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Schwab Monthly Income Fund - Income Payout  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Schwab® Monthly Income Fund — Income Payout (formerly Schwab® Monthly Income Fund — Maximum Payout)
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The fund seeks to provide current income and,
Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock as a secondary investment objective, capital appreciation.
Expense [Heading] rr_ExpenseHeading Fund Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses 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 table and Example below.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover 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 the 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 68% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 68.00%
Acquired Fund Fees and Expenses, Based on Estimates [Text] rr_AcquiredFundFeesAndExpensesBasedOnEstimates AFFE are based on estimated amounts for the current fiscal period.
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The information in the table has been restated to reflect current fees and expenses.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees AFFE reflect fees and expenses incurred indirectly by the fund through its investments in the underlying funds. The total annual fund operating expenses in the fee table may differ from the expense ratios in the fund’s “Financial Highlights” that include only the fund’s direct operating expenses and not AFFE. ​
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This example is intended to help you compare the cost of investing in the fund with the cost of investing in other 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 time periods. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. The figures are based on total annual fund operating expenses (including AFFE) after any expense reduction. Your actual costs may be higher or lower.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Expenses on a $10,000 Investment
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
The fund seeks to achieve its investment objective by investing primarily in a combination of Schwab Funds® and Schwab® ETFs (the underlying funds) in accordance with its target asset allocation. The investment adviser will allocate assets among the underlying funds, which will include equity funds, fixed income funds, and money market funds and exchange-traded funds (ETFs).
The fund intends to invest in a combination of underlying funds; however, the fund may invest directly in equity and fixed income securities as well as other unaffiliated mutual funds or ETFs, and cash and cash equivalents (including money market funds).
The fund intends to allocate investments among various asset classes such as equity, fixed income and cash and cash equivalents (including money market funds). The fund has its own distinct asset allocation strategy that is designed to accommodate the fund’s annual payout percentage while taking into account the fund’s specific risk tolerances and desired level of capital appreciation. The fund’s target asset allocation is not fixed, and the fund has the flexibility to move within the following asset allocation ranges (under normal market conditions) at the discretion of the investment adviser: 10%-50% equity; 50%-90% fixed income; and 0%-12% cash and cash equivalents (including money market funds). Market appreciation or depreciation may cause the fund to be temporarily outside these ranges.
The fund is designed to offer shareholders an annual payout based on underlying fund yields and the market environment. The fund’s anticipated annual payout is expected to be 0-3% during a low interest rate environment, 3-5% during a normal interest rate environment, and 5+% during a high interest rate environment. However, the fund’s actual annual payout could be higher or lower based on the interest rate environment and other market factors occurring during that year. The fund intends to make twelve monthly distributions to shareholders on or about the 15th calendar day of each month. The fund seeks to keep the monthly payout as consistent as possible. However, the amounts distributed
to shareholders may not be the same each month. Although it cannot be guaranteed by the fund, the fund does not expect to make distributions that will be treated as return of capital.
For temporary defensive purposes during unusual economic or market conditions or for liquidity purposes, the fund may invest up to 100% of its assets directly in cash, money market instruments, repurchase agreements and other short-term obligations. When the fund engages in such activities, it may not achieve its investment objective.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart below shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for the various periods compared to those of two broad based indices and a composite index based on the fund’s target allocations. This information provides some indication of the risks of investing in the fund. All figures assume distributions were reinvested. Keep in mind that future performance (both before and after taxes) may differ from past performance. For current performance information, please see www.schwabassetmanagement.com/schwabfunds_prospectus.
On September 12, 2022, the fund’s investment strategy changed. The performance history of the fund prior to that date is attributable to the former investment strategy.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart below shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for the various periods compared to those of two broad based indices and a composite index based on the fund’s target allocations.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.schwabassetmanagement.com/schwabfunds_prospectus
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Keep in mind that future performance (both before and after taxes) may differ from past performance.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns (%) as of 12/31
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter: 5.48% Q4 2022
Worst Quarter: (6.46%) Q3 2022
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2022
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.48%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.46%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns as of 12/31/22
Performance Table Market Index Changed rr_PerformanceTableMarketIndexChanged Effective September 12, 2022, the Maximum Payout Composite Index changed its name to Income Payout Composite Index.
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes reflect no deduction for expenses or taxes
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate The after-tax figures reflect the highest individual federal income tax rates in effect during the period and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Your actual after-tax returns depend on your individual tax situation. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan, an individual retirement account (IRA) or other tax-advantaged account.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher In some cases, the return after taxes on distributions and sale of shares may exceed the fund’s other returns due to an assumed benefit from any losses on a sale of shares at the end of the measurement period.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
The after-tax figures reflect the highest individual federal income tax rates in effect during the period and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan, an individual retirement account (IRA) or other tax-advantaged account. In some cases, the return after taxes on distributions and sale of shares may exceed the fund’s other returns due to an assumed benefit from any losses on a sale of shares at the end of the measurement period.
Schwab Monthly Income Fund - Income Payout | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock The fund is subject to risks, any of which could cause an investor to lose money.
Schwab Monthly Income Fund - Income Payout | Asset Allocation Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Asset Allocation Risk. The fund is subject to the risk that the selection of the underlying funds and the allocation of the fund’s assets among the various asset classes and market segments may cause the fund to underperform other funds with a similar investment objective. The fund is not managed to maximize tax efficiency for taxable shareholder accounts. Investors should consider whether the fund is an appropriate investment in light of their current financial position and retirement needs.
Schwab Monthly Income Fund - Income Payout | Conflicts of Interest Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Conflicts of Interest Risk. The investment adviser’s authority to select and substitute underlying funds from a variety of affiliated and unaffiliated mutual funds and ETFs may create a conflict of interest because the fees paid to it and its affiliates by some underlying funds are higher than the fees paid by other underlying funds. The investment adviser also may have an incentive to select an affiliated underlying fund for other reasons, including to increase assets under management or to support new investment strategies. In addition, other conflicts of interest may exist where the best interests of the affiliated underlying fund may not be aligned with those of the fund. However, the investment adviser is a fiduciary to the fund and is legally obligated to act in the fund’s best interests when selecting underlying funds.
Schwab Monthly Income Fund - Income Payout | Market Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market Risk. Financial markets rise and fall in response to a variety of factors, sometimes rapidly and unpredictably. Markets may be impacted by economic, political, regulatory and other conditions, including economic sanctions and other government actions. In addition, the occurrence of global events, such as war, terrorism, environmental disasters, natural disasters and epidemics, may also negatively affect the financial markets. As with any investment whose performance is tied to these markets, the value of an investment in the fund will fluctuate, which means that an investor could lose money over short or long periods.
Schwab Monthly Income Fund - Income Payout | ETF Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock ETF Risk. When the fund invests in an ETF, it will bear a proportionate share of the ETF’s expenses. In addition, lack of liquidity in the market for an ETF’s shares can result in its value being more volatile than the underlying portfolio of securities.
Schwab Monthly Income Fund - Income Payout | Structural Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Structural Risk. The fund’s monthly income payments will be made from fund assets and will reduce the amount of assets available for investment by the fund. Even if the fund’s capital grows over time, such growth may be insufficient to enable the fund to maintain the amount of its targeted annual payout and targeted monthly income payments. The fund’s investment losses may reduce the amount of future cash income payments an investor will receive from the fund. The dollar amount of the fund’s monthly income payments could vary substantially from one year to the next and over time depending on several factors, including the performance of the financial markets in which the fund invests, the allocation of fund assets across different asset classes and investments, the performance of the fund’s investment strategies, and the amount and timing of prior distributions by the fund. It is also possible for payments to go down substantially from one year to the next and over time depending on the timing of an investor’s investments in the fund. Any redemptions will proportionately reduce the amount of future cash income payments to be received from the fund. There is no guarantee that the fund will make monthly income payments to its shareholders or, if made, that the fund’s monthly income payments to shareholders will remain at a fixed amount.
Schwab Monthly Income Fund - Income Payout | Direct Investment Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Direct Investment Risk. The fund may invest directly in cash, cash equivalents and equity and fixed-income securities, including money market securities, to maintain its allocations. The fund’s direct investment in these securities is subject to the same or similar risks as an underlying fund’s investment in the same securities.
Schwab Monthly Income Fund - Income Payout | Portfolio Turnover Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Portfolio Turnover Risk. High portfolio turnover may result in the fund paying higher levels of transaction costs and may generate greater tax liabilities for shareholders. Portfolio turnover risk may cause the fund’s performance to be less than expected.
Schwab Monthly Income Fund - Income Payout | Underlying Fund Investment Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Underlying Fund Investment Risk. Before investing in the fund, investors should assess the risks associated with the underlying funds in which the fund may invest, which include any combination of the risks described below.
Schwab Monthly Income Fund - Income Payout | Investment Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Investment Risk. The fund may experience losses with respect to its investment in an underlying fund. Further, there is no guarantee that an underlying fund will be able to achieve its objective.
Schwab Monthly Income Fund - Income Payout | Management Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Management Risk. Certain underlying funds are actively managed mutual funds. An underlying fund’s adviser applies its own investment techniques and risk analyses in making investment decisions for the fund, but there can be no guarantee that they will produce the desired results or cause the underlying fund to meet its objectives.
Schwab Monthly Income Fund - Income Payout | Equity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Equity Risk. The prices of equity securities rise and fall daily. These price movements may result from factors affecting individual companies, industries or the securities market as a whole. In addition, equity markets tend to move in cycles, which may cause stock prices to fall over short or extended periods of time.
Schwab Monthly Income Fund - Income Payout | Market Capitalization Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market Capitalization Risk. Securities issued by companies of different market capitalizations tend to go in and out of favor based on market and economic conditions. During a period when securities of a particular market capitalization fall behind other types of investments, an underlying fund’s performance could be impacted.
Schwab Monthly Income Fund - Income Payout | Concentration Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Concentration Risk. To the extent that an underlying fund’s or the index’s portfolio is concentrated in the securities of issuers in a particular market, industry, group of industries, sector, country or asset class, the underlying fund may be adversely affected by the performance of those securities, may be subject to increased price volatility and may be more vulnerable to adverse economic, market, political or regulatory occurrences affecting that market, industry, group of industries, sector, country or asset class.
Schwab Monthly Income Fund - Income Payout | Fixed-Income Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Fixed-Income Risk. Interest rates rise and fall over time, which will affect an underlying fund’s yield and share price. A change in a central bank’s monetary policy or economic conditions, among other things, may result in a change in interest rates. A rise in interest rates could cause an underlying fund’s share price to fall. The credit quality of a portfolio investment could also cause an underlying fund’s share price to fall. An underlying fund could lose money if the issuer or guarantor of a portfolio investment or the counterparty to a derivatives contract fails to make timely principal or interest payments or otherwise honor its obligations. Fixed-income securities may be paid off earlier or later than expected. Either situation could cause an underlying fund to hold securities paying lower-than-market rates of interest, which could hurt an underlying fund’s yield or share price. Below investment-grade bonds (junk bonds) involve greater credit risk, are more volatile, involve greater risk of price declines and may be more susceptible to economic downturns than investment-grade securities.
Schwab Monthly Income Fund - Income Payout | Foreign Investment Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Foreign Investment Risk. An underlying fund’s investments in securities of foreign issuers involve certain risks that may be greater than those associated with investments in securities of U.S. issuers. These include risks of adverse changes in foreign economic, political, regulatory and other conditions; changes in currency exchange rates or exchange control regulations (including limitations on currency movements and exchanges); the imposition of economic sanctions or other government restrictions; differing accounting, auditing, financial reporting and legal standards and practices; differing securities market structures; and higher transaction costs. These risks may negatively impact the value or liquidity of an underlying fund’s investments, and could impair the underlying fund’s ability to meet its investment objective or invest in accordance with its investment strategy. There is a risk that investments in securities denominated in, and/or receiving revenues in, foreign currencies will decline in value relative to the U.S. dollar.
Schwab Monthly Income Fund - Income Payout | High-Yield Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock High-Yield Risk. An underlying fund’s investments in high-yield securities and unrated securities of similar credit quality (junk bonds) are subject to greater levels of credit and liquidity risks, and may be more volatile than higher-rated securities. High-yield securities are considered predominately speculative with respect to the issuer’s continuing ability to make principal and interest payments.
Schwab Monthly Income Fund - Income Payout | Floating Rate Loan Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Floating Rate Loan Risk. Transactions involving floating rate loans may have significantly longer settlement periods than more traditional bond investments (settlement can take longer than 7 days) and often involve borrowers whose financial condition is troubled or highly leveraged, which increases the risk that the underlying fund may not receive its proceeds in a timely manner and that the underlying fund may incur unexpected losses in order to pay redemption proceeds to its shareholders. In addition, loans are not registered or regulated under the federal securities laws like most stocks and bonds, so investors in loans have less protection against improper practices than investors in registered securities. While a loan assignment typically transfers all legal and economic rights to the buyer, a loan participation typically allows the seller to maintain legal title to the loan, meaning the buyer of a loan participation generally has no direct rights against the borrower and is exposed to credit risk of both the borrower and seller of the participation.
Schwab Monthly Income Fund - Income Payout | Derivatives Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Derivatives Risk. An underlying fund’s use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. An underlying fund’s use of derivatives could reduce the underlying fund’s performance, increase its volatility, and could cause the underlying fund to lose more than the initial amount invested. In addition, investments in derivatives may involve leverage, which means a small percentage of assets invested in derivatives can have a disproportionately large impact on an underlying fund.
Schwab Monthly Income Fund - Income Payout | Leverage Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Leverage Risk. Certain underlying fund transactions, such as derivatives transactions, short sales, reverse repurchase agreements, and mortgage dollar rolls, may give rise to a form of leverage and may expose an underlying fund to greater risk. Leverage tends to magnify the effect of any decrease or increase in the value of an underlying fund’s portfolio securities, which means even a small amount of leverage can have a disproportionately large impact on the fund.
Schwab Monthly Income Fund - Income Payout | Money Market Fund Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Money Market Fund Risk. A fund may invest in underlying money market funds that either seek to maintain a stable $1.00 net asset value (“stable share price money market funds”) or that have a share price that fluctuates (“variable share price money market funds”). Although an underlying stable share price money market fund seeks to maintain a stable $1.00 net asset value, it is possible to lose money by investing in such a money market fund. Because the share price of an underlying variable share price money market fund will fluctuate, when a fund sells the shares it owns they may be worth more or less than what the fund originally paid for them. In addition, neither type of money market fund is designed to offer capital appreciation. Certain underlying money market funds may impose a fee upon the sale of shares or may temporarily suspend the ability to sell shares if such fund’s liquidity falls below required minimums.
Schwab Monthly Income Fund - Income Payout | Tracking Error Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Tracking Error Risk. Each underlying index fund seeks to track the performance of its respective index, although it may not be successful in doing so. The divergence between the performance of an underlying fund and its index, positive or negative, is called “tracking error.” Tracking error can be caused by many factors and it may be significant. If an underlying fund utilizes a sampling approach, it may not track the return of the index as well as it would if the underlying fund purchased all of the securities in the index.
Schwab Monthly Income Fund - Income Payout | Liquidity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Liquidity Risk. An underlying fund may be unable to sell certain securities, such as illiquid securities, readily at a favorable time or price, or the underlying fund may have to sell them at a loss.
Schwab Monthly Income Fund - Income Payout | Underlying Fund Investment Risk - ETF Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock ETF Risk. When an underlying fund invests in an ETF, it will bear a proportionate share of the ETF’s expenses. In addition, lack of liquidity in the market for an ETF’s shares can result in its value being more volatile than the underlying portfolio of securities.
Schwab Monthly Income Fund - Income Payout | Securities Lending Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Securities Lending Risk. Certain underlying funds engage in securities lending, which involves the risk of loss of rights in, or delay in recovery of, the loaned securities if the borrower fails to return the security loaned or becomes insolvent.
Schwab Monthly Income Fund - Income Payout | Real Estate Investment Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Real Estate Investment Risk. An underlying fund in which the fund may invest may have a policy of concentrating its investments in real estate companies and companies related to the real estate industry. As such, an underlying fund is subject to risks associated with the direct ownership of real estate securities and the fund’s investment in such an underlying fund is subject to risks associated with the direct ownership of real estate securities and an investment in the underlying fund will be closely linked to the performance of the real estate markets. These risks include, among others, declines in the value of real estate; risks related to general and local economic conditions; possible lack of availability of mortgage funds or other limits to accessing the credit or capital markets; defaults by borrowers or tenants, particularly during an economic downturn; and changes in interest rates.
Schwab Monthly Income Fund - Income Payout | Real Estate Investment Trusts (REITs) Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Real Estate Investment Trusts (REITs) Risk. An underlying fund’s investments in REITs will be subject to the risks associated with the direct ownership of real estate, including fluctuations in the value of underlying properties, defaults by borrowers or tenants, access to capital, changes in interest rates and risks related to general or local economic conditions. REITs are also subject to certain additional risks, for example, REITs may have their investments in relatively few properties, a small geographic area or a single property type. In addition, REITs have their own expenses, and an underlying fund will bear a proportionate share of those expenses.
Schwab Monthly Income Fund - Income Payout | Underlying Fund Investment Risk - Portfolio Turnover Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Portfolio Turnover Risk. Certain of the underlying funds may buy and sell portfolio securities actively. If they do, their portfolio turnover rate and transaction costs will rise, which may lower the underlying fund’s performance and may increase the likelihood of capital gains distributions.
Schwab Monthly Income Fund - Income Payout | S&P 500 Index  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel S&P 500 Index
1 Year rr_AverageAnnualReturnYear01 (18.11%)
5 Years rr_AverageAnnualReturnYear05 9.42%
10 Years rr_AverageAnnualReturnYear10 12.56%
Schwab Monthly Income Fund - Income Payout | Bloomberg US Aggregate Bond Index  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Bloomberg US Aggregate Bond Index
1 Year rr_AverageAnnualReturnYear01 (13.01%)
5 Years rr_AverageAnnualReturnYear05 0.02%
10 Years rr_AverageAnnualReturnYear10 1.06%
Schwab Monthly Income Fund - Income Payout | Income Payout Composite Index  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Income Payout Composite Index
1 Year rr_AverageAnnualReturnYear01 (12.48%) [1]
5 Years rr_AverageAnnualReturnYear05 1.54% [1]
10 Years rr_AverageAnnualReturnYear10 2.58% [1]
Schwab Monthly Income Fund - Income Payout | Schwab Monthly Income Fund - Income Payout  
Risk/Return: rr_RiskReturnAbstract  
Shareholder Fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Management fees rr_ManagementFeesOverAssets none [2]
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none [2]
Other expenses rr_OtherExpensesOverAssets 0.14% [2]
Acquired fund fees and expenses (AFFE) rr_AcquiredFundFeesAndExpensesOverAssets 0.21% [2],[3]
Total annual fund operating expenses rr_ExpensesOverAssets 0.35% [2],[3]
Less expense reduction rr_FeeWaiverOrReimbursementOverAssets (0.14%) [2]
Total annual fund operating expenses (including AFFE) after expense reduction rr_NetExpensesOverAssets 0.21% [2],[3],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 22
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 68
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 118
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 268
Annual Return 2013 rr_AnnualReturn2013 1.66%
Annual Return 2014 rr_AnnualReturn2014 5.29%
Annual Return 2015 rr_AnnualReturn2015 0.22%
Annual Return 2016 rr_AnnualReturn2016 2.97%
Annual Return 2017 rr_AnnualReturn2017 5.64%
Annual Return 2018 rr_AnnualReturn2018 (2.31%)
Annual Return 2019 rr_AnnualReturn2019 11.18%
Annual Return 2020 rr_AnnualReturn2020 6.93%
Annual Return 2021 rr_AnnualReturn2021 2.33%
Annual Return 2022 rr_AnnualReturn2022 (12.50%)
Label rr_AverageAnnualReturnLabel Before taxes
1 Year rr_AverageAnnualReturnYear01 (12.50%)
5 Years rr_AverageAnnualReturnYear05 0.79%
10 Years rr_AverageAnnualReturnYear10 1.95%
Schwab Monthly Income Fund - Income Payout | Schwab Monthly Income Fund - Income Payout | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel After taxes on distributions
1 Year rr_AverageAnnualReturnYear01 (13.65%)
5 Years rr_AverageAnnualReturnYear05 (0.33%)
10 Years rr_AverageAnnualReturnYear10 0.78%
Schwab Monthly Income Fund - Income Payout | Schwab Monthly Income Fund - Income Payout | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel After taxes on distributions and sale of shares
1 Year rr_AverageAnnualReturnYear01 (6.96%)
5 Years rr_AverageAnnualReturnYear05 0.27%
10 Years rr_AverageAnnualReturnYear10 1.12%
[1] Effective September 12, 2022, the Maximum Payout Composite Index changed its name to Income Payout Composite Index. The Income Payout Composite Index is a custom blended index developed by Charles Schwab Investment Management based on a comparable portfolio asset allocation. Effective September 13, 2022, the Income Payout Composite Index is composed of 2% Bloomberg US Treasury Bills 1-3 Month Index, 13% Dow Jones U.S. Dividend 100 Index, 11% Dow Jones International Dividend 100 Index (Net), 6% FTSE EPRA/NAREIT Global Index (Net), 26% Bloomberg US Aggregate Bond Index, 9% Bloomberg US 5-10 Year Corporate Bond Index, 8% Bloomberg US 1-5 Year Corporate Bond Index, 6% Bloomberg US Treasury Long Index, 9% Bloomberg US High Yield 2% Issuer Cap Index, 7% ICE BofA Fixed Rate Preferred Securities Index, and 3% Morningstar LSTA US Performing Loans Index. From January 29, 2019 to September 12, 2022, the Income Payout Composite Index was composed of 10.5% S&P 500 Index, 4.4% MSCI EAFE Index (Net), 2.6% FTSE EPRA Nareit Global Index (Net), 80.5% Bloomberg US Aggregate Bond Index, and 2.0% Bloomberg US Treasury Bills 1-3 Month Index. From April 1, 2013 to January 29, 2019, the Income Payout Composite Index was composed of 10.5% S&P 500 Index, 4.4% MSCI EAFE Index (Net), 2.6% FTSE EPRA Nareit Global Index (Net), 48.3% Bloomberg US Aggregate Bond Index, 32.2% Bloomberg US Aggregate Intermediate Bond Index, and 2.0% Bloomberg US Treasury Bills 1-3 Month Index. Prior to April 1, 2013, the Income Payout Composite Index was composed of 10% S&P 500 Index and 90% Bloomberg US Aggregate Bond Index. Percentages listed may not total to 100% due to rounding.
[2] The information in the table has been restated to reflect current fees and expenses.
[3] AFFE are based on estimated amounts for the current fiscal period. AFFE reflect fees and expenses incurred indirectly by the fund through its investments in the underlying funds. The total annual fund operating expenses in the fee table may differ from the expense ratios in the fund’s “Financial Highlights” that include only the fund’s direct operating expenses and not AFFE.
[4] The investment adviser and its affiliates have agreed to limit the total annual fund operating expenses (excluding interest, taxes and certain non-routine expenses) of the fund to 0.00% for so long as the investment adviser serves as the adviser to the fund. This agreement may only be amended or terminated with the approval of the fund’s Board of Trustees. This agreement is limited to the fund’s direct operating expenses and does not apply to AFFE.