Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	DEUTSCHE DWS ASSET ALLOCATION TRUST
Prospectus Date	rr_ProspectusDate	Dec. 01, 2024
Class ACS | DWS Multi-Asset Moderate Allocation Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<span style="color:#000000;font-family:Arial;font-size:14pt;">DWS Multi-Asset Moderate Allocation Fund</span>
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Investment Objective</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The fund seeks to maximize total return.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Fees and Expenses</span>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	These are the fees and expenses you may pay when you buy, hold and sell shares. 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 charge discounts in Class A shares if you and your immediate family invest, or agree to invest in the future, at least $50,000 in DWS funds. More information about these and other discounts and waivers is available from your financial representative and in Choosing a Share Class (p. 36), Sales Charge Waivers and Discounts Available Through Intermediaries (Appendix B, p. 63) and Purchase and Redemption of Shares in the fund’s Statement of Additional Information (SAI) (p. II-15).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">SHAREHOLDER FEES </span><span style="color:#000000;font-family:Arial;font-size:8pt;">(paid directly from your investment)</span>
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">ANNUAL FUND OPERATING EXPENSES</span> <br/><span style="color:#000000;font-family:Arial;font-size:8pt;">(expenses that you pay each year as a % of the value of your investment)</span>
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	<span style="font-family:Arial;font-size:10pt;">November 30, 2025</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">PORTFOLIO TURNOVER </span>
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund (or an underlying 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 mean higher taxes if you are investing in a taxable account. These costs are not reflected in annual fund operating expenses or in the expense example, and can affect the fund's performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 52% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	52.00%
Expense Footnotes [Text Block]	rr_ExpenseFootnotesTextBlock	The Advisor has contractually agreed through November 30, 2025 to waive its fees and/or reimburse fund expenses to the extent necessary to maintain the fund's total annual operating expenses (excluding certain expenses such as extraordinary expenses, taxes, brokerage and interest expenses) at ratios no higher than 1.03%,1.78% and 0.78% for Class A, Class C and Class S, respectively. The agreement may only be terminated with the consent of the fund's Board. Because acquired fund fees and expenses are estimated for the current fiscal year based on expected acquired fund allocations, individual shareholders may experience total operating expenses higher or lower than the applicable expense cap depending upon when shares are redeemed and the fund’s actual allocations to acquired funds.
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	Investments of $1,000,000 or more may be eligible to buy Class A shares without a sales charge (load), but may be subject to a contingent deferred sales charge of 1.00% if redeemed within 12 months of the original purchase date and 0.50% if redeemed within the following six months.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	<span style="color:#000000;font-family:Arial;font-size:10pt;">You may qualify for sales charge discounts in Class A shares if you and your immediate family invest, or agree to invest in the future, at least </span><span style="color:#000000;font-family:Arial;font-size:10pt;">$50,000 </span><span style="color:#000000;font-family:Arial;font-size:10pt;"> in DWS funds.</span>
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">EXAMPLE</span>
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses (including one year of capped expenses in each period) remain the same. Class C shares generally convert automatically to Class A shares after 8 years. The information presented in the Example for Class C reflects the conversion of Class C shares to Class A shares after 8 years. See “Class C Shares” in the “Choosing a Share Class” section of the prospectus for more information. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Principal Investment Strategies</span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Main investments. The fund seeks to achieve its objective by investing in a broad range of both traditional asset classes (such as equity and fixed income investments) and alternative asset classes (such as real estate including real estate investment trusts (REITs), infrastructure, convertibles, commodities, currencies and absolute return strategies).Investments may be made directly in securities and derivatives (see “Derivatives” subsection) or in DWS funds (i.e., mutual funds, exchange-traded funds (ETFs) and other pooled investment vehicles managed by DWS Investment Management Americas, Inc., the fund’s investment advisor, or one of its affiliates). The fund may also invest in securities of unaffiliated mutual funds or ETFs when the economic exposure to a particular market or sector is not available through a DWS fund. The fund may invest in passive ETFs which seek to replicate the performance of an index, and in active ETFs, which do not replicate an index and are actively managed. DWS funds and other funds and ETFs in which the fund may invest are referred to as “underlying funds.” The fund’s allocations among direct investments and underlying funds will vary over time and at times the fund may operate as a fund-of-funds, investing almost entirely in underlying funds. The fund may be appropriate for investors seeking total return consistent with moderate levels of overall risk.Under normal market conditions, the fund invests between 50% and 70% of assets in equity securities, including investments in underlying funds that invest primarily in equity securities, and between 30% and 50% of assets in fixed income securities, including investments in underlying funds that invest primarily in fixed income securities. Variations outside of the stated ranges in the target percentage allocation for equity securities and fixed income securities are permitted up to plus or minus 10% of the fund's assets. The fund may also allocate up to 20% of fund assets in alternative asset classes in place of either fixed income or equity allocations.The fund can buy many types of securities (directly or indirectly through investment in underlying funds), among them common stocks, including dividend-paying stocks, convertible securities, corporate bonds, government bonds, municipal securities, inflation-indexed bonds, mortgage- and asset-backed securities and ETFs. The fund may invest in securities of any size, investment style, category or credit quality (including high yield debt securities, commonly referred to as junk bonds) and from any country (including emerging markets).Management process. Using a risk/return strategic asset allocation process, portfolio management allocates the fund’s assets among various asset categories. Portfolio management periodically reviews the fund’s allocations and may adjust them based on current or anticipated market conditions, to manage risk consistent with the fund’s overall investment strategy or based upon other relevant considerations.Portfolio management also utilizes a tactical asset allocation process to adjust allocations in response to short-term market changes from time to time. Tactical allocations reflect views from DWS’s Chief Investment Officer and global research platform. Tactical allocations, which may include derivative instruments, have shorter investment horizons as positions reflect short-term views and may be implemented as: (i) changes to a fund’s strategic asset allocation, (ii) through the addition of new allocations, or (iii) through changes to prior tactical allocations.
Risk [Heading]	rr_RiskHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Main Risks</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Past Performance</span>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	How a fund's returns vary from year to year can give an idea of its risk; so can comparing fund performance to overall market performance (as measured by an appropriatebroad-based securities market index).Past performance may not indicate future results. All performance figures below assume that dividends and distributions were reinvested. For more recent performance figures, go to dws.com (the Web site does not form a part of this prospectus) or call the telephone number included in this prospectus.On October 19, 2015, the fund changed from a fund-of-funds to a multi-asset allocation fund. Performance would have been different if the fund’s current investment strategy had been in effect.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="font-family:Arial;font-size:10pt;">How a fund's returns vary from year to year can give an idea of its risk; so can comparing fund performance to overall market performance (as measured by an appropriate</span><span style="font-family:Arial;font-size:10pt;">broad-based securities market index).</span>
Performance Additional Market Index [Text]	rr_PerformanceAdditionalMarketIndex	<span style="font-family:Arial;font-size:10pt;">The S&P Target Risk Moderate </span><span style="font-family:Arial;font-size:10pt;">Index is a more narrowly based index that reflects the market sector in which the fund invests.</span>
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	<span style="font-family:Arial;font-size:10pt;">dws.com</span><span style="color:#000000;font-family:Arial;font-size:10pt;">dws.com</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="font-family:Arial;font-size:10pt;">Past </span><span style="font-family:Arial;font-size:10pt;">performance may not indicate future results.</span>
Bar Chart [Heading]	rr_BarChartHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">CALENDAR YEAR TOTAL RETURNS </span><span style="color:#000000;font-family:Arial;font-size:8pt;">(%) (Class A)</span>
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	These year-by-year returns do not include sales charges, if any, and would be lower if they did. Returns for other classes were different and are not shown here.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	<span style="color:#000000;font-family:Arial;font-size:10pt;">These year-by-year returns do not include sales charges, if any, and would be lower if they did.</span>
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	ReturnsPeriod endingBest Quarter11.76%June 30, 2020Worst Quarter-16.05%March 31, 2020Year-to-Date11.56%September 30, 2024
Performance Table Heading	rr_PerformanceTableHeading	<span style="font-family:Arial;font-size:10pt;text-transform:uppercase;">Average Annual Total Returns</span> <br/><span style="font-family:Arial;font-size:8pt;">(For periods ended 12/31/2023 expressed as a %)</span>
Performance Table Market Index Changed	rr_PerformanceTableMarketIndexChanged	<span style="font-family:Arial;font-size:10pt;">The MSCI ACWI All Cap Index and Bloomberg Global Aggregate index replace the S&P Target Risk Moderate Index as the fund’s broad-based indices in compliance with updated regulatory requirements.</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax returns (which are shown only for Class A and would be different for other classes)</span><span style="color:#000000;font-family:Arial;font-size:10pt;"> reflect the historical </span><span style="color:#000000;font-family:Arial;font-size:10pt;">highest individual federal income tax rates, but do not reflect any state or local taxes.</span>
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	<span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax returns are not relevant to </span><span style="color:#000000;font-family:Arial;font-size:10pt;">shares held in an IRA, 401(k) or other tax-advantaged investment plan.</span>
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	<span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax returns (which are shown only for Class A and would be different for other classes)</span>
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns (which are shown only for Class A and would be different for other classes) reflect the historical highest individual federal income tax rates, but do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The MSCI ACWI All Cap Index and Bloomberg Global Aggregate index replace the S&P Target Risk Moderate Index as the fund’s broad-based indices in compliance with updated regulatory requirements.The S&P Target Risk Moderate Index is a more narrowly based index that reflects the market sector in which the fund invests.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Lose Money [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	There are several risk factors that could hurt the fund’s performance, cause you to lose money or cause the fund’s performance to trail that of other investments.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Not Insured Depository Institution [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Underlying Funds [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Because the fund invests in one or more underlying funds, the risks listed here include those of the underlying funds as well as those of the fund itself. Therefore, in these risk descriptions the term “the fund” may refer to the fund itself, one or more underlying funds, or both.Underlying funds risk. Because the fund may invest in underlying funds, the fund’s performance will be directly related to the performance of the underlying funds. To the extent that a given underlying fund underperforms its benchmark or its fund peer group, it may contribute to underperformance by the fund.In addition, the fund indirectly pays a portion of the expenses incurred by the underlying funds, which lowers the fund’s returns. To the extent that the fund’s allocations favor underlying funds with higher expenses, the overall cost of investing paid by the fund will be higher.The fund is also subject to the risk that an underlying fund may pay a redemption request made by the fund, wholly or partly, by an in-kind distribution of portfolio securities rather than in cash. The fund may hold such portfolio securities until the Advisor determines to dispose of them, and the fund will bear the market risk of the securities received in the redemption until their disposition. Upon disposing of such portfolio securities, the fund may experience increased brokerage commissions.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Asset Allocation [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Asset allocation risk. Portfolio management may favor one or more types of investments or assets that underperform other investments, assets, or securities markets as a whole. Anytime portfolio management buys or sells securities in order to adjust the fund’s asset allocation this will increase portfolio turnover and generate transaction costs.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Stock Market [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Stock market risk. When stock prices fall, you should expect the value of your investment to fall as well. Stock prices can be hurt by poor management on the part of the stock’s issuer, shrinking product demand and other business risks. These may affect single companies as well as groups of companies. The market as a whole may not favor the types of investments the fund makes, which could adversely affect a stock’s price, regardless of how well the company performs, or the fund’s ability to sell a stock at an attractive price. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising and falling prices. Events in the US and global financial markets, including actions taken by the US Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility which could negatively affect performance. High market volatility may also result from significant shifts in momentum of one or more specific stocks due to unusual increases or decreases in trading activity. Momentum can change quickly, and securities subject to shifts in momentum may be more volatile than the market as a whole and returns on such securities may drop precipitously. To the extent that the fund invests in a particular geographic region, capitalization or sector, the fund’s performance may be affected by the general performance of that region, capitalization or sector.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Market Disruption [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market disruption risk. Economies and financial markets throughout the world have become increasingly interconnected, which has increased the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. This includes reliance on global supply chains that are susceptible to disruptions resulting from, among other things, war and other armed conflicts, extreme weather events, and natural disasters. Such supply chain disruptions can lead to, and have led to, economic and market disruptions that have far-reaching effects on financial markets worldwide.The value of the fund’s investments may be negatively affected by adverse changes in overall economic or market conditions, such as the level of economic activity and productivity, unemployment and labor force participation rates, inflation or deflation (and expectations for inflation or deflation), interest rates, demand and supply for particular products or resources including labor, and debt levels and credit ratings, among other factors. Such adverse conditions may contribute to an overall economic contraction across entire economies or markets, which may negatively impact the profitability of issuers operating in those economies or markets. In addition, geopolitical and other globally interconnected occurrences, including war, terrorism, economic uncertainty or financial crises, contagion, trade disputes, government debt crises (including defaults or downgrades) or uncertainty about government debt payments, government shutdowns, public health crises, natural disasters, supply chain disruptions, climate change and related events or conditions, have led, and in the future may lead, to disruptions in the US and world economies and markets, which may increase financial market volatility and have significant adverse direct or indirect effects on the fund and its investments. Adverse market conditions or disruptions could cause the fund to lose money, experience significant redemptions, and encounter operational difficulties. Although multiple asset classes may be affected by adverse market conditions or a particular market disruption, the duration and effects may not be the same for all types of assets.Current military and other armed conflicts in various geographic regions, including those in Europe and the Middle East, can lead to, and have led to, economic and market disruptions, which may not be limited to the geographic region in which the conflict is occurring. Such conflicts can also result, and have resulted in some cases, in sanctions being levied by the United States, the European Union and/or other countries against countries or other actors involved in the conflict. In addition, such conflicts and related sanctions can adversely affect regional and global energy, commodities, financial and other markets and thus could affect the value of the fund's investments. The extent and duration of any military conflict, related sanctions and resulting economic and market disruptions are impossible to predict, but could be substantial.Other market disruption events include pandemic spread of viruses, such as the novel coronavirus known as COVID-19, which have caused significant uncertainty, market volatility, decreased economic and other activity, increased government activity, including economic stimulus measures, and supply chain disruptions. While COVID-19 is no longer considered to be a public health emergency, the fund and its investments may be adversely affected by lingering effects of this virus or future pandemic spread of viruses.In addition, markets are becoming increasingly susceptible to disruption events resulting from the use of new and emerging technologies to engage in cyber-attacks or to take over the Web sites and/or social media accounts of companies, governmental entities or public officials, or to otherwise pose as or impersonate such, which then may be used to disseminate false or misleading information that can cause volatility in financial markets or for the stock of a particular company, group of companies, industry or other class of assets.Adverse market conditions or particular market disruptions, such as those discussed above, may magnify the impact of each of the other risks described in this “MAIN RISKS” section and may increase volatility in one or more markets in which the fund invests leading to the potential for greater losses for the fund.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Foreign Investment [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Foreign investment risk. The fund faces the risks inherent in foreign investing. Adverse political, economic or social developments, as well as US and foreign government actions such as the imposition of tariffs, economic and trade sanctions or embargoes, could undermine the value of the fund’s foreign investments, prevent the fund from realizing the full value of its foreign investments or prevent the fund from selling foreign securities it holds.Financial reporting standards for companies based in foreign markets differ from those in the US. Additionally, foreign securities markets generally are smaller and less liquid than US markets. To the extent that the fund invests in non-US dollar denominated foreign securities, changes in currency exchange rates may affect the US dollar value of foreign securities or the income or gain received on these securities. In addition, hedging a non-US dollar currency may not be successful and in certain instances can have a negative effect on performance if the US dollar declines in value relative to that currency. In addition, because non-US markets may be open on days when the fund does not price its shares, the value of the foreign securities in the fund’s portfolio may change on days when shareholders will not be able to purchase or sell the fund’s shares.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Emerging Markets [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Emerging markets risk. Foreign investment risks are greater in emerging markets than in developed markets. Investments in emerging markets are often considered speculative.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Credit [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Credit risk. The fund's performance could be hurt if an issuer of a debt security suffers an adverse change in financial condition that results in the issuer not making timely payments of interest or principal, a security downgrade or an inability to meet a financial obligation. Credit risk is greater for lower-rated securities.Because the issuers of high-yield debt securities, or junk bonds (debt securities rated below the fourth highest credit rating category), may be in uncertain financial health, the prices of their debt securities can be more vulnerable to bad economic news, or even the expectation of bad news, than investment-grade debt securities. Credit risk for high-yield securities is greater than for higher-rated securities.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk US Government Default [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	US Government default risk. Due to the rising US government debt burden and potential limitations caused by the statutory debt ceiling, it is possible that the US government may not be able to meet its financial obligations or that securities issued by the US government may experience credit downgrades. In the past, US sovereign credit has experienced downgrades and there can be no guarantee that it will not experience further downgrades in the future by rating agencies. Such a credit event may adversely impact the financial markets and the fund. From time to time, uncertainty regarding the status of negotiations in the US government to increase the statutory debt ceiling and/or failure to increase the statutory debt ceiling could increase the risk that the US government may default on payments on certain US government securities, cause the credit rating of the US government to be downgraded or increase volatility in financial markets, result in higher interest rates, reduce prices of US Treasury securities and/or increase the costs of certain kinds of debt.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Interest Rate [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Interest rate risk. When interest rates rise, prices of debt securities generally decline. The longer the duration of the fund’s debt securities, the more sensitive the fund will be to interest rate changes. (As a general rule, a 1% rise in interest rates means a 1% fall in value for every year of duration.) Interest rates can change in response to the supply and demand for credit, government and/or central bank monetary policy and action, inflation rates, and other factors. Recent and potential future changes in monetary policy made by central banks or governments are likely to affect the level of interest rates. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and potential illiquidity and may detract from fund performance to the extent the fund is exposed to such interest rates and/or volatility. Rising interest rates could cause the value of the fund’s investments — and therefore its share price as well — to decline. A rising interest rate environment may cause investors to move out of fixed-income securities and related markets on a large scale, which could adversely affect the price and liquidity of such securities and could also result in increased redemptions from the fund. Increased redemptions from the fund may force the fund to sell investments at a time when it is not advantageous to do so, which could result in losses.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Derivatives [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Derivatives risk. Derivatives involve risks different from, and possibly greater than, the risks associated with investing directly in securities and other more traditional investments. Risks associated with derivatives may include the risk that the derivative is not well correlated with the underlying asset, security or index to which it relates; the risk that derivatives may result in losses or missed opportunities; the risk that the fund will be unable to sell the derivative because of an illiquid secondary market; the risk that a counterparty is unwilling or unable to meet its obligation, which risk may be heightened in derivative transactions entered into “over-the-counter” (i.e., not on an exchange or contract market); and the risk that the derivative transaction could expose the fund to the effects of leverage, which could increase the fund's exposure to the market and magnify potential losses.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Liquidity [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Liquidity risk. In certain situations, it may be difficult or impossible to sell an investment and/or the fund may sell certain investments at a price or time that is not advantageous in order to meet redemption requests or other cash needs. Unusual market conditions, such as an unusually high volume of redemptions or other similar conditions could increase liquidity risk for the fund.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Concentration Underlying Funds [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Concentration risk – underlying funds. Any underlying fund that concentrates in a particular segment of the market (such as commodities, infrastructure-related companies and real estate securities) will generally be more volatile than a fund that invests more broadly. Any market price movements, regulatory or technological changes, or economic conditions affecting the particular market segment in which the underlying fund concentrates will have a significant impact on the underlying fund’s performance.While the fund does not concentrate in a particular industry, it may concentrate in an underlying DWS fund, and there is risk for the fund with respect to the aggregation of holdings of underlying funds. The aggregation of holdings of underlying funds may result in the fund having increased exposure to a particular industry or group of industries, or to a single issuer. Such increased exposure to industries or issuers may have the effect of increasing the volatility of the fund’s returns. The fund does not control the investments of the underlying funds, and any increased exposure to industries or issuers occurs as a result of the underlying funds following their own investment objectives and strategies. However, to the extent practicable, the fund will consider whether an underlying fund’s investments may create significant exposure to a particular industry or group of industries.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Counterparty [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Counterparty risk. A financial institution or other counterparty with whom the fund does business, or that underwrites, distributes or guarantees any investments or contracts that the fund owns or is otherwise exposed to, may decline in financial health and become unable to honor its commitments. This could cause losses for the fund or could delay the return or delivery of collateral or other assets to the fund.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk ETFs [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	ETF risk. Because ETFs trade on a securities exchange, their shares may trade at a premium or discount to their net asset value. An ETF is subject to the risks of the assets in which it invests as well as those of the investment strategy it follows. The fund may incur brokerage costs when it buys and sells shares of an ETF and also bears its proportionate share of the ETF’s fees and expenses, which are passed through to ETF shareholders.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Security Selection [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Security selection risk. The securities in the fund’s portfolio may decline in value. Portfolio management could be wrong in its analysis of industries, companies, economic trends, ESG factors, the relative attractiveness of different securities or other matters.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Interest Rate Strategies [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Interest rate strategies risk. The success of the interest rate futures strategies depends, in part, on the effectiveness and implementation of portfolio management's proprietary strategies. If portfolio management's analysis proves to be incorrect, losses to the fund may be significant. The risk of loss is heightened during periods of rapid rises in interest rates.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Currency Strategies [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Currency strategies risk. The success of the currency strategies depends, in part, on the effectiveness and implementation of portfolio management's proprietary strategies. If portfolio management's analysis proves to be incorrect, losses to the fund may be significant and may substantially exceed the intended level of market exposure for the currency strategies.As part of the currency strategies, the fund could have substantial exposure to the risks of non-US currency markets. Foreign currency rates may fluctuate significantly over short periods of time for a number of reasons, including changes in interest rates and economic or political developments in the US or abroad. As a result, the fund's exposure to foreign currencies could cause lower returns or even losses to the fund. Although portfolio management seeks to limit these risks through the aggregation of various long and short positions, there can be no assurance that it will be able to do so.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Pricing [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Pricing risk. If market conditions make it difficult to value some investments, the fund may value these investments using more subjective methods, such as fair value pricing. In such cases, the value determined for an investment could be different from the value realized upon such investment’s sale. As a result, you could pay more than the market value when buying fund shares or receive less than the market value when selling fund shares.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Real Estate Securities [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Real estate securities risk. Real estate companies, including REITs, can be negatively affected by the risks associated with direct ownership of real estate, such as general or local economic conditions, decreases in real estate value, increases in property taxes and operating expenses, liabilities or losses due to environmental problems, extreme weather or natural disasters, delays in completion of construction, falling rents (whether due to poor demand, increased competition, overbuilding, or limitations on rents), zoning changes, rising interest rates, lack of credit, failure of borrowers to repay loans and losses from casualty or condemnation. In addition, real estate values have been subject to substantial fluctuations and declines on a local, regional and national basis in the past and may continue to be in the future. During periods of rising interest rates, real estate securities may lose appeal for investors who may be able to obtain higher yields from other income-producing investments. Rising interest rates may also mean that financing for property purchases and improvements is more costly and difficult to obtain. In addition, many real estate companies, including REITs, utilize leverage which increases investment risk. Highly leveraged real estate companies are particularly vulnerable to the effects of an economic downturn. Further, REITs are dependent upon management skills, may not be diversified and may have relatively small market capitalizations, which can increase volatility. REITs must satisfy certain requirements in order to qualify for favorable tax treatment under applicable tax laws, and a failure to qualify could adversely affect the value of the REIT. By investing in REITs through a fund, a shareholder will bear expenses of the REITs in addition to expenses of the fund and will not be entitled to the federal income tax deduction for qualified REIT dividends available to noncorporate investors that own REITs directly unless certain holding period and other requirements are satisfied.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Infrastructure Related Companies [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Infrastructure-related companies risk. Infrastructure-related companies can be negatively affected by various factors, including general or local economic conditions and political developments, general changes in market sentiment towards infrastructure assets, high interest costs in connection with capital construction and improvement programs, difficulty in raising capital, costs associated with compliance with changes in regulations, regulation or intervention by various government authorities, including government regulation of rates, inexperience with and potential losses resulting from the deregulation of a particular industry or sector, changes in tax laws, environmental problems, costs or disruptions caused by extreme weather or other natural disasters, the effects of energy conservation policies, commodities markets disruptions (e.g., significant changes over short time periods in the price of oil), technological changes, surplus capacity, casualty losses, threat of terrorist attacks and changes in interest rates. Rising interest rates could lead to higher financing costs and reduced earnings for infrastructure-related companies. A company is considered to be an infrastructure-related company if at least 50% of its non-cash assets are infrastructure assets or 50% of its gross income or net profits are derived, directly or indirectly, from the ownership, management, construction, operation, utilization or financing of infrastructure assets. Infrastructure-related companies may be focused in the energy, industrials and utilities sectors. At times, the performance of securities in these sectors may lag the performance of other sectors or the broader market as a whole. A downturn in these sectors could have an adverse impact on the fund.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Commodities Related Investments [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Commodities-related investments risk. The commodities-linked derivative instruments in which the fund invests tend to be more volatile than many other types of securities and may subject the fund to special risks that do not apply to all derivatives transactions. For example, the value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as climate changes, drought, floods, weather, livestock disease, changes in storage costs, embargoes, tariffs, policies of commodity cartels and international economic, political and regulatory developments.The value of a commodity-linked derivative investment generally is based upon the price movements of a physical commodity (such as energy, minerals, or agricultural products), a futures contract, swap or commodity index, or other economic variables linked to changes in the value of commodities or the commodities markets. A liquid secondary market may not exist for the types of commodity-linked derivative instruments the fund buys, which may make it difficult for the fund to sell them at an acceptable price. The fund’s ability to gain exposure to commodity-linked investments and achieve its investment objective may be limited by its intention to qualify as a regulated investment company under the Internal Revenue Code of 1986, as amended.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Prepayment [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Prepayment and extension risk. When interest rates fall, issuers of high interest debt obligations may pay off the debts earlier than expected (prepayment risk), and the fund may have to reinvest the proceeds at lower yields. When interest rates rise, issuers of lower interest debt obligations may pay off the debts later than expected (extension risk), thus keeping the fund’s assets tied up in lower interest debt obligations. Ultimately, any changes or unexpected behavior in interest rates could increase the volatility of the fund’s share price and yield and could hurt fund performance. Prepayments could also create capital gains tax liability in some instances.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Risk Operational And Technology [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Operational and technology risk. Cyber-attacks, disruptions or failures that affect the fund’s service providers or counterparties, issuers of securities held by the fund, or other market participants may adversely affect the fund and its shareholders, including by causing losses for the fund or impairing fund operations. For example, the fund’s or its service providers’ assets or sensitive or confidential information may be misappropriated, data may be corrupted and operations may be disrupted (e.g., cyber-attacks, operational failures or broader disruptions may cause the release of private shareholder information or confidential fund information, interfere with the processing of shareholder transactions, impact the ability to calculate the fund’s net asset value and impede trading). Market events and disruptions also may trigger a volume of transactions that overloads current information technology and communication systems and processes, impacting the ability to conduct the fund’s operations.While the fund and its service providers may establish business continuity and other plans and processes that seek to address the possibility of and fallout from cyber-attacks, disruptions or failures, there are inherent limitations in such plans and systems, including that they do not apply to third parties, such as fund counterparties, issuers of securities held by the fund or other market participants, as well as the possibility that certain risks have not been identified or that unknown threats may emerge in the future and there is no assurance that such plans and processes will be effective. Among other situations, disruptions (for example, pandemics or health crises) that cause prolonged periods of remote work or significant employee absences at the fund’s service providers could impact the ability to conduct the fund’s operations. In addition, the fund cannot directly control any cybersecurity plans and systems put in place by its service providers, fund counterparties, issuers of securities held by the fund or other market participants.
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases, as % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	5.75%
Maximum deferred sales charge (load), as % of redemption proceeds	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	rr_MaximumAccountFee	$ 20
Management fee	rr_ManagementFeesOverAssets	0.10%
Distribution/service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	0.24%
Other expenses	rr_OtherExpensesOverAssets	1.02%
Acquired funds fees and expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.45%
Total annual fund operating expenses	rr_ExpensesOverAssets	1.81%
Fee waiver/expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.78%
Total annual fund operating expenses after fee waiver/expense reimbursement	rr_NetExpensesOverAssets	1.03%
1 Year	rr_ExpenseExampleYear01	$ 674
3 Years	rr_ExpenseExampleYear03	1,040
5 Years	rr_ExpenseExampleYear05	1,430
10 Years	rr_ExpenseExampleYear10	2,519
1 Year	rr_ExpenseExampleNoRedemptionYear01	674
3 Years	rr_ExpenseExampleNoRedemptionYear03	1,040
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,430
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,519
2014	rr_AnnualReturn2014	4.58%
2015	rr_AnnualReturn2015	(1.13%)
2016	rr_AnnualReturn2016	2.55%
2017	rr_AnnualReturn2017	13.80%
2018	rr_AnnualReturn2018	(7.65%)
2019	rr_AnnualReturn2019	19.73%
2020	rr_AnnualReturn2020	8.20%
2021	rr_AnnualReturn2021	13.25%
2022	rr_AnnualReturn2022	(15.01%)
2023	rr_AnnualReturn2023	13.89%
Year to Date Return, Label	rr_YearToDateReturnLabel	<span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Year-to-Date</span>
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2024
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	11.56%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Best Quarter</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	11.76%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Worst Quarter</span>
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(16.05%)
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases, as % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load), as % of redemption proceeds	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	rr_MaximumAccountFee	$ 20
Management fee	rr_ManagementFeesOverAssets	0.10%
Distribution/service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other expenses	rr_OtherExpensesOverAssets	1.09%
Acquired funds fees and expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.45%
Total annual fund operating expenses	rr_ExpensesOverAssets	2.64%
Fee waiver/expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.86%
Total annual fund operating expenses after fee waiver/expense reimbursement	rr_NetExpensesOverAssets	1.78%
1 Year	rr_ExpenseExampleYear01	$ 281
3 Years	rr_ExpenseExampleYear03	739
5 Years	rr_ExpenseExampleYear05	1,323
10 Years	rr_ExpenseExampleYear10	2,707
1 Year	rr_ExpenseExampleNoRedemptionYear01	181
3 Years	rr_ExpenseExampleNoRedemptionYear03	739
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,323
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,707
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Class S
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases, as % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load), as % of redemption proceeds	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	rr_MaximumAccountFee	$ 20
Management fee	rr_ManagementFeesOverAssets	0.10%
Distribution/service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	1.00%
Acquired funds fees and expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.45%
Total annual fund operating expenses	rr_ExpensesOverAssets	1.55%
Fee waiver/expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.77%
Total annual fund operating expenses after fee waiver/expense reimbursement	rr_NetExpensesOverAssets	0.78%
1 Year	rr_ExpenseExampleYear01	$ 80
3 Years	rr_ExpenseExampleYear03	414
5 Years	rr_ExpenseExampleYear05	772
10 Years	rr_ExpenseExampleYear10	1,780
1 Year	rr_ExpenseExampleNoRedemptionYear01	80
3 Years	rr_ExpenseExampleNoRedemptionYear03	414
5 Years	rr_ExpenseExampleNoRedemptionYear05	772
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,780
Class ACS | DWS Multi-Asset Moderate Allocation Fund | before tax | Class A
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	7.34%
5 Years	rr_AverageAnnualReturnYear05	6.00%
10 Years	rr_AverageAnnualReturnYear10	4.08%
Class Inception	rr_AverageAnnualReturnInceptionDate	Nov. 01, 2004
Class ACS | DWS Multi-Asset Moderate Allocation Fund | before tax | Class C
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	11.99%
5 Years	rr_AverageAnnualReturnYear05	6.44%
10 Years	rr_AverageAnnualReturnYear10	3.91%
Class Inception	rr_AverageAnnualReturnInceptionDate	Nov. 01, 2004
Class ACS | DWS Multi-Asset Moderate Allocation Fund | before tax | Class S
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	14.08%
5 Years	rr_AverageAnnualReturnYear05	7.50%
10 Years	rr_AverageAnnualReturnYear10	4.95%
Class Inception	rr_AverageAnnualReturnInceptionDate	Nov. 01, 2004
Class ACS | DWS Multi-Asset Moderate Allocation Fund | After tax on distributions | Class A
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.75%
5 Years	rr_AverageAnnualReturnYear05	4.42%
10 Years	rr_AverageAnnualReturnYear10	2.20%
Class ACS | DWS Multi-Asset Moderate Allocation Fund | After tax on distributions and sale of fund shares | Class A
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.23%
5 Years	rr_AverageAnnualReturnYear05	4.46%
10 Years	rr_AverageAnnualReturnYear10	2.75%
Class ACS | DWS Multi-Asset Moderate Allocation Fund | MSCI ACWI All Cap Index (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	21.46%
5 Years	rr_AverageAnnualReturnYear05	11.46%
10 Years	rr_AverageAnnualReturnYear10	7.75%
Class ACS | DWS Multi-Asset Moderate Allocation Fund | Bloomberg Global Aggregate Index (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.72%
5 Years	rr_AverageAnnualReturnYear05	(0.32%)
10 Years	rr_AverageAnnualReturnYear10	0.38%
Class ACS | DWS Multi-Asset Moderate Allocation Fund | S&P Target Risk Moderate Index (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	12.41%
5 Years	rr_AverageAnnualReturnYear05	5.66%
10 Years	rr_AverageAnnualReturnYear10	4.48%

[1] Investments of $1,000,000 or more may be eligible to buy Class A shares without a sales charge (load), but may be subject to a contingent deferred sales charge of 1.00% if redeemed within 12 months of the original purchase date and 0.50% if redeemed within the following six months.