes by the U.S. government and/or Federal Reserve and political events within the U.S. and abroad, such as changes in the U.S. presidential administration and Congress, the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat or occurrence of a federal government shutdown and threats or the occurrence of a failure to increase the federal government’s debt limit, which could result in a default on the government’s obligations, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree.
Markets and market participants are increasingly reliant upon both publicly available and proprietary information data systems. Data imprecision, software or other technology malfunctions, programming inaccuracies, unauthorized use or access, and similar circumstances may impair the performance of these systems and may have an adverse impact upon a single issuer, a group of issuers, or the market at large.
The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations.
Recent Market Events Risk. Both U.S. and international markets have experienced significant volatility in recent months and years. As a result of such volatility, investment returns may fluctuate significantly. Moreover, the risks discussed herein associated with an investment in the Fund may be increased.
Although interest rates were unusually low in the  U.S. and abroad for a period of time, in 2022, the U.S. Federal Reserve (the “Federal Reserve”) and certain foreign central banks began to raise interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Additionally, various economic and political factors could cause the Federal Reserve or foreign central banks to change their approach in the future and such actions may result in an economic slowdown in the U.S. and abroad. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility, reduce liquidity across various markets or decrease confidence in the markets. High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. There is no assurance that the U.S. Congress will act to raise the nation’s debt ceiling, a failure to do so could cause market turmoil and substantial investment risks that cannot be fully predicted. Unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy.
Some countries, including the U.S., have adopted more protectionist trade policies. Slowing global economic growth, imposition of tariffs and resulting impacts on global prices and supply chains, the rise in protectionist trade policies, inflationary pressures, changes to some major international trade agreements, risks associated with trade negotiations between countries and regions, including the U.S. and certain foreign nations, political or economic dysfunction within some nations, including the U.S., and dramatic changes in commodity and currency prices could have adverse effects that cannot be foreseen at the present time. In addition, if the U.S. dollar continues to be strong, it may decrease foreign demand for U.S. assets, which could have a negative impact on certain issuers and/or industries.
Tensions, war, or open conflict between nations, such as between Russia and Ukraine, in the Middle East or in eastern Asia could affect the economies of many nations, including the United States. The duration of ongoing hostilities in the Middle East and between Russia and Ukraine, and any sanctions and related events cannot be predicted. Those events present material uncertainty and risk with respect to markets globally and the performance of the Fund and its investments or operations could be negatively impacted.  
Regulators in the  U.S. have adopted a number of changes to regulations involving the markets and issuers, some of which apply to the Fund. The full effect of various newly adopted regulations is not currently known. Certain of these changes could limit the Fund’s ability to pursue its investment strategies or make certain investments, or may make it more costly for the Fund to operate, which may impact performance.  Additionally, it is possible that recently adopted regulations could be further revised or rescinded, which creates material uncertainty on their impact to the Fund.
Economists and others have expressed increasing concern about the potential effects of global climate change on property and security values. Certain issuers, industries and regions may be adversely affected by the impacts of climate change in ways that cannot be foreseen, including on the demand for and the development of goods and services and related production costs, and the impacts of legislation, regulation and international accords related to climate change, as well as any indirect consequences of regulation or business trends driven by climate change.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Mid-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Mid-Capitalization Companies Risk
Investing in the securities of mid-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since mid-capitalization companies may have narrower commercial markets and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity, and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Multiple Sub-Advisor Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Multiple Sub-Advisor Risk
The Manager may allocate the Fund’s assets among multiple sub-advisors, each of which is responsible for investing its allocated portion of the Fund’s assets. To a significant extent, the Fund’s performance will depend on the success of the Manager in selecting and overseeing the sub-advisors and allocating the Fund’s assets to sub-advisors. The sub-advisors’ investment styles may not work together as planned, which could adversely affect the performance of the Fund. In addition, because each sub-advisor makes its trading decisions independently, the sub-advisors may purchase or sell the same security at the same time without aggregating their transactions. This may cause unnecessary brokerage and other expenses.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Other Investment Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Other Investment Companies Risk
To the extent that the Fund invests in shares of other registered investment companies, the Fund will indirectly bear the fees and expenses charged by those investment companies in addition to the Fund’s direct fees and expenses. To the extent the Fund invests in other investment companies that invest in equity securities, fixed-income securities and/or foreign securities, or that track an index, the Fund is subject to the risks associated with the underlying investments held by the investment company or the index fluctuations to which the investment company is subject. The Fund will be subject to the risks associated with investments in those companies, including but not limited to the following:
Government Money Market Funds Risk. Investments in government money market funds are subject to interest rate risk, credit risk, and market risk. Interest rate risk is the risk that rising interest rates could cause the value of such an investment to decline.   Credit risk is the risk that the issuer, guarantor or insurer of an obligation, or the  counterparty to a transaction, may fail or become less able or unwilling, to make timely payment of interest or principal or otherwise honor its obligations, or that it may default completely.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Securities Lending Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Lending Risk
To the extent the Fund lends its securities, it may be subject to the following risks: (i) the securities in which the Fund reinvests cash collateral may decrease in value, causing the Fund to incur a loss, or may not perform sufficiently to cover the Fund’s payment to the borrower of a pre-negotiated fee or “rebate” for the use of that cash collateral in connection with the loan; (ii) non-cash collateral may decline in value, resulting in the Fund becoming under-secured; (iii) delays may occur in the recovery of loaned securities from borrowers, which could result in the Fund being unable to vote proxies or settle transactions or cause the Fund to incur increased costs; and (iv) if the borrower becomes subject to insolvency or similar proceedings, the Fund could incur delays in its ability to enforce its rights in its collateral.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Securities Selection Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Selection Risk
Securities selected for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to its performance index(es), or other funds with similar investment objectives or strategies.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Value Stocks Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Value Stocks Risk
Value stocks are subject to the risk that their intrinsic or full value may never be realized by the market, that a stock judged to be undervalued may be appropriately priced, or that their prices may decline. Although value stocks tend to be inexpensive relative to their earnings, they can continue to be inexpensive for long periods of time. The Fund’s investments in value stocks seek to limit potential downside price risk over time; however, value stock prices still may decline substantially. In addition, the Fund may produce more modest gains as a trade-off for this potentially lower risk. The Fund’s investment in value stocks could cause the Fund to underperform funds that use a growth or non-value approach to investing or have a broader investment style.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Small-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Small-Capitalization Companies Risk
Investing in the securities of small-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since small-capitalization companies may have narrower commercial markets, and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 25.02% [9]
5 Years rr_AverageAnnualReturnYear05 14.53% [9]
10 Years rr_AverageAnnualReturnYear10 13.10% [9]
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Russell 1000® Value Index (Reflects no deduction for fees, expenses, or taxes) [Member]  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 14.37%
5 Years rr_AverageAnnualReturnYear05 8.68%
10 Years rr_AverageAnnualReturnYear10 8.49%
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | A Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 0.50% [10]
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.20%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.01% [11]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 672
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 878
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,101
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,740
1 Year rr_AverageAnnualReturnYear01 8.19%
5 Years rr_AverageAnnualReturnYear05 8.70%
10 Years rr_AverageAnnualReturnYear10 8.05%
Inception Date rr_AverageAnnualReturnInceptionDate May 17, 2010
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | C Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.17%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.73% [11]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 276
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 545
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 939
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,041
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 176
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 545
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 939
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,041
1 Year rr_AverageAnnualReturnYear01 12.96%
5 Years rr_AverageAnnualReturnYear05 9.18%
10 Years rr_AverageAnnualReturnYear10 7.91%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 01, 2010
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Y Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.17%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.73% [11]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 75
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 233
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 406
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 906
1 Year rr_AverageAnnualReturnYear01 15.15%
5 Years rr_AverageAnnualReturnYear05 10.27%
10 Years rr_AverageAnnualReturnYear10 8.99%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 03, 2009
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | R6 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.06%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.62% [11]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 63
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 199
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 346
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 774
1 Year rr_AverageAnnualReturnYear01 15.24%
5 Years rr_AverageAnnualReturnYear05 10.39%
10 Years rr_AverageAnnualReturnYear10 9.10%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 28, 2017
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Advisor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.31%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.12% [11]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 114
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 356
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 617
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,363
1 Year rr_AverageAnnualReturnYear01 14.67%
5 Years rr_AverageAnnualReturnYear05 9.83%
10 Years rr_AverageAnnualReturnYear10 8.55%
Inception Date rr_AverageAnnualReturnInceptionDate May 31, 2005
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | R5 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.10%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.66% [11]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 211
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 368
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 822
1 Year rr_AverageAnnualReturnYear01 15.19%
5 Years rr_AverageAnnualReturnYear05 10.35%
10 Years rr_AverageAnnualReturnYear10 9.07%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 17, 1987
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Investor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.39%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95% [11]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 97
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 303
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 525
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,166
Annual Return 2015 rr_AnnualReturn2015 (6.37%)
Annual Return 2016 rr_AnnualReturn2016 15.61%
Annual Return 2017 rr_AnnualReturn2017 16.68%
Annual Return 2018 rr_AnnualReturn2018 (12.26%)
Annual Return 2019 rr_AnnualReturn2019 29.18%
Annual Return 2020 rr_AnnualReturn2020 2.94%
Annual Return 2021 rr_AnnualReturn2021 27.54%
Annual Return 2022 rr_AnnualReturn2022 (5.56%)
Annual Return 2023 rr_AnnualReturn2023 13.07%
Annual Return 2024 rr_AnnualReturn2024 14.85%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarterly Return:20.56%4th Quarter 202001/01/2015 through 12/31/2024
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.56%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarterly Return:-30.18%1st Quarter 202001/01/2015 through 12/31/2024
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (30.18%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
1 Year rr_AverageAnnualReturnYear01 14.85%
5 Years rr_AverageAnnualReturnYear05 10.00%
10 Years rr_AverageAnnualReturnYear10 8.71%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1994
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Investor Class | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 11.30%
5 Years rr_AverageAnnualReturnYear05 7.06%
10 Years rr_AverageAnnualReturnYear10 6.12%
(American Beacon Funds) | (American Beacon Large Cap Value Fund) | Investor Class | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 11.13%
5 Years rr_AverageAnnualReturnYear05 7.41%
10 Years rr_AverageAnnualReturnYear10 6.39%
(American Beacon Funds) | (American Beacon Small Cap Value Fund)  
Prospectus: rr_ProspectusTable  
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund’s investment objective is long-term capital appreciation and current income.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis. More information about these and other discounts is available from your financial professional and in “Choosing Your Share Class” on page  67 of the Prospectus and “Additional Purchase and Sale Information for A Class Shares” on page  78  of the Statement of Additional Information (“SAI”). With respect to purchases of shares through specific intermediaries, you may find additional information regarding sales charge discounts and waivers in Appendix A to the Fund’s Prospectus entitled “Intermediary Sales Charge Discounts, Waivers and Other Information.”
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. This Example reflects your costs as though C Class shares were held for the full 10-year period. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption of shares:
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 52% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 52.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in equity securities of small market capitalization U.S. companies that the Fund considers to have value characteristics.
The Fund considers small market capitalization companies to be those with market capitalizations within the market capitalization range of the companies in the Russell 2000® Index at the time of investment. As of December 31, 2024, the Russell 2000 Index consisted of companies with market capitalizations of $6.1 million to $14.7  billion. The Fund considers a company to be a U.S. company if:
the company is incorporated in the United States;
the company’s security is primarily listed for trading in a United States market;  
the company is headquartered in the United States; or  
the company has at least half of its assets or derives at least half of its revenues in the United States.
The Fund considers a company to have value characteristics if it has one or more of the following characteristics (relative to the Russell 2000 Index):  
below-average price to earnings ratio,  
below-average price to book value ratio,  
below-average price to cash flow ratio, or  
below-average price to sales ratio.  
The Fund may also invest in mid-capitalization and micro-capitalization companies. The Fund’s investments principally include common stocks and real estate investment trusts (“REITs”). The Fund’s investments in stocks also include dividend-paying stocks.
The Manager allocates the assets of the Fund among different sub-advisors. The Manager believes that this strategy may help the Fund outperform other investment styles over the longer term while reducing volatility and downside risk. Except for Brandywine Global Investment Management, LLC (“Brandywine Global”), each of the sub-advisors determines the earnings growth prospects of companies based upon a combination of internal and external research using fundamental analysis and considering changing economic trends. The process is research driven and takes into consideration items such as a company’s tangible assets, sustainability of its cash flows, capital intensity and financial leverage.
Brandywine Global employs a primarily quantitative strategy that focuses on buying stocks deemed to be less expensive based on price to earnings ratio or price to book value ratio and that have positive price momentum.
For each sub-advisor, the decision to sell a stock is typically based on the belief that the company is no longer considered undervalued or shows deteriorating fundamentals, or that better investment opportunities exist in other stocks. The Fund may have significant exposure to the  Financials sector. However, as the sector composition of the Fund’s portfolio changes over time, the Fund’s exposure to the Financials sector may be lower at a future date, and the Fund’s exposure to other market sectors may be higher.
The Fund may invest cash balances in other investment companies, including a government money market fund advised by the Manager, with respect to which the Manager also receives a management fee. The Fund may purchase and sell equity index futures contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs.
Each sub-advisor’s investment processes incorporate the sub-advisor’s environmental, social and/or governance (“ESG”) analysis as a consideration in the assessment of potential portfolio investments for which an ESG score is available or it is feasible to calculate an ESG score. Accordingly, a small portion of the securities in the portions of the Fund managed by  Brandywine Global Investment Management, LLC, DePrince, Race & Zollo, Inc., and Newton Investment Management North America, LLC may not receive an ESG score and those sub-advisors may not consider ESG analysis. In addition, as ESG information is just one investment consideration, ESG considerations are not solely determinative in any investment decision made by a sub-advisor. Furthermore, the sub-advisors do not use ESG considerations to limit, restrict or otherwise exclude companies or sectors from the Fund’s investment universe. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks.
The Fund may seek to earn additional income by lending its securities to certain qualified broker-dealers and institutions.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Fund Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index, as well as an additional market index with characteristics that are similar to those of the Fund, for the periods indicated.
The chart and the table show the performance of the Fund’s Investor Class shares for all periods. In the table below, for the period prior to February 28, 2017, the performance of R6 Class shares reflects the returns of the R5 Class shares of the Fund. The R6 Class would have had similar annual returns to the R5 Class shares of the Fund because the shares of each class represent investments in the same portfolio securities. However, as reflected in the table in the “Fees and Expenses of the Fund” section of this Fund Summary, the expenses of the R5 Class shares differ from those of the R6 Class shares, which would affect performance.   To the extent that the R5 Class shares may have had lower expenses than the R6 Class shares prior to February 28, 2017, the performance of the R5 Class shares would likely have been higher than the performance the R6 Class shares would have realized during the same period. The performance of the R6 Class shares shown in the table has not been adjusted for differences in operating expenses between the R6 Class shares and R5 Class shares. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. In the table below, the performance for C Class shares reflects the performance as though C Class shares were held for the full 10-year period.   
You may obtain updated performance information on the Fund’s website at www.americanbeaconfunds.com. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of risk by showing changes in the Fund’s performance over time. The bar chart shows how the Fund’s performance has varied from year to year. The table shows how the Fund’s average annual total returns compare to a broad-based securities market index, as well as an additional market index with characteristics that are similar to those of the Fund, for the periods indicated.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.americanbeaconfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar year total returns for Investor Class Shares. Year Ended 12/31
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarterly Return:
33.77%4th Quarter 2020
01/01/2015 through 12/31/2024
Lowest Quarterly Return:
-38.48%1st Quarter 2020
01/01/2015 through 12/31/2024
Performance Table Heading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2024
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account (“IRA”) or a 401(k) plan, the after-tax returns do not apply to your situation. After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Risk Lose Money [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Risk Not Insured Depository Institution [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Cybersecurity and Operational Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers and third-party fund distribution platforms, including the ability of shareholders to transact in the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. It is not possible for the Fund or its service providers to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. The Fund cannot control the cybersecurity and operational plans and systems of its service providers, its counterparties or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Dividend Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Dividend Risk
An issuer of stock held by the Fund may choose not to declare a dividend or the dividend rate might not remain at current levels or increase over time. Dividend paying stocks might not experience the same level of earnings growth or capital appreciation as non-dividend paying stocks. Securities that pay dividends may be sensitive to changes in interest rates and, as interest rates rise or fall, the prices of such securities may fall.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Environmental, Social, and/or Governance Investing Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Environmental, Social, and/or Governance Investing Risk
The use of environmental, social, and/or governance (“ESG”) considerations by  a sub-advisor may cause the Fund to make different investments than funds that have a similar investment style but do not incorporate such considerations in their strategy. As with the use of any investment considerations involved in investment decisions, there is no guarantee that the use of any ESG investment considerations will result in the selection of issuers that will outperform other issuers or help reduce risk in the Fund. The Fund may underperform funds that do not incorporate these considerations or incorporate different ESG considerations. Although a  sub-advisor has established its own process to oversee ESG integration in accordance with the Fund’s strategies, successful integration of ESG factors will depend on a  sub-advisor’s skill in researching, identifying, and applying these factors, as well as on the availability of relevant
data. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks. The regulatory landscape with respect to ESG investing in the United States is evolving and any future rules or regulations may require the Fund to change its investment process with respect to the integration of ESG factors.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Equity Investments Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Equity Investments Risk
Equity securities represent ownership interests in companies and are subject to investment risk, issuer risk and market risk. In general, the values of stocks and other equity securities fluctuate, and sometimes widely fluctuate, in response to changes in a company’s financial condition as well as general market, economic and political conditions and other factors. The Fund may experience a significant or complete loss on its investment in an equity security. In addition, stock prices may be particularly sensitive to rising interest rates, which increase borrowing costs and the costs of capital.  The Fund may invest in the following equity securities, which may expose the Fund to the following additional risks:
Common Stock Risk. The value of a company’s common stock may fall as a result of factors affecting the company, companies in the same industry or sector, or the financial markets overall. Common stock generally is subordinate to preferred stock upon the liquidation or bankruptcy of the issuing company.
Real Estate Investment Trusts (“REITs”) Risk. Investments in REITs are subject to the risks associated with investing in the real estate industry, including, among other risks: adverse developments affecting the real estate industry; declines in real property values; changes in interest rates; defaults by mortgagors or other borrowers and tenants; lack of availability of mortgage funds or financing; extended vacancies of properties, especially during economic downturns; casualty or condemnation losses; regulatory limitations on rents and operating expenses; and other governmental actions, such as changes to tax laws, zoning regulations or environmental regulations. REITs also are dependent upon the skills of their managers and are subject to heavy cash flow dependency or self-liquidation. Regardless of where a REIT is organized or traded, its performance may be affected significantly by events in the region where its properties are located. REITs may not be diversified geographically or by property or tenant type. Domestic REITs could be adversely affected by failure to qualify for tax-free “pass-through” of distributed net income and net realized gains under the Internal Revenue Code of 1986, as amended (“Internal Revenue Code”), or to maintain their exemption from registration under the Investment Company Act of 1940, as amended (“Investment Company Act”). REITs typically incur fees that are separate from those incurred by the Fund. Accordingly, the Fund’s investment in REITs will result in the layering of expenses such that shareholders will indirectly bear a proportionate share of the REITs’ operating expenses, in addition to paying Fund expenses. The value of REIT common stock may decline when interest rates rise. REITs tend to be small- to mid-capitalization securities and, as such, are subject to the risks of investing in small- to mid-capitalization securities.  
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Futures Contracts Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Futures Contracts Risk
Futures contracts are derivative instruments pursuant to a contract where the parties agree to a fixed price for an agreed amount of securities or other underlying assets at an agreed date. The use of such derivative instruments may expose the Fund to additional risks, such as credit risk, liquidity risk, and counterparty risk, that it would not be subject to if it invested directly in the securities underlying those derivatives. There can be no assurance that any strategy used will succeed. There may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes. There also can be no assurance that, at all times, a liquid market will exist for offsetting a futures contract that the Fund has previously bought or sold, and this may result in the inability to close a futures contract when desired. Futures contracts may experience potentially dramatic price changes, which will increase the volatility of the Fund and may involve a small investment of cash (the amount of initial and variation margin) relative to the magnitude of the risk assumed (the potential increase or decrease in the price of the futures contract).   Use of derivatives is a highly specialized activity that can involve investment techniques and risks different from, and in some respects greater than, those associated with investing in more traditional investments. Derivatives can be highly complex and highly volatile and may perform in unanticipated ways. The Fund may invest in the following types of futures contracts:
Index Futures Contracts Risk. Futures contracts on indices expose the Fund to volatility in an underlying index.   
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Investment Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Investment Risk
An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Issuer Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Issuer Risk
The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Market Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Market Risk
The Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. Equity securities generally have greater price volatility than fixed-income securities, although under certain market conditions fixed-income securities may have comparable or greater price volatility. During a general downturn in the securities markets, multiple assets may decline in value simultaneously. Prices in many financial markets have increased significantly over the last decade, but there have also been periods of adverse market and financial developments and cyclical change during that timeframe, which have resulted in unusually high levels of volatility in domestic and foreign financial markets that has caused losses for investors and may occur again in the future. The value of a security may decline due to adverse issuer-specific conditions, general market conditions unrelated to a particular issuer, such as changes in interest or inflation rates, or factors that affect a particular industry or industries. Changes in the financial condition of a single issuer or market segment also can impact the market as a whole. Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, pandemics, public health crises, natural disasters and related events have led, and in the future may continue to lead, to instability in world economies and markets generally and reduced liquidity in equity, credit and fixed-income markets, which may disrupt economies and markets and adversely affect the value of your investment. Changes in value may be temporary or may last for extended periods.
Policy changes by the U.S. government and/or Federal Reserve and political events within the U.S. and abroad, such as changes in the U.S. presidential administration and Congress, the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat or occurrence of a federal government shutdown and threats or the occurrence of a failure to increase the federal government’s debt limit, which could result in a default on the government’s obligations, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree.
Markets and market participants are increasingly reliant upon both publicly available and proprietary information data systems. Data imprecision, software or other technology malfunctions, programming inaccuracies, unauthorized use or access, and similar circumstances may impair the performance of these systems and may have an adverse impact upon a single issuer, a group of issuers, or the market at large.
The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations.
Recent Market Events Risk. Both U.S. and international markets have experienced significant volatility in recent months and years. As a result of such volatility, investment returns may fluctuate significantly. Moreover, the risks discussed herein associated with an investment in the Fund may be increased.
Although interest rates were unusually low in the  U.S. and abroad for a period of time, in 2022, the U.S. Federal Reserve (the “Federal Reserve”) and certain foreign central banks began to raise interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Additionally, various economic and political factors could cause the Federal Reserve or foreign central banks to change their approach in the future and such actions may result in an economic slowdown in the U.S. and abroad. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility, reduce liquidity across various markets or decrease confidence in the markets. High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. There is no assurance that the U.S. Congress will act to raise the nation’s debt ceiling, a failure to do so could cause market turmoil and substantial investment risks that cannot be fully predicted. Unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy.
Some countries, including the U.S., have adopted more protectionist trade policies. Slowing global economic growth, imposition of tariffs and resulting impacts on global prices and supply chains, the rise in protectionist trade policies, inflationary pressures, changes to some major international trade agreements, risks associated with trade negotiations between countries and regions, including the U.S. and certain foreign nations, political or economic dysfunction within some nations, including the U.S., and dramatic changes in commodity and currency prices could have adverse effects that cannot be foreseen at the present time. In addition, if the U.S. dollar continues to be strong, it may decrease foreign demand for U.S. assets, which could have a negative impact on certain issuers and/or industries.
Tensions, war, or open conflict between nations, such as between Russia and Ukraine, in the Middle East or in eastern Asia could affect the economies of many nations, including the United States. The duration of ongoing hostilities in the Middle East and between Russia and Ukraine, and any sanctions and related events cannot be predicted. Those events present material uncertainty and risk with respect to markets globally and the performance of the Fund and its investments or operations could be negatively impacted.  
Regulators in the  U.S. have adopted a number of changes to regulations involving the markets and issuers, some of which apply to the Fund. The full effect of various newly adopted regulations is not currently known. Certain of these changes could limit the Fund’s ability to pursue its investment strategies or make certain investments, or may make it more costly for the Fund to operate, which may impact performance.  Additionally, it is possible that recently adopted regulations could be further revised or rescinded, which creates material uncertainty on their impact to the Fund.
Economists and others have expressed increasing concern about the potential effects of global climate change on property and security values. Certain issuers, industries and regions may be adversely affected by the impacts of climate change in ways that cannot be foreseen, including on the demand for and the development of goods and services and related production costs, and the impacts of legislation, regulation and international accords related to climate change, as well as any indirect consequences of regulation or business trends driven by climate change.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Mid-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Mid-Capitalization Companies Risk
Investing in the securities of mid-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since mid-capitalization companies may have narrower commercial markets and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity, and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Multiple Sub-Advisor Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Multiple Sub-Advisor Risk
The Manager may allocate the Fund’s assets among multiple sub-advisors, each of which is responsible for investing its allocated portion of the Fund’s assets. To a significant extent, the Fund’s performance will depend on the success of the Manager in selecting and overseeing the sub-advisors and allocating the Fund’s assets to sub-advisors. The sub-advisors’ investment styles may not work together as planned, which could adversely affect the performance of the Fund. In addition, because each sub-advisor makes its trading decisions independently, the sub-advisors may purchase or sell the same security at the same time without aggregating their transactions. This may cause unnecessary brokerage and other expenses.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Other Investment Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Other Investment Companies Risk
To the extent that the Fund invests in shares of other registered investment companies, the Fund will indirectly bear the fees and expenses charged by those investment companies in addition to the Fund’s direct fees and expenses. To the extent the Fund invests in other investment companies that invest in equity securities, fixed-income securities and/or foreign securities, or that track an index, the Fund is subject to the risks associated with the underlying investments held by the investment company or the index fluctuations to which the investment company is subject. The Fund will be subject to the risks associated with investments in those companies, including but not limited to the following:
Government Money Market Funds Risk. Investments in government money market funds are subject to interest rate risk, credit risk, and market risk. Interest rate risk is the risk that rising interest rates could cause the value of such an investment to decline.   Credit risk is the risk that the issuer, guarantor or insurer of an obligation, or the  counterparty to a transaction, may fail or become less able or unwilling, to make timely payment of interest or principal or otherwise honor its obligations, or that it may default completely.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Redemption Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Redemption Risk
The Fund may experience periods of high levels of redemptions that could cause the Fund to sell assets at inopportune times or at a loss or depressed value. Heavy redemptions could hurt the Fund’s performance. The sale of assets to meet redemption requests may create net capital gains, which could cause the Fund to have to distribute substantial capital gains. Redemption risk is greater to the extent that one or more investors or intermediaries control a large percentage of investments in the Fund. In addition, redemption risk is heightened during periods of declining or illiquid markets. During periods of heavy redemptions, the Fund may borrow funds through the interfund credit facility or from a bank line of credit, which may increase costs.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Securities Lending Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Lending Risk
To the extent the Fund lends its securities, it may be subject to the following risks: (i) the securities in which the Fund reinvests cash collateral may decrease in value, causing the Fund to incur a loss, or may not perform sufficiently to cover the Fund’s payment to the borrower of a pre-negotiated fee or “rebate” for the use of that cash collateral in connection with the loan; (ii) non-cash collateral may decline in value, resulting in the Fund becoming under-secured; (iii) delays may occur in the recovery of loaned securities from borrowers, which could result in the Fund being unable to vote proxies or settle transactions or cause the Fund to incur increased costs; and (iv) if the borrower becomes subject to insolvency or similar proceedings, the Fund could incur delays in its ability to enforce its rights in its collateral.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Securities Selection Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Securities Selection Risk
Securities selected for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to its performance index(es), or other funds with similar investment objectives or strategies.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Value Stocks Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Value Stocks Risk
Value stocks are subject to the risk that their intrinsic or full value may never be realized by the market, that a stock judged to be undervalued may be appropriately priced, or that their prices may decline. Although value stocks tend to be inexpensive relative to their earnings, they can continue to be inexpensive for long periods of time. The Fund’s investments in value stocks seek to limit potential downside price risk over time; however, value stock prices still may decline substantially. In addition, the Fund may produce more modest gains as a trade-off for this potentially lower risk. The Fund’s investment in value stocks could cause the Fund to underperform funds that use a growth or non-value approach to investing or have a broader investment style.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Small-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Small-Capitalization Companies Risk
Investing in the securities of small-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since small-capitalization companies may have narrower commercial markets, and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Micro-Capitalization Companies Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Micro-Capitalization Companies Risk
Micro-capitalization companies are subject to substantially greater risks of loss and price fluctuations, sometimes rapidly and unpredictably, because their earnings and revenues tend to be less predictable. Since micro-capitalization companies may not have an operating history, product lines, or financial resources, their share prices tend to be more volatile and their markets less liquid than companies with larger market capitalizations, and they can be sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings. The shares of micro-capitalization companies tend to trade less frequently than those of larger, more established companies, which can adversely affect the pricing of these securities and the future ability to sell these securities.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Quantitative Strategy Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Quantitative Strategy Risk
The success of the Fund’s investment strategy may depend in part on the effectiveness of a  sub-advisor’s quantitative tools for screening securities. These strategies may incorporate factors that are not predictive of a security’s value. The quantitative tools may not react as expected to market events, resulting in
losses for the Fund. Additionally, a previously successful strategy may become outdated or inaccurate, which may not be identified by a sub-advisor and therefore may also result in losses. The use of artificial intelligence or other evolving or emerging technologies presents significant risks and may exacerbate the aforementioned risks.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Sector Risk [Member]  
Prospectus: rr_ProspectusTable  
Risk [Text Block] rr_RiskTextBlock
Sector Risk
When the Fund focuses its investments in certain sectors of the economy, its performance could fluctuate more widely than if the Fund were invested more evenly across sectors. Issuers in the same economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. Additionally, individual sectors may be more volatile, and may perform differently, than the broader market. As the Fund’s portfolio changes over time, the Fund’s exposure to a particular sector may become higher or lower.
Financials Sector Risk. Companies in the Financials sector are subject to extensive governmental regulation and intervention, which may result in financial penalties and limits on the scope of their activities, the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, the scope of their activities, the prices they can charge, the amount of capital they must maintain and, potentially, their size. The impact of recent or future regulation on the Financials sector, including more stringent capital requirements, cannot be predicted. In addition, fiscal, regulatory and monetary policies, economic conditions, interest rate changes, credit rating downgrades, and decreased liquidity in the credit markets may cause an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets, thereby affecting a wide range of companies in the Financials sector. Cybersecurity incidents and technology malfunctions and failures have become increasingly frequent and have caused significant losses to companies in this sector, which also may negatively impact the Fund.
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 25.02% [12]
5 Years rr_AverageAnnualReturnYear05 14.53% [12]
10 Years rr_AverageAnnualReturnYear10 13.10% [12]
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Russell 2000® Value Index (Reflects no deduction for fees, expenses, or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 8.05%
5 Years rr_AverageAnnualReturnYear05 7.29%
10 Years rr_AverageAnnualReturnYear10 7.14%
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | A Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 0.50% [13]
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.70%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.26%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.22% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 692
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 939
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,206
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,965
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05 7.30%
10 Years rr_AverageAnnualReturnYear10 6.63%
Inception Date rr_AverageAnnualReturnInceptionDate May 17, 2010
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | C Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.70%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.96% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 299
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 615
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,056
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,283
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 199
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 615
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,056
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,283
1 Year rr_AverageAnnualReturnYear01 5.22%
5 Years rr_AverageAnnualReturnYear05 7.80%
10 Years rr_AverageAnnualReturnYear10 6.50%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 01, 2010
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Y Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.70%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.16%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.87% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 89
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 277
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 481
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,070
1 Year rr_AverageAnnualReturnYear01 7.35%
5 Years rr_AverageAnnualReturnYear05 8.96%
10 Years rr_AverageAnnualReturnYear10 7.63%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 03, 2009
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | R6 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.70%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.06%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.77% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 245
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 427
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 952
1 Year rr_AverageAnnualReturnYear01 7.50%
5 Years rr_AverageAnnualReturnYear05 9.07%
10 Years rr_AverageAnnualReturnYear10 7.73%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 28, 2017
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Advisor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.70%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.34%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.30% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 132
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 411
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 712
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,566
1 Year rr_AverageAnnualReturnYear01 6.91%
5 Years rr_AverageAnnualReturnYear05 8.51%
10 Years rr_AverageAnnualReturnYear10 7.19%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 2003
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | R5 Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.70%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.09%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 81
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 443
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 988
1 Year rr_AverageAnnualReturnYear01 7.41%
5 Years rr_AverageAnnualReturnYear05 9.04%
10 Years rr_AverageAnnualReturnYear10 7.70%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 1998
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Investor Class  
Prospectus: rr_ProspectusTable  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.70%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.44%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 365
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 632
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,395
Annual Return 2015 rr_AnnualReturn2015 (5.36%)
Annual Return 2016 rr_AnnualReturn2016 26.34%
Annual Return 2017 rr_AnnualReturn2017 8.35%
Annual Return 2018 rr_AnnualReturn2018 (15.89%)
Annual Return 2019 rr_AnnualReturn2019 23.07%
Annual Return 2020 rr_AnnualReturn2020 3.70%
Annual Return 2021 rr_AnnualReturn2021 27.72%
Annual Return 2022 rr_AnnualReturn2022 (8.06%)
Annual Return 2023 rr_AnnualReturn2023 16.29%
Annual Return 2024 rr_AnnualReturn2024 7.05%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarterly Return:33.77%4th Quarter 202001/01/2015 through 12/31/2024
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 33.77%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarterly Return:-38.48%1st Quarter 202001/01/2015 through 12/31/2024
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (38.48%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
1 Year rr_AverageAnnualReturnYear01 7.05%
5 Years rr_AverageAnnualReturnYear05 8.68%
10 Years rr_AverageAnnualReturnYear10 7.35%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 28, 1999
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Investor Class | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 4.70%
5 Years rr_AverageAnnualReturnYear05 6.41%
10 Years rr_AverageAnnualReturnYear10 5.38%
(American Beacon Funds) | (American Beacon Small Cap Value Fund) | Investor Class | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 5.37%
5 Years rr_AverageAnnualReturnYear05 6.44%
10 Years rr_AverageAnnualReturnYear10 5.44%
[1]
1 Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
[2]
2 The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
[3]
1 American Beacon Advisors, Inc. (the “Manager”) has contractually agreed to waive fees and/or reimburse expenses of the Fund’s  Y Class, R6 Class, R5 Class, and Investor Class shares through February 28, 2026  to the extent that Total Annual Fund Operating Expenses exceed 0.51% for the Y Class, 0.41% for the R6 Class, 0.45% for the R5 Class, and 0.83% for the Investor Class (excluding taxes, interest, brokerage commissions, acquired fund fees and expenses, securities lending fees, expenses associated with securities sold short, litigation, and other extraordinary expenses). The contractual expense reimbursement can be changed or terminated only in the discretion and with the approval of a majority of the Fund’s Board of Trustees. The Manager will itself waive fees and/or reimburse expenses of the Fund to maintain the contractual expense ratio caps for each applicable class of shares or make arrangements with other service providers to do so. The Manager can be reimbursed by the Fund for any contractual fee waivers or expense reimbursements if reimbursement to the Manager (a) occurs within three years from the date of the Manager’s waiver/reimbursement and (b) does not cause the Total Annual Fund Operating Expenses of a class to exceed the lesser of the contractual percentage limit in effect at the time of the waiver/reimbursement or the time of the recoupment.
[4]
* Reflects the reinvestment of dividends after the deduction of withholding taxes, using a tax rate applicable to non-resident individuals who do not benefit from double taxation treaties.
[5]
1 Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
[6]
2 During the fiscal year ended October 31, 2024, the Fund paid amounts to American Beacon Advisors, Inc. (the “Manager”) that were previously waived and/or reimbursed under a contractual fee waiver/expense reimbursement agreement for the Fund’s R6 Class shares in the amount of 0.02%.
[7]
3 The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
[8]
4 The Manager has contractually agreed to waive fees and/or reimburse expenses of the Fund’s R6 Class shares, through February 28, 2026, to the extent that Total Annual Fund Operating Expenses exceed 0.69% for the R6 Class shares (excluding taxes, interest, brokerage commissions, acquired fund fees and expenses, securities lending fees, expenses associated with securities sold short, litigation, and other extraordinary expenses). The contractual expense reimbursement can be changed or terminated only in the discretion and with the approval of a majority of the Fund’s Board of Trustees. The Manager will itself waive fees and/or reimburse expenses of the Fund to maintain the contractual expense ratio caps for each applicable class of shares or make arrangements with other service providers to do so. The Manager can be reimbursed by the Fund for any contractual fee waivers or expense reimbursements if reimbursement to the Manager (a) occurs within three years from the date of the Manager’s waiver/reimbursement and (b) does not cause the Total Annual Fund Operating Expenses of a class to exceed the lesser of the contractual percentage limit in effect at the time of the waiver/reimbursement or the time of the recoupment.
[9]
* The S&P 500® Index TR is replacing the Russell 1000® Value Index as a broad-based securities market index to comply with a new regulatory requirement.
[10]
1 Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
[11]
2 The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
[12]
* The S&P 500® Index TR is replacing the Russell 2000® Value Index as a broad-based securities market index to comply with a new regulatory requirement.
[13]
1 Currently, the Fund does not assess a front-end sales load on purchases of A Class shares of $1,000,000 or more. However, the Fund assesses a contingent deferred sales charge (‘‘CDSC’’) of 0.50% on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
[14]
2 The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets provided in the Fund’s Financial Highlights table, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.