Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Prospectus Date	rr_ProspectusDate	Jul. 30, 2021
PIMCO All Asset Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	PIMCO All Asset Fund
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#00687D;font-family:Arial;font-size:10.92pt;font-weight:bold;margin-left:0%;">Investment Objective</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks maximum real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#00687D;font-family:Arial;font-size:10.92pt;font-weight:bold;margin-left:0%;">Fees and Expenses of the Fund</span>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 43 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;margin-left:0%;">Shareholder Fees (fees paid directly from your investment):</span>
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;margin-left:0%;">Annual Fund Operating Expenses (expenses that you pay each </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;">year as a percentage of the value of your investment):</span>
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	<span style="color:#323232;font-family:Arial;font-size:7.60pt;">July 31, 2022</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="color:#00687D;font-family:Arial;font-size:10.92pt;font-weight:bold;margin-left:0%;">Portfolio Turnover</span>
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs 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 the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 143% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	143.00%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	<span style="color:#323232;font-family:Arial;font-size:9.10pt;">You may qualify for </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">sales charge discounts if you and your family invest, or agree to invest in the future, at least </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">$100,000</span><span style="color:#323232;font-family:Arial;font-size:9.10pt;"> in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds.</span>
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 100,000
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	<span style="color:#323232;font-family:Arial;font-size:7.60pt;">Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets Excluding Waivers of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets Excluding Waivers reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.</span>
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;margin-left:0%;">Example.</span>
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The Example is intended to help you compare the cost of investing in Institutional Class, I-2, I-3, Administrative Class, Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all 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:
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;margin-left:0%;">If you redeem your shares at the end of each period:</span>
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;margin-left:0%;">If you do not redeem your shares:</span>
Strategy [Heading]	rr_StrategyHeading	<span style="color:#00687D;font-family:Arial;font-size:10.92pt;font-weight:bold;margin-left:0%;">Principal Investment Strategies</span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a “fund of funds,” which is a term used to describe mutual funds that pursue their investment objective by investing in other funds. The Fund seeks to achieve its investment objective by investing under normal circumstances substantially all of its assets in the least expensive class of shares of any actively managed or smart beta funds (including mutual funds or exchange-traded funds) of the Trust, or PIMCO ETF Trust or PIMCO Equity Series, each an affiliated open-end investment company, except other funds of funds and series of the Trust sub-advised by Gurtin Municipal Bond Management (collectively, “Underlying PIMCO Funds”). As used in the investment objective, “real return” equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure, and “real capital” equals capital less the estimated cost of inflation measured by the change in an official inflation measure. In addition to investing in Underlying PIMCO Funds, at the discretion of Pacific Investment Management Company LLC (“PIMCO”) and without shareholder approval, the Fund may invest in additional Underlying PIMCO Funds created in the future.The Fund invests its assets in shares of the Underlying PIMCO Funds and does not invest directly in stocks or bonds of other issuers. Research Affiliates, the Fund’s asset allocation sub-adviser, determines how the Fund allocates and reallocates its assets among the Underlying PIMCO Funds. In doing so, the asset allocation sub-adviser seeks concurrent exposure to a broad spectrum of asset classes.Investments in Underlying PIMCO Funds.  The Fund may invest in any or all of the Underlying PIMCO Funds, but will not normally invest in every Underlying PIMCO Fund at any particular time. The Fund’s investment in a particular Underlying PIMCO Fund normally will not exceed 50% of its total assets. The Fund will not invest in the Short Strategy Underlying PIMCO Funds, which seek to gain a negative exposure to an asset class such as equities. The Fund’s combined investments in the Equity-Related Underlying PIMCO Funds will not exceed 50% of its total assets. In addition, the Fund’s combined investments in Inflation-Related Underlying PIMCO Funds, which seek to gain exposure to an asset class such as U.S. Treasury Inflation-Protected Securities (“TIPS”), commodities, or real estate, normally will not exceed 75% of its total assets.Asset Allocation Investment Process.  The Fund’s assets are not allocated according to a predetermined blend of shares of the Underlying PIMCO Funds. Instead, the Fund’s asset allocation sub-adviser considers a broad range of quantitative data and qualitative inputs, both in isolation and to a material degree as inputs into a series of quantitative models that inform the final allocation and trading decisions, which are made by the Fund’s portfolio managers. The quantitative data and qualitative inputs considered include (but are not limited to) macroeconomic data relating to U.S. and foreign economies (such as economic growth measures, inflation measures, production and consumption measures, trade figures, fiscal policies and monetary policies) and financial market data relating to U.S. and foreign asset classes (such as yield levels, income growth rates, valuation measures, credit and default risk measures and financial statement data). These data points are primarily used as inputs to a series of quantitative models, which collectively enable the asset allocation sub- adviser to construct multiple optimized model portfolios for consideration in determining the Fund’s actual allocation and trading approach. These include models relating to capital markets expectations, macroeconomic regimes, risk regimes, factor analysis of Underlying PIMCO Funds and portfolio construction. Multiple model portfolios are constructed, each optimized to different return and risk parameters, so that the portfolio managers can assess the implications, attributes and tradeoffs of different asset allocation approaches in determining the final allocation and trading decisions, in seeking to achieve the objectives of the Fund.In addition to these quantitative and model-driven considerations, which comprise a majority of the asset allocation investment process, the portfolio managers also may consider various qualitative inputs in refining their final allocation and trading decisions. These may include qualitative macroeconomic and financial market views held by the asset allocation sub-adviser and PIMCO, as well as subjective assessments of liquidity risk, risk premia attractiveness, expected net flows into the Fund and investor behavioral factors.The Fund’s asset allocation sub-adviser has the flexibility to reallocate the Fund’s assets among any or all of the Underlying PIMCO Funds based on the asset allocation sub-adviser’s ongoing analyses of the absolute and relative attractiveness of the asset class and other investment exposures represented in each. These include (but are not limited to) exposures relating to U.S. and foreign equity, fixed income, currency and commodity markets, as well as idiosyncratic exposures of specific companies, countries, issuers or risk premia. While these analyses are updated and reviewed frequently, material shifts in asset allocation positioning are typically staged over longer periods of time, which reflects multiple considerations including market momentum, seeking best trading execution and monitoring portfolio turnover.
Risk [Heading]	rr_RiskHeading	<span style="color:#00687D;font-family:Arial;font-size:10.92pt;font-weight:bold;margin-left:0%;">Principal Risks</span>
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return, are listed below.Principal Risks of the FundAllocation Risk:  the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declinesFund of Funds Risk:  the risk that a Fund’s performance is closely related to the risks associated with the securities and other investments held by the Underlying PIMCO Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Underlying PIMCO Funds to achieve their investment objectivesCertain principal risks of investing in the Underlying PIMCO Funds, and consequently the Fund, which could adversely affect its net asset value, yield and total return, are listed below.Certain Principal Risks of Underlying PIMCO FundsAs used in the risk disclosures below, the term “Fund” refers to one or more Underlying PIMCO Funds.Market Trading Risk:  the risk that an active secondary trading market for shares of a Fund that is an exchange-traded fund does not continue once developed, that such Fund may not continue to meet a listing exchange’s trading or listing requirements, or that such Fund’s shares trade at prices other than the Fund’s net asset valueMunicipal Project-Specific Risk:  the risk that a Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of specific projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single stateMunicipal Bond Risk:  the risk that an Underlying PIMCO Fund may be affected significantly by the economic, regulatory or political developments affecting the ability of issuers of debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax (“Municipal Bonds”) to pay interest or repay principalInterest Rate Risk:  the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio durationCall Risk:  the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable featuresCredit Risk:  the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligationsHigh Yield Risk:  the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) are subject to greater levels of credit, call and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments, and may be more volatile than higher-rated securities of similar maturityDistressed Company Risk:  the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers’ continuing ability to make principal and interest paymentsMarket Risk:  the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industriesIssuer Risk:  the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or servicesLiquidity Risk:  the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activityDerivatives Risk:  the risk of investing in derivative instruments (such as futures, swaps and structured securities), including leverage, liquidity, interest rate, market, credit and management risks, and valuation complexity. Changes in the value of a derivative may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. The Fund’s use of derivatives may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Over-the-counter (“OTC”) derivatives are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for OTC derivatives. The primary credit risk on derivatives that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a mutual fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives and/or adversely affect the value of derivatives and the Fund’s performanceFutures Contract Risk:  the risk that, while the value of a futures contract tends to correlate with the value of the underlying asset that it represents, differences between the futures market and the market for the underlying asset may result in an imperfect correlation. Futures contracts may involve risks different from, and possibly greater than, the risks associated with investing directly in the underlying assets. The purchase or sale of a futures contract may result in losses in excess of the amount invested in the futures contractModel Risk:  the risk that the Underlying PIMCO Fund’s investment models used in making investment allocation decisions, and the indexation or quantitative methodologies used in constructing an underlying index or model portfolio for an Underlying PIMCO Fund that seeks to track the investment results of such underlying index or model portfolio, may not adequately take into account certain factors or may rely on inaccurate data, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data, any of which may result in a decline in the value of an investment in the Underlying PIMCO FundCommodity Risk:  the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. 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 drought, floods, weather, livestock disease, public health emergencies, embargoes, tariffs and international economic, political and regulatory developmentsEquity Risk:  the risk that the value of equity securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securitiesMortgage-Related and Other Asset-Backed Securities Risk:  the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit riskForeign (Non-U.S.) Investment Risk:  the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuersReal Estate Risk:  the risk that the Fund’s investments in Real Estate Investment Trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject a Fund to liquidity and valuation riskEmerging Markets Risk:  the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment riskSovereign Debt Risk:  the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashionCurrency Risk:  the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currenciesLeveraging Risk:  the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of lossSmaller Company Risk:  the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund’s investments in smaller companies subject it to greater levels of credit, market and issuer riskIssuer Non-Diversification Risk:  the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are “non-diversified” may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are “diversified”Management Risk:  the risk that the investment techniques and risk analyses applied by PIMCO and Research Affiliates, including the use of quantitative models or methods, will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO, Research Affiliates and the individual portfolio managers in connection with managing the Fund and may cause PIMCO or Research Affiliates  to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achievedShort Exposure Risk:  the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale will not fulfill its contractual obligations, causing a loss to the FundTax Risk:  the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributionsSubsidiary Risk:  the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achievedValue Investing Risk:  a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occurConvertible Securities Risk:  as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit riskExchange-Traded Fund Risk:  the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fundTracking Error Risk:  the risk that the portfolio of a Fund that seeks to track the investment results of an underlying index may not closely track the underlying index for a number of reasons. The Fund incurs operating expenses, which are not applicable to the underlying index, and the costs of buying and selling securities, especially when rebalancing the Fund’s portfolio to reflect changes in the composition of the underlying index. Performance of the Fund and the underlying index may vary due to asset valuation differences and differences between the Fund’s portfolio and the underlying index due to legal restrictions, cost or liquidity restraints. The risk that performance of the Fund and the underlying index may vary may be heightened during periods of increased market volatility or other unusual market conditions. In addition, a Fund’s use of a representative sampling approach may cause the Fund to be less correlated to the return of the underlying index than if the Fund held all of the securities in the underlying indexIndexing Risk:  the risk that an Underlying PIMCO Fund that seeks to track the investment results of an underlying index is negatively affected by general declines in the asset classes represented by the underlying indexLIBOR Transition Risk:  the risk related to the anticipated discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund rely in some fashion upon LIBOR. Although the transition process away from LIBOR has become increasingly well-defined in advance of the anticipated discontinuation date, there remains uncertainty regarding the nature of any replacement rate, and any potential effects of the transition away from LIBOR on the Fund or on certain instruments in which the Fund invests can be difficult to ascertain. The transition process may involve, among other things, increased volatility or illiquidity in markets for instruments that currently rely on LIBOR and may result in a reduction in value of certain instruments held by the FundPlease see “Description of Principal Risks” in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. 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 government agency.
Risk Lose Money [Text]	rr_RiskLoseMoney	<span style="color:#323232;font-family:Arial;font-size:9.10pt;margin-left:0%;">It is possible to lose money on an investment in the Fund. </span>
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	<span style="color:#323232;font-family:Arial;font-size:9.10pt;">An </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">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 government agency.</span>
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;margin-left:0%;">Issuer Non-Diversification Risk:</span><span style="color:#000000;font-family:Arial;font-size:9.10pt;font-weight:bold;"> </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">  the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are “non-diversified” may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are “diversified”</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="color:#00687D;font-family:Arial;font-size:10.92pt;font-weight:bold;margin-left:0%;">Performance Information</span>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of a primary and a secondary broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. For periods prior to the inception date of I-3 shares (April 27, 2018), performance information shown in the table for that class is based on the performance of the Fund’s Institutional Class shares, adjusted to reflect the fees and expenses paid by the I-3 shares. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.The Fund measures its performance against a primary benchmark and a secondary benchmark. The Fund’s primary benchmark is the Bloomberg Barclays U.S. TIPS 1-10 Year Index.The Bloomberg Barclays U.S. TIPS: 1-10 Year Index is an unmanaged market index comprised of U.S. Treasury Inflation Protected Securities (“TIPS”) having a maturity of at least 1 year and less than 10 years. The CPI + 500 Basis Points benchmark is created by adding 5% to the annual percentage change in the Consumer Price Index (“CPI”). The CPI is an unmanaged index representing the rate of inflation of the U.S. consumer prices as determined by the US Bureau of Labor Statistics. Lipper Alternative Global Macro Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that, by prospectus language, invest around the world using economic theory to justify the decision-making process. The strategy is typically based on forecasts and analysis about interest rate trends, the general flow of funds, political changes, government policies, intergovernmental relations, and other broad systemic factors. These funds generally trade a wide range of markets and geographic regions, employing a broad range of trading ideas and instruments.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="color:#323232;font-family:Arial;font-size:9.10pt;">The information provides some indication of the risks of investing in the </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of a primary and a secondary broad-based securities market index and an index of similar funds.</span>
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	<span style="color:#3333FF;font-family:Arial;font-size:9.10pt;">https://www.pimco.com/en-us/product-finder</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-style:italic;">The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.</span>
Bar Chart [Heading]	rr_BarChartHeading	<span style="color:#FFFFFF;font-family:Arial;font-size:7.28pt;font-weight:bold;">Calendar Year Total Returns — Institutional Class</span>
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best QuarterJune 30, 202012.30%Worst QuarterMarch 31, 2020-16.05%Year-to-DateJune 30, 202112.66%
Performance Table Heading	rr_PerformanceTableHeading	<span style="color:#323232;font-family:Arial;font-size:9.10pt;font-weight:bold;margin-left:0%;">Average Annual Total Returns (for periods ended 12/31/20)</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="color:#323232;font-family:Arial;font-size:7.60pt;">After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. </span>
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	<span style="color:#323232;font-family:Arial;font-size:7.60pt;">Actual after-tax </span><span style="color:#323232;font-family:Arial;font-size:7.60pt;">returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</span>
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	<span style="color:#323232;font-family:Arial;font-size:7.60pt;"> After-tax returns are for Institutional Class shares only. After-tax </span><span style="color:#323232;font-family:Arial;font-size:7.60pt;">returns for other classes will vary.</span>
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	<span style="color:#323232;font-family:Arial;font-size:7.60pt;"> In some cases the return after taxes may exceed the return before taxes due </span><span style="color:#323232;font-family:Arial;font-size:7.60pt;">to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.</span>
PIMCO All Asset Fund | Institutional
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.225%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.78%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.005%	[2]
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[3],[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.915%
1 Year	rr_ExpenseExampleYear01	$ 93
3 Years	rr_ExpenseExampleYear03	311
5 Years	rr_ExpenseExampleYear05	546
10 Years	rr_ExpenseExampleYear10	$ 1,222
2011	rr_AnnualReturn2011	2.44%
2012	rr_AnnualReturn2012	15.44%
2013	rr_AnnualReturn2013	0.77%
2014	rr_AnnualReturn2014	0.80%
2015	rr_AnnualReturn2015	(8.72%)
2016	rr_AnnualReturn2016	13.34%
2017	rr_AnnualReturn2017	13.98%
2018	rr_AnnualReturn2018	(4.98%)
2019	rr_AnnualReturn2019	12.21%
2020	rr_AnnualReturn2020	8.41%
Year to Date Return, Label	rr_YearToDateReturnLabel	<span style="color:#323232;font-family:Arial;font-size:6.825pt;padding-left:0.0%;">Year-to-Date</span>
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2021
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	12.66%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="color:#323232;font-family:Arial;font-size:6.825pt;padding-left:0.0%;">Best Quarter</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	12.30%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="color:#323232;font-family:Arial;font-size:6.825pt;padding-left:0.0%;">Worst Quarter</span>
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(16.05%)
1 Year	rr_AverageAnnualReturnYear01	8.41%
5 Years	rr_AverageAnnualReturnYear05	8.35%
10 Years	rr_AverageAnnualReturnYear10	5.05%
PIMCO All Asset Fund | I-2
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.325%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.78%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.105%	[2]
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[3],[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.015%
1 Year	rr_ExpenseExampleYear01	$ 104
3 Years	rr_ExpenseExampleYear03	342
5 Years	rr_ExpenseExampleYear05	600
10 Years	rr_ExpenseExampleYear10	$ 1,338
1 Year	rr_AverageAnnualReturnYear01	8.38%
5 Years	rr_AverageAnnualReturnYear05	8.25%
10 Years	rr_AverageAnnualReturnYear10	4.95%
PIMCO All Asset Fund | I-3
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.425%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.78%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.205%	[2]
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.14%)	[3],[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.065%
1 Year	rr_ExpenseExampleYear01	$ 109
3 Years	rr_ExpenseExampleYear03	369
5 Years	rr_ExpenseExampleYear05	649
10 Years	rr_ExpenseExampleYear10	$ 1,448
1 Year	rr_AverageAnnualReturnYear01	8.18%
5 Years	rr_AverageAnnualReturnYear05	8.19%
10 Years	rr_AverageAnnualReturnYear10	4.90%
PIMCO All Asset Fund | Administrative
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.225%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.78%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.255%	[2]
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[3],[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.165%
1 Year	rr_ExpenseExampleYear01	$ 119
3 Years	rr_ExpenseExampleYear03	389
5 Years	rr_ExpenseExampleYear05	680
10 Years	rr_ExpenseExampleYear10	$ 1,509
1 Year	rr_AverageAnnualReturnYear01	8.23%
5 Years	rr_AverageAnnualReturnYear05	8.09%
10 Years	rr_AverageAnnualReturnYear10	4.80%
PIMCO All Asset Fund | A
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)	rr_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.425%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.78%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.455%	[2]
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[3],[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.365%
1 Year	rr_ExpenseExampleYear01	$ 509
3 Years	rr_ExpenseExampleYear03	809
5 Years	rr_ExpenseExampleYear05	1,132
10 Years	rr_ExpenseExampleYear10	2,043
1 Year	rr_ExpenseExampleNoRedemptionYear01	509
3 Years	rr_ExpenseExampleNoRedemptionYear03	809
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,132
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,043
1 Year	rr_AverageAnnualReturnYear01	3.91%
5 Years	rr_AverageAnnualReturnYear05	7.05%
10 Years	rr_AverageAnnualReturnYear10	4.15%
PIMCO All Asset Fund | C
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)	rr_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.425%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.78%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.205%	[2]
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[3],[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	2.115%
1 Year	rr_ExpenseExampleYear01	$ 315
3 Years	rr_ExpenseExampleYear03	681
5 Years	rr_ExpenseExampleYear05	1,174
10 Years	rr_ExpenseExampleYear10	2,532
1 Year	rr_ExpenseExampleNoRedemptionYear01	215
3 Years	rr_ExpenseExampleNoRedemptionYear03	681
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,174
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,532
1 Year	rr_AverageAnnualReturnYear01	6.08%
5 Years	rr_AverageAnnualReturnYear05	7.05%
10 Years	rr_AverageAnnualReturnYear10	3.76%
PIMCO All Asset Fund | R
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.425%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.78%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.705%	[2]
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[3],[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.615%
1 Year	rr_ExpenseExampleYear01	$ 164
3 Years	rr_ExpenseExampleYear03	528
5 Years	rr_ExpenseExampleYear05	917
10 Years	rr_ExpenseExampleYear10	$ 2,007
1 Year	rr_AverageAnnualReturnYear01	7.67%
5 Years	rr_AverageAnnualReturnYear05	7.59%
10 Years	rr_AverageAnnualReturnYear10	4.28%
PIMCO All Asset Fund | Return After Taxes on Distributions | Institutional
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.79%	[5]
5 Years	rr_AverageAnnualReturnYear05	6.53%	[5]
10 Years	rr_AverageAnnualReturnYear10	3.12%	[5]
PIMCO All Asset Fund | Return After Taxes on Distributions and Sales of Fund Shares | Institutional
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	4.94%	[5]
5 Years	rr_AverageAnnualReturnYear05	5.67%	[5]
10 Years	rr_AverageAnnualReturnYear10	3.03%	[5]
PIMCO All Asset Fund | Bloomberg Barclays U.S. TIPS: 1-10 Year Index (reflects no deductions for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	8.39%
5 Years	rr_AverageAnnualReturnYear05	4.13%
10 Years	rr_AverageAnnualReturnYear10	2.88%
PIMCO All Asset Fund | Consumer Price Index + 500 Basis Points (reflects no deductions for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.30%
5 Years	rr_AverageAnnualReturnYear05	6.93%
10 Years	rr_AverageAnnualReturnYear10	6.72%
PIMCO All Asset Fund | Lipper Alternative Global Macro Funds Average (reflects no deductions for taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.53%
5 Years	rr_AverageAnnualReturnYear05	5.06%
10 Years	rr_AverageAnnualReturnYear10	3.78%

[1] Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.05%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.865%, 0.965%, 1.015%, 1.115%, 1.315%, 2.065% and 1.565% for Institutional Class, I-2, I-3, Administrative Class, Class A, Class C and Class R shares, respectively.

[2] Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets Excluding Waivers of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets Excluding Waivers reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

[3] PIMCO has contractually agreed, through July 31, 2022, to reduce its advisory fee to the extent that the Underlying PIMCO Fund Expenses attributable to advisory and supervisory and administrative fees exceed 0.64% of the total assets invested in Underlying PIMCO Funds. PIMCO may recoup these waivers in future periods, not exceeding three years from the date of waiver, provided total expenses, including such recoupment, do not exceed the annual expense limit that was in place at the time the amount being recouped was originally waived and the current annual expense limit. This waiver will automatically renew for one-year terms unless PIMCO provides written notice to the Trust at least 30 days prior to the end of the then current term. The fee reduction is implemented based on a calculation of Underlying PIMCO Fund Expenses attributable to advisory and supervisory and administrative fees that is different from the calculation of Acquired Fund Fees and Expenses listed in the table above.

[4] PIMCO has contractually agreed, through July 31, 2022, to reduce its supervisory and administrative fee for the Fund’s I-3 shares by 0.05% of the average daily net assets attributable to I-3 shares of the Fund. This Fee Waiver Agreement renews annually unless terminated by PIMCO upon at least 30 days’ prior notice to the end of the contract term.

[5] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes 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. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.