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(B) If the Fund is a Money Market Fund that is a government Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(16), or a retail Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(25), and that is subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter (or is not subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter pursuant to \u00a7 270.2a\u20137(c)(2)(iii) of this chapter, but has chosen to rely on the ability to impose liquidity fees and suspend redemptions consistent with the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii)), include the following statement: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. 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        "documentation": "Include the statement \"The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors.\"",
        "label": "Risk Money Market Fund May Impose Fees or Suspend Sales [Text]"
       }
      }
     },
     "localname": "RiskMoneyMarketFundMayImposeFeesOrSuspendSales",
     "nsuri": "http://xbrl.sec.gov/rr/2018-01-31",
     "presentation": [
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetAllAuthorityFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaIntermediateMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaShortDurationMunicipalIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOClimateBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommoditiesPLUSStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommodityRealReturnStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCreditOpportunitiesBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODiversifiedIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODynamicBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOESGIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsCorporateBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsCurrencyandShort-TermInvestmentsFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsFullSpectrumBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsLocalCurrencyandBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOExtendedDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGNMAandGovernmentSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalAdvantageStrategyBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalCoreAssetAllocationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGovernmentMoneyMarketFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldSpectrumFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInflationResponseMulti-AssetFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInvestmentGradeCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermRealReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermUSGovernmentFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLongDurationTotalReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationCreditFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationESGFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationFundII",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOModerateDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMortgage-BackedSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMortgageOpportunitiesandBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCONationalIntermediateMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCONewYorkMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOPreferredandCapitalSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCORealEstateRealReturnStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCORealReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShort-TermFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShortAssetInvestmentFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShortDurationMunicipalIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOStrategicBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTRENDSManagedFuturesStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnESGFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFundII",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFundIV"
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     "auth_ref": [
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     "lang": {
      "en-us": {
       "role": {
        "documentation": "Include the statement \"Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.\"",
        "label": "Risk Money Market Fund May Not Preserve Dollar [Text]"
       }
      }
     },
     "localname": "RiskMoneyMarketFundMayNotPreserveDollar",
     "nsuri": "http://xbrl.sec.gov/rr/2018-01-31",
     "presentation": [
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetAllAuthorityFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaIntermediateMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaShortDurationMunicipalIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOClimateBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommoditiesPLUSStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommodityRealReturnStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCreditOpportunitiesBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODiversifiedIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODynamicBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOESGIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsCorporateBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsCurrencyandShort-TermInvestmentsFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsFullSpectrumBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsLocalCurrencyandBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOExtendedDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGNMAandGovernmentSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalAdvantageStrategyBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalCoreAssetAllocationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGovernmentMoneyMarketFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldSpectrumFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInflationResponseMulti-AssetFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInvestmentGradeCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermRealReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermUSGovernmentFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLongDurationTotalReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationCreditFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationESGFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationFundII",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOModerateDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMortgage-BackedSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMortgageOpportunitiesandBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCONationalIntermediateMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCONewYorkMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOPreferredandCapitalSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCORealEstateRealReturnStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCORealReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShort-TermFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShortAssetInvestmentFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShortDurationMunicipalIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOStrategicBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTRENDSManagedFuturesStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnESGFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFundII",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFundIV"
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     "lang": {
      "en-us": {
       "role": {
        "documentation": "Include the statement \"Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them.\"",
        "label": "Risk Money Market Fund Price Fluctuates [Text]"
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      }
     },
     "localname": "RiskMoneyMarketFundPriceFluctuates",
     "nsuri": "http://xbrl.sec.gov/rr/2018-01-31",
     "presentation": [
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetAllAuthorityFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetFund",
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      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaShortDurationMunicipalIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOClimateBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommoditiesPLUSStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommodityRealReturnStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCreditOpportunitiesBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODiversifiedIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODynamicBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOESGIncomeFund",
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      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsFullSpectrumBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsLocalCurrencyandBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOExtendedDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGNMAandGovernmentSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalAdvantageStrategyBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalCoreAssetAllocationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGovernmentMoneyMarketFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldSpectrumFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInflationResponseMulti-AssetFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInvestmentGradeCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermRealReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermUSGovernmentFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLongDurationTotalReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationCreditFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationESGFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationFundII",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOModerateDurationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMortgage-BackedSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMortgageOpportunitiesandBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCONationalIntermediateMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCONewYorkMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOPreferredandCapitalSecuritiesFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCORealEstateRealReturnStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCORealReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShort-TermFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShortAssetInvestmentFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOShortDurationMunicipalIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOStrategicBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTRENDSManagedFuturesStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnESGFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFundII",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOTotalReturnFundIV"
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     "auth_ref": [
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      "r52",
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     "lang": {
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       "role": {
        "documentation": "Include the statement \"The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.\"",
        "label": "Risk Money Market Fund Sponsor May Not Provide Support [Text]"
       }
      }
     },
     "localname": "RiskMoneyMarketFundSponsorMayNotProvideSupport",
     "nsuri": "http://xbrl.sec.gov/rr/2018-01-31",
     "presentation": [
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetAllAuthorityFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOAllAssetFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaIntermediateMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCaliforniaShortDurationMunicipalIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOClimateBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommoditiesPLUSStrategyFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOCommodityRealReturnStrategyFund",
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      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODiversifiedIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCODynamicBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOESGIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsCorporateBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsCurrencyandShort-TermInvestmentsFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsFullSpectrumBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOEmergingMarketsLocalCurrencyandBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOExtendedDurationFund",
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      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalAdvantageStrategyBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalBondOpportunitiesFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGlobalCoreAssetAllocationFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOGovernmentMoneyMarketFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldMunicipalBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOHighYieldSpectrumFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOIncomeFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInflationResponseMulti-AssetFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUSDollar-Hedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInternationalBondFundUnhedged",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOInvestmentGradeCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermCreditBondFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermRealReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLong-TermUSGovernmentFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLongDurationTotalReturnFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationCreditFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationESGFund",
      "http://www.pimco.com/role/DisclosureRiskReturnDetailDataElementsPIMCOLowDurationFund",
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