Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Prospectus Date	rr_ProspectusDate	Dec. 01, 2021
PIMCO Climate Bond Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	PIMCO Climate Bond 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 optimal risk adjusted returns, consistent with prudent investment management, while giving consideration to long term climate related risks and opportunities.
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 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 80 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 79% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	79.00%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	<span style="color:#323232;font-family:Arial;font-size:9.10pt;">You may qualify for sales </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">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
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, Class A or Class C 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 seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund will normally vary from 2 years to 8 years based on PIMCO’s market forecasts. Duration is a measure used to determine the sensitivity of a security’s price to changes in interest rates. The longer a security’s duration, the more sensitive it will be to changes in interest rates.The Fund invests opportunistically in a broad spectrum of climate focused instruments and debt from issuers demonstrating leadership with respect to addressing climate related factors. Given the long term nature of the risks and opportunities presented by climate change and resource depletion, PIMCO may emphasize investment strategies that are more strategic, or long-term in nature, with less emphasis on short-term, tactical trading strategies.The Fund’s investments ordinarily include labeled and unlabeled “green” bonds, as well as the debt of issuers demonstrating leadership in addressing risk and opportunities around climate related change. Labeled green bonds are those issues with proceeds specifically earmarked to be used for climate and environmental projects. Labeled green bonds are often verified by a third party, which certifies that the bond will fund projects that include environmental benefits. Unlabeled green bonds or climate-aligned bonds are securities with proceeds used for climate-aligned projects and initiatives but are issued without formal certifications. When considering whether an issuer has demonstrated leadership in addressing risk and opportunities around climate related change, PIMCO may consider a variety of factors, such as whether an issuer provides low carbon solutions, has implemented or prepared a transition plan to a low carbon economy or such other factors that PIMCO may determine are relevant.When considering an investment, PIMCO may utilize the following resources, among others, to evaluate climate related factors: PIMCO’s internal research and scoring process relating to climate factors, third party research and data providers, an issuer’s alignment with international commitments deemed relevant by PIMCO (such as the 2016 Paris Agreement on climate change), and/or information made available by the issuer, such as carbon emissions and intensity. In determining the efficacy of an issuer’s environmental practices, PIMCO will use its own proprietary assessments of material environmental and climate-oriented issues and may also reference standards as set forth by recognized global organizations, such as entities sponsored by the United Nations.The Fund may avoid investment in the securities of issuers whose business practices with respect to climate specific factors do not meet criteria established by PIMCO. Additionally, PIMCO may engage proactively with issuers to encourage them to improve their environmental practices or preparations for a low carbon economy. PIMCO’s activities in this respect may include, but are not limited to, direct dialogue with company management, such as through in-person meetings, phone calls, electronic communications and letters. Through these engagement activities, PIMCO will seek to identify opportunities for a company to improve its climate focused practices and will endeavor to work collaboratively with company management to establish concrete objectives and to develop a plan for meeting these objectives. The Fund has flexibility to invest in securities of issuers whose climate-related practices are currently suboptimal, with the expectation that these practices may improve over time either as a result of PIMCO’s engagement efforts or through the company’s own initiatives. The Fund may exclude those issuers that are not receptive to PIMCO’s engagement efforts, as determined in PIMCO’s sole discretion.The Fund will not invest in the securities of any issuer determined by PIMCO to be engaged principally in the fossil fuel-related sectors, including distribution/retail, equipment and services, extraction and production, petrochemicals, pipelines and transportation and refining, and the production or distribution of coal and coal fired generation. The Fund may invest in the securities of issuers determined by PIMCO to be engaged principally in biofuel production, natural gas generation and sales and trading activities. Moreover, the Fund will not invest in the securities of any issuer determined by PIMCO to be engaged principally in the manufacture of alcoholic beverages, tobacco products or military equipment, the operation of gambling casinos, or in the production or trade of pornographic materials. To the extent possible on the basis of information available to PIMCO, an issuer will be deemed to be principally engaged in an activity if it derives more than 10% of its gross revenues from such activities. However, green labeled bonds from issuers involved in fossil fuel-related sectors, as defined above, may be permitted.The Fund may invest in up to 25% of its total assets in high yield securities (“junk bonds”), as rated by Moody’s Investors Service, Inc. (“Moody’s”), Standard & Poor’s Ratings Services (“S&P”) or Fitch, Inc. (“Fitch”), or, if unrated, determined by PIMCO (except such limitation shall not apply to the Fund’s investments in mortgage- and asset-backed securities). In the event that ratings and services assign different ratings to the same security, PIMCO will use the highest rating as the credit rating for that security. The Fund may also invest without limitation in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. In addition, the Fund may invest up to 25% of its total assets in securities and instruments that are economically tied to emerging market countries (this limitation does not apply to investment grade sovereign debt denominated in the local currency with less than 1 year remaining to maturity, which means the Fund may invest in such instruments without limitation subject to any applicable legal or regulatory limitation). The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred securities.The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund’s prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).
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.New Fund Risk:  the risk that a new fund’s performance may not represent how the fund is expected to or may perform in the long term. In addition, new funds have limited operating histories for investors to evaluate and new funds may not attract sufficient assets to achieve investment and trading efficienciesSmall Fund Risk:  the risk that a smaller fund may not achieve investment or trading efficiencies. Additionally, a smaller fund may be more adversely affected by large purchases or redemptions of fund sharesClimate-Related Investing Risk:  the risk that, because the Fund’s climate-related investment strategy may select or exclude securities of certain issuers for reasons other than performance, the Fund may differ from funds that do not utilize a climate-related investment strategy. Climate-related investing is qualitative and subjective by nature, and there is no guarantee that the factors utilized by PIMCO or any judgment exercised by PIMCO will reflect the opinions of any particular investorInterest 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 maturityMarket 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 performanceEquity 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. issuersEmerging 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 lossManagement Risk:  the risk that the investment techniques and risk analyses applied by PIMCO 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 and the individual portfolio managers in connection with managing the Fund and may cause PIMCO 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 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>
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 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. Performance for Class A and Class C shares 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’s benchmark index is the Bloomberg MSCI Green Bond Index, USD Hedged which offers investors an objective and robust measure of the global market for fixed income securities issued to fund projects with direct environmental benefits. An independent research driven methodology is used to evaluate index-eligible green bonds to ensure they adhere to established Green Bond Principles and to classify bonds by their environmental use of proceeds. It is not possible to invest directly in an unmanaged index. Lipper General Bond Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that do not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues.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 broad-based securities market index and an index of similar funds.</span>
Performance Additional Market Index [Text]	rr_PerformanceAdditionalMarketIndex	<span style="color:#323232;font-family:Arial;font-size:9.10pt;margin-left:0%;">The Fund’s benchmark index is the Bloomberg MSCI Green Bond Index, </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">USD Hedged which offers investors an objective and robust measure of the global market for fixed income securities issued to fund projects with direct environmental benefits. An independent research driven methodology is used to evaluate index-eligible green bonds to ensure they adhere to established Green Bond Principles and to classify bonds by their environmental use of proceeds. It is not possible to invest directly in an unmanaged index. Lipper General Bond Funds Average is a </span><span style="color:#000000;font-family:Arial;font-size:9.10pt;margin-left:0%;">total return performance average of Funds tracked by Lipper, Inc. that do </span><span style="color:#000000;font-family:Arial;font-size:9.10pt;">not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues.</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, 20208.11%Worst QuarterMarch 31, 2020-4.88%Year-to-DateJune 30, 20210.01%
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 Does Reflect Sales Loads	rr_PerformanceTableDoesReflectSalesLoads	<span style="color:#323232;font-family:Arial;font-size:9.10pt;">Performance for Class A and </span><span style="color:#323232;font-family:Arial;font-size:9.10pt;">Class C shares in the Average Annual Total Returns table reflects the impact of sales charges.</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 Climate Bond 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	0.50%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets
Other Expenses	rr_OtherExpensesOverAssets	0.04%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.54%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets		[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.54%
1 Year	rr_ExpenseExampleYear01	$ 55
3 Years	rr_ExpenseExampleYear03	173
5 Years	rr_ExpenseExampleYear05	302
10 Years	rr_ExpenseExampleYear10	$ 677
2020	rr_AnnualReturn2020	6.77%
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	0.01%
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	8.11%
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	(4.88%)
1 Year	rr_AverageAnnualReturnYear01	6.77%
Since Inception	rr_AverageAnnualReturnSinceInception	6.49%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 10, 2019
PIMCO Climate Bond 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	0.60%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets
Other Expenses	rr_OtherExpensesOverAssets	0.04%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.64%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets		[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.64%
1 Year	rr_ExpenseExampleYear01	$ 65
3 Years	rr_ExpenseExampleYear03	205
5 Years	rr_ExpenseExampleYear05	357
10 Years	rr_ExpenseExampleYear10	$ 798
1 Year	rr_AverageAnnualReturnYear01	6.65%
Since Inception	rr_AverageAnnualReturnSinceInception	6.37%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 10, 2019
PIMCO Climate Bond 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	0.70%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets
Other Expenses	rr_OtherExpensesOverAssets	0.04%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.74%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.05%)	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.69%
1 Year	rr_ExpenseExampleYear01	$ 70
3 Years	rr_ExpenseExampleYear03	232
5 Years	rr_ExpenseExampleYear05	407
10 Years	rr_ExpenseExampleYear10	$ 914
1 Year	rr_AverageAnnualReturnYear01	6.60%
Since Inception	rr_AverageAnnualReturnSinceInception	6.32%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 10, 2019
PIMCO Climate Bond Fund | A
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	2.25%
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	0.65%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.04%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.94%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets		[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.94%
1 Year	rr_ExpenseExampleYear01	$ 319
3 Years	rr_ExpenseExampleYear03	518
5 Years	rr_ExpenseExampleYear05	733
10 Years	rr_ExpenseExampleYear10	1,354
1 Year	rr_ExpenseExampleNoRedemptionYear01	319
3 Years	rr_ExpenseExampleNoRedemptionYear03	518
5 Years	rr_ExpenseExampleNoRedemptionYear05	733
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,354
1 Year	rr_AverageAnnualReturnYear01	3.95%
Since Inception	rr_AverageAnnualReturnSinceInception	3.81%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 10, 2019
PIMCO Climate Bond 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	0.65%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.04%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.69%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets		[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.69%
1 Year	rr_ExpenseExampleYear01	$ 272
3 Years	rr_ExpenseExampleYear03	533
5 Years	rr_ExpenseExampleYear05	918
10 Years	rr_ExpenseExampleYear10	1,998
1 Year	rr_ExpenseExampleNoRedemptionYear01	172
3 Years	rr_ExpenseExampleNoRedemptionYear03	533
5 Years	rr_ExpenseExampleNoRedemptionYear05	918
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,998
1 Year	rr_AverageAnnualReturnYear01	4.54%
Since Inception	rr_AverageAnnualReturnSinceInception	5.26%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 10, 2019
PIMCO Climate Bond Fund | Return After Taxes on Distributions | Institutional
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.76%	[3]
Since Inception	rr_AverageAnnualReturnSinceInception	5.49%	[3]
PIMCO Climate Bond Fund | Return After Taxes on Distributions and Sales of Fund Shares | Institutional
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	3.99%	[3]
Since Inception	rr_AverageAnnualReturnSinceInception	4.52%	[3]
PIMCO Climate Bond Fund | Bloomberg MSCI Green Bond Index, USD Hedged (reflects no deductions for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.67%
Since Inception	rr_AverageAnnualReturnSinceInception	5.93%
PIMCO Climate Bond Fund | Lipper General Bond Funds Average (reflects no deductions for taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.94%	[4]
Since Inception	rr_AverageAnnualReturnSinceInception	6.94%	[4]

[1] “Other Expenses” include interest expense of 0.03%. Interest expense is borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Excluding interest expense, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.51%, 0.61%, 0.66%, 0.91% and 1.66% for Institutional Class, I-2, I-3, Class A and Class C shares, respectively.

[2] 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.

[3] 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.

[4] The Lipper Average’s since inception return is determined from the nearest month-end following the Fund’s inception date and not from the actual inception date of the Fund.