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Investment Objective

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The Fund’s investment objective is income and capital appreciation.

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Fees and Expenses of the Fund

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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 66 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 and Waivers and Other Information.” Although the Fund does not impose any sales charge on Y Class shares, you may pay a commission to your broker on your purchases and sales of those shares, which is not reflected in the tables or Example below.

Expense Breakpoint, Minimum Investment Required [Amount]

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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.

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$ 50,000

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Shareholder Fees (fees paid directly from your investment)

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Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

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A contingent deferred sales charge (‘‘CDSC’’) of 0.50% will be charged 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.

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Example

Expense Example, No Redemption, By Year, Caption [Text]

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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. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

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Assuming no redemption of shares:

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Portfolio Turnover

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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 82% of the average value of its portfolio.

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82.00%

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Principal Investment Strategies

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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 Fund’s equity investments may include common stocks, convertible securities, real estate investment trusts (“REITs”), American Depositary Receipts (“ADRs”) and U.S. dollar-denominated foreign stocks traded on U.S. exchanges (collectively referred to as “stocks”). The Fund may invest in companies of all market capitalizations. 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 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.

The Fund’s debt securities may include: 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); U.S. and U.S. dollar-denominated foreign corporate debt securities, such as notes and bonds, mortgage-backed securities; asset-backed securities; and variable and floating rate securities.

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. 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.

In determining which debt securities to buy and sell, the Manager and the sub-advisors generally use 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.

The Fund may invest cash balances in other investment companies, including money market funds, and may purchase and sell 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 on a short-term or long-term basis.

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Principal Risks

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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. The Fund is not designed for investors who need an assured level of current income and is intended to be a long-term investment. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund listed below are presented in alphabetical order and not in order of importance or potential exposure. Among other matters, this presentation is intended to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.

Allocation Risk
The Manager’s and a sub-advisor’s judgments about, and allocations among, strategies, asset classes and market exposures may adversely affect the Fund’s performance. There can be no assurance, particularly during periods of market disruption and stress, that the Manager’s and a sub-advisor’s judgments about asset allocation will be correct.

Asset-Backed and Mortgage-Related Securities Risk
Investments in asset-backed and mortgage-related securities are influenced by the factors affecting the assets underlying the securities or the housing market. Investments in asset-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, and liquidity risk. A decline in the credit quality of the issuers of asset-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 assets or 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. Additionally, certain mortgage-related securities may include securities backed by pools of loans made to “subprime” borrowers or borrowers with blemished credit histories; the risk of defaults is generally higher in the case of mortgage pools that include such subprime mortgages.

Asset Selection Risk
Assets selected by a sub-advisor or the Manager for the Fund may not perform to expectations. The investment models used to manage the Fund may rely in part on data derived from third parties and may not perform as intended. This could result in the Fund’s underperformance compared to other funds with similar investment objectives.

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.

Credit Risk
The Fund is subject to the risk that the issuer or guarantor of a debt security, or the counterparty to a derivatives contract, may fail, or become less able, 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.

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 and its service providers as well as the ability of shareholders to transact with the Fund. 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. 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. Most issuers in which the Fund invests are heavily dependent on computers for data storage and operations, and require ready access to the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of securities in which the Fund invests, leading to significant loss of value.

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.

Equity Investments Risk
Equity securities are subject to investment risk and market risk. The Fund may invest in the following equity securities, which may expose the Fund to the following additional risks:

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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.

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Convertible Securities Risk. Convertible securities are subject to the risk that the credit standing of the issuer may have an effect on the convertible securities’ investment value. Convertible securities are also sensitive to movements in interest rates. Generally, 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.

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Depositary Receipts and U.S. Dollar-Denominated Foreign Stocks Traded on U.S. Exchanges Risk. Depositary receipts and U.S. dollar-denominated foreign stocks traded on U.S. exchanges 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 or foreign stock, less liquidity, more volatility, less government regulation and supervision and delays in transaction settlement.

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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; and 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. 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.

Foreign Investing Risk
Non-U.S. investments carry potential risks not associated with U.S. investments. Such risks 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 and financial reporting standards, (5) greater volatility, (6) different government regulation and supervision of foreign stock exchanges, brokers and listed companies, and (7) delays in transaction settlement in some foreign 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. Global economic and financial markets are becoming increasingly interconnected and conditions (including recent volatility and 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.

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). Equity index futures contracts expose the

Fund to volatility in an underlying securities index. 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.

Interest Rate Risk
Generally, the value of investments with interest rate risk, such as fixed income securities or derivatives, will move in the opposite direction to movements in interest rates. The prices of fixed income securities or derivatives are also affected by their durations. Fixed income securities or derivatives with longer durations generally have greater sensitivity to changes in interest rates. 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. An increase in interest rates can impact markets broadly as well. As of the date of this Prospectus, interest rates are historically low. Extremely low or negative interest rates may become more prevalent among U.S. and foreign issuers. To the extent the Fund holds an investment with a negative interest rate to maturity, the Fund may generate a negative return on that investment. Conversely, in the future, interest rates may rise, perhaps significantly and/or rapidly, potentially resulting in substantial losses to the Fund.

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.

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.

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. Many larger-capitalization companies also may be unable to attain the high growth rates of successful smaller companies, especially during periods of economic expansion.

LIBOR Risk
Certain of the instruments identified in the Fund’s principal investment strategies have variable or floating coupon rates that are based on the ICE LIBOR (“LIBOR”), Euro Interbank Offered Rate and other similar types of reference rates (each, a “Reference Rate”). These Reference Rates are generally intended to represent the rate at which contributing banks may obtain short-term borrowings from each other within certain financial markets. Arrangements are underway to phase out the use of LIBOR. These arrangements and any additional regulatory or market changes may have an adverse impact on the Fund or its investments, including increased volatility or illiquidity in markets for instruments that rely on LIBOR. There remains uncertainty regarding the nature of any replacement rate and the impact of the transition from LIBOR on the Fund and the financial markets generally. The transition process, or the failure of an industry to transition, could lead to increased volatility and illiquidity in markets for instruments that currently rely on LIBOR to determine interest rates and a reduction in the values of some LIBOR-based investments, all of which would impact the Fund. At this time, it is not possible to completely identify or predict the effect of any transition, establishment of alternative Reference Rates or other reforms to Reference Rates that may be enacted in the UK or elsewhere. In addition, any substitute Reference Rate and any pricing adjustments imposed by a regulator or by counterparties or otherwise may adversely affect the Fund’s performance and/or NAV.

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. 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 due to 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.

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, 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, including changes in the U.S. presidential administration and Congress, 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.

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period of time and may result in a sustained economic downturn or recession. The U.S. Federal Reserve and the U.S. federal government have taken numerous measures to address the economic impact of the COVID-19 pandemic and stimulate the U.S. economy. The ultimate effects of these and other efforts that may be taken may not be known for some time.

The Federal Reserve has spent hundreds of billions of dollars to keep credit flowing through short-term money markets and has signaled that it plans to maintain its interventions at an elevated level. Amid these ongoing efforts, concerns about the markets’ dependence on the Federal Reserve’s provision of liquidity have grown. The U.S. government has reduced the federal corporate income tax rate, and future legislative, regulatory and policy changes may result in more restrictions on international trade, less stringent prudential regulation of certain players in the financial markets, and significant new investments in infrastructure and national defense. High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. A rise in protectionist trade policies, slowing global economic growth, risks associated with the United Kingdom’s departure from the European Union on December 31, 2020, commonly referred to as “Brexit,” and a trade agreement between the United Kingdom and the European Union, the risks associated with ongoing trade negotiations with China, the possibility of changes to some international trade agreements, tensions or open conflict between nations, or political or economic dysfunction within some nations that are major producers of oil could affect the economies of many nations, including the United States, in ways that cannot necessarily be foreseen at the present time.

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, 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.

Mid-Capitalization Companies Risk
Investing in the securities of mid-capitalization companies involves greater risk and the possibility of greater price volatility 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 expected changes in interest rates, borrowing costs and earnings.

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, it is possible that 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.

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:

■	Money Market Funds. Investments in money market funds are subject to interest rate risk, credit risk, and market risk.

Prepayment and Extension Risk
Prepayment risk is the risk that the principal amount of a bond may be repaid prior to the bond’s maturity date. Due to a decline in interest rates or excess cash flow, a debt security may be called or otherwise prepaid before maturity. If this occurs, no additional interest will be paid on the investment. The Fund may have to invest 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. Variable and floating rate securities may be less sensitive to prepayment risk. 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 and delayed payment, heighten interest rate risk and increase the potential for a decline in its price. In addition, as a consequence of a decrease in prepayments, the amount of principal available to the Fund for investment would be reduced.

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. 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 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. A rise in interest rates or other market developments may cause investors to move out of fixed income securities on a large scale. Heavy redemptions could hurt the Fund’s performance.

Sector Risk
When the Fund focuses its investments in certain sectors of the economy, its performance may be driven largely by sector performance and could fluctuate more widely than if the Fund were invested more evenly across sectors. 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.

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Financials Sector Risk. Financial services companies are subject to extensive governmental regulation, which may limit both 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 and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds and can fluctuate significantly when interest rates change or due to increased competition. In addition, deterioration of the credit markets generally may cause an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Certain events in the Financials sector may cause an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations.

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.

Securities Selection Risk
Securities selected by a sub-advisor or the Manager for the Fund may not perform to expectations. It may not be possible to predict or to hedge against a widening in the yield of the securities selected by a sub-advisor. This could result in the Fund’s underperformance compared to its benchmark index(es), or other funds with similar investment objectives or strategies.

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.

Small-Capitalization Companies Risk
Investing in the securities of small-capitalization companies involves greater risk and the possibility of greater price volatility 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 interest rates, borrowing costs and earnings.

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 interest and principal when held to maturity. The market prices for such securities are not guaranteed and will fluctuate. 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’’), Federal Farm Credit Bank (“FFCB”), and the Tennessee Valley Authority, 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 entities 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.

U.S. Treasury Obligations Risk
The value of U.S. Treasury obligations may vary due to changes in interest rates. In addition, changes to the financial condition or credit rating of the U.S. government may cause the value of the Fund’s investments in obligations issued by the U.S. Treasury to decline. Certain political events in the U.S., such as a prolonged government shut down, may also cause investors to lose confidence in the U.S. government and may cause the value of U.S. Treasury obligations to decline.

Value Stocks Risk
Value stocks are subject to the risk that their intrinsic value may never be realized by the market or that their prices may decline. 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.

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 interest rate is based. The coupon on a floating rate security is generally based on an interest rate, such as a money-market index, LIBOR 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.

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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.

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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.

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Fund Performance

Performance Information Illustrates Variability of Returns [Text]

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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 composite index and the two broad-based securities market indices that comprise the composite index, for the periods indicated.

The chart and the table show the performance of the Fund’s Investor Class shares for all periods.

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.

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rr_PerformanceAvailabilityWebSiteAddress

www.americanbeaconfunds.com

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Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

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Calendar year total returns for Investor Class Shares. Year Ended 12/31

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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 One Class of after Tax Shown [Text]

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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.

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.

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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.

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Highest Quarterly Return:
15.36% 4th Quarter 2020
01/01/2011 through 12/31/2020

Lowest Quarterly Return:
-19.59% 1st Quarter 2020
01/01/2011 through 12/31/2020

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Average annual total returns for periods ended December 31, 2020

(American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

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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.

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Investment Objective

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The Fund’s investment objective is high current income consistent with preservation of capital.

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Fees and Expenses of the Fund

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Shareholder Fees (fees paid directly from your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

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Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

February 28, 2022

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Example

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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, 2022. Although your actual costs may be higher or lower, based on these assumptions, whether you redeem or hold your shares, your costs would be:

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Portfolio Turnover

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122.00%

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Principal Investment Strategies

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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- 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, 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 securities. These types of obligations may have fixed-rate or floating-rate coupons (or variable rate coupons) 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- or better by at least two of the three rating agencies. The sub-advisor then eliminates foreign companies, Yankee Bonds and alcohol, tobacco, gambling, and defense companies and evaluates the remaining issues based on the sustainability of their operations and their consideration for environmental, social, and governance (“ESG”) principles as an integrated part of the sub-advisor’s evaluation and investment process.

Under normal circumstances, the Fund seeks to maintain a weighted-average duration of zero to seven years. Duration is an indicator of a bond’s price sensitivity to a change in interest rates. For example, a duration of seven years means that a security’s price would be expected to decrease by approximately 7% 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 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.

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Principal Risks

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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. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund listed below are presented in alphabetical order and not in order of importance or potential exposure. Among other matters, this presentation is intended to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.

Credit Risk
The Fund is subject to the risk that the issuer or guarantor of a debt security may fail, or become less able, 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.

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.

Interest Rate Risk
Generally, the value of investments with interest rate risk, such as fixed income securities, will move in the opposite direction to movements in 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. For example, if a bond has a duration of seven years, a 1% increase in interest rates could be expected to result in a 7% decrease in the value of the bond. An increase in interest rates can impact markets broadly as well. As of the date of this Prospectus, interest rates are historically low. Extremely low or negative interest rates may become more prevalent among U.S. and foreign issuers. To the extent the Fund holds an investment with a negative interest rate to maturity, the Fund may generate a negative return on that investment. Conversely, in the future, interest rates may rise, perhaps significantly and/or rapidly, potentially resulting in substantial losses to the Fund.

underway to phase out the use of LIBOR. These arrangements and any additional regulatory or market changes may have an adverse impact on the Fund or its investments, including increased volatility or illiquidity in markets for instruments that rely on LIBOR. There remains uncertainty regarding the nature of any replacement rate and the impact of the transition from LIBOR on the Fund and the financial markets generally. The transition process, or the failure of an industry to transition, could lead to increased volatility and illiquidity in markets for instruments that currently rely on LIBOR to determine interest rates and a reduction in the values of some LIBOR-based investments, all of which would impact the Fund. At this time, it is not possible to completely identify or predict the effect of any transition, establishment of alternative Reference Rates or other reforms to Reference Rates that may be enacted in the UK or elsewhere. In addition, any substitute Reference Rate and any pricing adjustments imposed by a regulator or by counterparties or otherwise may adversely affect the Fund’s performance and/or NAV.

■

Recent Market Events. An outbreak of infectious respiratory illness caused by a novel coronavirus, known as COVID-19, was first detected in December 2019 and has subsequently spread globally. The transmission of COVID-19 and efforts to contain its spread have resulted, and may continue to result, in significant disruptions to business operations, widespread business closures and layoffs, travel restrictions and closed borders, prolonged quarantines and stay-at-home orders, disruption of and delays in healthcare service preparation and delivery, service and event changes, and lower consumer demand, as well as general concern and uncertainty that has negatively affected the global economy. The impact of the COVID-19 pandemic may last for an extended period of time and may result in a sustained economic downturn or recession. The U.S. Federal Reserve and the U.S. federal government have taken numerous measures to address the economic impact of the COVID-19 pandemic and stimulate the U.S. economy. The ultimate effects of these and other efforts that may be taken may not be known for some time.

The Federal Reserve has spent hundreds of billions of dollars to keep credit flowing through short-term money markets and has signaled that it plans to maintain its interventions at an elevated level. Amid these ongoing efforts, concerns about the markets’ dependence on the Federal Reserve’s provision of liquidity have grown. The U.S. government has reduced the federal corporate income tax rate, and future legislative, regulatory and policy changes may result in more restrictions on international trade, less stringent prudential regulation of certain players in the financial markets, and significant new investments in infrastructure and national defense. High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. A rise in protectionist trade policies, slowing global economic growth, risks associated with the United Kingdom’s departure from the European Union on December 31, 2020, commonly referred to as “Brexit,” and a trade agreement between the United Kingdom and the European Union, the risks associated with ongoing trade negotiations with China, the possibility of changes to some international trade agreements, tensions or open conflict between nations, or political or economic dysfunction within some nations that are major producers of oil could affect the economies of many nations, including the United States, in ways that cannot necessarily be foreseen at the present time.

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, 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.

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. 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 risk, extension risk, callable securities risk, and valuation 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.

may have to invest 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. Variable and floating rate securities may be less sensitive to prepayment risk. 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 and delayed payment, heighten interest rate risk and increase the potential for a decline in its price. In addition, as a consequence of a decrease in prepayments, the amount of principal available to the Fund for investment would be reduced.

■

Securities Selection Risk
Securities selected by the sub-advisor for the Fund may not perform to expectations. It may not be possible to predict or to hedge against a widening in the yield of the securities selected by the sub-advisor. This could result in the Fund’s underperformance compared to its benchmark index(es), or other funds with similar investment objectives or strategies.

Socially Responsible Investing Risk
The Fund’s incorporation of environmental, social and/or governance considerations in its investment strategy may cause it to make different investments than funds that have a similar investment style but do not incorporate such considerations in their strategy. The Fund may underperform funds that do not incorporate these considerations. The Fund may not be able to take advantage of certain investment opportunities due to these considerations, which may adversely affect investment performance.

rr_RiskLoseMoney

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.

rr_RiskNotInsuredDepositoryInstitution

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.

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Fund Performance

Performance Information Illustrates Variability of Returns [Text]

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 market index, which is the Fund’s benchmark index, for the periods indicated.

In the table below, the performance of the R6 Class shares for periods prior to February 28, 2019 represents the performance 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, the R5 Class shares of the Fund had different expenses than the R6 Class shares, which would affect performance. The R6 Class performance shown in the table has not been adjusted for differences in operating expenses between the R6 Class and R5 Class shares.

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 market index, which is the Fund’s benchmark index, for the periods indicated.

rr_PerformanceAvailabilityWebSiteAddress

www.americanbeaconfunds.com

rr_PerformancePastDoesNotIndicateFuture

Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

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Calendar year total returns for Investor Class Shares. Year Ended 12/31

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 One Class of after Tax Shown [Text]

rr_PerformanceTableNotRelevantToTaxDeferred

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After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.

rr_PerformanceTableExplanationAfterTaxHigher

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Highest Quarterly Return:
4.53% 2nd Quarter 2020
01/01/2017 through 12/31/2020

Lowest Quarterly Return:
-1.32% 1st Quarter 2020
01/01/2017 through 12/31/2020

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Average annual total returns for periods ended December 31, 2020

(American Beacon Fnds) | (American Beacon International Equity Fund℠)

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Investment Objective

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The Fund’s investment objective is long-term capital appreciation.

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Fees and Expenses of the Fund

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Expense Breakpoint, Minimum Investment Required [Amount]

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rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

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Shareholder Fees (fees paid directly from your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

February 28, 2022

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Example

Expense Example, No Redemption, By Year, Caption [Text]

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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, 2022. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming no redemption of shares:

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Portfolio Turnover

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rr_PortfolioTurnoverRate

77.00%

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Principal Investment Strategies

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Under normal circumstances, at least 80% of the Fund’s net assets (plus the amount of any borrowings for investment purposes) are invested 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’s investment in equity securities may include depositary receipts and U.S. dollar-denominated foreign stocks traded on U.S. exchanges. The Fund will primarily invest in countries comprising 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 invest in companies of all market capitalizations and in certain emerging market countries. The Fund may use futures contracts and foreign currency forward contracts, including non-deliverable forward contracts (“NDFs”), as a hedge against foreign currency fluctuations.

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. A sub-advisor may trade forward foreign currency contracts, including NDFs, or currency futures in an attempt to reduce the Fund’s risk exposure to adverse fluctuations in currency exchange rates. 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. 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.

The Fund may invest cash balances in other investment companies, including money market funds, and may purchase and sell futures contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs. The Fund may lend its securities to broker-dealers and other institutions to earn additional income.

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Principal Risks

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Counterparty Risk
The Fund is subject to the risk that a party or participant to a transaction, such as a broker or 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.

Currency Risk
The Fund may have exposure to foreign currencies by using various instruments described below. 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 in non-U.S. currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, non-U.S. currencies. The Fund may gain exposure to foreign currencies because of its investments in one or more of the following:

■	Non-U.S. currencies

■	Securities denominated in non-U.S. currencies

■	Foreign currency forward contracts, including non-deliverable forwards (“NDFs”)

■	Non-U.S. currency futures contracts

Emerging Markets Risk
When investing in emerging markets, the risks of investing in foreign securities are heightened. Emerging markets are generally smaller, less developed, less liquid and more volatile than the securities markets of the U.S. and other developed markets. There are also risks of: greater political or economic uncertainties; an economy’s dependence on revenues from particular commodities or on international aid or development assistance; currency transfer restrictions; a limited number of potential buyers for such securities resulting in increased volatility and limited liquidity for emerging market securities; trading suspensions and other restrictions on investment; delays and disruptions in securities settlement procedures, and significant limitations on investor rights and recourse. The governments of emerging market countries may also be more unstable and more likely to impose capital controls, nationalize a company or industry, place restrictions on foreign ownership and on withdrawing sale proceeds of securities from the country, intervene in the financial markets, and/or impose burdensome taxes that could adversely affect security prices. In addition, there may be less publicly available information about issuers in emerging markets than would be available about issuers in more developed capital markets, and such issuers may not be subject to accounting, auditing, financial reporting and recordkeeping standards and requirements comparable to those to which U.S. companies are subject.

■

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. The use of foreign currency forward contracts may expose the Fund to additional risks, such as credit 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. 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. Forward currency transactions, including NDFs, and forward currency contracts include the risks associated with fluctuations in currency, and other risks inherent in trading derivatives.

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, 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.

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.

■

Market Timing Risk
The Fund is subject to the risk of market timing activities by investors due to the Fund’s investments in foreign securities, or its exposure to foreign securities through the derivatives it holds. If the Fund trades foreign securities, it generally prices these foreign securities using their closing prices from the foreign markets in which they trade, which typically is prior to the Fund’s calculation of its net asset value (“NAV”). These prices may be affected by events that occur after the close of a foreign market but before the Fund prices its shares. As a result, the Fund in certain instances may fair value foreign securities. However, 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 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 portfolio managers’ ability to execute efficient investment strategies. While the Manager monitors trading in the Fund, there is no guarantee that it can detect all market timing activities.

■	Money Market Funds. Investments in money market funds are subject to interest rate risk, credit risk, and market risk.

■

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.

Securities Selection Risk
Securities selected by a sub-advisor or the Manager for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to its benchmark index(es), or other funds with similar investment objectives or strategies.

Valuation Risk
The Fund may value certain assets 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 Fund’s ability to value its 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.

rr_RiskLoseMoney

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.

rr_RiskNotInsuredDepositoryInstitution

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.

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Fund Performance

Performance Information Illustrates Variability of Returns [Text]

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 market index, which is the Fund’s benchmark index, as well as an additional broad-based market index, for the periods indicated.

The chart and the table show the performance of the Fund’s Investor Class shares for all periods. The Fund began offering R6 Class shares on February 28, 2017. In the table below, the performance of the R6 Class shares prior to February 28, 2017 represents the performance 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, the R5 Class shares of the Fund had different expenses than the R6 Class shares, which would affect performance. The R6 Class performance shown in the table has not been adjusted for differences in operating expenses between the R6 Class shares and the R5 Class shares.

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 market index, which is the Fund’s benchmark index, as well as an additional broad-based market index, for the periods indicated.

rr_PerformanceAvailabilityWebSiteAddress

www.americanbeaconfunds.com

rr_PerformancePastDoesNotIndicateFuture

Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

rr_BarChartHeading

Calendar year total returns for Investor Class Shares. Year Ended 12/31

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 One Class of after Tax Shown [Text]

rr_PerformanceTableNotRelevantToTaxDeferred

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.

rr_PerformanceTableExplanationAfterTaxHigher

rr_BarChartClosingTextBlock

Highest Quarterly Return:
20.63% 4th Quarter 2020
01/01/2011 through 12/31/2020

Lowest Quarterly Return:
-29.98% 1st Quarter 2020
01/01/2011 through 12/31/2020

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Average annual total returns for periods ended December 31, 2020

(American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

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rr_ProspectusTable

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Investment Objective

rr_ObjectivePrimaryTextBlock

The Fund’s investment objective is long-term capital appreciation and current income.

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Fees and Expenses of the Fund

rr_ExpenseNarrativeTextBlock

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointDiscounts

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

February 28, 2022

rr_ExpensesDeferredChargesTextBlock

rr_ExpenseExampleHeading

Example

Expense Example, No Redemption, By Year, Caption [Text]

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, 2022. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming no redemption of shares:

rr_PortfolioTurnoverHeading

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

rr_PortfolioTurnoverRate

67.00%

rr_StrategyHeading

Principal Investment Strategies

rr_StrategyNarrativeTextBlock

Under normal circumstances, at least 80% of the Fund’s net assets (plus the amount of any borrowings for investment purposes) are invested in equity securities of large market capitalization U.S. companies. These companies have 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, 2020, the Russell 1000 Index consisted of companies with market capitalization of $832.2 million and greater. The Fund may invest in companies of all market capitalizations.

The Fund’s investments in equity securities may include common stocks, convertible securities, preferred stocks, master limited partnerships (“MLPs”), real estate investment trusts (“REITs”), American Depositary Receipts (“ADRs”) and U.S. dollar-denominated foreign stocks traded on U.S. exchanges (collectively referred to as “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. 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 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. 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.

rr_RiskHeading

Principal Risks

rr_RiskNarrativeTextBlock

■

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.

■

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’s 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”).

■

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, 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, including changes in the U.S. presidential administration and Congress, 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.

■

■	Money Market Funds. Investments in money market funds are subject to interest rate risk, credit risk, and market risk.

■

and cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations.

rr_RiskLoseMoney

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.

rr_RiskNotInsuredDepositoryInstitution

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.

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Information Illustrates Variability of Returns [Text]

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 market index, which is the Fund’s benchmark index, for the periods indicated.

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 market index, which is the Fund’s benchmark index, for the periods indicated.

rr_PerformanceAvailabilityWebSiteAddress

www.americanbeaconfunds.com

rr_PerformancePastDoesNotIndicateFuture

Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

rr_BarChartHeading

Calendar year total returns for Investor Class Shares. Year Ended 12/31

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 One Class of after Tax Shown [Text]

rr_PerformanceTableNotRelevantToTaxDeferred

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.

rr_PerformanceTableExplanationAfterTaxHigher

rr_BarChartClosingTextBlock

Highest Quarterly Return:
20.56% 4th Quarter 2020
01/01/2011 through 12/31/2020

Lowest Quarterly Return:
-30.18% 1st Quarter 2020
01/01/2011 through 12/31/2020

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2020

(American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_PerformanceTableClosingTextBlock

rr_ProspectusTable

rr_ObjectiveHeading

Investment Objective

rr_ObjectivePrimaryTextBlock

The Fund’s investment objective is long-term capital appreciation and current income.

rr_ExpenseHeading

Fees and Expenses of the Fund

rr_ExpenseNarrativeTextBlock

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointDiscounts

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

February 28, 2022

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesDeferredChargesTextBlock

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.

rr_ExpenseExampleHeading

Example

Expense Example, No Redemption, By Year, Caption [Text]

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, 2022. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming no redemption of shares:

rr_PortfolioTurnoverHeading

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

rr_PortfolioTurnoverRate

35.00%

rr_StrategyHeading

Principal Investment Strategies

rr_StrategyNarrativeTextBlock

Under normal circumstances, at least 80% of the Fund’s net assets (plus the amount of any borrowings for investment purposes) are invested in equity securities of middle market capitalization U.S. companies. These companies have market capitalizations within the market capitalization range of the companies in the Russell Midcap^® Index at the time of investment. As of December 31, 2020, the market capitalizations of the companies in the Russell Midcap Index ranged from $831.2 million to $58.5 billion. The Fund’s investments may include common stocks, real estate investment trusts (“REITs”), American Depositary Receipts (“ADRs”), master limited partnerships (“MLPs”), and U.S. dollar-denominated foreign stocks traded on U.S. exchanges (collectively referred to as “stocks”).

In general, the sub-advisors select stocks that, in their opinion, have most or all of the following characteristics (relative to the Russell Midcap Index):

■	above-average earnings growth potential,

■	below-average price to earnings ratio, and

■	below-average price to book value ratio.

Barrow, Hanley, Mewhinney & Strauss, LLC (“Barrow”), one of the Fund’s sub-advisors, invests in medium-sized companies with low price to earnings and price to book value ratios and high dividend yields in relation to the Russell Midcap Index. Through extensive research and meetings with company management teams, Barrow seeks to identify companies that not only possess these three characteristics, but that also exhibit high or improving profitability translating into earnings growth above that of the overall Russell Midcap Index. Barrow’s portfolio will generally consist of 40 to 50 stocks.

Pzena Investment Management, LLC (“Pzena”), another one of the Fund’s sub-advisors, invests in medium-sized companies and intends to maintain a concentrated portfolio of 30 to 40 stocks selected from the most undervalued or “deep” value portion of its investment universe. Pzena looks for companies within that universe that sell for a low price relative to normal earnings (with “normal earnings” defined as a 5-year estimate of what the company should earn in a normal environment based on research of the company’s history and the history of its industry).

WEDGE Capital Management, L.L.P. (“WEDGE”), another one of the Fund’s sub-advisors, is primarily focused on identifying unrecognized value among high quality, market-leading companies, with a defendable competitive advantage, and market capitalization within the broad mid-cap market segment captured by the mid-cap Russell and S&P indices. Focusing on companies that meet initial value and financial quality parameters, research analysts employ comprehensive, qualitative and quantitative analysis, seeking stocks with unrecognized value. Areas of emphasis include independent earnings forecasts and financial statement analysis, an evaluation of free cash flow generation and return on invested capital, absolute and relative valuations, industry analysis and competitive positioning, and management capabilities and incentives.

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 decision to sell a security 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 lend its securities to broker-dealers and other institutions to earn additional income.

rr_RiskHeading

Principal Risks

rr_RiskNarrativeTextBlock

■

■	Money Market Funds. Investments in money market funds are subject to interest rate risk, credit risk, and market risk.

■

rr_RiskLoseMoney

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.

rr_RiskNotInsuredDepositoryInstitution

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.

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Information Illustrates Variability of Returns [Text]

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 market index, which is the Fund’s benchmark index, for the periods indicated.

The chart and the table show the performance of the Fund’s Investor Class shares for all periods. The Fund began offering R6 Class shares on February 28, 2018. In the table below, the performance of the R6 Class shares prior to February 28, 2018 represents the performance 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, the R5 Class shares of the Fund had different expenses than the R6 Class shares, which would affect performance. The R6 Class performance shown in the table has not been adjusted for differences in operating expenses between the R5 Class shares and the R6 Class shares.

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 market index, which is the Fund’s benchmark index, for the periods indicated.

rr_PerformanceAvailabilityWebSiteAddress

www.americanbeaconfunds.com

rr_PerformancePastDoesNotIndicateFuture

Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

rr_BarChartHeading

Calendar year total returns for Investor Class Shares. Year Ended 12/31

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 One Class of after Tax Shown [Text]

rr_PerformanceTableNotRelevantToTaxDeferred

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.

rr_PerformanceTableExplanationAfterTaxHigher

rr_BarChartClosingTextBlock

Highest Quarterly Return:
29.08% 4th Quarter 2020
01/01/2011 through 12/31/2020

Lowest Quarterly Return:
-39.99% 1st Quarter 2020
01/01/2011 through 12/31/2020

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2020

(American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_PerformanceTableClosingTextBlock

rr_ProspectusTable

rr_ObjectiveHeading

Investment Objective

rr_ObjectivePrimaryTextBlock

The Fund’s investment objective is long-term capital appreciation and current income.

rr_ExpenseHeading

Fees and Expenses of the Fund

rr_ExpenseNarrativeTextBlock

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointDiscounts

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesDeferredChargesTextBlock

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

rr_ExpenseExampleHeading

Example

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNarrativeTextBlock

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming no redemption of shares:

rr_PortfolioTurnoverHeading

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

rr_PortfolioTurnoverRate

61.00%

rr_StrategyHeading

Principal Investment Strategies

rr_StrategyNarrativeTextBlock

Under normal circumstances, at least 80% of the Fund’s net assets (plus the amount of any borrowings for investment purposes) are invested in equity securities of small market capitalization U.S. companies. These companies have market capitalizations of $5 billion or less at the time of investment. The Fund’s investments may include common stocks, preferred stocks, real estate investment trusts (“REITs”), American Depositary Receipts (“ADRs”), master limited partnerships (“MLPs”), and U.S. dollar-denominated foreign stocks traded on U.S. exchanges (collectively, “stocks”).

The Manager allocates the assets of the Fund among six 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 the Russell 2000^® Index):

■	above-average earnings growth potential,

■	below-average price to earnings ratio,

■	below-average price to book value ratio

■	below-average price to revenue ratios, and

■	above average free cash flow yields and return on capital.

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. 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.

Barrow, Hanley, Mewhinney & Strauss, LLC (“Barrow”), one of the Fund’s sub-advisors, manages two allocations of the Fund’s assets, one pursuant to the fundamental research strategy discussed above and the other pursuant to a quantitative application of its fundamental research process (“Quantitative Strategy”). Barrow implements the Quantitative Strategy by using a quantitative multi-factor model that identifies the factors present in Barrow’s fundamental research portfolio, which may include, for example, below-average price-to-revenue ratios, price-to-earnings ratios and price-to-book ratios and above-average free cash flow yields and return on capital. The model applies these factors and factor weightings to the Russell 2000 Index universe of companies and makes recommendations for adjustments to the portfolio on a daily basis.

Hotchkis and Wiley Capital Management, LLC (“Hotchkis”), another sub-advisor to the Fund, also manages two allocations of the Fund’s assets, one pursuant to the fundamental research strategy discussed above and the other pursuant to a small cap diversified value strategy which seeks to exploit market inefficiencies created by irrational investor behavior (“Small Cap Diversified Value Strategy”). Hotchkis implements the Small Cap Diversified Value Strategy by using a disciplined, bottom-up investment process based on a proprietary model that is augmented by fundamental research. Hotchkis seeks broad diversified exposure to investment opportunities that are allocated to the Small Cap Diversified Value Strategy. Hotchkis evaluates relative valuation, fundamental operating trends, deterioration of fundamentals, and the Small Cap Diversified Value Strategy’s diversification guidelines, among other factors, in determining whether to sell a security.

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 lend its securities to broker-dealers and other institutions to earn additional income.

rr_RiskHeading

Principal Risks

rr_RiskNarrativeTextBlock

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. The Fund is not designed for investors who need an assured level of income and is intended to be a long-term investment. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund listed below are presented in alphabetical order and not in order of importance or potential exposure. Among other matters, this presentation is intended to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.

■

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.

■

■	Money Market Funds. Investments in money market funds are subject to interest rate risk, credit risk, and market risk.

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.

■

rr_RiskLoseMoney

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.

rr_RiskNotInsuredDepositoryInstitution

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.

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Information Illustrates Variability of Returns [Text]

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 market index, which is the Fund’s benchmark index, for the periods indicated.

The chart and the table show the performance of the Fund’s Investor Class shares for all periods. The Fund began offering R6 Class shares on February 28, 2017. In the table below, the performance of R6 Class shares prior to February 28, 2017 represents the performance 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, the R5 Class shares of the Fund had different expenses than the R6 Class shares, which would affect performance. The R6 Class performance shown in the table has not been adjusted for differences in operating expenses between the R5 Class shares and the R6 Class shares.

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 market index, which is the Fund’s benchmark index, for the periods indicated.

rr_PerformanceAvailabilityWebSiteAddress

www.americanbeaconfunds.com

rr_PerformancePastDoesNotIndicateFuture

Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

rr_BarChartHeading

Calendar year total returns for Investor Class Shares. Year Ended 12/31

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 One Class of after Tax Shown [Text]

rr_PerformanceTableNotRelevantToTaxDeferred

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.

rr_PerformanceTableExplanationAfterTaxHigher

rr_BarChartClosingTextBlock

Highest Quarterly Return:
33.77% 4th Quarter 2020
01/01/2011 through 12/31/2020

Lowest Quarterly Return:
-38.48% 1st Quarter 2020
01/01/2011 through 12/31/2020

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2020

Balanced Composite Index (60% Russell 1000 Value Index/40% Bloomberg Barclays US Aggregate Bond Index) (Reflects no deduction for fees, expenses or taxes) | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_PerformanceTableClosingTextBlock

rr_ProspectusTable

rr_AverageAnnualReturnYear01

2.80%

rr_AverageAnnualReturnYear05

9.74%

Bloomberg Barclays U.S. Aggregate Bond Index (Reflects no deduction for fees, expenses or taxes) | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnYear10

10.50%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

5.62%

rr_AverageAnnualReturnYear05

7.96%

Bloomberg Barclays U.S. Aggregate Bond Index (Reflects no deduction for fees, expenses or taxes) | (American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

rr_AverageAnnualReturnYear10

8.08%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

7.51%

Russell 1000 Value Index (Reflects no deduction for fees, expenses or taxes) | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnSinceInception

4.01%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

7.51%

rr_AverageAnnualReturnYear05

4.44%

Russell 1000 Value Index (Reflects no deduction for fees, expenses or taxes) | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnYear10

3.84%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

2.80%

rr_AverageAnnualReturnYear05

9.74%

MSCI EAFE Index (Net) (Reflects no deduction for fees, expenses, or taxes, other than withholding taxes, as noted) | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnYear10

10.50%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

7.82%

^[1]

rr_AverageAnnualReturnYear05

7.45%

^[1]

MSCI EAFE Value Index (Net) (Reflects no deduction for fees, expenses, or taxes, other than withholding taxes, as noted) | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnYear10

5.51%

^[1]

rr_ProspectusTable

rr_AverageAnnualReturnYear01

(2.63%)

^[1]

rr_AverageAnnualReturnYear05

4.20%

^[1]

Russell Midcap Value Index (Reflects no deduction for fees, expenses or taxes) | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnYear10

3.37%

^[1]

rr_ProspectusTable

rr_AverageAnnualReturnYear01

4.96%

rr_AverageAnnualReturnYear05

9.73%

Russell 2000 Value Index (Reflects no deduction for fees, expenses or taxes) | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnYear10

10.49%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

4.63%

rr_AverageAnnualReturnYear05

9.65%

A Class | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnYear10

8.66%

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.75%

rr_MaximumDeferredSalesChargeOverOther

0.50%

^[2]

rr_ManagementFeesOverAssets

0.52%

^[3]

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.25%

^[4]

rr_ExpensesOverAssets

1.02%

^[5]

rr_ExpenseExampleYear01

$ 673

rr_ExpenseExampleYear03

881

rr_ExpenseExampleYear05

1,106

rr_ExpenseExampleYear10

$ 1,751

rr_AverageAnnualReturnYear01

(0.08%)

rr_AverageAnnualReturnYear05

7.08%

rr_AverageAnnualReturnYear10

7.32%

A Class | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

May 17, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.75%

rr_MaximumDeferredSalesChargeOverOther

0.50%

^[6]

rr_ManagementFeesOverAssets

0.61%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.27%

rr_ExpensesOverAssets

1.13%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[7]

rr_NetExpensesOverAssets

1.13%

rr_ExpenseExampleYear01

$ 684

rr_ExpenseExampleYear03

913

rr_ExpenseExampleYear05

1,161

rr_ExpenseExampleYear10

$ 1,871

rr_AverageAnnualReturnYear01

(5.17%)

rr_AverageAnnualReturnYear05

3.14%

rr_AverageAnnualReturnYear10

3.38%

A Class | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

May 17, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.75%

rr_MaximumDeferredSalesChargeOverOther

0.50%

^[8]

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.20%

rr_ExpensesOverAssets

1.00%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[9]

rr_NetExpensesOverAssets

1.00%

^[10]

rr_ExpenseExampleYear01

$ 671

rr_ExpenseExampleYear03

875

rr_ExpenseExampleYear05

1,096

rr_ExpenseExampleYear10

$ 1,729

rr_AverageAnnualReturnYear01

(3.00%)

rr_AverageAnnualReturnYear05

8.17%

rr_AverageAnnualReturnYear10

8.95%

A Class | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

May 17, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.75%

rr_MaximumDeferredSalesChargeOverOther

0.50%

^[11]

rr_ManagementFeesOverAssets

0.83%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.22%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[12]

rr_ExpensesOverAssets

1.31%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[13]

rr_NetExpensesOverAssets

1.27%

^[14]

rr_ExpenseExampleYear01

$ 697

rr_ExpenseExampleYear03

963

rr_ExpenseExampleYear05

1,248

rr_ExpenseExampleYear10

$ 2,060

rr_AverageAnnualReturnYear01

(3.69%)

rr_AverageAnnualReturnYear05

5.94%

rr_AverageAnnualReturnYear10

8.27%

A Class | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

May 17, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.75%

rr_MaximumDeferredSalesChargeOverOther

0.50%

^[15]

rr_ManagementFeesOverAssets

0.73%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.28%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[16]

rr_ExpensesOverAssets

1.27%

rr_ExpenseExampleYear01

$ 697

rr_ExpenseExampleYear03

955

rr_ExpenseExampleYear05

1,232

rr_ExpenseExampleYear10

$ 2,021

rr_AverageAnnualReturnYear01

(2.37%)

rr_AverageAnnualReturnYear05

6.64%

rr_AverageAnnualReturnYear10

7.67%

C Class | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnInceptionDate

May 17, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

1.00%

rr_ManagementFeesOverAssets

0.52%

^[3]

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_OtherExpensesOverAssets

0.24%

^[4]

rr_ExpensesOverAssets

1.76%

^[5]

rr_ExpenseExampleYear01

$ 279

rr_ExpenseExampleYear03

554

rr_ExpenseExampleYear05

954

rr_ExpenseExampleYear10

2,073

rr_ExpenseExampleNoRedemptionYear01

179

rr_ExpenseExampleNoRedemptionYear03

554

rr_ExpenseExampleNoRedemptionYear05

954

rr_ExpenseExampleNoRedemptionYear10

$ 2,073

rr_AverageAnnualReturnYear01

4.30%

rr_AverageAnnualReturnYear05

7.56%

rr_AverageAnnualReturnYear10

7.16%

C Class | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

Sep. 01, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

1.00%

rr_ManagementFeesOverAssets

0.61%

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_OtherExpensesOverAssets

0.25%

rr_ExpensesOverAssets

1.86%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[7]

rr_NetExpensesOverAssets

1.86%

rr_ExpenseExampleYear01

$ 289

rr_ExpenseExampleYear03

585

rr_ExpenseExampleYear05

1,006

rr_ExpenseExampleYear10

2,180

rr_ExpenseExampleNoRedemptionYear01

189

rr_ExpenseExampleNoRedemptionYear03

585

rr_ExpenseExampleNoRedemptionYear05

1,006

rr_ExpenseExampleNoRedemptionYear10

$ 2,180

rr_AverageAnnualReturnYear01

(1.09%)

rr_AverageAnnualReturnYear05

3.61%

rr_AverageAnnualReturnYear10

3.23%

C Class | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Sep. 01, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

1.00%

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_OtherExpensesOverAssets

0.13%

rr_ExpensesOverAssets

1.68%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[9]

rr_NetExpensesOverAssets

1.68%

^[10]

rr_ExpenseExampleYear01

$ 271

rr_ExpenseExampleYear03

530

rr_ExpenseExampleYear05

913

rr_ExpenseExampleYear10

1,987

rr_ExpenseExampleNoRedemptionYear01

171

rr_ExpenseExampleNoRedemptionYear03

530

rr_ExpenseExampleNoRedemptionYear05

913

rr_ExpenseExampleNoRedemptionYear10

$ 1,987

rr_AverageAnnualReturnYear01

1.19%

rr_AverageAnnualReturnYear05

8.71%

rr_AverageAnnualReturnYear10

8.80%

C Class | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Sep. 01, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

1.00%

rr_ManagementFeesOverAssets

0.83%

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_OtherExpensesOverAssets

0.22%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[12]

rr_ExpensesOverAssets

2.06%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[13]

rr_NetExpensesOverAssets

2.02%

^[14]

rr_ExpenseExampleYear01

$ 305

rr_ExpenseExampleYear03

642

rr_ExpenseExampleYear05

1,105

rr_ExpenseExampleYear10

2,387

rr_ExpenseExampleNoRedemptionYear01

205

rr_ExpenseExampleNoRedemptionYear03

642

rr_ExpenseExampleNoRedemptionYear05

1,105

rr_ExpenseExampleNoRedemptionYear10

$ 2,387

rr_AverageAnnualReturnYear01

0.53%

rr_AverageAnnualReturnYear05

6.45%

rr_AverageAnnualReturnYear10

8.12%

C Class | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Sep. 01, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

1.00%

rr_ManagementFeesOverAssets

0.73%

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_OtherExpensesOverAssets

0.23%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[16]

rr_ExpensesOverAssets

1.97%

rr_ExpenseExampleYear01

$ 300

rr_ExpenseExampleYear03

618

rr_ExpenseExampleYear05

1,062

rr_ExpenseExampleYear10

2,296

rr_ExpenseExampleNoRedemptionYear01

200

rr_ExpenseExampleNoRedemptionYear03

618

rr_ExpenseExampleNoRedemptionYear05

1,062

rr_ExpenseExampleNoRedemptionYear10

$ 2,296

rr_AverageAnnualReturnYear01

1.85%

rr_AverageAnnualReturnYear05

7.16%

rr_AverageAnnualReturnYear10

7.52%

Y Class | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnInceptionDate

Sep. 01, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.52%

^[3]

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.25%

^[4]

rr_ExpensesOverAssets

0.77%

^[5]

rr_ExpenseExampleYear01

$ 79

rr_ExpenseExampleYear03

246

rr_ExpenseExampleYear05

428

rr_ExpenseExampleYear10

$ 954

rr_AverageAnnualReturnYear01

6.31%

rr_AverageAnnualReturnYear05

8.66%

rr_AverageAnnualReturnYear10

8.31%

Y Class | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

Mar. 01, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.61%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.19%

rr_ExpensesOverAssets

0.80%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[7]

rr_NetExpensesOverAssets

0.80%

rr_ExpenseExampleYear01

$ 82

rr_ExpenseExampleYear03

255

rr_ExpenseExampleYear05

444

rr_ExpenseExampleYear10

$ 990

rr_AverageAnnualReturnYear01

1.05%

rr_AverageAnnualReturnYear05

4.72%

rr_AverageAnnualReturnYear10

4.36%

Y Class | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Aug. 03, 2009

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.15%

rr_ExpensesOverAssets

0.70%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[9]

rr_NetExpensesOverAssets

0.70%

^[10]

rr_ExpenseExampleYear01

$ 72

rr_ExpenseExampleYear03

224

rr_ExpenseExampleYear05

390

rr_ExpenseExampleYear10

$ 871

rr_AverageAnnualReturnYear01

3.19%

rr_AverageAnnualReturnYear05

9.78%

rr_AverageAnnualReturnYear10

9.97%

Y Class | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Aug. 03, 2009

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.83%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.20%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[12]

rr_ExpensesOverAssets

1.04%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[13]

rr_NetExpensesOverAssets

1.00%

^[14]

rr_ExpenseExampleYear01

$ 102

rr_ExpenseExampleYear03

327

rr_ExpenseExampleYear05

570

rr_ExpenseExampleYear10

$ 1,267

rr_AverageAnnualReturnYear01

2.50%

rr_AverageAnnualReturnYear05

7.54%

rr_AverageAnnualReturnYear10

9.30%

Y Class | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Mar. 01, 2010

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.73%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.16%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[16]

rr_ExpensesOverAssets

0.90%

rr_ExpenseExampleYear01

$ 92

rr_ExpenseExampleYear03

287

rr_ExpenseExampleYear05

498

rr_ExpenseExampleYear10

$ 1,108

rr_AverageAnnualReturnYear01

3.96%

rr_AverageAnnualReturnYear05

8.26%

rr_AverageAnnualReturnYear10

8.71%

Y Class | (American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

rr_AverageAnnualReturnInceptionDate

Aug. 03, 2009

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.19%

rr_ExpensesOverAssets

0.74%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.23%)

^[17]

rr_NetExpensesOverAssets

0.51%

^[18]

rr_ExpenseExampleYear01

$ 52

rr_ExpenseExampleYear03

213

rr_ExpenseExampleYear05

389

rr_ExpenseExampleYear10

$ 897

rr_AverageAnnualReturnYear01

4.59%

rr_AverageAnnualReturnSinceInception

2.39%

R6 Class | (American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

rr_AverageAnnualReturnInceptionDate

Apr. 04, 2016

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.09%

rr_ExpensesOverAssets

0.64%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.23%)

^[17]

rr_NetExpensesOverAssets

0.41%

^[18]

rr_ExpenseExampleYear01

$ 42

rr_ExpenseExampleYear03

182

rr_ExpenseExampleYear05

334

rr_ExpenseExampleYear10

$ 777

rr_AverageAnnualReturnYear01

4.84%

rr_AverageAnnualReturnSinceInception

2.51%

R6 Class | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

Feb. 28, 2019

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.61%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.11%

rr_ExpensesOverAssets

0.72%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[7]

rr_NetExpensesOverAssets

0.69%

rr_ExpenseExampleYear01

$ 70

rr_ExpenseExampleYear03

227

rr_ExpenseExampleYear05

398

rr_ExpenseExampleYear10

$ 892

rr_AverageAnnualReturnYear01

1.14%

rr_AverageAnnualReturnYear05

4.85%

rr_AverageAnnualReturnYear10

4.48%

R6 Class | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Feb. 28, 2017

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.07%

rr_ExpensesOverAssets

0.62%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.02%)

^[9]

rr_NetExpensesOverAssets

0.60%

^[10]

rr_ExpenseExampleYear01

$ 61

rr_ExpenseExampleYear03

197

rr_ExpenseExampleYear05

344

rr_ExpenseExampleYear10

$ 772

rr_AverageAnnualReturnYear01

3.38%

rr_AverageAnnualReturnYear05

9.89%

rr_AverageAnnualReturnYear10

10.08%

R6 Class | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Feb. 28, 2017

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.83%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.13%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[12]

rr_ExpensesOverAssets

0.97%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[13]

rr_NetExpensesOverAssets

0.91%

^[14]

rr_ExpenseExampleYear01

$ 93

rr_ExpenseExampleYear03

303

rr_ExpenseExampleYear05

530

rr_ExpenseExampleYear10

$ 1,184

rr_AverageAnnualReturnYear01

2.80%

rr_AverageAnnualReturnYear05

7.66%

rr_AverageAnnualReturnYear10

9.41%

R6 Class | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Feb. 28, 2018

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.73%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.06%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[16]

rr_ExpensesOverAssets

0.80%

rr_ExpenseExampleYear01

$ 82

rr_ExpenseExampleYear03

255

rr_ExpenseExampleYear05

444

rr_ExpenseExampleYear10

$ 990

rr_AverageAnnualReturnYear01

4.03%

rr_AverageAnnualReturnYear05

8.36%

rr_AverageAnnualReturnYear10

8.81%

Advisor Class | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

Feb. 28, 2017

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.61%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.34%

rr_ExpensesOverAssets

1.20%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[7]

rr_NetExpensesOverAssets

1.20%

rr_ExpenseExampleYear01

$ 122

rr_ExpenseExampleYear03

381

rr_ExpenseExampleYear05

660

rr_ExpenseExampleYear10

$ 1,455

rr_AverageAnnualReturnYear01

0.59%

rr_AverageAnnualReturnYear05

4.31%

rr_AverageAnnualReturnYear10

3.94%

Advisor Class | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

May 01, 2003

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.30%

rr_ExpensesOverAssets

1.10%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[9]

rr_NetExpensesOverAssets

1.10%

^[10]

rr_ExpenseExampleYear01

$ 112

rr_ExpenseExampleYear03

350

rr_ExpenseExampleYear05

606

rr_ExpenseExampleYear10

$ 1,340

rr_AverageAnnualReturnYear01

2.83%

rr_AverageAnnualReturnYear05

9.34%

rr_AverageAnnualReturnYear10

9.54%

Advisor Class | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

May 31, 2005

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.83%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.45%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[12]

rr_ExpensesOverAssets

1.54%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[13]

rr_NetExpensesOverAssets

1.50%

^[14]

rr_ExpenseExampleYear01

$ 153

rr_ExpenseExampleYear03

483

rr_ExpenseExampleYear05

836

rr_ExpenseExampleYear10

$ 1,831

rr_AverageAnnualReturnYear01

2.04%

rr_AverageAnnualReturnYear05

7.04%

rr_AverageAnnualReturnYear10

8.81%

Advisor Class | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Jun. 29, 2007

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.73%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.27%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[16]

rr_ExpensesOverAssets

1.26%

rr_ExpenseExampleYear01

$ 128

rr_ExpenseExampleYear03

400

rr_ExpenseExampleYear05

692

rr_ExpenseExampleYear10

$ 1,523

rr_AverageAnnualReturnYear01

3.53%

rr_AverageAnnualReturnYear05

7.83%

rr_AverageAnnualReturnYear10

8.27%

Advisor Class | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnInceptionDate

May 01, 2003

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.52%

^[3]

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.40%

^[4]

rr_ExpensesOverAssets

1.17%

^[5]

rr_ExpenseExampleYear01

$ 119

rr_ExpenseExampleYear03

372

rr_ExpenseExampleYear05

644

rr_ExpenseExampleYear10

$ 1,420

rr_AverageAnnualReturnYear01

5.84%

rr_AverageAnnualReturnYear05

8.18%

rr_AverageAnnualReturnYear10

7.85%

R5 Class | (American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

rr_AverageAnnualReturnInceptionDate

May 31, 2005

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.13%

rr_ExpensesOverAssets

0.68%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.23%)

^[17]

rr_NetExpensesOverAssets

0.45%

^[18]

rr_ExpenseExampleYear01

$ 46

rr_ExpenseExampleYear03

194

rr_ExpenseExampleYear05

356

rr_ExpenseExampleYear10

$ 825

rr_AverageAnnualReturnYear01

4.70%

rr_AverageAnnualReturnSinceInception

2.50%

R5 Class | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnInceptionDate

Apr. 04, 2016

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.52%

^[3]

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.17%

^[4]

rr_ExpensesOverAssets

0.69%

^[5]

rr_ExpenseExampleYear01

$ 70

rr_ExpenseExampleYear03

221

rr_ExpenseExampleYear05

384

rr_ExpenseExampleYear10

$ 859

rr_AverageAnnualReturnYear01

6.37%

rr_AverageAnnualReturnYear05

8.70%

rr_AverageAnnualReturnYear10

8.38%

R5 Class | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

Jul. 17, 1987

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.61%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.11%

rr_ExpensesOverAssets

0.72%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[7]

rr_NetExpensesOverAssets

0.72%

rr_ExpenseExampleYear01

$ 74

rr_ExpenseExampleYear03

230

rr_ExpenseExampleYear05

401

rr_ExpenseExampleYear10

$ 894

rr_AverageAnnualReturnYear01

1.06%

rr_AverageAnnualReturnYear05

4.79%

rr_AverageAnnualReturnYear10

4.45%

R5 Class | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Aug. 07, 1991

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.08%

rr_ExpensesOverAssets

0.63%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[9]

rr_NetExpensesOverAssets

0.63%

^[10]

rr_ExpenseExampleYear01

$ 64

rr_ExpenseExampleYear03

202

rr_ExpenseExampleYear05

351

rr_ExpenseExampleYear10

$ 786

rr_AverageAnnualReturnYear01

3.26%

rr_AverageAnnualReturnYear05

9.86%

rr_AverageAnnualReturnYear10

10.06%

R5 Class | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Jul. 17, 1987

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.83%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.12%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[12]

rr_ExpensesOverAssets

0.96%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[13]

rr_NetExpensesOverAssets

0.92%

^[14]

rr_ExpenseExampleYear01

$ 94

rr_ExpenseExampleYear03

302

rr_ExpenseExampleYear05

527

rr_ExpenseExampleYear10

$ 1,174

rr_AverageAnnualReturnYear01

2.58%

rr_AverageAnnualReturnYear05

7.61%

rr_AverageAnnualReturnYear10

9.38%

R5 Class | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Nov. 30, 2005

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.73%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.09%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[16]

rr_ExpensesOverAssets

0.83%

rr_ExpenseExampleYear01

$ 85

rr_ExpenseExampleYear03

265

rr_ExpenseExampleYear05

460

rr_ExpenseExampleYear10

$ 1,025

rr_AverageAnnualReturnYear01

4.05%

rr_AverageAnnualReturnYear05

8.35%

rr_AverageAnnualReturnYear10

8.81%

Investor Class | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

Dec. 31, 1998

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.61%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.46%

rr_ExpensesOverAssets

1.07%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[7]

rr_NetExpensesOverAssets

1.07%

rr_ExpenseExampleYear01

$ 109

rr_ExpenseExampleYear03

340

rr_ExpenseExampleYear05

590

rr_ExpenseExampleYear10

$ 1,306

rr_AnnualReturn2011

(11.90%)

rr_AnnualReturn2012

21.16%

rr_AnnualReturn2013

24.06%

rr_AnnualReturn2014

(7.37%)

rr_AnnualReturn2015

(2.05%)

rr_AnnualReturn2016

(0.10%)

rr_AnnualReturn2017

24.39%

rr_AnnualReturn2018

(16.64%)

rr_AnnualReturn2019

19.00%

rr_AnnualReturn2020

0.73%

rr_HighestQuarterlyReturnLabel

Highest Quarterly Return:20.63% 4th Quarter 202001/01/2011 through 12/31/2020

rr_BarChartHighestQuarterlyReturn

20.63%

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2020

rr_LowestQuarterlyReturnLabel

Lowest Quarterly Return:-29.98% 1st Quarter 202001/01/2011 through 12/31/2020

rr_BarChartLowestQuarterlyReturn

(29.98%)

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

rr_AverageAnnualReturnYear01

0.73%

rr_AverageAnnualReturnYear05

4.43%

rr_AverageAnnualReturnYear10

4.08%

Investor Class | Returns After Taxes on Distributions | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnInceptionDate

Aug. 01, 1994

rr_ProspectusTable

rr_AverageAnnualReturnYear01

0.66%

rr_AverageAnnualReturnYear05

3.81%

Investor Class | Returns After Taxes on Distributions and Sales of Fund Shares | (American Beacon Fnds) | (American Beacon International Equity Fund℠)

rr_AverageAnnualReturnYear10

3.64%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

0.85%

rr_AverageAnnualReturnYear05

3.61%

Investor Class | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnYear10

3.40%

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.41%

rr_ExpensesOverAssets

0.96%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

^[9]

rr_NetExpensesOverAssets

0.96%

^[10]

rr_ExpenseExampleYear01

$ 98

rr_ExpenseExampleYear03

306

rr_ExpenseExampleYear05

531

rr_ExpenseExampleYear10

$ 1,178

rr_AnnualReturn2011

(2.72%)

rr_AnnualReturn2012

18.68%

rr_AnnualReturn2013

34.45%

rr_AnnualReturn2014

10.19%

rr_AnnualReturn2015

(6.37%)

rr_AnnualReturn2016

15.61%

rr_AnnualReturn2017

16.68%

rr_AnnualReturn2018

(12.26%)

rr_AnnualReturn2019

29.18%

rr_AnnualReturn2020

2.94%

rr_HighestQuarterlyReturnLabel

Highest Quarterly Return:20.56% 4th Quarter 202001/01/2011 through 12/31/2020

rr_BarChartHighestQuarterlyReturn

20.56%

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2020

rr_LowestQuarterlyReturnLabel

Lowest Quarterly Return:-30.18% 1st Quarter 202001/01/2011 through 12/31/2020

rr_BarChartLowestQuarterlyReturn

(30.18%)

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

rr_AverageAnnualReturnYear01

2.94%

rr_AverageAnnualReturnYear05

9.50%

rr_AverageAnnualReturnYear10

9.69%

Investor Class | Returns After Taxes on Distributions | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Aug. 01, 1994

rr_ProspectusTable

rr_AverageAnnualReturnYear01

(0.48%)

rr_AverageAnnualReturnYear05

7.04%

Investor Class | Returns After Taxes on Distributions and Sales of Fund Shares | (American Beacon Fnds) | (American Beacon Large Cap Value Fund℠)

rr_AverageAnnualReturnYear10

7.84%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

4.08%

rr_AverageAnnualReturnYear05

7.25%

Investor Class | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnYear10

7.68%

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.83%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.38%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[12]

rr_ExpensesOverAssets

1.22%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[13]

rr_NetExpensesOverAssets

1.18%

^[14]

rr_ExpenseExampleYear01

$ 120

rr_ExpenseExampleYear03

383

rr_ExpenseExampleYear05

666

rr_ExpenseExampleYear10

$ 1,474

rr_AnnualReturn2011

0.78%

rr_AnnualReturn2012

15.71%

rr_AnnualReturn2013

39.65%

rr_AnnualReturn2014

8.25%

rr_AnnualReturn2015

(4.13%)

rr_AnnualReturn2016

17.37%

rr_AnnualReturn2017

17.49%

rr_AnnualReturn2018

(19.97%)

rr_AnnualReturn2019

26.25%

rr_AnnualReturn2020

2.36%

rr_HighestQuarterlyReturnLabel

Highest Quarterly Return:29.08% 4th Quarter 202001/01/2011 through 12/31/2020

rr_BarChartHighestQuarterlyReturn

29.08%

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2020

rr_LowestQuarterlyReturnLabel

Lowest Quarterly Return:-39.99% 1st Quarter 202001/01/2011 through 12/31/2020

rr_BarChartLowestQuarterlyReturn

(39.99%)

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

rr_AverageAnnualReturnYear01

2.36%

rr_AverageAnnualReturnYear05

7.36%

rr_AverageAnnualReturnYear10

9.20%

Investor Class | Returns After Taxes on Distributions | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Feb. 28, 2006

rr_ProspectusTable

rr_AverageAnnualReturnYear01

2.12%

rr_AverageAnnualReturnYear05

6.67%

Investor Class | Returns After Taxes on Distributions and Sales of Fund Shares | (American Beacon Fnds) | (American Beacon Mid-Cap Value Fund℠)

rr_AverageAnnualReturnYear10

8.34%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

1.57%

rr_AverageAnnualReturnYear05

5.71%

Investor Class | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnYear10

7.41%

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.73%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.42%

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

^[16]

rr_ExpensesOverAssets

1.16%

rr_ExpenseExampleYear01

$ 118

rr_ExpenseExampleYear03

368

rr_ExpenseExampleYear05

638

rr_ExpenseExampleYear10

$ 1,409

rr_AnnualReturn2011

(4.41%)

rr_AnnualReturn2012

16.08%

rr_AnnualReturn2013

39.63%

rr_AnnualReturn2014

4.33%

rr_AnnualReturn2015

(5.36%)

rr_AnnualReturn2016

26.34%

rr_AnnualReturn2017

8.35%

rr_AnnualReturn2018

(15.89%)

rr_AnnualReturn2019

23.07%

rr_AnnualReturn2020

3.70%

rr_HighestQuarterlyReturnLabel

Highest Quarterly Return:33.77% 4th Quarter 202001/01/2011 through 12/31/2020

rr_BarChartHighestQuarterlyReturn

33.77%

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2020

rr_LowestQuarterlyReturnLabel

Lowest Quarterly Return:-38.48% 1st Quarter 202001/01/2011 through 12/31/2020

rr_BarChartLowestQuarterlyReturn

(38.48%)

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

rr_AverageAnnualReturnYear01

3.70%

rr_AverageAnnualReturnYear05

8.00%

rr_AverageAnnualReturnYear10

8.44%

Investor Class | Returns After Taxes on Distributions | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnInceptionDate

Feb. 28, 1999

rr_ProspectusTable

rr_AverageAnnualReturnYear01

3.54%

rr_AverageAnnualReturnYear05

6.54%

Investor Class | Returns After Taxes on Distributions and Sales of Fund Shares | (American Beacon Fnds) | (American Beacon Small Cap Value Fund℠)

rr_AverageAnnualReturnYear10

6.97%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

2.30%

rr_AverageAnnualReturnYear05

6.08%

Investor Class | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnYear10

6.61%

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.52%

^[3]

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.49%

^[4]

rr_ExpensesOverAssets

1.01%

^[5]

rr_ExpenseExampleYear01

$ 103

rr_ExpenseExampleYear03

322

rr_ExpenseExampleYear05

558

rr_ExpenseExampleYear10

$ 1,236

rr_AnnualReturn2011

1.45%

rr_AnnualReturn2012

13.79%

rr_AnnualReturn2013

20.56%

rr_AnnualReturn2014

8.93%

rr_AnnualReturn2015

(4.41%)

rr_AnnualReturn2016

12.01%

rr_AnnualReturn2017

12.21%

rr_AnnualReturn2018

(8.19%)

rr_AnnualReturn2019

22.09%

rr_AnnualReturn2020

6.12%

rr_HighestQuarterlyReturnLabel

Highest Quarterly Return:15.36% 4th Quarter 202001/01/2011 through 12/31/2020

rr_BarChartHighestQuarterlyReturn

15.36%

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2020

rr_LowestQuarterlyReturnLabel

Lowest Quarterly Return:-19.59% 1st Quarter 202001/01/2011 through 12/31/2020

rr_BarChartLowestQuarterlyReturn

(19.59%)

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

rr_AverageAnnualReturnYear01

6.12%

rr_AverageAnnualReturnYear05

8.38%

rr_AverageAnnualReturnYear10

8.04%

Investor Class | Returns After Taxes on Distributions | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnInceptionDate

Aug. 01, 1994

rr_ProspectusTable

rr_AverageAnnualReturnYear01

2.57%

rr_AverageAnnualReturnYear05

5.96%

Investor Class | Returns After Taxes on Distributions and Sales of Fund Shares | (American Beacon Fnds) | (American Beacon Balanced Fund℠)

rr_AverageAnnualReturnYear10

6.08%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

5.86%

rr_AverageAnnualReturnYear05

6.19%

Investor Class | (American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

rr_AverageAnnualReturnYear10

6.09%

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_ProspectusTable

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.55%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.65%

rr_ExpensesOverAssets

1.20%

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.37%)

^[17]

rr_NetExpensesOverAssets

0.83%

^[18]

rr_ExpenseExampleYear01

$ 85

rr_ExpenseExampleYear03

344

rr_ExpenseExampleYear05

624

rr_ExpenseExampleYear10

$ 1,422

rr_AnnualReturn2017

2.95%

rr_AnnualReturn2018

0.50%

rr_AnnualReturn2019

4.02%

rr_AnnualReturn2020

4.31%

rr_HighestQuarterlyReturnLabel

Highest Quarterly Return:4.53% 2nd Quarter 202001/01/2017 through 12/31/2020

rr_BarChartHighestQuarterlyReturn

4.53%

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2020

rr_LowestQuarterlyReturnLabel

Lowest Quarterly Return:-1.32% 1st Quarter 202001/01/2017 through 12/31/2020

rr_BarChartLowestQuarterlyReturn

(1.32%)

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

rr_AverageAnnualReturnYear01

4.31%

rr_AverageAnnualReturnSinceInception

2.11%

Investor Class | Returns After Taxes on Distributions | (American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

rr_AverageAnnualReturnInceptionDate

Apr. 04, 2016

rr_ProspectusTable

rr_AverageAnnualReturnYear01

3.22%

Investor Class | Returns After Taxes on Distributions and Sales of Fund Shares | (American Beacon Fnds) | (American Beacon Garcia Hamilton Quality Bond Fund℠)

rr_AverageAnnualReturnSinceInception

1.40%

rr_ProspectusTable

rr_AverageAnnualReturnYear01

2.77%