DCP


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold
dei:LegalEntity, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:CostsAndExpenses

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:GeneralAndAdministrativeExpense
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:GrossProfit
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidationItems

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense
us-gaap:ConsolidationItems

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherIncome

us-gaap:ProfitLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:PartnerCapitalComponents
us-gaap:PartnerTypeOfPartnersCapitalAccount
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
dei:LegalEntity, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:Revenues
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementBusinessSegments

us-gaap:Assets
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:AssetsCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet
us-gaap:Energy

us-gaap:OtherAssetsCurrent

us-gaap:AssetsNoncurrent
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:TaxesPayableCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:DerivativeInstrumentRisk, us-gaap:PartnerCapitalComponents
us-gaap:PartnerCapitalComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:PartnerCapitalComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ProfitLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:PartnerCapitalComponents
us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

dpm:AdvancesToEquityMethodInvestments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

dpm:BuySellPurchases

dpm:BuySellRevenues

dpm:EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses

dpm:NetIncomeLossAllocatedtoPreferredSeriesALimitedPartners

dpm:NetIncomeLossAllocatedtoPreferredSeriesBLimitedPartners

dpm:NetIncomeLossAllocatedtoPreferredSeriesCLimitedPartners
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFive
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFiveVolume
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFour
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFourVolume
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearOne
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearOneVolume
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearSix
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearSixVolume
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearThree
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearThreeVolume
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearTwo
us-gaap:Energy
dpm:NetLongOrShortPositionsExpectedToBeRealizedYearTwoVolume
us-gaap:PartnerTypeOfPartnersCapitalAccount, us-gaap:SubsequentEventType
dpm:PreferredLimitedPartnershipUnitDistributionAmountDeclared

dpm:PropertyPlantAndEquipmentOtherIncreaseDecrease
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
dpm:RealizedGainLossOnDerivatives

dpm:RevenuefromcontractwithcustomernotwithinscopeofTopic606

dpm:RightOfUseAssetsObtainedInExchangeForOperatingAndFinanceLeaseLiabilities

us-gaap:AssetImpairmentCharges
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:Depreciation

us-gaap:DepreciationAndAmortization
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:StatementBusinessSegments

us-gaap:DistributionMadeToLimitedPartnerCashDistributionsPaid
us-gaap:SubsequentEventType
us-gaap:DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit

us-gaap:EmployeeBenefitsAndShareBasedCompensation
us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue
us-gaap:BalanceSheetLocation
us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:BalanceSheetLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:BalanceSheetLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
us-gaap:BalanceSheetLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
us-gaap:BalanceSheetLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
us-gaap:BalanceSheetLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:GoodwillImpairmentLossNetOfTax
us-gaap:StatementBusinessSegments

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestCostsCapitalized

us-gaap:InventoryWriteDown
us-gaap:IncomeStatementLocation
us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost
dei:LegalEntity, us-gaap:Ownership
us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest

us-gaap:NetIncomeLossAllocatedToLimitedPartners

us-gaap:NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted

us-gaap:NetIncomeLossPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted

us-gaap:NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherCostAndExpenseOperating
dei:LegalEntity, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherOperatingIncomeExpenseNet
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PartnersCapitalAccountDistributions
us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:PaymentsOfCapitalDistribution

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToMinorityShareholders

us-gaap:ProceedsFromDebtNetOfIssuanceCosts

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:RestructuringCosts
us-gaap:ConsolidationItems

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:ShortTermLeaseCost
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:UnrealizedGainLossOnDerivativesAndCommodityContracts
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:VariableLeaseCost

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstanding

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstandingDiluted

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

dpm:DebtInstrumentCovenantsLimitedMaximumBorrowingAmount
us-gaap:CreditFacility
dpm:DebtInstrumentCovenantsMaximumBorrowingAmount

dpm:LeaseLiability

dpm:LettersofCreditReceivedfromCounterparty

dpm:LongTermDebtMaturitiesRepaymentsOfPrincipalTotal
us-gaap:StatementEquityComponents
dpm:OfferValueOfCommonStockUnitRemainingAvailableForSale

dpm:RightOfUseAssets
us-gaap:AwardType
dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageGrantDateFairValueExpectedtoVest
us-gaap:AwardType
dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueEndingBalance
us-gaap:AwardType
dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueExpectedtoVest

us-gaap:AccountsPayableOtherCurrent

us-gaap:AccountsPayableRelatedPartiesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsReceivableRelatedPartiesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AssetRetirementObligation
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:ValuationTechnique
us-gaap:AssetsFairValueDisclosure

us-gaap:ConstructionPayableCurrent

us-gaap:ContractWithCustomerLiability

us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentFairValue

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtLongtermAndShorttermCombinedAmount
us-gaap:CreditFacility
us-gaap:DebtWeightedAverageInterestRate

us-gaap:DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeAssets

us-gaap:DerivativeCollateralRightToReclaimCash
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:BalanceSheetLocation, us-gaap:InvestmentType
us-gaap:DerivativeInstrumentRisk
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:BalanceSheetLocation, us-gaap:InvestmentType
us-gaap:DerivativeInstrumentRisk
us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:ValuationTechnique
us-gaap:DerivativeForwardPrice
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:InvestmentType, us-gaap:ValuationTechnique

us-gaap:DerivativeInstrumentsAndHedges
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsAndHedgesLiabilities
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsAndHedgesNoncurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeLiabilities

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationAssets

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities

us-gaap:EquityMethodInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:BalanceSheetLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
us-gaap:BalanceSheetLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:InterestPayableCurrent
us-gaap:CreditFacility
us-gaap:InterestsContinuedToBeHeldByTransferorFairValue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:CreditFacility
us-gaap:LettersOfCreditOutstandingAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:InvestmentType, us-gaap:ValuationTechnique
us-gaap:LiabilitiesFairValueDisclosure

us-gaap:LimitedPartnersCapitalAccount
us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearTwo

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherReceivablesNetCurrent

us-gaap:PartnersCapital

us-gaap:PartnersCapitalAttributableToNoncontrollingInterest

us-gaap:PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest
us-gaap:PartnerCapitalComponents
us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:PreferredUnitsIssued
us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:PreferredUnitsOutstanding
us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:PreferredUnitsPreferredPartnersCapitalAccounts
us-gaap:CreditFacility
us-gaap:PrincipalAmountOutstandingOnLoansSecuritized

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RestrictedCashCurrent
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:RestrictedInvestmentsAtFairValue
us-gaap:BalanceSheetLocation, us-gaap:InvestmentType

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:UnamortizedDebtIssuanceExpense

Plots across concepts


IncomeStatement
Operating Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Finite Lived Intangible Assets Net
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Contract With Customer Liability Current
Noncurrent Liabilities
Deferred Income Tax Liabilities Net
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Receivable
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0.59336NANANANA0.35082NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 COGS Ratio dei:LegalEntity,us-gaap:ProductOrService dpm:ThirdParty,dpm:NaturalGasNGLsandCondensate▄▇▂▂▁▂▄▃▃▆▇█▆▅1446.02014.01225.01204.01003.01171.01534.01353.01365.01771.01980.02191.01849.01744.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:Enbridge,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntityNA4.0NA1.0NA1.0-2.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:PhillipsSixtySix,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity█▆▅▂▁▂▃▂646.0527.0421.0247.0157.0212.0287.0237.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:AffiliatedEntity,dpm:NaturalGasNGLsandCondensate█▆▅▂▁▂▃▂▃▃▄▆▄▃667.0555.0435.0262.0169.0222.0296.0246.0294.0340.0386.0491.0408.0325.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ConsolidatedEntities,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty us-gaap:MajorityOwnedSubsidiaryUnconsolidated,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity▇█▄▄▄▃▃▃▁▄21.024.014.014.012.09.011.09.04.014.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ConsolidatedEntities,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty us-gaap:MajorityOwnedSubsidiaryUnconsolidated,dpm:TransportationProcessingandOther,srt:AffiliatedEntity██▆▄▄▄▃▁5.05.04.03.03.03.02.01.0NA1.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:GatheringandProcessing▆▆▄▃▁▃▄▃▄▅█▇▆▅▇▆▅▆▆▅▄▃1314.01314.01091.0857.0618.0913.01091.0916.01024.01288.01664.01579.01314.01286.01502.01337.01269.01359.01300.01217.01037.0936.0NANANANANANANANANANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:LogisticsandMarketing▅▆▃▂▁▂▄▃▃▅▆█▆▅▆▅▄▅▄▃▂▂1917.02098.01584.01438.01150.01358.01689.01509.01613.02045.02253.02590.02192.01979.02161.01913.01756.01927.01824.01641.01457.01264.0NANANANANANANANANANANANANANANANANANANANANANANANA
 Net profit Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:GatheringandProcessing▆▆▄▃▁▃▄▃▄▅█▇▆▅▇▆▅▆▆▅▄▃1314.01314.01091.0857.0618.0913.01091.0916.01024.01288.01664.01579.01314.01286.01502.01337.01269.01359.01300.01217.01037.0936.0NANANANANANANANANANANANANANANANANANANANANANANANA
 Net profit Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:LogisticsandMarketing▅▆▃▂▁▂▄▃▃▅▆█▆▅▆▅▄▅▄▃▂▂1917.02098.01584.01438.01150.01358.01689.01509.01613.02045.02253.02590.02192.01979.02161.01913.01756.01927.01824.01641.01457.01264.0NANANANANANANANANANANANANANANANANANANANANANANANA
 Net profit Margin us-gaap:EquityMethodInvestmentNonconsolidatedInvestee dpm:UnconsolidatedAffiliates█▁528.0489.0NANA510.0527.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▆▇▇▇▇▁▆▄▇▇▇▇▇▇▇▆▇▇▇▇▇▇▇▇▆▇█▇▆▇▆▆▇▇▇▆▇▆▆▇▇▆▆▆▆▆-31.053.086.0111.047.0-550.02.0-178.0119.075.094.081.062.062.060.0-20.088.0102.075.0120.045.072.090.071.0-2.070.0199.0116.029.081.029.00.0103.053.065.12.681.528.90.166.043.2-1.59.80.525.630.7
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▂▂▂▂▂▂▂▂▂▂▂▂▂▂▄▁▂▁▅▁▂▁▄▂▁▁▄▁▁█▆▃▄▃▃▂▂▂▅▁█▄▄▃▂▁1.01.01.01.01.01.01.01.01.01.01.01.01.01.04.00.01.00.05.00.01.00.04.01.00.00.04.00.00.010.07.03.04.03.03.00.60.70.76.0-0.49.73.54.83.31.00.1
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▇▇▇▇▁▆▄▇▇▇▇▇▇▇▆▇▇▇▇▇▇▇▇▆▇█▇▆▇▆▆▇▇▇▆▇▆▆▇▇▆▆▆▆▆-30.054.087.0112.048.0-549.03.0-177.0120.076.095.082.063.063.064.0-20.089.0102.080.0120.046.072.094.072.0-2.070.0203.0116.029.091.036.03.0107.056.068.13.282.229.66.165.652.92.014.63.826.630.8
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService dpm:ThirdParty,dpm:NaturalGasNGLsandCondensate▅▆▃▂▁▂▄▃▃▅▆█▆▆1540.01763.01088.0944.0723.0872.01275.01041.01084.01533.01742.02074.01703.01604.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:Enbridge,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity▄▄█▂▁▁▄▃▄▄8.07.018.02.00.00.07.06.07.07.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:Enbridge,dpm:TransportationProcessingandOther,srt:AffiliatedEntityNANA0.01.0NANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:PhillipsSixtySix,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity▃▅█▂▁▄▅▆19.030.044.015.010.027.028.033.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:PhillipsSixtySix,dpm:TransportationProcessingandOther,srt:AffiliatedEntity▇▇█▄▃▃▂▂▁▁37.037.043.026.021.023.020.019.014.014.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:AffiliatedEntity,dpm:NaturalGasNGLsandCondensate▂▂▃▁▁▁████▇▇▇▅47.055.077.032.021.036.0279.0267.0272.0271.0253.0253.0225.0165.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:AffiliatedEntity,dpm:TransportationFees█▃▆▇▅▆▅▃▁▂252.0219.0240.0242.0230.0238.0233.0220.0204.0209.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty us-gaap:MajorityOwnedSubsidiaryUnconsolidated,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity▆▅▄▄▂▁█▁▂▇20.018.015.015.011.09.026.08.011.024.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty us-gaap:MajorityOwnedSubsidiaryUnconsolidated,dpm:TransportationProcessingandOther,srt:AffiliatedEntity█▁▄█▇█▄▅▃▄215.0182.0197.0215.0209.0215.0198.0201.0190.0195.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▇▇▅▅▄▇▆▆▅▆██▇▆▇▆▆▆▁▁▁▁▁▂▂▂▂▂▃▃▂▂▂▂▁▁▁▂▁▁▁▂▁▁▁▁2169.02315.01740.01526.01280.02203.01977.01910.01722.02166.02537.02693.02283.02086.02275.02074.01871.02020.0351.0286.0330.0332.0372.0422.0458.0499.0683.0757.0775.0973.0759.0662.0663.0671.0385.1329.5324.3494.5381.9318.6324.6427.9341.6237.2249.7378.2
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal 1.0NANANA0.00.066.00.05.0-9.00.00.00.00.00.00.034.0NA0.0-47.0-6.0NA0.00.0NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense ▅▄▇▆▅▅▇▆▆▆▇▇▇▆█▆▇▆▃▃▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁57.038.080.066.051.056.074.066.068.067.077.070.070.059.088.069.071.062.024.022.021.021.021.021.022.021.016.017.015.016.015.015.016.016.011.811.13.64.65.44.63.74.23.93.33.43.7
us-gaap:GrossProfit ▄▄▅▅▄▇▅▅▆▅█▆▅▅▅▅▅▆▂▂▂▂▃▃▂▃▄▃▂▃▂▂▃▂▂▁▂▂▁▂▂▁▁▁▁246.0281.0380.0368.0300.0511.0375.0391.0442.0395.0612.0432.0389.0370.0391.0360.0392.0434.0144.0142.0117.0148.0178.0184.0124.0166.0307.0208.0136.0196.0147.0105.0202.0145.0122.462.9139.594.464.0126.099.971.854.539.771.8NA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▇▇▇▇▁▆▄▇▇▇▇▇▇▇▆▇▇▇▇▇▇▇▇▆▇█▇▆▇▆▆▇▇▇▆▇▆▆▇▇▆▆▆-30.054.085.0113.048.0-548.0-1.0-176.0120.077.096.082.063.064.061.0-18.091.0102.079.0120.047.072.092.072.0-6.070.0203.0118.030.092.041.03.0106.056.067.32.280.324.24.766.157.63.88.93.4NANA
us-gaap:IncomeTaxExpenseBenefit NANANA-1.00.0-1.03.0-1.00.01.01.00.01.01.0-3.02.02.01.0-1.00.01.00.0-2.00.0-4.01.00.02.01.03.06.01.00.01.00.00.30.50.20.20.20.20.2-0.20.10.10.3
 us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems us-gaap:CorporateNonSegmentNANANA-1.00.0-1.03.0-1.0-2.01.01.00.01.01.0-3.02.02.01.040.01.03.02.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxesPaidNet NANA1.02.0NANA0.00.0NANA0.00.0NANA0.00.0NANA0.00.0NANA-1.00.0NANA0.00.0NANA0.00.0NANA-0.10.1NANA0.00.0NANA0.00.0NANA
us-gaap:InterestExpense ████▇███▁▇▇▇▇▇▇███▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅77.077.076.077.071.078.083.079.0-73.069.066.069.067.067.070.073.073.073.023.023.024.024.023.025.022.022.022.022.023.019.012.014.014.012.010.48.111.112.68.98.68.48.07.17.57.37.2
us-gaap:InterestPaidNet ▆█▆▇▆█▅█▅▆▆▆▄█▇▇▅█▃▂▃▂▄▂▄▂▄▂▃▂▂▂▂▁▂▁▁▁▂▁▁▁▁▁67.089.061.073.061.088.054.089.050.065.067.063.045.084.072.075.056.087.031.011.031.011.035.010.033.08.034.09.020.010.015.08.016.01.015.81.04.51.59.85.21.01.21.13.5NANA
us-gaap:NetIncomeLoss ▆▇▇▇▇▁▆▄▇▇▇▇▇▇▇▆▇▇▇▇▇▇▇▇▆▇█▇▆▇▆▆▇▇▇▆▇▆▆▇▇▆▆▆▆▆-31.053.086.0111.047.0-550.01.0-178.0119.075.094.081.061.062.060.0-20.088.0101.075.0120.045.072.090.071.0-2.069.0199.0116.029.079.028.0-1.0102.052.064.31.379.123.3-1.566.341.5-5.94.30.025.832.3
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems us-gaap:CorporateNonSegment▇█▆▆▇▇▆▆▆▇▆▅▆▇▆▆▆▇▁▆▆▆-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:GatheringandProcessing▇▇▇▇▇▁▇▅▇▇▇█▇██▇████▇█3.027.085.050.011.0-645.012.0-147.090.067.089.096.076.0113.0132.029.0141.0152.0107.0134.056.0120.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:LogisticsandMarketing▂▄▅▇▅█▄▃▆▄▄▄▃▁▂▂▂▁▁▂▁▂109.0146.0158.0206.0177.0236.0149.0124.0185.0147.0152.0148.0130.079.088.099.092.087.085.0103.076.094.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▂▂▂▂▂▂▂▂▂▂▂▂▂▂▄▁▂▁▅▁▂▁▄▂▁▁▄▁▁█▆▃▄▃▃▂▂▂▅▁█▄▄▃▂▁1.01.01.01.01.01.01.01.01.01.01.01.01.01.04.00.01.00.05.00.01.00.04.01.00.00.04.00.00.010.07.03.04.03.03.00.60.70.76.0-0.49.73.54.83.31.00.1
 us-gaap:OperatingExpenses us-gaap:EquityMethodInvestmentNonconsolidatedInvestee dpm:UnconsolidatedAffiliates█▁210.0190.0NANA191.0185.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▅▆▇▇▆▁▆▄▇▆▇▇▆▇▇▆▇▇▇▇▆▇▇▇▆▇█▇▆▇▇▆▇▇▇▆▇▆▆▇▇▆▆▆▆▆-84.03.045.060.0-6.0-546.0-48.0-211.076.033.070.066.034.053.062.0-19.078.0101.047.086.018.047.063.043.0-28.069.0198.0111.037.0108.043.010.0112.060.065.41.489.431.15.364.749.6-2.86.82.727.825.5
us-gaap:OtherIncome 6.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA-0.30.20.10.10.20.10.10.00.50.5NA
us-gaap:ProfitLoss ▆▇▇▇▇▁▆▄▇▇▇▇▇▇▇▆▇▇▇▇▇▇▇▇▆▇█▇▆▇▆▆▇▇▇▆▇▆▆▇▇▆▆▆▆▆-30.054.087.0112.048.0-549.02.0-177.0120.076.095.082.062.063.064.0-20.089.0101.080.0120.046.072.094.072.0-2.069.0203.0116.029.089.035.02.0106.055.067.31.979.824.04.565.951.2-2.49.13.326.832.4
 us-gaap:ProfitLoss us-gaap:ConsolidationItems us-gaap:CorporateNonSegment▇█▆▆▇▇▆▆▆▇▆▅▆▇▆▆▆▇▁▆▆▆-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:GatheringandProcessing▇▇▇▇▇▁▇▅▇▇▇█▇██▇████▇█4.028.086.051.012.0-644.013.0-146.091.068.090.097.077.0114.0136.029.0142.0152.0112.0134.057.0120.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:LogisticsandMarketing▂▄▅▇▅█▄▃▆▄▄▄▃▁▂▂▂▁▁▂▁▂109.0146.0158.0206.0177.0236.0149.0124.0185.0147.0152.0148.0130.079.088.099.092.087.085.0103.076.094.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee dpm:UnconsolidatedAffiliates█▁316.0298.0NANA318.0341.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerCapitalComponents us-gaap:NoncontrollingInterest▄▄1.01.0NA1.01.01.0NA1.01.01.01.01.01.01.04.00.01.00.05.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount dpm:SeriesAPreferredLimitedPartners█▁10.09.0NA9.010.09.0NA9.010.09.09.010.09.09.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount dpm:SeriesBPreferredLimitedPartners▄▄3.03.0NA3.03.03.0NA3.03.03.03.03.02.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount dpm:SeriesCPreferredLimitedPartnersMember▄▄2.02.0NA3.02.02.0NA3.02.02.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount us-gaap:LimitedPartner▁█-46.039.0NA96.032.0-564.0NA-228.062.020.039.026.010.012.014.0-59.047.059.044.089.014.041.059.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity,us-gaap:ProductOrService dpm:ThirdParty,dpm:NaturalGasNGLsandCondensate▄▇▂▂▁▂▄▃▃▆▇█▆▅1446.02014.01225.01204.01003.01171.01534.01353.01365.01771.01980.02191.01849.01744.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:Enbridge,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity▄▆▄▅▄▅▄▄▄▄▄▁██0.04.00.01.00.01.0-2.00.00.00.0-1.0-13.013.012.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty dpm:PhillipsSixtySix,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity█▆▅▂▁▂▃▂▃▃▄▆▄▃646.0527.0421.0247.0157.0212.0287.0237.0290.0326.0368.0483.0381.0302.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:AffiliatedEntity,dpm:NaturalGasNGLsandCondensate█▆▅▂▁▂▃▂▃▃▄▆▄▃667.0555.0435.0262.0169.0222.0296.0246.0294.0340.0386.0491.0408.0325.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty us-gaap:MajorityOwnedSubsidiaryUnconsolidated,dpm:NaturalGasNGLsandCondensate,srt:AffiliatedEntity▇█▄▄▄▃▃▃▁▄▆▇▄▃21.024.014.014.012.09.011.09.04.014.019.021.014.011.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities,us-gaap:ProductOrService,us-gaap:RelatedPartyTransactionsByRelatedParty us-gaap:MajorityOwnedSubsidiaryUnconsolidated,dpm:TransportationProcessingandOther,srt:AffiliatedEntity██▇▅▅▅▄▂▁▂▂▄▄▂5.05.04.03.03.03.02.01.00.01.01.02.02.01.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService dpm:NGLsandCondensate▅▄▂▂▁▂▃▃▃▄▅█▆▅1484.01329.01041.01007.0790.0946.01225.01081.01171.01415.01515.02093.01749.01489.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService dpm:TransportationProcessingandOther▆▅▆▃▃▃▄▁▃▄▅█▇▃125.0118.0125.0109.0109.0112.0113.0101.0110.0115.0118.0133.0127.0111.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService srt:NaturalGasReserves▃█▃▂▁▂▃▂▂▄▅▃629.01240.0619.0459.0382.0447.0605.0518.0488.0696.0851.0589.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:StatementBusinessSegments dpm:NGLsandCondensate,dpm:GatheringandProcessing▆▅▃▃▁▂▃▂▃▄▅█▆▅837.0710.0533.0456.0282.0387.0551.0437.0535.0648.0774.01053.0870.0740.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:StatementBusinessSegments dpm:NGLsandCondensate,dpm:LogisticsandMarketing▄▃▂▂▁▂▃▃▃▅▅█▆▅1323.01205.0977.0951.0758.0883.01134.01052.01155.01403.01482.02040.01714.01456.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:StatementBusinessSegments dpm:TransportationProcessingandOther,dpm:GatheringandProcessing█▅█▃▃▄▅▁▃▅112.0104.0111.097.098.099.0103.091.098.0103.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:StatementBusinessSegments dpm:TransportationProcessingandOther,dpm:LogisticsandMarketing▆██▆▁▆▁▁▃▃13.014.014.013.011.013.011.011.012.012.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:StatementBusinessSegments dpm:TransportationProcessingandOther,us-gaap:IntersegmentEliminationNANA0.0NANANA-1.0-1.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:StatementBusinessSegments srt:NaturalGasReserves,dpm:GatheringandProcessing▅█▅▂▁▂▄▃▃▆█▅489.0628.0457.0330.0271.0326.0440.0374.0363.0557.0642.0469.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:StatementBusinessSegments srt:NaturalGasReserves,dpm:LogisticsandMarketing▃█▃▂▁▂▃▂▂▄▅▃610.01120.0583.0437.0355.0411.0555.0461.0445.0637.0779.0530.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementBusinessSegments dpm:GatheringandProcessing112.0NANA97.098.0NANA91.098.0103.0NA118.0112.097.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementBusinessSegments dpm:LogisticsandMarketing13.0NANA13.011.0NANA11.012.012.0NA15.016.014.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementBusinessSegments us-gaap:IntersegmentEliminationNANANA-1.0NANANA-1.00.0NANA0.0-1.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues ▆▇▅▅▄▅▆▅▅▆██▇▆▇▆▆▆▁▁▁▁▂▂▂▂▃▃▃▃▃▂▂▂▂▁▁▂▁▁▁▂▁▁▁▁2085.02318.01785.01586.01274.01657.01929.01699.01798.02199.02607.02759.02317.02139.02337.02055.01949.02121.0398.0372.0348.0379.0435.0465.0430.0568.0881.0868.0812.01081.0802.0672.0775.0731.0450.5330.9413.7525.6387.2383.3374.2425.1348.4239.9277.5403.7
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▇▇▇▇▇▇██████████▇█▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁▁▁13300.013111.012957.012914.012946.013188.014127.014034.014033.014187.014266.014485.014041.013678.013878.013771.013570.013579.05161.05144.05302.05354.05477.05569.05583.05644.05739.05617.05468.05437.04526.04331.03939.03846.02972.02517.42333.52288.91903.61839.41795.01811.31813.2NANANA
us-gaap:Liabilities ██▇▇▇███▇▇▇█▇▇▇▇▇▇▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁7603.07279.07096.07032.07087.07272.07494.07219.06880.06974.06969.07209.06688.06366.06440.06728.06371.06329.02528.02468.02624.02600.02672.02737.02700.02638.02713.02752.02737.02726.02353.02198.02189.02205.01888.81375.91213.91228.41062.7979.1971.81000.5962.4NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇▇▇▇▇██████████▇█▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁▁▁13300.013111.012957.012914.012946.013188.014127.014034.014033.014187.014266.014485.014041.013678.013878.013771.013570.013579.05161.05144.05302.05354.05477.05569.05583.05644.05739.05617.05468.05437.04526.04331.03939.03846.02972.02517.42333.52288.91903.61839.41795.01811.31813.2NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent █▆▅▅▄▅▆▆▄▆▇█▇▅▇▇▆▅▁▁▂▁▂▂▂▂▃▃▃▃▃▂▂▂▂▁▁▂▁▁▁▁▁1522.01231.01008.0866.0802.0958.01080.01059.0823.01082.01271.01526.01282.01020.01322.01311.01065.0980.0227.0193.0319.0223.0306.0368.0361.0470.0590.0573.0486.0504.0503.0420.0420.0473.0309.1270.6254.7291.4239.9198.2188.3199.9232.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▁▂▁▁▁▁▁▁▁▁▁▁▁▄█▇▅▁▁▁▁▁▁▂▂▂▃▂▂▁▁▁▂▁▁▁▁▁▁▁▁5.05.052.014.012.018.01.02.01.01.01.01.04.02.0156.0312.0251.0176.01.02.01.01.02.01.024.033.025.097.057.027.012.01.09.037.01.38.45.56.16.72.02.45.0NA11.84.82.6
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▂█▃▄▆▁▁▁▁▁6.08.056.017.027.041.01.02.01.01.01.0NANANA156.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▆▆▅▅▄▄▆▆▄▆▇█▇▆▆▆▅▅▁▁▁▁▁▁▁▁▁▁▁▂▂▁▁▁▁▁▁▁▁▁▁▁▁780.0725.0572.0528.0488.0485.0726.0686.0511.0732.0860.0989.0824.0666.0773.0690.0559.0541.062.053.053.064.073.071.074.073.0106.092.094.0130.0130.093.0109.0115.095.072.655.970.191.870.366.481.189.3NANANA
us-gaap:InventoryNet ▄▂▃▁▁▁▄▅▄▄██▄▄▇▆▄▆▃▂▁▂▃▃▃▂▆▆▂▂▆▅▂▂▇▇▇▇▆▅▃▃▆52.030.038.028.028.026.046.055.046.052.079.077.047.051.068.062.051.064.044.034.029.037.043.040.039.036.063.064.032.033.067.054.036.030.074.771.674.069.064.757.442.442.164.1NANANA
us-gaap:OtherAssetsCurrent ▄▃▃▃▅▅▂▄▄▃▃▃▃▂▂▃▃█▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁26.016.021.018.030.030.012.024.023.016.016.017.019.010.012.017.018.058.010.02.03.01.02.03.02.02.02.04.02.02.03.03.02.02.02.42.91.51.31.92.71.61.42.1NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsNoncurrent ▇▇▇▇▇▇████████████▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁11778.011880.011949.012048.012144.012230.013047.012975.013210.013105.012995.012959.012759.012658.012556.012460.012505.012599.04934.04951.04983.05131.05171.05201.05222.05174.05149.05044.04982.04933.04023.03911.03519.03373.02662.92246.82078.81997.51663.71641.21606.7NA1581.2NANANA
us-gaap:PropertyPlantAndEquipmentGross ▇▇▇▇▇▇████████████▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁13393.013425.013420.013387.013368.013342.014504.014584.014879.014786.014724.015000.014823.014689.014532.014381.014380.014434.04540.04526.04517.04850.04850.04828.04791.04664.04611.04512.04420.04333.04156.04088.03784.03690.02479.12413.72305.92265.81719.01656.01615.1NA1559.9NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▇█████████▇▇▇▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁5556.05512.05427.05341.05252.05162.05693.05713.05771.05676.05589.05837.05743.05649.05549.05455.05430.05387.01268.01242.01215.01404.01374.01345.01317.01290.01264.01238.01213.01187.01151.01128.01105.01084.0751.7739.9727.2719.7537.2518.3499.8NA462.8NANANA
us-gaap:PropertyPlantAndEquipmentNet ▇▇▇▇▇▇████████████▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁▁7837.07913.07993.08046.08116.08180.08811.08871.09108.09110.09135.09163.09080.09040.08983.08926.08950.09047.03272.03284.03302.03446.03476.03483.03474.03374.03347.03274.03207.03146.03005.02960.02679.02606.01727.41673.81578.71546.11181.81137.71115.31120.61097.1NANANA
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures █████████▇▇▇▇▇▇▇▇▇▄▄▄▄▄▄▄▄▄▄▄▄▂▂▂▁▂▁▁▁▁▁▁▁▁3601.03640.03641.03668.03696.03681.03724.03611.03581.03460.03340.03277.03165.03105.03050.03002.02994.02988.01475.01474.01481.01486.01493.01490.01485.01481.01459.01434.01426.01410.0627.0532.0384.0326.0558.0229.0147.1108.5208.7222.2218.5216.0216.9NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▁▁▁▁▁▁▂▂▃▃▅▅▅▅▅▆▇▇▅▅▆▆▆▆▆▆▆▇▇▇▇▇▇▇████▆▆▆▆▆42.043.044.046.047.048.061.063.065.077.097.099.0101.0104.0106.0109.0132.0135.0103.0105.0108.0110.0112.0113.0115.0117.0120.0122.0124.0127.0129.0131.0133.0135.0136.9139.0141.1143.2113.9115.4117.0117.8119.3NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▆▇▆▇▇█▇▆▆▁88.079.085.083.091.098.0107.091.069.078.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ██▇▇▇▇▇▇█▇▇▇▇▇▇███▁▁▁▁▁▂▂▂▂▂▂▂▁▁200.0188.0170.0165.0165.0170.0183.0176.0188.0184.0184.0170.0174.0177.0183.0188.0193.0189.012.013.015.010.09.026.028.028.030.027.029.027.021.022.0NANA20.0NANA14.711.17.17.37.17.2NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ContractWithCustomerLiabilityCurrent NANA3.03.0NANA1.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▆▆▆▅▃▃▆▆▆█▆█▆▆▅▆▅▅▃▁▁▁▁▂▂▂▂▂▂▂▃▂▂▂▁▁▁▁▁▃▃▁▁1808.01744.01621.01413.0812.0966.01793.01692.01803.02404.01904.02333.01887.01723.01488.01784.01435.01390.0734.0190.0212.0175.0200.0510.0490.0525.0601.0393.0379.0374.0722.0358.0410.0424.0233.4295.7226.5304.5269.2692.0653.6239.8211.2NANANA
us-gaap:LongTermDebtCurrent ▃▄▄▄▁▁▅▅▆█▄▄▃▄▁▄▄▄▄350.0500.0500.0500.00.00.0600.0600.0800.01125.0525.0525.0325.0450.00.0500.0500.0500.0500.0NANANA0.0250.0250.0250.0250.0NANANA0.0NANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent █▁██▁▁█24.023.024.024.023.023.024.0NANA18.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▆▆▇▅▆█▇▆▆▅▅▄▆▄▆▆▆▄▂▁▂▁▂▂▅▃▅▂▃▃▃▂▄▃▂▄▃▃▂▃▂▁▂107.0107.0122.098.0102.0148.0128.0108.0102.096.0100.079.0108.073.0103.0106.0106.073.029.026.045.017.034.045.094.047.085.031.054.050.060.037.068.058.038.868.254.345.438.661.538.025.831.5NANANA
us-gaap:TaxesPayableCurrent ▅▆▅▆▅▆▆▇▅▆▆▇▅▆▅█▆▆▂▂▂▂▁▂60.068.059.068.052.069.065.074.057.065.064.081.060.064.058.088.066.068.019.028.023.018.012.026.0NANA9.026.0NANA8.020.0NANA5.0NANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee dpm:UnconsolidatedAffiliates▁█▃257.0260.0258.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▇▇▇▇██▇▇▇▆▇▆▆▆▇▇▇▇▃▃▄▄▄▃▃▃▃▄▄▄▃▃▃▃▃▂▂▂▂▁▁▂▁5388.05178.05119.05244.05897.05921.05321.05165.04750.04236.04782.04575.04510.04358.04707.04711.04710.04709.01750.02231.02367.02377.02424.02179.02162.02062.02061.02311.02310.02310.01590.01801.01740.01739.01620.31038.3948.3865.2746.8249.8249.8675.8647.8NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▄▄▄▄▄▄▄████▃▃▃▃▄▃▁▁30.030.030.030.030.030.030.032.032.032.032.029.029.029.029.030.029.028.028.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ███▇▇▇█▇▇▇█▇▇▇▆▆▆▆▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▂259.0243.0243.0240.0235.0226.0242.0236.0233.0231.0243.0235.0233.0232.0201.0193.0190.0195.044.047.045.048.047.048.048.051.051.046.042.041.040.036.036.036.027.428.322.522.216.516.015.815.753.1NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▇▇▇▇██▇▆▆▁78.071.076.076.076.083.088.074.057.066.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▁▁▆27.024.024.026.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree █▁▁▅24.019.019.022.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ▄▁▁█15.012.012.018.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive ▆▁▁█10.08.08.011.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive ▂▁▂█24.023.024.030.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax █████████████▇▇▇▇▇████████▇▇▇▇▇▆▆▆▅▅▅▄▃▃▃▂▁-7.0-7.0-7.0-7.0-7.0-7.0-7.0-8.0-8.0-8.0-8.0-8.0-8.0-9.0-9.0-9.0-9.0-9.0-8.0-8.0-8.0-8.0-8.0-8.0-8.0-8.0-9.0-9.0-9.0-9.0-11.0-12.0-13.0-14.0-14.7-15.5-16.8-19.2-21.2-22.8-22.5-23.3-27.7NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:DerivativeInstrumentRisk,us-gaap:PartnerCapitalComponents us-gaap:InterestRateSwap,us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges███████▄▄▄▄▄▄▁▁▁▁▁▄-2.0-2.0-2.0-2.0-2.0-2.0-2.0-3.0-3.0-3.0-3.0-3.0-3.0-4.0-4.0-4.0-4.0-4.0-3.0NANANA-3.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:PartnerCapitalComponents us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges███████▄▄▄▄▄▄▁▁▁▁▁▄-7.0-7.0-7.0-7.0-7.0-7.0-7.0-8.0-8.0-8.0-8.0-8.0-8.0-9.0-9.0-9.0-9.0-9.0-8.0NANANA-8.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▄▄1.01.0NA1.01.01.0NA1.0-2.01.02.01.0-1.01.01.02.02.02.02.02.01.02.01.02.01.01.02.01.01.010.08.06.05.05.04.02.0NANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▂█▇▆█▆▃▆█▄▆▆▄▆█▆▄▄▄▄▅▅▄▅▅▃▄▅▅▃▂▄▅▁▃▂▃▃▃▂▃▂▃▂▃72.0-4.0308.0268.0209.0314.0222.091.0229.0317.0121.0210.0209.0122.0212.0324.0216.0144.0120.0135.0132.0188.0157.0143.0162.0188.089.0135.0154.0146.060.0-6.0123.0147.0-33.987.210.661.055.260.324.664.02.847.236.053.7
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▇▇▇▆▆▆▆▆▅▅▆▆▆▆▇▇▇█▇▇▇▇▆▇▆▆▆▁▆▄▆▃▄▆▇▅▇▇▇▆▆▇▇▇-27.0-14.0-34.0-33.0-89.0-103.0-175.0-139.0-236.0-210.0-255.0-299.0-210.0-181.0-193.0-127.0-3.0-68.0-14.0125.01.0-18.0-44.0-59.0-150.0-90.0-120.0-118.0-102.0-896.0-178.0-441.0-160.0-608.0-427.7-210.1-67.5-365.2-41.4-46.7-20.9-165.0-113.0-92.3-38.0-24.6
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▃▁▁▂▂▂▃▃▂▄▃▃▂▂▂▂▃▂▁▂▂▂▂▃▂▂▃▃█▄▆▃▆▆▄▃▅▃▃▃▃▃▃▃▃-47.0-30.0-235.0-245.0-134.0-171.0-48.049.07.0-107.0134.086.03.0-95.0-175.0-136.0-138.099.0-107.0-259.0-133.0-171.0-112.0-107.0-21.0-90.0-41.023.0-22.0765.0129.0439.09.0496.0454.5125.856.3302.7-9.1-14.0-6.399.3105.152.14.2-28.6
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:IncreaseDecreaseInAccountsReceivable ▃▁▂▃▄▇█▆▁▃▂▆▆▂▅▆▄▂▄▄▄▄▃▄▃▃▃▄▃▄▅▄▃▅▄▄▃▃▄▄▄▄▄▄▄▃-118.0-245.0-123.0-77.0-20.0282.0371.0172.0-255.0-118.0-201.0206.0211.0-161.0135.0157.040.0-138.023.0-7.06.0-19.0-36.028.0-41.0-61.0-38.0-4.0-40.014.064.0-1.0-53.079.053.511.5-39.8-55.134.6-6.3-17.1-0.546.3-4.3-15.9-31.9
us-gaap:IncreaseDecreaseInInventories ▃▆▄▅▅▇▇▆▅▄▅█▅▄▆▆▄▄▆▅▅▅▅▅▅▃▅█▅▂▆▇▆▁▅▅▆▃▆▆▅▃█▅▃▆-22.08.0-10.00.0-3.016.019.09.0-5.0-14.02.030.0-4.0-17.06.011.0-13.0-8.010.03.0-6.0-6.03.01.03.0-27.0-1.032.0-1.0-34.013.017.07.0-46.03.0-2.45.1-19.07.315.00.3-22.027.7-4.4-23.58.9
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▁▁▅▅▃▆▄▄▅▂█▄▅▂▄▃▆▃-138.0-138.047.031.0-38.070.0-23.0-19.041.0-103.0167.0-11.018.0-110.0-17.0-32.088.0-32.0NANANANANANANANANANANANANANANANANANA-11.712.6-12.3-14.419.3-0.18.1-7.9-3.70.9
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▂█▇▆█▆▃▆█▄▆▆▄▆█▆▄▄▄▄▅▅▄▅▅▃▄▅▅▃▂▄▅▁▃▂▃▃▃▂▃▂▃▂▃72.0-4.0308.0268.0209.0314.0222.091.0229.0317.0121.0210.0209.0122.0212.0324.0216.0144.0120.0135.0132.0188.0157.0143.0162.0188.089.0135.0154.0146.060.0-6.0123.0147.0-33.987.210.661.055.260.324.664.02.847.236.053.7
us-gaap:NetIncomeLoss ▆▇▇▇▇▁▆▄▇▇▇▇▇▇▇▆▇▇▇▇▇▇▇▇▆▇█▇▆▇▆▆▇▇▇▆▇▆▆▇▇▆▆▆▆▆-31.053.086.0111.047.0-550.01.0-178.0119.075.094.081.061.062.060.0-20.088.0101.075.0120.045.072.090.071.0-2.069.0199.0116.029.079.028.0-1.0102.052.064.31.379.123.3-1.566.341.5-5.94.30.025.832.3
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems us-gaap:CorporateNonSegment▇█▆▆▇▇▆▆▆▇▆▅▆▇▆▆▆▇▁▆▆▆-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:GatheringandProcessing▇▇▇▇▇▁▇▅▇▇▇█▇██▇████▇█3.027.085.050.011.0-645.012.0-147.090.067.089.096.076.0113.0132.029.0141.0152.0107.0134.056.0120.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:LogisticsandMarketing▂▄▅▇▅█▄▃▆▄▄▄▃▁▂▂▂▁▁▂▁▂109.0146.0158.0206.0177.0236.0149.0124.0185.0147.0152.0148.0130.079.088.099.092.087.085.0103.076.094.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▆▇▇▇▇▁▆▄▇▇▇▇▇▇▇▆▇▇▇▇▇▇▇▇▆▇█▇▆▇▆▆▇▇▇▆▇▆▆▇▇▆▆▆▆▆-30.054.087.0112.048.0-549.02.0-177.0120.076.095.082.062.063.064.0-20.089.0101.080.0120.046.072.094.072.0-2.069.0203.0116.029.089.035.02.0106.055.067.31.979.824.04.565.951.2-2.49.13.326.832.4
 us-gaap:ProfitLoss us-gaap:ConsolidationItems us-gaap:CorporateNonSegment▇█▆▆▇▇▆▆▆▇▆▅▆▇▆▆▆▇▁▆▆▆-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:GatheringandProcessing▇▇▇▇▇▁▇▅▇▇▇█▇██▇████▇█4.028.086.051.012.0-644.013.0-146.091.068.090.097.077.0114.0136.029.0142.0152.0112.0134.057.0120.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,dpm:LogisticsandMarketing▂▄▅▇▅█▄▃▆▄▄▄▃▁▂▂▂▁▁▂▁▂109.0146.0158.0206.0177.0236.0149.0124.0185.0147.0152.0148.0130.079.088.099.092.087.085.0103.076.094.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee dpm:UnconsolidatedAffiliates█▁316.0298.0NANA318.0341.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerCapitalComponents us-gaap:NoncontrollingInterest▄▄1.01.0NA1.01.01.0NA1.01.01.01.01.01.01.04.00.01.00.05.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount dpm:SeriesAPreferredLimitedPartners█▁10.09.0NA9.010.09.0NA9.010.09.09.010.09.09.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount dpm:SeriesBPreferredLimitedPartners▄▄3.03.0NA3.03.03.0NA3.03.03.03.03.02.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount dpm:SeriesCPreferredLimitedPartnersMember▄▄2.02.0NA3.02.02.0NA3.02.02.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount us-gaap:LimitedPartner▁█-46.039.0NA96.032.0-564.0NA-228.062.020.039.026.010.012.014.0-59.047.059.044.089.014.041.059.0NANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▇▇▇▆▆▆▆▆▅▅▆▆▆▆▇▇▇█▇▇▇▇▆▇▆▆▆▁▆▄▆▃▄▆▇▅▇▇▇▆▆▇▇▇-27.0-14.0-34.0-33.0-89.0-103.0-175.0-139.0-236.0-210.0-255.0-299.0-210.0-181.0-193.0-127.0-3.0-68.0-14.0125.01.0-18.0-44.0-59.0-150.0-90.0-120.0-118.0-102.0-896.0-178.0-441.0-160.0-608.0-427.7-210.1-67.5-365.2-41.4-46.7-20.9-165.0-113.0-92.3-38.0-24.6
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▁▂▂▂▃▅▅▆█▇▇▆▆▅▅▅▃▁▂▂▁▂▃▆▃▄▄▄▃▄▄▄▅▃▃▃▃▃▁▁▁▁▁▁▁27.014.035.023.033.069.0105.0106.0126.0182.0167.0160.0144.0124.0117.099.0111.048.09.030.026.010.036.051.0129.065.092.095.088.063.086.082.094.0101.047.952.746.453.457.817.215.513.713.611.713.212.2
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▃▁▁▂▂▂▃▃▂▄▃▃▂▂▂▂▃▂▁▂▂▂▂▃▂▂▃▃█▄▆▃▆▆▄▃▅▃▃▃▃▃▃▃▃-47.0-30.0-235.0-245.0-134.0-171.0-48.049.07.0-107.0134.086.03.0-95.0-175.0-136.0-138.099.0-107.0-259.0-133.0-171.0-112.0-107.0-21.0-90.0-41.023.0-22.0765.0129.0439.09.0496.0454.5125.856.3302.7-9.1-14.0-6.399.3105.152.14.2-28.6
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▆▅▂▃▅█▅▅█▆▆▇▅▃▁▁▁▁▃▂▃▂▃▂▂▂▁▁▁▃▁▃▂▄▅▂▂▃▃▁▂▃▂▂▁▁1465.01143.0449.0555.01252.02151.01266.01248.02055.01402.01541.01817.01168.0635.0116.00.00.00.0503.0417.0658.0394.0732.0372.0288.0162.00.00.00.0719.0131.0747.0270.0809.01311.4345.0286.0722.4692.0116.0169.0547.0210.0447.694.0116.6
us-gaap:RepaymentsOfLongTermDebt ▆▅▃▃▅█▅▄▇▅▅▆▅▃▃▁▁▂▃▃▃▂▃▂▂▂▁▁▁▁▂▃▂▃▃▂▂▃▃▁▁▃▂▂▁▁1406.01086.0576.0713.01272.02152.01126.01038.01860.01348.01335.01547.01143.0535.0616.00.00.0195.0487.0554.0669.0442.0723.0356.0188.0162.00.00.00.00.0342.0686.0270.0690.0729.5255.0203.0604.0671.0101.0134.0519.0175.0449.894.0114.6
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302020-03-31
Value593360.0350820.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-31.0538611147-550.02.0-178.0119759481626260-20.0881027512045729071-2.0701991162981290.010353652.681280.16643-1.59.80.52530
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.52.34.87.03.7-33.20.1-10.56.63.43.62.92.72.92.6-1.04.54.818.832.312.919.020.715.3-0.512.322.613.43.67.53.60.013.37.314.50.819.75.50.017.211.5-0.42.80.29.27.6

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.01.01.01.01.01.01.01.01.01.01.01.01.01.04.00.01.00.05.00.01.00.04.01.00.00.04.00.00.010.07.03.04.03.03.00.60.70.76.0-0.49.73.54.83.31.00.1
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.00.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.00.00.10.10.10.10.10.10.10.00.00.00.00.00.20.00.10.01.30.00.30.00.90.20.00.00.50.00.00.90.90.40.50.40.70.20.20.11.5-0.12.60.81.41.40.40.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-30.0548711248-549.03.0-177.0120769582636364-20.0891028012046729472-2.0702031162991363.010756683.282296.165522.0143.82630
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.42.34.97.13.8-33.10.2-10.46.73.53.63.02.72.92.7-1.04.64.820.132.313.219.021.615.5-0.512.323.013.43.68.44.50.413.87.715.11.019.95.61.617.114.10.54.21.69.67.6

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity, us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

dpm:ThirdParty, dpm:NaturalGasNGLsandCondensate


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value15401763108894472387212751041108415331742207417031604
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues73.976.161.059.556.852.666.161.360.369.766.875.273.575.0
Percentage of Revenues dpm:ThirdParty dpm:NaturalGasNGLsandCondensate0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty

dpm:Enbridge, dpm:NaturalGasNGLsandCondensate, srt:AffiliatedEntity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.07.0182.00.00.07.06.07.07.0
Percentage of CostOfGoodsAndServicesSold0.50.41.70.20.00.00.50.60.60.5
Percentage of Revenues0.40.31.00.10.00.00.40.40.40.3
Percentage of Revenues dpm:Enbridge dpm:NaturalGasNGLsandCondensate srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.0

dpm:Enbridge, dpm:TransportationProcessingandOther, srt:AffiliatedEntity


Cost
Period End2020-12-312020-09-302019-12-31
Value0.01.00.0
Percentage of CostOfGoodsAndServicesSold0.00.10.0
Percentage of Revenues0.00.10.0
Percentage of Revenues dpm:Enbridge dpm:TransportationProcessingandOther srt:AffiliatedEntity0.00.00.0

dpm:PhillipsSixtySix, dpm:NaturalGasNGLsandCondensate, srt:AffiliatedEntity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1930441510.0272833
Percentage of CostOfGoodsAndServicesSold1.21.74.01.61.43.12.23.2
Percentage of Revenues0.91.32.50.90.81.61.51.9
Percentage of Revenues dpm:PhillipsSixtySix dpm:NaturalGasNGLsandCondensate srt:AffiliatedEntity0.00.00.00.00.00.00.00.0

dpm:PhillipsSixtySix, dpm:TransportationProcessingandOther, srt:AffiliatedEntity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value37374326212320191414
Percentage of CostOfGoodsAndServicesSold2.42.14.02.82.92.61.61.81.30.9
Percentage of Revenues1.81.62.41.61.61.41.01.10.80.6
Percentage of Revenues dpm:PhillipsSixtySix dpm:TransportationProcessingandOther srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities, us-gaap:ProductOrService

srt:AffiliatedEntity, dpm:NaturalGasNGLsandCondensate


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value475577322136279267272271253253225165
Percentage of CostOfGoodsAndServicesSold3.13.17.13.42.94.121.925.625.117.714.512.213.210.3
Percentage of Revenues2.32.44.32.01.62.214.515.715.112.39.79.29.77.7
Percentage of Revenues srt:AffiliatedEntity dpm:NaturalGasNGLsandCondensate0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:AffiliatedEntity, dpm:TransportationFees


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value252219240242230238233220204209
Percentage of CostOfGoodsAndServicesSold16.412.422.125.631.827.318.321.118.813.6
Percentage of Revenues12.19.413.415.318.114.412.112.911.39.5
Percentage of Revenues srt:AffiliatedEntity dpm:TransportationFees0.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:MajorityOwnedSubsidiaryUnconsolidated, dpm:NaturalGasNGLsandCondensate, srt:AffiliatedEntity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value20181515119.0268.01124
Percentage of CostOfGoodsAndServicesSold1.31.01.41.61.51.02.00.81.01.6
Percentage of Revenues1.00.80.80.90.90.51.30.50.61.1
Percentage of Revenues us-gaap:MajorityOwnedSubsidiaryUnconsolidated dpm:NaturalGasNGLsandCondensate srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.0

us-gaap:MajorityOwnedSubsidiaryUnconsolidated, dpm:TransportationProcessingandOther, srt:AffiliatedEntity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value215182197215209215198201190195
Percentage of CostOfGoodsAndServicesSold14.010.318.122.828.924.715.519.317.512.7
Percentage of Revenues10.37.911.013.616.413.010.311.810.68.9
Percentage of Revenues us-gaap:MajorityOwnedSubsidiaryUnconsolidated dpm:TransportationProcessingandOther srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value216923151740152612802203197719101722216625372693228320862275207418712020351286330332372422458499683757775973759662663671385329324494381318324427341237249378
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues104.099.997.596.2100.5133.0102.5112.495.898.597.397.698.597.597.3100.996.095.288.276.994.887.685.590.8106.587.977.587.295.490.094.698.585.591.885.599.678.494.198.683.186.7100.798.098.990.093.7

Disposal Group Not Discontinued Operation Gain Loss On Disposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal


Disposal
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-30
Value1.00.00.0660.05.0-9.00.00.00.00.00.00.0340.0-47.0-6.00.00.0
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.00.00.0100.00.0100.0100.00.00.00.00.00.00.0100.00.0100.0100.00.00.0
Percentage of Revenues0.00.00.03.40.00.3-0.40.00.00.00.00.00.01.70.0-12.6-1.70.00.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Disposal
Period End2021-06-302019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-30
Value-1.0668.0-4.00.00.00.0340.025-6.0
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal-100.0100.00.0-80.0-0.00.00.0100.00.0-53.2100.0
Percentage of Revenues-0.03.40.5-0.20.00.00.01.70.06.7-1.7
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing-0.10.00.9-0.40.00.00.02.70.02.1-0.6

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5738806651567466686777707059886971622422212121212221161715161515161611113.64.65.44.63.74.23.93.33.43.7
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.71.64.54.24.03.43.83.93.83.03.02.53.02.83.83.43.62.96.05.96.05.54.84.55.13.71.82.01.81.51.92.22.12.22.63.40.90.91.41.21.01.01.11.41.20.9

us-gaap:GeneralAndAdministrativeExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value5133705746516659-61.058676165528164625399605555
Percentage of GeneralAndAdministrativeExpense89.586.887.586.490.291.189.289.4-89.786.687.087.192.988.192.092.887.385.5412.5272.7261.9261.9
Percentage of Revenues2.41.43.93.63.63.13.43.5-3.42.62.62.22.82.43.53.13.22.524.916.115.814.5
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value4.04.07.08.04.03.06.05.0-6.06.07.06.02.04.04.02.07.06.04.02.04.04.0
Percentage of GeneralAndAdministrativeExpense7.010.58.812.17.85.48.17.6-8.89.09.18.62.96.84.52.99.99.716.79.119.019.0
Percentage of Revenues0.20.20.40.50.30.20.30.3-0.30.30.30.20.10.20.20.10.40.31.00.51.11.1
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing0.30.30.00.90.60.30.00.5-0.60.50.00.40.20.30.00.10.60.40.00.20.40.4

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2.01.03.01.01.02.02.02.0-1.03.03.03.03.03.03.03.02.03.02.02.02.03.0
Percentage of GeneralAndAdministrativeExpense3.52.63.81.52.03.62.73.0-1.54.53.94.34.35.13.44.32.84.88.39.19.514.3
Percentage of Revenues0.10.00.20.10.10.10.10.1-0.10.10.10.10.10.10.10.10.10.10.50.50.60.8
Percentage of Revenues us-gaap:OperatingSegments dpm:LogisticsandMarketing0.10.00.00.10.10.10.00.1-0.10.10.00.10.10.20.00.20.10.20.00.10.10.2

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2462813803683005113753914423956124323893703913603924341441421171481781841241663072081361961471052021451226213994641269971543971
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.812.121.323.223.530.819.423.024.618.023.515.716.817.316.717.520.120.536.238.233.639.140.939.628.829.234.824.016.718.118.315.626.119.827.219.033.718.016.532.926.716.915.616.525.9

us-gaap:GrossProfit us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value239245315280231400328330354337529364333352356303342376335335288269
Percentage of GrossProfit97.287.282.976.177.078.387.584.480.185.386.484.385.695.191.084.287.286.6232.6235.9246.2181.8
Percentage of Revenues11.510.617.617.718.124.117.019.419.715.320.313.214.416.515.214.717.517.784.290.182.871.0
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing18.218.60.032.737.443.80.036.034.626.20.023.125.327.40.022.727.027.70.027.527.828.7

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.03665886911147618858836856183557505853514160
Percentage of GrossProfit2.812.817.123.923.021.712.515.619.914.713.615.714.44.99.015.812.813.436.835.935.040.5
Percentage of Revenues0.31.63.65.55.46.72.43.64.92.63.22.52.40.81.52.82.62.713.313.711.815.8
Percentage of Revenues us-gaap:OperatingSegments dpm:LogisticsandMarketing0.41.70.06.16.08.20.04.05.52.80.02.62.60.90.03.02.83.00.03.12.84.7

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-30.0548511348-548.0-1.0-176.0120779682636461-18.0911027912047729272-6.0702031183092413.010656672.280244.766573.88.93.4
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.42.34.87.13.8-33.1-0.1-10.46.73.53.73.02.73.02.6-0.94.74.819.832.313.519.021.115.5-1.412.323.013.63.78.55.10.413.77.714.90.719.44.61.217.215.40.92.61.4

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.00.0-1.03.0-1.00.01.01.00.01.01.0-3.02.02.01.0-1.00.01.00.0-2.00.0-4.01.00.02.01.03.06.01.00.01.00.00.30.50.20.20.20.20.2-0.20.10.10.3
Percentage of IncomeTaxExpenseBenefit100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.10.0-0.10.2-0.10.00.00.00.00.00.0-0.10.10.10.0-0.30.00.30.0-0.50.0-0.90.20.00.20.10.30.70.10.00.10.00.10.10.00.10.10.10.0-0.10.00.00.1

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.00.0-1.03.0-1.0-2.01.01.00.01.01.0-3.02.02.01.0401.03.02.0
Percentage of IncomeTaxExpenseBenefit100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0-4000.00.0300.00.0
Percentage of Revenues-0.10.0-0.10.2-0.1-0.10.00.00.00.00.0-0.10.10.10.010.10.30.90.5
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302012-12-312012-09-302011-12-312011-09-302010-12-312010-09-30
Value1.02.00.00.00.00.00.00.00.00.0-1.00.00.00.00.00.0-0.10.10.00.00.00.0
Percentage of IncomeTaxesPaidNet100.0100.00.00.00.00.00.00.00.00.0100.00.00.00.00.00.0100.0100.00.00.00.00.0
Percentage of Revenues0.10.10.00.00.00.00.00.00.00.0-0.20.00.00.00.00.0-0.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7777767771788379-73.069666967677073737323232424232522222222231912141412108.111128.98.68.48.07.17.57.37.2
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.73.34.34.95.64.74.34.6-4.13.12.52.52.93.13.03.63.73.45.86.26.96.35.35.45.13.92.52.52.81.81.52.11.81.62.32.42.72.42.32.22.21.92.03.12.61.8

us-gaap:InterestExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7777767771788379-73.069666967677073737386777979
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0373.9334.8329.2329.2
Percentage of Revenues3.73.34.34.95.64.74.34.6-4.13.12.52.52.93.13.03.63.73.421.620.722.720.8
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value678961736188548950656763458472755687311131113510.0338.0349.02010.0158.0161.0151.04.51.59.85.21.01.21.13.5
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.23.83.44.64.85.32.85.22.83.02.62.31.93.93.13.62.94.17.83.08.92.98.02.27.71.43.91.02.50.91.91.22.10.13.50.31.10.32.51.40.30.30.31.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-31.0538611147-550.01.0-178.0119759481616260-20.0881017512045729071-2.069199116297928-1.010252641.37923-1.56641-5.94.30.02532
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of Revenues-1.52.34.87.03.7-33.20.1-10.56.63.43.62.92.62.92.6-1.04.54.818.832.312.919.020.715.3-0.512.122.613.43.67.33.5-0.113.27.114.30.419.14.4-0.417.311.1-1.41.20.09.38.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0
Percentage of NetIncomeLoss461.3-226.4-182.6-130.6-300.025.6-16000.087.1-131.1-185.3-156.4-201.2-237.7-209.7-266.7740.0-164.8-136.6-314.7-123.3-342.2-206.9
Percentage of Revenues-6.9-5.2-8.8-9.1-11.1-8.5-8.3-9.1-8.7-6.3-5.6-5.9-6.3-6.1-6.8-7.2-7.4-6.5-59.3-39.8-44.3-39.3
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3.027855011-645.012-147.090678996761131322914115210713456120
Percentage of NetIncomeLoss-9.750.998.845.023.4117.31200.082.675.689.394.7118.5124.6182.3220.0-145.0160.2150.5142.7111.7124.4166.7
Percentage of Revenues0.11.24.83.20.9-38.90.6-8.75.03.03.43.53.35.35.61.47.27.226.936.016.131.7
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing0.22.10.05.81.8-70.60.0-16.08.85.20.06.15.88.80.02.211.111.20.011.05.412.8

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1091461582061772361491241851471521481307988999287851037694
Percentage of NetIncomeLoss-351.6275.5183.7185.6376.6-42.914900.0-69.7155.5196.0161.7182.7213.1127.4146.7-495.0104.586.1113.385.8168.9130.6
Percentage of Revenues5.26.38.913.013.914.27.77.310.36.75.85.45.63.73.84.84.74.121.427.721.824.8
Percentage of Revenues us-gaap:OperatingSegments dpm:LogisticsandMarketing5.77.00.014.315.417.40.08.211.57.20.05.75.94.00.05.25.24.50.06.35.27.4

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.01.01.01.01.01.01.01.01.01.01.01.01.01.04.00.01.00.05.00.01.00.04.01.00.00.04.00.00.010.07.03.04.03.03.00.60.70.76.0-0.49.73.54.83.31.00.1
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.00.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.00.00.10.10.10.10.10.10.10.00.00.00.00.00.20.00.10.01.30.00.30.00.90.20.00.00.50.00.00.90.90.40.50.40.70.20.20.11.5-0.12.60.81.41.40.40.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1.01.01.01.01.01.01.01.01.01.01.01.01.01.04.00.01.00.05.00.01.00.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.00.0
Percentage of Revenues0.00.00.10.10.10.10.10.10.10.00.00.00.00.00.20.00.10.01.30.00.30.0
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing0.10.10.00.10.20.10.00.10.10.10.00.10.10.10.00.00.10.00.00.00.10.0

Operating Expenses

us-gaap:OperatingExpenses us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:OperatingExpenses

dpm:UnconsolidatedAffiliates


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value210190191185
Percentage of OperatingExpenses100.0100.0100.0100.0
Percentage of Revenues10.18.215.011.2
Percentage of Revenues dpm:UnconsolidatedAffiliates39.838.937.535.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-84.03.04560-6.0-546.0-48.0-211.076337066345362-19.078101478618476343-28.069198111371084310.011260651.489315.36449-2.86.82.72725
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-4.00.12.53.8-0.5-33.0-2.5-12.44.21.52.72.41.52.52.7-0.94.04.811.823.15.212.414.59.2-6.512.122.512.84.610.05.41.514.58.214.50.421.65.91.416.913.3-0.72.01.110.06.3

Other Income

us-gaap:OtherIncome

us-gaap:OtherIncome


Other
Period End2021-06-302012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value6000000.0-300000.0200000.0100000.0100000.0200000.0100000.0100000.00500000.0500000.0
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of Revenues0.3-0.10.00.00.00.10.00.00.00.20.2

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-30.0548711248-549.02.0-177.0120769582626364-20.0891018012046729472-2.0692031162989352.010655671.979244.56551-2.49.13.32632
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.42.34.97.13.8-33.10.1-10.46.73.53.63.02.72.92.7-1.04.64.820.132.313.219.021.615.5-0.512.123.013.43.68.24.40.313.77.514.90.619.34.61.217.213.7-0.62.61.49.78.0

us-gaap:ProfitLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0
Percentage of ProfitLoss476.7-222.2-180.5-129.5-293.825.7-8000.087.6-130.0-182.9-154.7-198.8-233.9-206.3-250.0740.0-162.9-136.6-295.0-123.3-334.8-206.9
Percentage of Revenues-6.9-5.2-8.8-9.1-11.1-8.5-8.3-9.1-8.7-6.3-5.6-5.9-6.3-6.1-6.8-7.2-7.4-6.5-59.3-39.8-44.3-39.3
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value4.028865112-644.013-146.091689097771141362914215211213457120
Percentage of ProfitLoss-13.351.998.945.525.0117.3650.082.575.889.594.7118.3124.2181.0212.5-145.0159.6150.5140.0111.7123.9166.7
Percentage of Revenues0.21.24.83.20.9-38.90.7-8.65.13.13.53.53.35.35.81.47.37.228.136.016.431.7
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing0.32.10.06.01.9-70.50.0-15.98.95.30.06.15.98.90.02.211.211.20.011.05.512.8

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1091461582061772361491241851471521481307988999287851037694
Percentage of ProfitLoss-363.3270.4181.6183.9368.8-43.07450.0-70.1154.2193.4160.0180.5209.7125.4137.5-495.0103.486.1106.285.8165.2130.6
Percentage of Revenues5.26.38.913.013.914.27.77.310.36.75.85.45.63.73.84.84.74.121.427.721.824.8
Percentage of Revenues us-gaap:OperatingSegments dpm:LogisticsandMarketing5.77.00.014.315.417.40.08.211.57.20.05.75.94.00.05.25.24.50.06.35.27.4

us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

dpm:UnconsolidatedAffiliates


Profit
Period End2021-06-302021-03-312020-06-302020-03-31
Value316298318341
Percentage of ProfitLoss-1053.3551.9662.5-62.1
Percentage of Revenues15.212.925.020.6
Percentage of Revenues dpm:UnconsolidatedAffiliates59.860.962.464.7

us-gaap:ProfitLoss us-gaap:PartnerCapitalComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1.01.01.01.01.01.01.01.01.01.01.01.04.00.01.00.05.00.0
Percentage of ProfitLoss-3.31.90.92.1-0.2-0.60.81.31.11.21.61.66.2-0.01.10.06.20.0
Percentage of Revenues0.00.00.10.10.10.10.10.00.00.00.00.00.20.00.10.01.30.0
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount

dpm:SeriesAPreferredLimitedPartners


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10.09.09.010.09.09.010.09.09.010.09.09.0
Percentage of ProfitLoss-33.316.78.020.8-1.6-5.18.311.89.512.214.514.3
Percentage of Revenues0.50.40.60.80.50.50.60.40.30.40.40.4
Percentage of Revenues dpm:SeriesAPreferredLimitedPartners0.00.00.00.00.00.00.00.00.00.00.00.0

dpm:SeriesBPreferredLimitedPartners


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.03.03.03.03.03.03.03.03.03.02.00.0
Percentage of ProfitLoss-10.05.62.76.2-0.5-1.72.53.93.23.73.20.0
Percentage of Revenues0.10.10.20.20.20.20.20.10.10.10.10.0
Percentage of Revenues dpm:SeriesBPreferredLimitedPartners0.00.00.00.00.00.00.00.00.00.00.00.0

dpm:SeriesCPreferredLimitedPartnersMember


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2.02.03.02.02.03.02.02.0
Percentage of ProfitLoss-6.73.72.74.2-0.4-1.71.72.6
Percentage of Revenues0.10.10.20.20.10.20.10.1
Percentage of Revenues dpm:SeriesCPreferredLimitedPartnersMember0.00.00.00.00.00.00.00.0

us-gaap:LimitedPartner


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-46.0399632-564.0-228.06220392610.01214-59.047594489144159
Percentage of ProfitLoss153.372.285.766.7102.7128.851.726.341.131.716.119.021.9295.052.858.455.074.230.456.962.8
Percentage of Revenues-2.21.76.12.5-34.0-13.43.40.91.50.90.40.60.6-2.92.42.811.123.94.010.813.6
Percentage of Revenues us-gaap:LimitedPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity, us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

dpm:ThirdParty, dpm:NaturalGasNGLsandCondensate


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value14462014122512041003117115341353136517711980219118491744
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues69.486.968.675.978.770.779.579.675.980.575.979.479.881.5
Percentage of Revenues dpm:ThirdParty dpm:NaturalGasNGLsandCondensate0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty

dpm:Enbridge, dpm:NaturalGasNGLsandCondensate, srt:AffiliatedEntity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.04.00.01.00.01.0-2.00.00.00.0-1.0-13.01312
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.20.00.10.00.1-0.10.00.00.0-0.1-0.60.70.7
Percentage of Revenues0.00.20.00.10.00.1-0.10.00.00.0-0.0-0.50.60.6
Percentage of Revenues dpm:Enbridge dpm:NaturalGasNGLsandCondensate srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:PhillipsSixtySix, dpm:NaturalGasNGLsandCondensate, srt:AffiliatedEntity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value646527421247157212287237290326368483381302
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax44.726.234.420.515.718.118.717.521.218.418.622.020.617.3
Percentage of Revenues31.022.723.615.612.312.814.913.916.114.814.117.516.414.1
Percentage of Revenues dpm:PhillipsSixtySix dpm:NaturalGasNGLsandCondensate srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities, us-gaap:ProductOrService

srt:AffiliatedEntity, dpm:NaturalGasNGLsandCondensate


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value667555435262169222296246294340386491408325
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax46.127.635.521.816.819.019.318.221.519.219.522.422.118.6
Percentage of Revenues32.023.924.416.513.313.415.314.516.415.514.817.817.615.2
Percentage of Revenues srt:AffiliatedEntity dpm:NaturalGasNGLsandCondensate0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:MajorityOwnedSubsidiaryUnconsolidated, dpm:NaturalGasNGLsandCondensate, srt:AffiliatedEntity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value21241414129.0119.04.01419211411
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.51.21.11.21.20.80.70.70.30.81.01.00.80.6
Percentage of Revenues1.01.00.80.90.90.50.60.50.20.60.70.80.60.5
Percentage of Revenues us-gaap:MajorityOwnedSubsidiaryUnconsolidated dpm:NaturalGasNGLsandCondensate srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MajorityOwnedSubsidiaryUnconsolidated, dpm:TransportationProcessingandOther, srt:AffiliatedEntity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5.05.04.03.03.03.02.01.00.01.01.02.02.01.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.30.20.30.20.30.30.10.10.00.10.10.10.10.1
Percentage of Revenues0.20.20.20.20.20.20.10.10.00.00.00.10.10.0
Percentage of Revenues us-gaap:MajorityOwnedSubsidiaryUnconsolidated dpm:TransportationProcessingandOther srt:AffiliatedEntity0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

dpm:NGLsandCondensate


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value148413291041100779094612251081117114151515209317491489
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax102.666.085.083.678.880.879.979.985.879.976.595.594.685.4
Percentage of Revenues71.257.358.363.562.057.163.563.665.164.358.175.975.569.6
Percentage of Revenues dpm:NGLsandCondensate0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:TransportationProcessingandOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value125118125109109112113101110115118133127111
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax8.65.910.29.110.99.67.47.58.16.56.06.16.96.4
Percentage of Revenues6.05.17.06.98.66.85.95.96.15.24.54.85.55.2
Percentage of Revenues dpm:TransportationProcessingandOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:NaturalGasReserves


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6291240619459382447605518488696851589
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax43.561.650.538.138.138.239.438.335.839.343.026.9
Percentage of Revenues30.253.534.728.930.027.031.430.527.131.732.621.3
Percentage of Revenues srt:NaturalGasReserves0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

dpm:NGLsandCondensate, dpm:GatheringandProcessing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8377105334562823875514375356487741053870740
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax57.935.343.537.928.133.035.932.339.236.639.148.147.142.4
Percentage of Revenues40.130.629.928.822.123.428.625.729.829.529.738.237.534.6
Percentage of Revenues dpm:NGLsandCondensate dpm:GatheringandProcessing0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:NGLsandCondensate, dpm:LogisticsandMarketing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1323120597795175888311341052115514031482204017141456
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax91.559.879.879.075.675.473.977.884.679.274.893.192.783.5
Percentage of Revenues63.552.054.760.059.553.358.861.964.263.856.873.974.068.1
Percentage of Revenues dpm:NGLsandCondensate dpm:LogisticsandMarketing0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:NGLsandCondensate, us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-676.0-586.0-469.0-400.0-250.0-324.0-460.0-408.0-519.0-636.0-741.0-1000.0-835.0-707.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-46.7-29.1-38.3-33.2-24.9-27.7-30.0-30.2-38.0-35.9-37.4-45.6-45.2-40.5
Percentage of Revenues-32.4-25.3-26.3-25.2-19.6-19.6-23.8-24.0-28.9-28.9-28.4-36.2-36.0-33.1
Percentage of Revenues dpm:NGLsandCondensate us-gaap:IntersegmentElimination0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:TransportationProcessingandOther, dpm:GatheringandProcessing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1121041119798991039198103
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.75.29.18.19.88.56.76.77.25.8
Percentage of Revenues5.44.56.26.17.76.05.35.45.54.7
Percentage of Revenues dpm:TransportationProcessingandOther dpm:GatheringandProcessing0.00.00.00.00.00.00.00.00.00.0

dpm:TransportationProcessingandOther, dpm:LogisticsandMarketing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value13141413111311111212
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.90.71.11.11.11.10.70.80.90.7
Percentage of Revenues0.60.60.80.80.90.80.60.60.70.5
Percentage of Revenues dpm:TransportationProcessingandOther dpm:LogisticsandMarketing0.00.00.00.00.00.00.00.00.00.0

dpm:TransportationProcessingandOther, us-gaap:IntersegmentElimination


Revenue
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value0.0-1.0-1.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.0-0.1-0.10.00.0
Percentage of Revenues0.0-0.1-0.10.00.0
Percentage of Revenues dpm:TransportationProcessingandOther us-gaap:IntersegmentElimination0.00.00.00.00.0

srt:NaturalGasReserves, dpm:GatheringandProcessing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value489628457330271326440374363557642469
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax33.831.237.327.427.027.828.727.626.631.532.421.4
Percentage of Revenues23.527.125.620.821.319.722.822.020.225.324.617.0
Percentage of Revenues srt:NaturalGasReserves dpm:GatheringandProcessing0.00.00.00.00.00.00.00.00.00.00.00.0

srt:NaturalGasReserves, dpm:LogisticsandMarketing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6101120583437355411555461445637779530
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax42.255.647.636.335.435.136.234.132.636.039.324.2
Percentage of Revenues29.348.332.727.627.924.828.827.124.729.029.919.2
Percentage of Revenues srt:NaturalGasReserves dpm:LogisticsandMarketing0.00.00.00.00.00.00.00.00.00.00.00.0

srt:NaturalGasReserves, us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-470.0-508.0-421.0-308.0-244.0-290.0-390.0-317.0-320.0-498.0-570.0-410.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-32.5-25.2-34.4-25.6-24.3-24.8-25.4-23.4-23.4-28.1-28.8-18.7
Percentage of Revenues-22.5-21.9-23.6-19.4-19.2-17.5-20.2-18.7-17.8-22.6-21.9-14.9
Percentage of Revenues srt:NaturalGasReserves us-gaap:IntersegmentElimination0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementBusinessSegments

dpm:GatheringandProcessing


Revenue
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1129798919810311811297
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.78.19.86.77.25.85.46.15.6
Percentage of Revenues5.46.17.75.45.54.74.34.84.5
Percentage of Revenues dpm:GatheringandProcessing8.511.315.99.99.68.07.58.57.5

dpm:LogisticsandMarketing


Revenue
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value131311111212151614
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.91.11.10.80.90.70.70.90.8
Percentage of Revenues0.60.80.90.60.70.50.50.70.7
Percentage of Revenues dpm:LogisticsandMarketing0.70.91.00.70.70.60.60.70.7

us-gaap:IntersegmentElimination


Revenue
Period End2020-09-302019-09-302019-06-302018-09-302018-06-302018-03-31
Value-1.0-1.00.00.0-1.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.1-0.10.00.0-0.10.0
Percentage of Revenues-0.1-0.10.00.0-0.00.0
Percentage of Revenues us-gaap:IntersegmentElimination0.10.1-0.0-0.00.1-0.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2085231817851586127416571929169917982199260727592317213923372055194921213983723483794354654305688818688121081802672775731450330413525387383374425348239277403
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1146.0-1094.0-890.0-709.0-494.0-614.0-851.0-726.0-839.0-1134.0-1310.0-1410.0-1189.0-1126.0-1326.0-1195.0-1076.0-1165.0-1141.0-1035.0-871.0-736.0
Percentage of Revenues-55.0-47.2-49.9-44.7-38.8-37.1-44.1-42.7-46.7-51.6-50.2-51.1-51.3-52.6-56.7-58.2-55.2-54.9-286.7-278.2-250.3-194.2
Percentage of Revenues-55.0-47.2-49.9-44.7-38.8-37.1-44.1-42.7-46.7-51.6-50.2-51.1-51.3-52.6-56.7-58.2-55.2-54.9-286.7-278.2-250.3-194.2
Percentage of Revenues us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value13141314109185761891310919161024128816641579131412861502133712691359130012171037936
Percentage of Revenues63.056.761.154.048.555.156.653.957.058.663.857.256.760.164.365.165.164.1326.6327.2298.0247.0
Percentage of Revenues63.056.761.154.048.555.156.653.957.058.663.857.256.760.164.365.165.164.1326.6327.2298.0247.0
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1917209815841438115013581689150916132045225325902192197921611913175619271824164114571264
Percentage of Revenues91.990.588.790.790.382.087.688.889.793.086.493.994.692.592.593.190.190.9458.3441.1418.7333.5
Percentage of Revenues91.990.588.790.790.382.087.688.889.793.086.493.994.692.592.593.190.190.9458.3441.1418.7333.5
Percentage of Revenues us-gaap:OperatingSegments dpm:LogisticsandMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

dpm:UnconsolidatedAffiliates


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value528489510527
Percentage of Revenues25.321.140.031.8
Percentage of Revenues25.321.140.031.8
Percentage of Revenues dpm:UnconsolidatedAffiliates100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

dpm:GatheringandProcessing


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1314131410918576189131091916102412881664157913141286
Percentage of Revenues63.056.761.154.048.555.156.653.957.058.663.857.256.760.1
Percentage of Revenues63.056.761.154.048.555.156.653.957.058.663.857.256.760.1
Percentage of Revenues dpm:GatheringandProcessing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:LogisticsandMarketing


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value19172098158414381150135816891509161320452253259021921979
Percentage of Revenues91.990.588.790.790.382.087.688.889.793.086.493.994.692.5
Percentage of Revenues91.990.588.790.790.382.087.688.889.793.086.493.994.692.5
Percentage of Revenues dpm:LogisticsandMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1146.0-1094.0-890.0-709.0-494.0-614.0-851.0-726.0-839.0-1134.0-1310.0-1410.0-1189.0-1126.0
Percentage of Revenues-55.0-47.2-49.9-44.7-38.8-37.1-44.1-42.7-46.7-51.6-50.2-51.1-51.3-52.6
Percentage of Revenues-55.0-47.2-49.9-44.7-38.8-37.1-44.1-42.7-46.7-51.6-50.2-51.1-51.3-52.6
Percentage of Revenues us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value13300131111295712914129461318814127140341403314187142661448514041136781387813771135701357951615144530253545477556955835644573956175468543745264331393938462972251723332288190318391795181118131552
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

dpm:UnconsolidatedAffiliates


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-31
Value732173917430
Percentage of Assets55.056.457.3
Percentage of Assets55.056.457.3
Percentage of Assets dpm:UnconsolidatedAffiliates100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7603727970967032708772727494721968806974696972096688636664406728637163292528246826242600267227372700263827132752273727262353219821892205188813751213122810629799711000962
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.255.554.854.554.755.153.051.449.049.248.949.847.646.546.448.946.946.649.048.049.548.648.849.148.446.747.349.050.150.152.050.855.657.363.654.752.053.755.853.254.155.253.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1330013111129571291412946131881412714034140331418714266144851404113678138781377113570135795161514453025354547755695583564457395617546854374526433139393846297225172333228819031839179518111813
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1522123110088668029581080105982310821271152612821020132213111065980227193319223306368361470590573486504503420420473309270254291239198188199232197
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.49.47.86.76.27.37.67.55.97.68.910.59.17.59.59.57.87.24.43.86.04.25.66.66.58.310.310.28.99.311.19.710.712.310.410.710.912.712.610.810.511.012.812.7

us-gaap:AssetsCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

dpm:UnconsolidatedAffiliates


Assets
Period End2021-06-302021-03-312020-12-31
Value351368355
Percentage of AssetsCurrent23.129.935.2
Percentage of Assets2.62.82.7
Percentage of Assets dpm:UnconsolidatedAffiliates4.85.04.8

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-302010-09-302010-06-302010-03-312009-12-312008-12-31
Value5.05.0521412181.02.01.01.01.01.04.02.01563122511761.02.01.01.02.01.0243325975727121.09.0371.38.45.56.16.72.02.45.06.7114.82.62.161
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.40.10.10.10.00.00.00.00.00.00.00.01.12.31.81.30.00.00.00.00.00.00.40.60.41.71.00.50.30.00.21.00.00.30.20.30.40.10.10.30.00.00.00.00.10.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value6.08.0561727411.02.01.01.01.0156
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.40.10.20.30.00.00.00.00.01.1

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7807255725284884857266865117328609898246667736905595416253536473717473106929413013093109115957255709170668189
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.95.54.44.13.83.75.14.93.65.26.06.85.94.95.65.04.14.01.21.01.01.21.31.31.31.31.81.61.72.42.92.12.83.03.22.92.43.14.83.83.74.54.9

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value52303828282646554652797747516862516444342937434039366364323367543630747174696457424264
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.20.30.20.20.20.30.40.30.40.60.50.30.40.50.50.40.50.90.70.50.70.80.70.70.61.11.10.60.61.51.20.90.82.52.83.23.03.43.12.42.33.5

us-gaap:InventoryNet us-gaap:Energy

srt:NaturalGasLiquidsReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value31182010.010.09.02738272945
Percentage of InventoryNet59.660.052.635.735.734.658.769.158.755.857.0
Percentage of Assets0.20.10.20.10.10.10.20.30.20.20.3
Percentage of Assets srt:NaturalGasLiquidsReserves0.00.00.00.00.00.00.00.00.00.00.0

srt:NaturalGasReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value211218181817191734
Percentage of InventoryNet40.440.047.464.364.365.441.330.943.0
Percentage of Assets0.20.10.10.10.10.10.10.10.2
Percentage of Assets srt:NaturalGasReserves0.00.00.00.00.00.00.00.00.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value2616211830301224231616171910.01217185810.02.03.01.02.03.02.02.02.04.02.02.03.03.02.02.02.42.91.51.31.92.71.61.42.1
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.10.20.10.20.20.10.20.20.10.10.10.10.10.10.10.10.40.20.00.10.00.00.10.00.00.00.10.00.00.10.10.10.10.10.10.10.10.10.10.10.10.1

Assets Noncurrent

us-gaap:AssetsNoncurrent

us-gaap:AssetsNoncurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value1177811880119491204812144122301304712975132101310512995129591275912658125561246012505125994934495149835131517152015222517451495044498249334023391135193373266222462078199716631641160615811354
Percentage of AssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets88.690.692.293.393.892.792.492.594.192.491.189.590.992.590.590.592.292.895.696.294.095.894.493.493.591.789.789.891.190.788.990.389.387.789.689.389.187.387.489.289.587.287.3

us-gaap:AssetsNoncurrent us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value223224232229236268295266287287276277249254265283284276286
Percentage of AssetsNoncurrent1.91.91.91.91.92.22.32.12.22.22.12.12.02.02.12.32.32.25.8
Percentage of Assets1.71.71.81.81.82.02.11.92.02.01.91.91.81.91.92.12.12.05.5
Percentage of Assets us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AssetsNoncurrent us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value7668771877887851807681018904888091009126905890989048898889438884893790359053
Percentage of AssetsNoncurrent65.165.065.265.266.566.268.268.468.969.669.770.270.971.071.271.371.571.7183.5
Percentage of Assets57.758.960.160.862.461.463.063.364.864.363.562.864.465.764.464.565.966.5175.4
Percentage of Assets us-gaap:OperatingSegments dpm:GatheringandProcessing0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value3887393839293968383238613848382938233692366135843462341633483293328432883278
Percentage of AssetsNoncurrent33.033.132.932.931.631.629.529.528.928.228.227.727.127.026.726.426.326.166.4
Percentage of Assets29.230.030.330.729.629.327.227.327.226.025.724.724.725.024.123.924.224.263.5
Percentage of Assets us-gaap:OperatingSegments dpm:LogisticsandMarketing0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

dpm:UnconsolidatedAffiliates


Assets
Period End2021-06-302021-03-312020-12-31
Value738274467510
Percentage of AssetsNoncurrent62.762.762.9
Percentage of Assets55.556.858.0
Percentage of Assets dpm:UnconsolidatedAffiliates100.8100.7101.1

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value133931342513420133871336813342145041458414879147861472415000148231468914532143811438014434454045264517485048504828479146644611451244204333415640883784369024792413230522651719165616151559
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.7102.4103.6103.7103.3101.2102.7103.9106.0104.2103.2103.6105.6107.4104.7104.4106.0106.388.088.085.290.688.686.785.882.680.380.380.879.791.894.496.195.983.495.998.899.090.390.090.086.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

dpm:FinanceLeaseAssets


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value252525252221255.00.0
Percentage of PropertyPlantAndEquipmentGross0.20.20.20.20.20.20.20.00.0
Percentage of Assets0.20.20.20.20.20.20.20.00.0
Percentage of Assets dpm:FinanceLeaseAssets0.00.00.00.00.00.00.00.00.0

dpm:GatheringAndTransmissionSystems


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7643768976807659764676778406858686948539849287378599854584738447847785682046205020452340233722992270226722092199220121812205212620361938132513071261119810111002997992
Percentage of PropertyPlantAndEquipmentGross57.157.357.257.257.257.558.058.958.457.857.758.258.058.258.358.758.959.445.145.345.348.248.247.647.448.647.948.749.850.353.152.053.852.553.554.254.752.958.860.561.863.6
Percentage of Assets57.558.659.359.359.158.259.561.262.060.259.560.361.262.561.161.362.563.139.639.938.643.742.741.340.740.238.539.140.340.148.749.151.750.444.651.954.152.453.154.555.654.7
Percentage of Assets dpm:GatheringAndTransmissionSystems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:ProcessingPlants


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value5047499249864948493948735305523053845149519453175141512951285107514251442342233623332362232723142296204220712020199319471593134213131239822820775773538536542513
Percentage of PropertyPlantAndEquipmentGross37.737.237.237.036.936.536.635.936.234.835.335.434.734.935.335.535.835.651.651.651.648.748.047.947.943.844.944.845.144.938.332.834.733.633.234.033.634.131.332.433.632.9
Percentage of Assets37.938.138.538.338.237.037.637.338.436.336.436.736.637.537.037.137.937.945.445.444.044.142.541.641.136.236.136.036.435.835.231.033.332.227.732.633.233.828.329.230.228.3
Percentage of Assets dpm:ProcessingPlants0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value9413714417219419418318821752747038252045337428825921689787982122159169300281239169156310586399477305261246272151995942
Percentage of PropertyPlantAndEquipmentGross0.71.01.11.31.51.51.31.31.53.63.22.53.53.12.62.01.81.52.01.71.71.72.53.33.56.46.15.33.83.67.514.310.512.912.310.810.712.08.86.03.72.7
Percentage of Assets0.71.01.11.31.51.51.31.31.53.73.32.63.73.32.72.11.91.61.71.51.51.52.22.93.05.34.94.33.12.96.813.510.112.410.310.410.611.97.95.43.32.3
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherEnergyEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-06-30
Value584582585583567577585575584571568564563562557539502506636260666456565550545749483436362624222323
Percentage of PropertyPlantAndEquipmentGross4.44.34.44.44.24.34.03.93.93.93.93.83.83.83.83.73.53.51.41.41.31.41.31.21.21.21.11.21.31.11.20.81.01.01.11.01.01.31.4
Percentage of Assets4.44.44.54.54.44.44.14.14.24.04.03.94.04.14.03.93.73.71.21.21.11.21.21.01.01.00.91.01.00.91.10.80.90.90.91.01.01.21.3
Percentage of Assets us-gaap:OtherEnergyEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value5556551254275341525251625693571357715676558958375743564955495455543053871268124212151404137413451317129012641238121311871151112811051084751739727719537518499462
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.842.041.941.440.639.140.340.741.140.039.240.340.941.340.039.640.039.724.624.122.926.225.124.223.622.922.022.022.221.825.426.028.128.225.329.431.231.428.228.227.825.5

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7837791379938046811681808811887191089110913591639080904089838926895090473272328433023446347634833474337433473274320731463005296026792606172716731578154611811137111511201097
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets58.960.461.762.362.762.062.463.264.964.264.063.364.766.164.764.866.066.663.463.862.364.463.562.562.259.858.358.358.757.966.468.368.067.858.166.567.767.562.161.962.161.960.5

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value360136403641366836963681372436113581346033403277316531053050300229942988147514741481148614931490148514811459143414261410627532384326558229147108208222218216216
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.127.828.128.428.527.926.425.725.524.423.422.622.522.722.021.822.122.028.628.727.927.827.326.826.626.225.425.526.125.913.912.39.78.518.89.16.34.711.012.112.211.912.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value424344464748616365779799101104106109132135103105108110112113115117120122124127129131133135136139141143113115117117119
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.40.40.40.40.40.50.50.70.70.70.80.80.81.01.02.02.02.02.12.02.02.12.12.12.22.32.32.93.03.43.54.65.56.06.36.06.36.56.56.6

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8879858391981079169780.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.70.60.70.60.70.70.80.60.50.50.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value20018817016516517018317618818418417017417718318819318912131510.09.02628283027292721222014117.17.37.17.2
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.41.31.31.31.31.31.31.31.31.31.21.21.31.31.41.41.40.20.30.30.20.20.50.50.50.50.50.50.50.50.50.70.60.60.40.40.40.4

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2020-12-312020-09-302019-12-312018-12-31
Value3000000.03000000.01000000.00
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.00.0
Percentage of Assets0.00.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1808174416211413812966179316921803240419042333188717231488178414351390734190212175200510490525601393379374722358410424233295226304269692653239211
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.613.312.510.96.37.312.712.112.816.913.316.113.412.610.713.010.610.214.23.74.03.33.79.28.89.310.57.06.96.916.08.310.411.07.911.79.713.314.137.636.413.211.6

us-gaap:LiabilitiesCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

dpm:UnconsolidatedAffiliates


Liabilities
Period End2021-06-302021-03-312020-12-31
Value155163177
Percentage of LiabilitiesCurrent8.69.310.9
Percentage of Assets1.21.21.4
Percentage of Assets dpm:UnconsolidatedAffiliates2.12.22.4

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value3505005005000.00.060060080011255255253254500.05005005005000.02502502502500.0
Percentage of LongTermDebtCurrent100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0
Percentage of Assets2.63.83.93.90.00.04.24.35.77.93.73.62.33.30.03.63.73.79.70.04.54.54.44.40.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-03-31
Value2423242423232418
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value107107122981021481281081029610079108731031061067329264517344594478531545060376858386854453861382531
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.80.90.80.81.10.90.80.70.70.70.50.80.50.70.80.80.50.60.50.80.30.60.81.70.81.50.61.00.91.30.91.71.51.32.72.32.02.03.32.11.41.7

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302012-12-31
Value6068596852696574576564816064588866681928231812269.0268.0205.0
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.50.40.50.50.50.40.50.40.60.40.50.40.60.50.50.40.50.40.30.20.50.20.50.20.50.2

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesNoncurrent

dpm:UnconsolidatedAffiliates


Liabilities
Period End2021-06-302021-03-312020-12-31
Value257260258
Percentage of LiabilitiesNoncurrent100.0100.0100.0
Percentage of Assets1.92.02.0
Percentage of Assets dpm:UnconsolidatedAffiliates3.53.53.5

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value538851785119524458975921532151654750423647824575451043584707471147104709175022312367237724242179216220622061231123102310159018011740173916201038948865746249249675647
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets40.539.539.540.645.644.937.736.833.829.933.531.632.131.933.934.234.734.733.943.444.644.444.339.138.736.535.941.142.242.535.141.644.245.254.541.240.637.839.213.613.937.335.7

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value30303030303030323232322929292930292828
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.5

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value25924324324023522624223623323124323523323220119319019544474548474848515146424140363636272822221616151553
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.91.91.91.81.71.71.71.71.61.71.61.71.71.41.41.41.40.90.90.80.90.90.90.90.90.90.80.80.80.90.80.90.90.91.11.01.00.90.90.90.92.9

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value787176767683887457660.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.60.50.60.60.60.60.60.50.40.50.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value27242426
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.20.20.20.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value24191922
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.20.10.10.2

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value15121218
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value10.08.08.011
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value24232430
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0
Percentage of Assets0.20.20.20.2

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-06-302019-03-312018-12-31
Value1029410010011275840.0
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.80.70.80.80.80.50.60.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value114106115114
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets0.90.80.90.9

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value12121514
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-7000000.0-7000000.0-7000000.0-7000000.0-7000000.0-7000000.0-7000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-9000000.0-9000000.0-9000000.0-9000000.0-9000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-9000000.0-9000000.0-9000000.0-9000000.0-11000000.0-12000000.0-13000000.0-14000000.0-14700000.0-15500000.0-16800000.0-19200000.0-21200000.0-22800000.0-22500000.0-23300000.0-27700000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.3-0.3-0.4-0.5-0.6-0.7-0.8-1.1-1.2-1.3-1.3-1.5

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:DerivativeInstrumentRisk, us-gaap:PartnerCapitalComponents

us-gaap:InterestRateSwap, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-2000000.0-2000000.0-2000000.0-2000000.0-2000000.0-2000000.0-2000000.0-3000000.0-3000000.0-3000000.0-3000000.0-3000000.0-3000000.0-4000000.0-4000000.0-4000000.0-4000000.0-4000000.0-3000000.0-3000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax28.628.628.628.628.628.628.637.537.537.537.537.537.544.444.444.444.444.437.537.5
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1
Percentage of Assets us-gaap:InterestRateSwap us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:PartnerCapitalComponents

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-7000000.0-7000000.0-7000000.0-7000000.0-7000000.0-7000000.0-7000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-8000000.0-9000000.0-9000000.0-9000000.0-9000000.0-9000000.0-8000000.0-8000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.1
Percentage of Assets us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.01.01.01.01.01.0-2.01.02.01.0-1.01.01.02.02.02.02.02.01.02.01.02.01.01.02.01.01.010.08.06.05.05.04.02.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:PartnerCapitalComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1.01.01.01.01.01.0-2.01.02.01.0-1.01.01.02.02.02.01.03.01.02.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.050.0150.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value72-4.0308268209314222912293171212102091222123242161441201351321881571431621888913515414660-6.0123147-33.9871061556024642.8473653
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.5-0.217.316.916.418.911.55.412.714.44.67.69.05.79.115.811.16.830.236.337.949.636.130.837.733.110.115.619.013.57.5-0.915.920.1-7.526.42.611.614.315.76.615.10.819.713.013.3

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-27.0-14.0-34.0-33.0-89.0-103.0-175.0-139.0-236.0-210.0-255.0-299.0-210.0-181.0-193.0-127.0-3.0-68.0-14.01251.0-18.0-44.0-59.0-150.0-90.0-120.0-118.0-102.0-896.0-178.0-441.0-160.0-608.0-427.7-210.1-67.5-365.2-41.4-46.7-20.9-165.0-113.0-92.3-38.0-24.6
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.3-0.6-1.9-2.1-7.0-6.2-9.1-8.2-13.1-9.5-9.8-10.8-9.1-8.5-8.3-6.2-0.2-3.2-3.533.60.3-4.7-10.1-12.7-34.9-15.8-13.6-13.6-12.6-82.9-22.2-65.6-20.6-83.2-94.9-63.5-16.3-69.5-10.7-12.2-5.6-38.8-32.4-38.5-13.7-6.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-47.0-30.0-235.0-245.0-134.0-171.0-48.0497.0-107.0134863.0-95.0-175.0-136.0-138.099-107.0-259.0-133.0-171.0-112.0-107.0-21.0-90.0-41.023-22.07651294399.049645412556302-9.1-14.0-6.399105524.2-28.6
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.3-1.3-13.2-15.4-10.5-10.3-2.52.90.4-4.95.13.10.1-4.4-7.5-6.6-7.14.7-26.9-69.6-38.2-45.1-25.7-23.0-4.9-15.8-4.72.6-2.770.816.165.31.267.9100.938.013.657.6-2.4-3.7-1.723.430.221.71.5-7.1

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-118.0-245.0-123.0-77.0-20.0282371172-255.0-118.0-201.0206211-161.013515740-138.023-7.06.0-19.0-36.028-41.0-61.0-38.0-4.0-40.01464-1.0-53.0795311-39.8-55.134-6.3-17.1-0.546-4.3-15.9-31.9
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-22.08.0-10.00.0-3.016199.0-5.0-14.02.030-4.0-17.06.011-13.0-8.010.03.0-6.0-6.03.01.03.0-27.0-1.032-1.0-34.013177.0-46.03.0-2.45.1-19.07.3150.3-22.027-4.4-23.58.9
Percentage of IncreaseDecreaseInInventories100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-138.0-138.04731-38.070-23.0-19.041-103.0167-11.018-110.0-17.0-32.088-32.0-11.712-12.3-14.419-0.18.1-7.9-3.70.9
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value72-4.0308268209314222912293171212102091222123242161441201351321881571431621888913515414660-6.0123147-33.9871061556024642.8473653
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.5-0.217.316.916.418.911.55.412.714.44.67.69.05.79.115.811.16.830.236.337.949.636.130.837.733.110.115.619.013.57.5-0.915.920.1-7.526.42.611.614.315.76.615.10.819.713.013.3

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-31.0538611147-550.01.0-178.0119759481616260-20.0881017512045729071-2.069199116297928-1.010252641.37923-1.56641-5.94.30.02532
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of Revenues-1.52.34.87.03.7-33.20.1-10.56.63.43.62.92.62.92.6-1.04.54.818.832.312.919.020.715.3-0.512.122.613.43.67.33.5-0.113.27.114.30.419.14.4-0.417.311.1-1.41.20.09.38.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0
Percentage of NetIncomeLoss461.3-226.4-182.6-130.6-300.025.6-16000.087.1-131.1-185.3-156.4-201.2-237.7-209.7-266.7740.0-164.8-136.6-314.7-123.3-342.2-206.9
Percentage of Revenues-6.9-5.2-8.8-9.1-11.1-8.5-8.3-9.1-8.7-6.3-5.6-5.9-6.3-6.1-6.8-7.2-7.4-6.5-59.3-39.8-44.3-39.3
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3.027855011-645.012-147.090678996761131322914115210713456120
Percentage of NetIncomeLoss-9.750.998.845.023.4117.31200.082.675.689.394.7118.5124.6182.3220.0-145.0160.2150.5142.7111.7124.4166.7
Percentage of Revenues0.11.24.83.20.9-38.90.6-8.75.03.03.43.53.35.35.61.47.27.226.936.016.131.7
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing0.22.17.85.81.8-70.61.1-16.08.85.25.36.15.88.88.82.211.111.28.211.05.412.8

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1091461582061772361491241851471521481307988999287851037694
Percentage of NetIncomeLoss-351.6275.5183.7185.6376.6-42.914900.0-69.7155.5196.0161.7182.7213.1127.4146.7-495.0104.586.1113.385.8168.9130.6
Percentage of Revenues5.26.38.913.013.914.27.77.310.36.75.85.45.63.73.84.84.74.121.427.721.824.8
Percentage of Revenues us-gaap:OperatingSegments dpm:LogisticsandMarketing5.77.010.014.315.417.48.88.211.57.26.75.75.94.04.15.25.24.54.76.35.27.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-30.0548711248-549.02.0-177.0120769582626364-20.0891018012046729472-2.0692031162989352.010655671.979244.56551-2.49.13.32632
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.42.34.97.13.8-33.10.1-10.46.73.53.63.02.72.92.7-1.04.64.820.132.313.219.021.615.5-0.512.123.013.43.68.24.40.313.77.514.90.619.34.61.217.213.7-0.62.61.49.78.0

us-gaap:ProfitLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-143.0-120.0-157.0-145.0-141.0-141.0-160.0-155.0-156.0-139.0-147.0-163.0-145.0-130.0-160.0-148.0-145.0-138.0-236.0-148.0-154.0-149.0
Percentage of ProfitLoss476.7-222.2-180.5-129.5-293.825.7-8000.087.6-130.0-182.9-154.7-198.8-233.9-206.3-250.0740.0-162.9-136.6-295.0-123.3-334.8-206.9
Percentage of Revenues-6.9-5.2-8.8-9.1-11.1-8.5-8.3-9.1-8.7-6.3-5.6-5.9-6.3-6.1-6.8-7.2-7.4-6.5-59.3-39.8-44.3-39.3
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value4.028865112-644.013-146.091689097771141362914215211213457120
Percentage of ProfitLoss-13.351.998.945.525.0117.3650.082.575.889.594.7118.3124.2181.0212.5-145.0159.6150.5140.0111.7123.9166.7
Percentage of Revenues0.21.24.83.20.9-38.90.7-8.65.13.13.53.53.35.35.81.47.37.228.136.016.431.7
Percentage of Revenues us-gaap:OperatingSegments dpm:GatheringandProcessing0.32.17.96.01.9-70.51.2-15.98.95.35.46.15.98.99.12.211.211.28.611.05.512.8

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1091461582061772361491241851471521481307988999287851037694
Percentage of ProfitLoss-363.3270.4181.6183.9368.8-43.07450.0-70.1154.2193.4160.0180.5209.7125.4137.5-495.0103.486.1106.285.8165.2130.6
Percentage of Revenues5.26.38.913.013.914.27.77.310.36.75.85.45.63.73.84.84.74.121.427.721.824.8
Percentage of Revenues us-gaap:OperatingSegments dpm:LogisticsandMarketing5.77.010.014.315.417.48.88.211.57.26.75.75.94.04.15.25.24.54.76.35.27.4

us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

dpm:UnconsolidatedAffiliates


Profit
Period End2021-06-302021-03-312020-06-302020-03-31
Value316298318341
Percentage of ProfitLoss-1053.3551.9662.5-62.1
Percentage of Revenues15.212.925.020.6
Percentage of Revenues dpm:UnconsolidatedAffiliates59.860.962.464.7

us-gaap:ProfitLoss us-gaap:PartnerCapitalComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1.01.01.01.01.01.01.01.01.01.01.01.04.00.01.00.05.00.0
Percentage of ProfitLoss-3.31.90.92.1-0.2-0.60.81.31.11.21.61.66.2-0.01.10.06.20.0
Percentage of Revenues0.00.00.10.10.10.10.10.00.00.00.00.00.20.00.10.01.30.0
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:PartnerTypeOfPartnersCapitalAccount

dpm:SeriesAPreferredLimitedPartners


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10.09.09.010.09.09.010.09.09.010.09.09.0
Percentage of ProfitLoss-33.316.78.020.8-1.6-5.18.311.89.512.214.514.3
Percentage of Revenues0.50.40.60.80.50.50.60.40.30.40.40.4
Percentage of Revenues dpm:SeriesAPreferredLimitedPartners0.00.00.00.00.00.00.00.00.00.00.00.0

dpm:SeriesBPreferredLimitedPartners


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.03.03.03.03.03.03.03.03.03.02.00.0
Percentage of ProfitLoss-10.05.62.76.2-0.5-1.72.53.93.23.73.20.0
Percentage of Revenues0.10.10.20.20.20.20.20.10.10.10.10.0
Percentage of Revenues dpm:SeriesBPreferredLimitedPartners0.00.00.00.00.00.00.00.00.00.00.00.0

dpm:SeriesCPreferredLimitedPartnersMember


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2.02.03.02.02.03.02.02.0
Percentage of ProfitLoss-6.73.72.74.2-0.4-1.71.72.6
Percentage of Revenues0.10.10.20.20.10.20.10.1
Percentage of Revenues dpm:SeriesCPreferredLimitedPartnersMember0.00.00.00.00.00.00.00.0

us-gaap:LimitedPartner


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-46.0399632-564.0-228.06220392610.01214-59.047594489144159
Percentage of ProfitLoss153.372.285.766.7102.7128.851.726.341.131.716.119.021.9295.052.858.455.074.230.456.962.8
Percentage of Revenues-2.21.76.12.5-34.0-13.43.40.91.50.90.40.60.6-2.92.42.811.123.94.010.813.6
Percentage of Revenues us-gaap:LimitedPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-27.0-14.0-34.0-33.0-89.0-103.0-175.0-139.0-236.0-210.0-255.0-299.0-210.0-181.0-193.0-127.0-3.0-68.0-14.01251.0-18.0-44.0-59.0-150.0-90.0-120.0-118.0-102.0-896.0-178.0-441.0-160.0-608.0-427.7-210.1-67.5-365.2-41.4-46.7-20.9-165.0-113.0-92.3-38.0-24.6
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.3-0.6-1.9-2.1-7.0-6.2-9.1-8.2-13.1-9.5-9.8-10.8-9.1-8.5-8.3-6.2-0.2-3.2-3.533.60.3-4.7-10.1-12.7-34.9-15.8-13.6-13.6-12.6-82.9-22.2-65.6-20.6-83.2-94.9-63.5-16.3-69.5-10.7-12.2-5.6-38.8-32.4-38.5-13.7-6.1

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value27143523336910510612618216716014412411799111489.0302610.036511296592958863868294101475246535717151313111312
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3.01.05.09.01.01.05.04.04.03.05.05.04.03.03.07.08.04.0118.03.05.0
Percentage of PaymentsToAcquirePropertyPlantAndEquipment11.17.114.339.13.01.44.83.83.21.63.03.12.82.42.67.17.28.3122.226.711.550.0

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2413281332679999111165158152140120113911034317182250
Percentage of PaymentsToAcquirePropertyPlantAndEquipment88.992.980.056.597.097.194.393.488.190.794.695.097.296.896.691.992.889.6188.960.084.6500.0

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2.01.00.01.01.03.011144.03.00.01.01.01.00.01.03.04.01.02.0
Percentage of PaymentsToAcquirePropertyPlantAndEquipment5.74.30.01.41.02.88.77.72.41.90.00.80.91.00.02.133.313.33.820.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-47.0-30.0-235.0-245.0-134.0-171.0-48.0497.0-107.0134863.0-95.0-175.0-136.0-138.099-107.0-259.0-133.0-171.0-112.0-107.0-21.0-90.0-41.023-22.07651294399.049645412556302-9.1-14.0-6.399105524.2-28.6
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.3-1.3-13.2-15.4-10.5-10.3-2.52.90.4-4.95.13.10.1-4.4-7.5-6.6-7.14.7-26.9-69.6-38.2-45.1-25.7-23.0-4.9-15.8-4.72.6-2.770.816.165.31.267.9100.938.013.657.6-2.4-3.7-1.723.430.221.71.5-7.1

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-11-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value146511434495551252215112661248205514021541181711686351160.00.00.05034176583947323722881620.00.00.0719131747270809493131134528672269211616954721044794116
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value140610865767131272215211261038186013481335154711435356160.00.01954875546694427233561881620.00.00.00.034268627069072925520360467110113451917544994114
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:AdvancesToEquityMethodInvestments

dpm:AdvancesToEquityMethodInvestments


Advances
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.012563412456139131891396660782921207.011158.08.08.0212535232865926361269743401.51.96.17.00.11.60.0260.7
Percentage of AdvancesToEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

dpm:AdvancesToEquityMethodInvestments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Advances
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.0125634124561391318913666597828212014111512
Percentage of AdvancesToEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.097.8100.098.3100.096.6100.0100.0200.0100.0100.0150.0

dpm:BuySellPurchases

dpm:BuySellPurchases


Buy
Period End2021-06-302021-03-31
Value561390
Percentage of BuySellPurchases100.0100.0

dpm:BuySellRevenues

dpm:BuySellRevenues


Buy
Period End2021-06-302021-03-31
Value636444
Percentage of BuySellRevenues100.0100.0

dpm:EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses

dpm:EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses


Equity
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2101741961911851751671621911701571471391831641521481541401301281331331451291261351328288717210016948313420226121040262224201
Percentage of EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:NetIncomeLossAllocatedtoPreferredSeriesALimitedPartners

dpm:NetIncomeLossAllocatedtoPreferredSeriesALimitedPartners


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-10000000.0-9000000.0-9000000.0-9000000.0-10000000.0-9000000.0-9000000.0-9000000.0-10000000.0-9000000.0-9000000.0-10000000.0-9000000.0-9000000.0-4000000.000
Percentage of NetIncomeLossAllocatedtoPreferredSeriesALimitedPartners100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

dpm:NetIncomeLossAllocatedtoPreferredSeriesBLimitedPartners

dpm:NetIncomeLossAllocatedtoPreferredSeriesBLimitedPartners


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-3000000.0-3000000.0-4000000.0-3000000.0-3000000.0-3000000.0-4000000.0-3000000.0-3000000.0-3000000.0-3000000.0-3000000.0-2000000.00000
Percentage of NetIncomeLossAllocatedtoPreferredSeriesBLimitedPartners100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

dpm:NetIncomeLossAllocatedtoPreferredSeriesCLimitedPartners

dpm:NetIncomeLossAllocatedtoPreferredSeriesCLimitedPartners


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-2000000.0-2000000.0-2000000.0-3000000.0-2000000.0-2000000.0-2000000.0-3000000.0-2000000.0-2000000.0-2000000.0000
Percentage of NetIncomeLossAllocatedtoPreferredSeriesCLimitedPartners100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFive us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFive

dpm:NaturalGasBasisSwaps


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302016-09-302014-09-302014-06-302014-03-31
Value4562500.01825000.0-5805000.005490000.02140000.000000
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearFive100.0100.0100.00.0100.0100.00.00.00.00.00.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFiveVolume us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFiveVolume

srt:NaturalGasLiquidsReserves


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value0-1440000.0120000.00-1440000.000
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearFiveVolume0.0100.0100.00.0100.00.00.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFour us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFour

dpm:NaturalGasBasisSwaps


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.9854.885-5.16-2.73752.73757.3-0.91250.08.21250.00.03.660.00.00.00.00.01.80.00.02.140.0-2.140.00.00.00.00.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearFour100.0100.0100.0100.0100.0100.0100.00.0100.00.00.0100.00.00.00.00.00.0100.00.00.0100.00.0100.00.00.00.00.00.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFourVolume us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearFourVolume

srt:NaturalGasLiquidsReserves


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value0-1440000.000-1440000.001140.0-451.0-514.0-175.0-4322.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearFourVolume0.0100.00.00.0100.00.0100.0100.0100.0100.0100.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearOne us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearOne

dpm:NaturalGasBasisSwaps


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3.1475-11.595-12.731.15-3.748.19120.135-0.10252.1025-0.5125-3.916.1075-3.850.52250.605-3.58755.66257.0225-1.022.2575-1.750.3675-1.6952.6751.3925-2.025-1.03254.305173.993-0.5950.1359.085
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearOne100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NaturalGasReserves


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8.5063-52.4095-55.60037.37325.9991-27.6598-11.50405-1.379811-32.14865-30.35325
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearOne270.3452.0436.8641.1-160.4-337.7-93.2-1022.1-11560.1-1529.15922.6

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearOneVolume us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearOneVolume

srt:CrudeOil


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value600000.0-1579000.0-1716000.0430000.0727000.0-1410000.0-1772000.0462000.0180000.0-1191000.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearOneVolume100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NaturalGasLiquidsReserves


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2998200.0-9599700.0-8925200.011049000.013029000.0-25010000.0-18245000.07389500.06458500.0-26987000.0-22876000.012301000.0-1264400.0-24473000.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearOneVolume499.7608.0520.12569.51792.11773.71029.61599.53588.12265.90.00.00.00.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearSix us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearSix

dpm:NaturalGasBasisSwaps


Net
Period End2020-09-30
Value460000.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearSix100.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearSixVolume us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearSixVolume

srt:NaturalGasLiquidsReserves


Net
Period End2021-06-302021-03-312020-09-30
Value-480000.0-240000.0-240000.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearSixVolume100.0100.0100.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearThree us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearThree

dpm:NaturalGasBasisSwaps


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-3.654.72-9.1252.73751.8258.21254.56258.2125-0.9125-3.65-7.310.00.03.66-5.65757.29252.0250.0-1.80.00.01.8-0.7851.760.01.69-2.7953.2-0.92.185-1.7750.03.650.00.9
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearThree100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0

srt:NaturalGasReserves


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-3.657.3-7.3-0.9125-13.68750.00.00.00.00.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearThree100.0154.7-266.7-50.0-166.70.00.0-0.0-0.0-0.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearThreeVolume us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearThreeVolume

srt:CrudeOil


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-223000.0-43000.064000.00-107000.090000.0-54000.00-100000.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearThreeVolume100.0100.0100.00.0100.0100.0100.00.0100.0

srt:NaturalGasLiquidsReserves


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value30000.0-1320000.046842.058000.0-1440000.0-104840.05372200.0137600.0-3426.0-5516200.07846100.0-32926.0-13800000.0231550.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearThreeVolume-13.53069.80.090.60.098.05969.1-254.80.05516.20.00.00.00.0

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearTwo us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearTwo

dpm:NaturalGasBasisSwaps


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value11-0.275-4.7854.325-14.857515-0.5353.668.1925-6.045-0.892.4025-2.01256.84-0.84253.19250.7-0.655-0.53752.061.31750.3675-1.6952.6751.3925-2.025-1.03254.3058.144.33511-2.7475-11.4225
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearTwo100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NaturalGasReserves


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-22.8125-32.8528-17.8775-1.915-45.545.1459-1.3559-2.86-0.9316
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearTwo0.00.0246.76500.940.0-1052.9-34.6-8.8534.6-25.4201.5

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearTwoVolume us-gaap:Energy

dpm:NetLongOrShortPositionsExpectedToBeRealizedYearTwoVolume

srt:CrudeOil


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-527000.0-579000.0577000.0631000.045000.0-1467000.0589000.0-727000.0-381000.0-283000.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearTwoVolume100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NaturalGasLiquidsReserves


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-5863400.0-2350300.07048700.0-6499.0-1171000.0-7294100.011012000.0-2830200.0-458910.0-14389000.07732600.0-2280700.0-16074000.0-3240200.0
Percentage of NetLongOrShortPositionsExpectedToBeRealizedYearTwoVolume1112.6405.91221.6-1.0-2602.1497.21869.5389.3120.45084.40.00.00.00.0

dpm:PreferredLimitedPartnershipUnitDistributionAmountDeclared us-gaap:PartnerTypeOfPartnersCapitalAccount, us-gaap:SubsequentEventType

dpm:PreferredLimitedPartnershipUnitDistributionAmountDeclared

dpm:SeriesCPreferredLimitedPartnersMember, us-gaap:SubsequentEvent


Preferred
Period End2020-07-212020-04-212020-01-222019-10-222019-07-232019-04-232019-01-232018-10-23
Value0.49690.49690.49690.49690.49690.49690.49690.5576
Percentage of PreferredLimitedPartnershipUnitDistributionAmountDeclared100.0100.0100.0100.0100.0100.0100.0100.0

dpm:PropertyPlantAndEquipmentOtherIncreaseDecrease

dpm:PropertyPlantAndEquipmentOtherIncreaseDecrease


Property
Period End2021-06-302021-03-31
Value0-2000000.0
Percentage of PropertyPlantAndEquipmentOtherIncreaseDecrease0.0100.0

dpm:RealizedGainLossOnDerivatives us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

dpm:RealizedGainLossOnDerivatives

us-gaap:Nondesignated, us-gaap:CommodityContract


Realized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-17.0-316.0112250182325-10.027-64.0-43.0
Percentage of RealizedGainLossOnDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:RevenuefromcontractwithcustomernotwithinscopeofTopic606

dpm:RevenuefromcontractwithcustomernotwithinscopeofTopic606


Revenuefromcontractwithcustomernotwithinscopeof
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value470414-220.03031112591852704822858106713791108793
Percentage of RevenuefromcontractwithcustomernotwithinscopeofTopic606100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:RightOfUseAssetsObtainedInExchangeForOperatingAndFinanceLeaseLiabilities

dpm:RightOfUseAssetsObtainedInExchangeForOperatingAndFinanceLeaseLiabilities


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.010.01.00.044320.06.0
Percentage of RightOfUseAssetsObtainedInExchangeForOperatingAndFinanceLeaseLiabilities100.0100.0100.00.0100.0100.00.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-312016-09-30
Value200.00.00.07460.02470.00.01450.00.0480.00.0
Percentage of AssetImpairmentCharges100.00.00.00.0100.00.0100.00.00.0100.00.00.0100.00.00.0

us-gaap:AssetImpairmentCharges us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Asset
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302017-12-312017-09-30
Value7.00.00.00.07460.02120.048
Percentage of AssetImpairmentCharges35.00.00.00.0100.00.085.80.0100.0

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Asset
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302017-12-312017-09-30
Value130.00.00.0350.00.0
Percentage of AssetImpairmentCharges65.00.00.00.014.20.00.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value6.04.02.0-3.0-8.01624-16.0-3.0404116-12.05431-6.0-13.04610.0-1.00.02.0-6.0-15.01.0324.05.02212-14.013-1.02910.0-7.2-8.2237.14.1-8.711-0.73.8
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2.0-48.039-10.0-14.040-1.01.00.00.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-09-302017-06-302016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1000000.00-1000000.00-1000000.0-1000000.0-1000000.000-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0000-1000000.0000-1000000.01000000.0-3000000.0-4000000.0-9000000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.00.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:CashFlowHedging


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-09-302017-06-302016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1000000.00-1000000.00-1000000.0-1000000.0-1000000.000-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0000-1000000.0000-1000000.01000000.0-3000000.0-4000000.0-14000000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.00.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0155.6

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-31
Value0-1000000.00
Percentage of ContractWithCustomerLiabilityRevenueRecognized0.0100.00.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value91909190929798989910197959492959090922827273029282726262526242223211811127.52318191822171818
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value93919292939910010010110399989794979494943129303232302929292728262525232013149.6252020201918191817
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value8.07.08.07.08.07.08.08.0-7.07.07.06.07.07.07.05.05.05.05.05.04.05.0
Percentage of DepreciationAndAmortization8.67.78.77.68.67.18.08.0-6.96.87.16.17.27.47.25.35.35.316.117.213.315.6

us-gaap:DepreciationAndAmortization us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value8281808282898388-91.093888787848785868586858786
Percentage of DepreciationAndAmortization88.289.087.089.188.289.983.088.0-90.190.388.988.889.789.489.790.491.590.4277.4293.1290.0268.8

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3.03.04.03.03.03.09.04.0-3.03.04.05.03.03.03.04.03.04.03.04.04.04.0
Percentage of DepreciationAndAmortization3.23.34.33.33.23.09.04.0-3.02.94.05.13.13.23.14.33.24.39.713.813.312.5

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:DerivativeGainLossOnDerivativeNet


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-153.0-369.00.011-7.0152-14.0-1.029-27.0123-56.0-67.0-41.0-50.0-43.02231-33.015-23.018
Percentage of DerivativeGainLossOnDerivativeNet100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:Nondesignated, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-153.0-369.00.011-7.0152-14.0-1.029-27.0123-56.0
Percentage of DerivativeGainLossOnDerivativeNet100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:StatementBusinessSegments

dpm:GatheringandProcessing


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-124.0-128.0-10.0-26.0-33.0101-3.01428-20.0143-61.0-66.03.0
Percentage of DerivativeGainLossOnDerivativeNet81.034.70.0-236.4471.466.421.4-1400.096.674.1116.3108.998.5-7.3

dpm:LogisticsandMarketing


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-29.0-241.010.0372651-11.0-15.01.0-7.0-20.05.0-1.0-44.0
Percentage of DerivativeGainLossOnDerivativeNet19.065.30.0336.4-371.433.678.61500.03.425.9-16.3-8.91.5107.3

us-gaap:DistributionMadeToLimitedPartnerCashDistributionsPaid

us-gaap:DistributionMadeToLimitedPartnerCashDistributionsPaid


Distribution
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value235.0256.0235.0256.0235.0214.0210.00.00.0
Percentage of DistributionMadeToLimitedPartnerCashDistributionsPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit us-gaap:SubsequentEventType

us-gaap:DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit

us-gaap:SubsequentEvent


Distribution
Period End2021-07-202021-04-202021-01-212020-10-162019-07-23
Value0.390.390.390.390.78
Percentage of DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit100.0100.0100.0100.0100.0

us-gaap:EmployeeBenefitsAndShareBasedCompensation

us-gaap:EmployeeBenefitsAndShareBasedCompensation


Employee
Period End2021-06-302021-03-31
Value1000000.04000000.0
Percentage of EmployeeBenefitsAndShareBasedCompensation100.0100.0

us-gaap:EmployeeBenefitsAndShareBasedCompensation us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:LimitedPartner


Employee
Period End2021-06-302021-03-31
Value1000000.04000000.0
Percentage of EmployeeBenefitsAndShareBasedCompensation100.0100.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquityMethodInvestmentDividendsOrDistributions


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value170129142169167153142139135124116132102919793101766170646357576126354527137.010.01111137.52.85.69.9121211-1.59.48.512
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value312326318341332271269231241250260194149194216188194201192178182190155103116128762961335112451423.5121018229.8232014
Percentage of EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value4895235105275074384324214114074083343343583683373493413233083163233002332422652081111441091232242209035472092825250286245
Percentage of EquityMethodInvestmentSummarizedFinancialInformationRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:BalanceSheetLocation

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

dpm:CurrentAssets


Fair
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.0-3.0-3.07.0-2.03.07.00.010.03.01.00.0-4.03.04.02.0-2.00.00.00.0-1.04.0-1.02077291319-43.024418.05.03.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:CurrentLiabilities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-09-302018-06-30
Value-6.0-3.0-2.01.0-1.0-2.00.00.00.0-15.0-8.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss-600.00.00.0-33.333.3-28.6-0.00.00.0-500.0-800.0

dpm:LongTermAssets


Fair
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-1.0-2.04.00.0-1.0-1.01.00.00.01.01.0-1.0-3.02.00.0-2.0-1.00.00.0-2.00.00.00.0-18.0-9.0-12.0-22.0-15.0-90.0-33.016-5.00.0-6.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss-100.00.0-133.3-0.050.0-33.314.30.00.033.3100.00.075.066.70.0-100.050.00.00.00.0-0.00.0-0.0-90.0-11.7-41.4-169.2-78.9209.3-137.539.0-62.50.0-200.0

dpm:LongTermLiabilities


Fair
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-09-302018-06-30
Value-5.0-2.03.0-3.02.03.0-5.00.02.0-4.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss-500.00.0-100.0100.028.6-150.0-166.70.066.7-400.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:BalanceSheetLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

dpm:CurrentAssets


Fair
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-30
Value1.00.0-1.0-7.08.02.07.010.0-4.0124.01.00.010.00.03.02.03.02.00.01.03.07.0-1.02089321317-3.09.045-8.05.0-2.2-33.8-1.0-0.5
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:LongTermAssets


Fair
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-06-30
Value-1.0-3.04.00.01.0-1.0-1.01.0-1.00.01.01.0-1.02.02.00.0-3.02.00.00.0-2.00.00.00.0-18.0-9.0-11.0-22.0-15.0-28.0-33.0165.01.0-6.2-7.6-0.1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-100.00.0-400.0-0.012.5-50.0-14.310.025.00.025.0100.00.020.00.00.0-150.066.70.00.0-200.00.00.0-0.0-90.0-10.1-34.4-169.2-88.2933.3-366.735.6-62.520.0281.822.520.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements us-gaap:BalanceSheetLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements

dpm:CurrentAssets


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-06-30
Value0.00.00.04.09.0-2.0-1.03.03.00.00.01.0110.01.03.00.00.00.02235363440282018129.01819110.07.0-4.8-0.1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements0.00.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

dpm:CurrentLiabilities


Fair
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302018-09-302018-06-302013-09-302013-06-302012-06-302011-06-30
Value1.01.0-2.0-1.0-1.07.02.00.00.0-1.51.3
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements0.00.00.050.0100.00.00.00.00.031.2-1300.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3 us-gaap:BalanceSheetLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

dpm:CurrentLiabilities


Fair
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302018-09-302018-06-302011-06-30
Value-2000000.02000000.00005000000.08000000.01300000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3100.0100.00.00.00.0100.0100.0100.0

dpm:LongTermAssets


Fair
Period End2020-12-312020-06-302019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-09-302016-06-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-1000000.0-1000000.000000000000000004000000.0-2000000.000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:LongTermLiabilities


Fair
Period End2021-06-302020-06-302019-09-302019-06-302018-09-302018-06-302011-06-30
Value-1000000.0000001500000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel350.00.00.00.00.00.0115.4

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings us-gaap:BalanceSheetLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

dpm:CurrentLiabilities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-30
Value-8.0-5.0-3.0-1.02.05.0-1.01.01.0-2.022-20.0-14.04.0-24.0-26.01.08.0-7.00.00.00.00.00.00.00.00.00.00.01.00.01.00.01.0-0.8-1.0-4.0-2.0-2.1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0

dpm:LongTermLiabilities


Fair
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-09-30
Value-5.00.03.0-3.02.04.0-5.01.01.03.02.0-4.0-2.00.00.00.0-3.0-5.01.00.03.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.3
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings62.5-0.0-300.0-150.040.0-400.0-500.0100.0-50.013.6-10.028.6-50.0-0.0-0.00.0-37.571.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.0-0.0-0.0-14.3

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements us-gaap:BalanceSheetLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

dpm:CurrentLiabilities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-09-30
Value0.04.01.00.0-1.0-7.01.0-1.0-1.01.06.07.02.01.0292.02.07.00.00.00.00.00.00.00.00.00.00.0-1.00.00.00.00.00.0-0.1-0.1-2.0-2.6
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements0.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.0100.00.00.00.00.00.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2020-12-312020-09-30
Value01000000.0
Percentage of FinanceLeaseInterestExpense0.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value1000000.01000000.01000000.01000000.01000000.01000000.000
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0100.0100.00.00.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2020-12-31
Value0
Percentage of FinanceLeasePrincipalPayments0.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-06-30
Value01000000.001000000.01000000.00
Percentage of FinanceLeaseRightOfUseAssetAmortization0.0100.00.0100.0100.00.0

us-gaap:GoodwillImpairmentLossNetOfTax

us-gaap:GoodwillImpairmentLossNetOfTax


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.00.00.01590.0350.00.00.00.0
Percentage of GoodwillImpairmentLossNetOfTax0.00.00.0100.00.0100.00.00.00.00.0

us-gaap:GoodwillImpairmentLossNetOfTax us-gaap:StatementBusinessSegments

dpm:GatheringandProcessing


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.00.00.01590.00.00.00.00.00.0
Percentage of GoodwillImpairmentLossNetOfTax0.00.00.0100.00.00.00.00.00.00.0

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:ImpairmentOfIntangibleAssetsFinitelived


Impairment
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.022-11.00.00.0
Percentage of ImpairmentOfIntangibleAssetsFinitelived0.0100.0100.00.00.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value131128116130125761301141171139210496786974867455575349525444232729163.010.07.08.08.0128.92.05.78.310.010.08.69.28.26.414
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value4.08.00.0-2.00.0-61.02.01.03.00.03.02.02.01.01.015242021201715
Percentage of IncomeLossFromEquityMethodInvestments3.16.20.0-1.50.0-80.31.50.92.60.03.31.92.11.31.420.327.927.038.235.132.130.6

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1271201161321251371281131141138910294776859625447555651
Percentage of IncomeLossFromEquityMethodInvestments96.993.8100.0101.5100.0180.398.599.197.4100.096.798.197.998.798.679.772.173.085.596.5105.7104.1

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

dpm:CheyenneConnector


Income
Period End2021-06-302021-03-312020-12-312020-09-30
Value1.03.03.03.0
Percentage of IncomeLossFromEquityMethodInvestments0.82.32.62.3

dpm:Discovery


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.08.00.0-3.01.0-61.02.01.03.00.04.01.02.01.02.014252023201615202116-2.02.04.03.0-1.01.0-1.01.00.03.13.82.05.75.66.95.74.55.24.16.3
Percentage of IncomeLossFromEquityMethodInvestments2.36.20.0-2.30.8-80.31.50.92.60.04.31.02.11.32.918.929.127.041.835.130.230.638.538.936.4-8.77.413.818.8-33.310.0-14.312.50.025.242.7100.0100.067.569.057.052.356.550.098.4

dpm:FrontRange


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value9.09.09.09.09.0119.07.09.07.08.06.05.05.05.05.03.04.05.05.04.05.04.06.03.04.02.02.0-1.0-1.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments6.97.07.86.97.214.56.96.17.76.28.75.85.26.47.26.83.55.49.18.87.510.27.711.16.817.47.46.9-6.2-33.30.00.0

dpm:GulfCoastExpress


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value151517171616198.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments11.511.714.713.112.821.114.67.00.00.0

dpm:MontBelvieuEnterpriseFractionator


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-2.01.01.04.03.03.04.03.03.04.00.03.03.04.03.03.04.03.04.04.04.04.04.03.04.04.04.04.00.04.05.03.02.04.02.62.70.0
Percentage of IncomeLossFromEquityMethodInvestments-1.50.80.93.12.43.93.12.62.63.50.02.93.15.14.34.14.74.17.37.07.58.27.75.69.117.414.813.80.0133.350.042.925.050.021.130.30.0

dpm:MontBelvieuOneFractionator


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value4.02.03.03.03.03.02.03.04.04.04.04.04.04.00.02.03.01.03.02.03.02.03.03.02.01.04.04.04.01.05.05.05.04.03.72.30.0
Percentage of IncomeLossFromEquityMethodInvestments3.11.62.62.32.43.91.52.63.43.54.33.84.25.10.02.73.51.45.53.55.74.15.85.64.54.314.813.825.033.350.071.462.550.030.125.80.0

dpm:OtherUnconsolidatedAffiliates


Income
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-03-31
Value2.01.01.0-2.02.00.00.00.02.00.01.00.01.01.0-1.00.02.00.01.01.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments1.50.90.8-1.62.60.00.00.01.80.01.00.01.31.4-1.40.02.70.01.81.90.00.0

dpm:SandHillsPipeline


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value72625873707875727268536458484337373114161714151514119.09.06.00.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments55.048.450.056.256.0102.657.763.261.560.257.661.560.461.562.350.043.041.925.528.132.128.628.827.831.847.833.331.037.50.00.00.0

dpm:SouthernHillsPipeline


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value22241919202015172223182116131310.013114.07.06.07.04.03.04.03.05.04.04.00.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments16.818.816.414.616.026.311.514.918.820.419.620.216.716.718.813.515.114.97.312.311.314.37.75.69.113.018.513.825.00.00.00.0

dpm:TexasExpress


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.04.05.04.05.04.04.03.04.05.05.04.08.02.02.04.01.02.02.02.02.02.02.03.01.02.01.02.0-1.0-1.0-1.00.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments3.83.14.33.14.05.33.12.63.44.45.43.88.32.62.95.41.22.73.63.53.84.13.85.62.38.73.76.9-6.2-33.3-10.00.00.00.0

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncreaseDecreaseInAccountsPayableTrade


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value891701835723-310.04867-277.029-423.0213193-151.01493167.0-144.043-6.0-2.0-10.0-10.06.0-27.0-59.0-45.0-3.0-3.0-16.052-73.0-5.077-37.643-63.4-75.76213-14.8-15.150-2.1-33.2-9.3
Percentage of IncreaseDecreaseInAccountsPayableTrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2020-09-302020-06-302019-06-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value319350.0325570.0020370.022459.0-2865.026466.028510.051925.02713.074299.075560.035998.0000
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:InterestCostsCapitalized

us-gaap:InterestCostsCapitalized


Interest
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1.04.01.00.02.01.02.05.05.04.04.06.05.03.02.01.01.00.01.01.01.00.01.02.03.03.02.02.01.04.04.03.02.02.31.91.81.20.90.20.3
Percentage of InterestCostsCapitalized100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWriteDown

us-gaap:InventoryWriteDown


Inventory
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value0.0-12.02.04.02.00.03.05.00.00.00.00.02.00.00.00.00.00.00.03.02.01.01.04.0192.00.03.00.01.03.00.01.014
Percentage of InventoryWriteDown0.0100.0100.0100.0100.00.0100.0100.00.00.00.00.0100.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.0100.0100.0

us-gaap:LaborAndRelatedExpense us-gaap:IncomeStatementLocation

us-gaap:LaborAndRelatedExpense

us-gaap:GeneralAndAdministrativeExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value392652433535534544475151473866463931554748
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value383939393844494950495354535048504950485152
Percentage of LaborAndRelatedExpense97.4150.075.090.7108.6125.792.5108.9113.6104.3103.9105.9112.8131.672.7108.7125.6161.387.3108.5108.3

us-gaap:RestructuringCosts


Labor
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value0.00.09.00.02.09.00.00.00.0
Percentage of LaborAndRelatedExpense0.00.025.70.04.420.50.00.00.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.010.08.0129.0111110.07.09.0
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest dei:LegalEntity, us-gaap:Ownership

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest

dpm:DCPMidstreamLLC, dpm:DcpMidstreamLp


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value057.0056.4300.570.189000.38100
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest0.0100.00.0100.00.0100.0100.00.00.0100.00.00.0

us-gaap:NetIncomeLossAllocatedToLimitedPartners

us-gaap:NetIncomeLossAllocatedToLimitedPartners


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-46.039719632-564.0-14.0-228.06220392610.01214-59.04759448914415940-33.038168862.0478.0-20.0863152-9.56812-8.25935-11.4-4.5-8.22122
Percentage of NetIncomeLossAllocatedToLimitedPartners100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted

us-gaap:NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted


Net
Period End2020-09-302020-06-302019-09-302019-06-302013-12-312013-09-302012-12-312012-09-30
Value0.460.15-1.590.430.05-0.240.92-0.16
Percentage of NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted

us-gaap:NetIncomeLossPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-06-302012-03-31
Value-0.220.190.340.460.15-2.71-0.08-1.590.430.140.280.180.070.080.1-0.410.330.410.38775940.0122060.00.360.51348740.0-287710.00.331.48774770.018450.00.50.09-0.241.110.481.330.26
Percentage of NetIncomeLossPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax

us-gaap:NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-0.220.190.340.460.15-2.71-0.03-1.590.430.09-0.241.110.480.87-0.161.330.26
Percentage of NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.07.06.07.06.08.07.06.05.06.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.08.07.06.07.07.07.06.06.06.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-30
Value165149160146148153181187182178217196185162148168178167424845485858514762535645595651453135504236
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating dei:LegalEntity, us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty

dpm:Enbridge, dpm:NaturalGasNGLsandCondensate, srt:AffiliatedEntity


Other
Period End2020-12-312020-09-302020-06-302019-06-30
Value1.00.01.00.0
Percentage of OtherCostAndExpenseOperating0.60.00.70.0

us-gaap:OtherCostAndExpenseOperating dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty

dpm:PhillipsSixtySix, srt:AffiliatedEntity


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.02.01.04.02.04.03.03.03.04.03.04.03.03.0
Percentage of OtherCostAndExpenseOperating2.41.30.62.71.42.61.71.61.62.21.42.01.61.9

us-gaap:OtherCostAndExpenseOperating us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.03.05.03.05.04.06.06.0-6.04.06.07.05.03.05.05.03.05.01.02.05.08.0
Percentage of OtherCostAndExpenseOperating4.22.03.12.13.42.63.33.2-3.32.22.83.62.71.93.43.01.73.02.44.211.116.7

us-gaap:OtherCostAndExpenseOperating us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value146140143135134142162172-165.0165200175169148133154162153153146151161
Percentage of OtherCostAndExpenseOperating88.594.089.492.590.592.889.592.0-90.792.792.289.391.491.489.991.791.091.6364.3304.2335.6335.4

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value126.0128.09.07.0139.0-11.09.01114111110.09.0139.010.01310.010.0
Percentage of OtherCostAndExpenseOperating7.34.07.55.56.14.67.24.8-6.05.15.17.15.96.86.85.47.35.423.827.122.220.8

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value2.02.0-5.03.07.01730-3.00.0-6.0-2.0-4.0-3.0-6.0-3.0-8.0-8.0-13.01.0-6.0-5.0-2.0-9.0-2.00.0-2.0-7.0-2.0-3.0-2.0-6.0-2.0-2.0-4.0-1.3-0.9-0.2-0.4-0.9-9.68.1-2.0-0.3
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-06-302012-03-312011-06-302011-03-31
Value-6.03.04.05.03.02.00.01.0-5.0-4.0-2.0-3.0-2.04.00.0-5.0-10.00.0-4.0-3.0874.01.0-1.00.0-2.00.00.0-1.0-5.0-1.00.0-4.00.20.10.10.1
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.04.0-2.00.00.00.00.00.00.0-1.00.00.00.01.00.0-1.0-2.0-1.00.00.0
Percentage of OtherOperatingIncomeExpenseNet0.0100.0-40.00.00.00.00.0-0.0-0.050.0-0.0-0.00.00.0-0.010.00.025.0-0.00.0

us-gaap:OtherOperatingIncomeExpenseNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.0-1.02.01.03.00.010.00.0-5.0-2.0-1.00.0-3.03.00.0-3.00.0-1.0-13.00.087
Percentage of OtherOperatingIncomeExpenseNet16.7-33.350.020.0100.00.00.00.0100.050.050.0-0.0150.075.00.060.0-0.00.0325.0-0.0100.0

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-5.04.02.0-4.00.02.02.0-1.00.0-2.00.0-3.01.01.0-1.0-2.0-9.00.00.0-5.00.0
Percentage of OtherOperatingIncomeExpenseNet83.3133.350.0-80.00.0100.00.0-100.0-0.050.0-0.0100.0-50.025.00.040.090.00.0-0.0166.70.0

us-gaap:PartnersCapitalAccountDistributions

us-gaap:PartnersCapitalAccountDistributions


Partners
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-02-142018-03-312017-11-142017-12-312017-08-142017-09-302017-05-152017-06-302017-02-142017-03-312016-11-142016-12-312016-08-122016-09-302016-05-132016-06-302016-02-122016-03-312015-11-132015-12-312015-08-142015-09-302015-05-152015-06-302015-02-132015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1058688104167160-178.0159178158-176.01941941551551341341351351211211201211211201211211211211201201211211211211201201171111068682726954310-208.1116-36.7-34.9-34.1-33.3-30.1-27.5-25.3-24.5-24.6
Percentage of PartnersCapitalAccountDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountDistributions us-gaap:PartnerTypeOfPartnersCapitalAccount

dpm:SeriesAPreferredLimitedPartners


Partners
Period End2021-06-152021-06-302020-12-152020-06-152020-06-302020-03-312019-12-162019-09-302019-06-172019-06-302019-03-312018-12-172018-12-312018-09-302018-06-152018-06-302018-03-312017-05-15
Value18181918180.0190.018-18.00.018600.021-21.00.021
Percentage of PartnersCapitalAccountDistributions17.10.00.017.30.00.00.00.010.10.00.033.70.00.011.90.00.015.6

dpm:SeriesBPreferredLimitedPartners


Partners
Period End2021-06-152021-06-302021-03-152021-03-312020-12-152020-09-152020-09-302020-06-152020-06-302020-03-162020-03-312019-12-162019-09-162019-09-302019-06-172019-06-302019-03-152019-01-152019-03-312018-12-172018-12-312018-09-172018-09-302018-06-302018-03-31
Value3.03.03.03.04.03.03.03.03.03.03.04.03.03.03.0-3.03.02.03.03.0114.04.00.00.0
Percentage of PartnersCapitalAccountDistributions2.90.03.50.00.03.40.02.90.01.80.00.01.90.01.70.01.90.00.06.20.02.50.0-0.00.0

dpm:SeriesCPreferredLimitedPartnersMember


Partners
Period End2021-04-152021-06-302021-01-152021-03-312020-10-152020-07-152020-09-302020-04-152020-06-302020-01-152020-03-312019-10-152019-07-152019-09-302019-04-152019-06-302019-01-152019-03-31
Value2.02.02.02.02.03.03.02.02.02.02.02.03.03.02.0-2.02.02.0
Percentage of PartnersCapitalAccountDistributions1.90.02.30.00.03.40.01.90.01.20.00.01.90.01.10.01.30.0

us-gaap:LimitedPartner


Partners
Period End2021-05-142021-06-302021-02-122021-03-312020-11-132020-08-142020-09-302020-05-152020-06-302020-02-142020-03-312019-11-142019-08-142019-09-302019-05-152019-06-302019-02-142019-03-312018-11-142018-12-312018-08-142018-09-302018-05-152018-06-302018-02-142018-03-312017-11-142017-12-312017-08-142017-09-302017-05-152017-06-302017-02-142017-03-312016-11-142016-12-312016-08-122016-09-302016-05-132016-06-302016-02-122016-03-312015-12-31
Value828281818182828181162162155154112155-112.0154111155112154112155-112.0194111155112134111135112121901209012189121901219089
Percentage of PartnersCapitalAccountDistributions78.10.094.20.00.093.20.077.90.097.00.00.070.00.062.90.069.80.062.90.070.90.063.60.057.2100.072.3100.082.8100.083.0100.074.4100.074.4100.074.2100.074.4100.074.4100.074.2

us-gaap:PaymentsOfCapitalDistribution

us-gaap:PaymentsOfCapitalDistribution


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value8281818281162155154155154155154155194155134135121121120121121120121121120420-192.010686827269545349
Percentage of PaymentsOfCapitalDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-12-312020-09-302019-12-312019-09-30
Value0.02.04.00.0
Percentage of PaymentsOfDebtIssuanceCosts0.0100.0100.00.0

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireEquityMethodInvestments


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value0.0126134124560.00.00.00.0-1.05.00.0669-610.02105.048129
Percentage of PaymentsToAcquireEquityMethodInvestments0.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.01.02.01.01.01.01.01.00.00.00.00.00.03960.0-198.00.00.00.00.0
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.00.0100.00.00.00.00.0

us-gaap:ProceedsFromDebtNetOfIssuanceCosts

us-gaap:ProceedsFromDebtNetOfIssuanceCosts


Proceeds
Period End2020-09-30
Value494
Percentage of ProceedsFromDebtNetOfIssuanceCosts100.0

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital


Proceeds
Period End2020-12-312020-09-302013-12-312013-09-302012-12-312012-09-302012-06-302012-03-31
Value1000000.00000001000000.0
Percentage of ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital100.00.00.00.00.00.00.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.04.0-3.0-2.0-4.00.0-8.0-1.00.0-7.00.00.0-6.00.0-1.0-1.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities0.0100.0100.0100.0100.00.0100.0100.00.0100.00.00.0100.00.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.02.00.00.05423291031.00.00.03.02.01.01290.02.01420.00.00.00.06.05.0161.00.00.00.00.00.10.10.00.15.00.00.00.21.70.01.50.2
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment0.0100.00.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.00.0100.0100.00.00.00.00.0100.0100.0100.0100.00.00.00.00.0100.0100.00.0100.0100.00.00.0100.0100.00.0100.0100.0

us-gaap:RestructuringCosts

us-gaap:RestructuringCosts


Restructuring
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-30
Value0.00.09.00.02.09.00.00.00.00.00.00.03.02.08.0
Percentage of RestructuringCosts0.00.0100.00.0100.0100.00.00.00.00.00.00.0100.0100.0100.0

us-gaap:RestructuringCosts us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Restructuring
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302016-12-312016-09-302016-06-30
Value0.00.09.00.02.0-9.03.02.08.0
Percentage of RestructuringCosts0.00.0100.00.0100.0-100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


Right
Period End2020-12-312020-09-302019-12-312019-09-30
Value0.04.0205.0
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability0.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.06.00.00.024270.06.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.00.00.0100.0100.00.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value01000000.01000000.01000000.01000000.01000000.01000000.02000000.01000000.01000000.0
Percentage of ShortTermLeaseCost0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivatives us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:Nondesignated, us-gaap:CommodityContract


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-136.0-53.0-11.0-11.0-57.0134-37.0-26.039-54.0187-13.0
Percentage of UnrealizedGainLossOnDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivativesAndCommodityContracts

us-gaap:UnrealizedGainLossOnDerivativesAndCommodityContracts


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-136.0-53.0-11.0-11.0-57.0134-37.0-26.039-54.0187-13.0-37.0-29.0-29.0-59.02436-25.0-1.0-37.0-45.0-25.0-8.0-55.0-43.011316-29.0-14.0-35.0-49.058-10.02.4-22.565-23.8-25.959-21.0-33.9-15.618-22.57.8
Percentage of UnrealizedGainLossOnDerivativesAndCommodityContracts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivativesAndCommodityContracts us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dpm:GatheringandProcessing


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-101.0-48.0-14.0-39.0-62.092-23.0-5.015-36.0161-21.0-42.014-20.0-51.01631-46.0-5.0-29.0-39.0
Percentage of UnrealizedGainLossOnDerivativesAndCommodityContracts74.390.6127.3354.5108.868.762.219.238.566.786.1161.5113.5-48.369.086.466.786.1184.0500.078.486.7

us-gaap:OperatingSegments, dpm:LogisticsandMarketing


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-35.0-5.03.0285.042-14.0-21.024-18.0268.05.0-43.0-9.0-8.08.05.0-13.014-15.0-6.0
Percentage of UnrealizedGainLossOnDerivativesAndCommodityContracts25.79.4-27.3-254.5-8.831.337.880.861.533.313.9-61.5-13.5148.331.013.633.313.952.0-1400.040.513.3

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1000000.01000000.01000000.02000000.01000000.02000000.02000000.02000000.01000000.02000000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstanding

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstanding


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-09-30
Value2082080.02082082089.81431431430.01431431430.01431431430.01141141140.01141141142.311110893788.3e-057765-52.4999455584644
Percentage of WeightedAverageLimitedPartnershipUnitsOutstanding100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstandingDiluted

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstandingDiluted


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-09-30
Value2082080.02082082089.81431431431431430.01431431430.01141141140.00.10.31142.311110893788.3e-057765-52.5999455584744
Percentage of WeightedAverageLimitedPartnershipUnitsOutstandingDiluted100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value208208208208208143143
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0

dpm:DebtInstrumentCovenantsLimitedMaximumBorrowingAmount

dpm:DebtInstrumentCovenantsLimitedMaximumBorrowingAmount


Debt
Period End2021-03-31
Value1123
Percentage of DebtInstrumentCovenantsLimitedMaximumBorrowingAmount100.0

dpm:DebtInstrumentCovenantsMaximumBorrowingAmount us-gaap:CreditFacility

dpm:DebtInstrumentCovenantsMaximumBorrowingAmount

dpm:CreditAgreement


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value780133213901265110558611851175
Percentage of DebtInstrumentCovenantsMaximumBorrowingAmount100.0100.0100.0100.0100.0100.0100.0100.0

dpm:LeaseLiability

dpm:LeaseLiability


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value126119127127123130137
Percentage of LeaseLiability100.0100.0100.0100.0100.0100.0100.0

dpm:LettersofCreditReceivedfromCounterparty

dpm:LettersofCreditReceivedfromCounterparty


Lettersof
Period End2021-06-302021-03-312020-12-312020-09-30
Value871075451
Percentage of LettersofCreditReceivedfromCounterparty100.0100.0100.0100.0

dpm:LongTermDebtMaturitiesRepaymentsOfPrincipalTotal

dpm:LongTermDebtMaturitiesRepaymentsOfPrincipalTotal


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value5743568356255750
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalTotal100.0100.0100.0100.0

dpm:OfferValueOfCommonStockUnitRemainingAvailableForSale us-gaap:StatementEquityComponents

dpm:OfferValueOfCommonStockUnitRemainingAvailableForSale

dpm:EquityDistributionAgreement


Offer
Period End2021-06-302021-03-312020-12-312019-06-302014-09-302014-06-30
Value75075075075071101
Percentage of OfferValueOfCommonStockUnitRemainingAvailableForSale100.0100.0100.0100.0100.0100.0

dpm:RightOfUseAssets

dpm:RightOfUseAssets


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value113104110108113119132
Percentage of RightOfUseAssets100.0100.0100.0100.0100.0100.0100.0

dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageGrantDateFairValueExpectedtoVest us-gaap:AwardType

dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageGrantDateFairValueExpectedtoVest

us-gaap:PerformanceShares


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312017-03-31
Value26.5833.0743.5454.5244.35
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageGrantDateFairValueExpectedtoVest100.0100.0100.0100.0100.0

us-gaap:PhantomShareUnitsPSUs


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312017-03-31
Value22.3733.4242.5252.1346.72
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageGrantDateFairValueExpectedtoVest84.2101.197.795.6105.3

dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueEndingBalance us-gaap:AwardType

dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueEndingBalance

us-gaap:PerformanceShares


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312017-03-312016-12-31
Value18.5224.4934.355.6145.8645.86
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueEndingBalance100.0100.0100.0100.0100.0100.0

us-gaap:PhantomShareUnitsPSUs


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312017-03-312016-12-31
Value19.1524.4933.0862.5645.9745.97
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueEndingBalance103.4100.096.4112.5100.2100.2

dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueExpectedtoVest us-gaap:AwardType

dpm:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueExpectedtoVest

us-gaap:PerformanceShares


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312017-03-31
Value18.5224.4934.5359.3745.98
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueExpectedtoVest100.0100.0100.0100.0100.0

us-gaap:PhantomShareUnitsPSUs


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312017-03-31
Value19.1524.4933.0662.9945.9
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageMeasurementDateFairValueExpectedtoVest103.4100.095.7106.199.8

us-gaap:AccountsPayableOtherCurrent

us-gaap:AccountsPayableOtherCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value151923232226353429302340272219179.01410.0
Percentage of AccountsPayableOtherCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AccountsPayableRelatedPartiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value20719916111910297100102941169610611285685756513120192019231926273930284331242933146.7384645293137
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableRelatedPartiesCurrent dei:LegalEntity

dpm:Enbridge


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value4.03.02.02.00.00.02.02.02.02.02.05.021179.07.06.03.03.0
Percentage of AccountsPayableRelatedPartiesCurrent1.91.51.21.70.00.02.02.02.11.72.14.718.820.013.212.310.75.99.7

dpm:PhillipsSixtySix


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value12611689432327202422282225249.06.04.04.04.04.0
Percentage of AccountsPayableRelatedPartiesCurrent60.958.355.336.122.527.820.023.523.424.122.923.621.410.68.87.07.17.812.9

us-gaap:AccountsPayableRelatedPartiesCurrent us-gaap:ConsolidatedEntities

us-gaap:MajorityOwnedSubsidiaryUnconsolidated


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value778070747970787670867276675953
Percentage of AccountsPayableRelatedPartiesCurrent37.240.243.562.277.572.278.074.574.574.175.071.759.869.477.9

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsPayableTradeCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-12-312018-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value75766953639432963880727728211217013316814275788999
Percentage of AccountsPayableTradeCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableRelatedPartiesCurrent

us-gaap:AccountsReceivableRelatedPartiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value385321238150111981381281311761662271891421911381241049482867281122911301642222232262121841672138667631066957746961
Percentage of AccountsReceivableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableRelatedPartiesCurrent dei:LegalEntity

dpm:Enbridge


Accounts
Period End2021-06-302021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1.04.00.01.0148.0117.05.05.01.0
Percentage of AccountsReceivableRelatedPartiesCurrent0.31.20.00.47.45.65.85.14.04.81.1

dpm:PhillipsSixtySix


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312012-12-31
Value3582972171329181117109115146145198153117156113103851150.1
Percentage of AccountsReceivableRelatedPartiesCurrent93.092.591.288.082.082.784.885.287.883.087.387.281.082.481.781.983.181.7122.30.1

us-gaap:AccountsReceivableRelatedPartiesCurrent us-gaap:ConsolidatedEntities

us-gaap:MajorityOwnedSubsidiaryUnconsolidated


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value262021182017211916302128221724
Percentage of AccountsReceivableRelatedPartiesCurrent6.86.28.812.018.017.315.214.812.217.012.712.311.612.012.6

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value2000000.02000000.02000000.04000000.03000000.02000000.03000000.03000000.03000000.03000000.03000000.06000000.06000000.08000000.08000000.04000000.04000000.04000000.001000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.0300000.0500000.0400000.0300000.0300000.0300000.0300000.0500000.0500000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligation


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value150141140126124120
Percentage of AssetRetirementObligation100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:ValuationTechnique

us-gaap:AssetsFairValueDisclosure

us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasLiquidsReserves, us-gaap:MarketApproachValuationTechnique


Assets
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.01.09.04.06.08.05.0
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasReserves, us-gaap:MarketApproachValuationTechnique


Assets
Period End2021-06-302021-03-312020-12-312020-09-30
Value1.02.02.04.0
Percentage of AssetsFairValueDisclosure100.00.00.00.0

us-gaap:ConstructionPayableCurrent

us-gaap:ConstructionPayableCurrent


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value4.02.04.04.05.010.0281524286349333139171820202430243319161710
Percentage of ConstructionPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value34343535353433343334343435360.0
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value5754569356355761591659365936580155865391533751314861483547365235523552352066206420642064206323132312231223111590
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

dpm:SeniorNotesFivePointOneTwoFivePercentDueMayTwoThousandTwentyNine, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value6006006006006006006006006000.0
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

dpm:SeniorNotesFivePointSixTwoFivePercentDueJulyTwoThousandTwentySeven, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value5005005005005000.0
Percentage of DebtInstrumentFaceAmount83.383.383.383.383.30.0

dpm:SeniorNotesFivePointThreeSevenFivePercentDueJulyTwoThousandTwentyFive, us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-182018-12-312018-09-302017-12-31
Value8258258258258258258258258258253255005000.0
Percentage of DebtInstrumentFaceAmount137.5137.5137.5137.5137.5137.5137.5137.5137.50.00.00.00.00.0

us-gaap:DebtInstrumentFairValue

us-gaap:DebtInstrumentFairValue


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value6235599259385632559942526130593957435476517051994896495348855365536053072022202919411770165020282207215723341573
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtInstrumentUnamortizedDiscount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value6.07.07.07.08.08.08.09.09.09.010.010.01112121313149.0111111121213131414151510.010.010.0114.71.71.71.80.20.20.2
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtLongtermAndShorttermCombinedAmount

us-gaap:DebtLongtermAndShorttermCombinedAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value57425682562457485900592459245766555053615307510048354808470752115210520922502424242924122312231123112310233119251620
Percentage of DebtLongtermAndShorttermCombinedAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtWeightedAverageInterestRate us-gaap:CreditFacility

us-gaap:DebtWeightedAverageInterestRate

dpm:AccountsReceivableSecuritizationFacility


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.01.011.041.050.01060.01880.02660.02920.0320.033030.033030.03061
Percentage of DebtWeightedAverageInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:CreditAgreement


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-12-312012-12-312012-09-302012-06-302011-12-31
Value1.510.015420.021570.03080.034130.039010.039010.039010.034520.01470.01470.01480.0150.0169
Percentage of DebtWeightedAverageInterestRate143.8145.5114.7115.8116.9121.9118.1118.1112.80.00.00.00.00.0

us-gaap:DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge

us-gaap:DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value17171718181919202020212122222323232424
Percentage of DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeAssets

us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value1147579131127305347971371167653253336513547
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeCollateralRightToReclaimCash

us-gaap:DerivativeCollateralRightToReclaimCash


Derivative
Period End2021-06-302021-03-312020-12-312020-09-30
Value152581421
Percentage of DerivativeCollateralRightToReclaimCash100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:DerivativeFairValueOfDerivativeAsset

dpm:CurrentAssets, us-gaap:FairValueInputsLevel1, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value5521215974233134431166244361710.09.0188.01.00.00.00.0
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

dpm:CurrentAssets, us-gaap:FairValueInputsLevel2, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value48374232231115262714329.08.05.01721211515202983
Percentage of DerivativeFairValueOfDerivativeAsset87.3176.2200.054.231.14.7115.459.187.187.551.620.522.229.4170.0233.3116.7187.51500.00.00.00.0

dpm:CurrentAssets, us-gaap:FairValueInputsLevel3, us-gaap:Commodity


Derivative
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value1.01.08.04.05.08.05.0144.01.02.03.02.07.08.00.00.00.022
Percentage of DerivativeFairValueOfDerivativeAsset1.81.43.430.811.425.831.222.69.12.811.830.022.238.9100.00.00.00.00.0

dpm:LongTermAssets, us-gaap:FairValueInputsLevel1, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value5.04.01.01624471.01.00.00.04.0156.01.01.01.02.01.00.00.00.00.0
Percentage of DerivativeFairValueOfDerivativeAsset9.119.04.827.132.420.27.72.30.00.06.534.116.75.910.011.111.112.50.00.00.00.0

dpm:LongTermAssets, us-gaap:FairValueInputsLevel2, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value4.01113205.05.01.02.03.01.02.02.01.00.01.02.01.01.00.03.05.09.0
Percentage of DerivativeFairValueOfDerivativeAsset7.352.461.933.96.82.17.74.59.76.23.24.52.80.010.022.25.612.50.00.00.00.0

dpm:LongTermAssets, us-gaap:FairValueInputsLevel3, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value1.02.02.04.00.01.00.01.02.01.02.02.01.00.01.01.02.02.00.00.00.00.0
Percentage of DerivativeFairValueOfDerivativeAsset1.89.59.56.80.00.40.02.36.56.23.24.52.80.010.011.111.125.00.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:BalanceSheetLocation, us-gaap:InvestmentType

dpm:CurrentAssets, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value104586391982523275663510857452430324631162029105
Percentage of DerivativeFairValueOfDerivativeAsset189.1276.2300.0154.2132.4108.2246.2170.5212.9218.8174.2129.5125.0141.2300.0355.6255.6387.51600.00.00.00.0

dpm:LongTermAssets, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value10.017164029532.04.05.02.08.0198.01.03.04.05.04.00.03.05.09.0
Percentage of DerivativeFairValueOfDerivativeAsset18.281.076.267.839.222.715.49.116.112.512.943.222.25.930.044.427.850.00.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:DerivativeInstrumentRisk

us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value1147579131127305347971371167653253336513547
Percentage of DerivativeFairValueOfDerivativeAsset207.3357.1376.2222.0171.6130.9261.5179.5229.0231.2187.1172.7147.2147.1330.0400.0283.33500.00.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:DerivativeFairValueOfDerivativeLiability

dpm:CurrentLiabilities, us-gaap:FairValueInputsLevel1, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value91411937411691532261439827745296.0127.01.00.00.00.0
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

dpm:CurrentLiabilities, us-gaap:FairValueInputsLevel2, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value94323445222042342746525754453428152123112018
Percentage of DerivativeFairValueOfDerivativeLiability103.378.0178.9121.653.711.8280.0106.2103.8328.6133.369.570.1100.0117.2466.7125.0300.02300.00.00.00.0

dpm:CurrentLiabilities, us-gaap:FairValueInputsLevel3, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value9.04.03.01.03.03.01.01.01.01.00.01810.06.0138.02.08.05.00.00.00.0
Percentage of DerivativeFairValueOfDerivativeLiability9.99.815.82.77.31.86.73.13.87.10.022.013.013.344.8133.316.7114.3500.00.00.00.0

dpm:LongTermLiabilities, us-gaap:FairValueInputsLevel1, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value10.05.01317342.01.00.00.01.025122.03.02.01.00.00.00.00.00.0
Percentage of DerivativeFairValueOfDerivativeLiability11.012.235.141.520.113.33.10.00.02.630.515.64.410.333.38.30.00.00.00.00.0

dpm:LongTermLiabilities, us-gaap:FairValueInputsLevel2, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value257.06.015161115145.04.05.07.010.019116.03.04.00.00.00.01.0
Percentage of DerivativeFairValueOfDerivativeLiability27.517.131.640.539.06.5100.043.819.228.612.88.513.042.237.9100.025.057.10.00.00.00.0

dpm:LongTermLiabilities, us-gaap:FairValueInputsLevel3, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value5.01.01.01.04.01.03.05.00.01.02.05.07.03.01.02.03.03.00.00.00.00.0
Percentage of DerivativeFairValueOfDerivativeLiability5.52.45.32.79.80.620.015.60.07.15.16.19.16.73.433.325.042.90.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:BalanceSheetLocation, us-gaap:InvestmentType

dpm:CurrentLiabilities, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value194775683661925867546191157141967642293629112018
Percentage of DerivativeFairValueOfDerivativeLiability213.2187.8294.7224.3161.0113.6386.7209.4207.7435.7233.3191.5183.1213.3262.1700.0241.7514.32900.00.00.00.0

dpm:LongTermLiabilities, us-gaap:Commodity


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value40137.029374620205.05.08.03729241510.07.07.00.00.00.01.0
Percentage of DerivativeFairValueOfDerivativeLiability44.031.736.878.490.227.2133.362.519.235.720.545.137.753.351.7166.758.3100.00.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:DerivativeInstrumentRisk

us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-234.0-90.0-63.0-112.0-103.023878875966991941701209152364392
Percentage of DerivativeFairValueOfDerivativeLiability-257.1-219.5-331.6-302.7-251.2140.8520.0271.9226.9471.4253.8236.6220.8266.7313.8866.7300.0614.39200.0

us-gaap:DerivativeForwardPrice us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:ValuationTechnique

us-gaap:DerivativeForwardPrice

srt:Maximum, us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasLiquidsReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.590.790.471.21.061.151.24
Percentage of DerivativeForwardPrice100.0100.0100.0100.0100.0100.0100.0

srt:Maximum, us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-12-312020-09-30
Value2.962.742.682.68
Percentage of DerivativeForwardPrice186.20.00.00.0

srt:Minimum, us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasLiquidsReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.310.180.110.170.180.20.24
Percentage of DerivativeForwardPrice19.522.823.414.217.017.419.4

srt:Minimum, us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-12-312020-09-30
Value2.341.851.841.9
Percentage of DerivativeForwardPrice147.20.00.00.0

srt:WeightedAverage, us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasLiquidsReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302020-06-302020-03-31
Value0.710.340.33
Percentage of DerivativeForwardPrice44.743.070.2

srt:WeightedAverage, us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, srt:NaturalGasReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-12-312020-09-30
Value2.552.251.931.86
Percentage of DerivativeForwardPrice160.40.00.00.0

us-gaap:DerivativeForwardPrice us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:InvestmentType, us-gaap:ValuationTechnique

srt:Maximum, us-gaap:FairValueInputsLevel3, us-gaap:DerivativeFinancialInstrumentsLiabilities, srt:NaturalGasLiquidsReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.591.321.080.890.790.531.181.061.151.24
Percentage of DerivativeForwardPrice100.00.00.00.0100.0112.898.3100.0100.0100.0

srt:Maximum, us-gaap:FairValueInputsLevel3, us-gaap:DerivativeFinancialInstrumentsLiabilities, srt:NaturalGasReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-30
Value2.962.862.562.52.492.29
Percentage of DerivativeForwardPrice186.20.0324.1531.9207.5216.0

srt:Minimum, us-gaap:FairValueInputsLevel3, us-gaap:DerivativeFinancialInstrumentsLiabilities, srt:NaturalGasLiquidsReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.280.220.220.140.140.10.120.10.090.13
Percentage of DerivativeForwardPrice17.60.00.00.017.721.310.09.47.810.5

srt:Minimum, us-gaap:FairValueInputsLevel3, us-gaap:DerivativeFinancialInstrumentsLiabilities, srt:NaturalGasReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-30
Value1.751.851.51.631.661.56
Percentage of DerivativeForwardPrice110.10.0189.9346.8138.3147.2

srt:WeightedAverage, us-gaap:FairValueInputsLevel3, us-gaap:DerivativeFinancialInstrumentsLiabilities, srt:NaturalGasLiquidsReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.730.610.640.430.380.27
Percentage of DerivativeForwardPrice45.90.00.00.048.157.4

srt:WeightedAverage, us-gaap:FairValueInputsLevel3, us-gaap:DerivativeFinancialInstrumentsLiabilities, srt:NaturalGasReserves, us-gaap:MarketApproachValuationTechnique


Derivative
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.112.251.81.99
Percentage of DerivativeForwardPrice132.70.0227.8423.4

us-gaap:DerivativeInstrumentsAndHedges

us-gaap:DerivativeInstrumentsAndHedges


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value1045863919825232756635108574524303246311620294810513113119623094788679859776494753385.25.61.9
Percentage of DerivativeInstrumentsAndHedges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsAndHedges us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

dpm:DerivativeAssetNotDesignatedAsHedgingInstruments, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value10458639198252327566351085745243032463116202948105131131196230947886798597764941
Percentage of DerivativeInstrumentsAndHedges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0792.3

us-gaap:DerivativeInstrumentsAndHedgesLiabilities

us-gaap:DerivativeInstrumentsAndHedgesLiabilities


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value194775683661925867546191157141967691314331524233475443
Percentage of DerivativeInstrumentsAndHedgesLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsAndHedgesLiabilities us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

dpm:DerivativeLiabilitiesNotDesignatedAsHedgingInstruments, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value19477568366192586754619115714196764229362911205.0182818334312172726-23.6-43.8
Percentage of DerivativeInstrumentsAndHedgesLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.031.90.00.00.00.00.00.00.00.00.00.00.00.0-76.1-103.1

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value40137.029374620205.05.08.03729241510.07.07.00.00.00.00.01.00.02.06.01.01.03.03.06.07.71332
Percentage of DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

dpm:DerivativeLiabilitiesNotDesignatedAsHedgingInstruments, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value40137.029374620205.05.08.03729241510.07.07.00.00.00.00.01.00.00.00.00.02.06.01.01.03.03.0-5.0-5.7-25.2
Percentage of DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0-83.3-74.0-76.8

us-gaap:DerivativeInstrumentsAndHedgesNoncurrent

us-gaap:DerivativeInstrumentsAndHedgesNoncurrent


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value10.017164029532.04.05.02.08.0198.01.03.04.05.04.00.03.05.07.09.01715203933426987112146128693743316.3111.4
Percentage of DerivativeInstrumentsAndHedgesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsAndHedgesNoncurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

dpm:DerivativeAssetNotDesignatedAsHedgingInstruments, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value10.017164029532.04.05.02.08.0198.01.03.04.05.04.00.03.05.07.09.01715203933426987112146128696.4
Percentage of DerivativeInstrumentsAndHedgesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0101.6

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue

dpm:DerivativeAssetNotDesignatedAsHedgingInstruments, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value114757913112730534797137116765325333651351623345511414814621626912712015516619724320411947
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue

dpm:DerivativeLiabilitiesNotDesignatedAsHedgingInstruments, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value23490631121032387887596699194170120915236432911205.019281833431423282730
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeLiabilities

us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-234.0-90.0-63.0-112.0-103.023878875966991941701209152364392
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value32287047292558453125645242256543382572
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:PerformanceShares


Employee
Period End2020-12-312019-12-312018-12-312017-12-312017-03-31
Value4000000.04000000.04000000.07000000.05000000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0100.0100.0100.0100.0

us-gaap:PhantomShareUnitsPSUs


Employee
Period End2020-12-312019-12-312018-12-312017-12-312017-03-31
Value8000000.04000000.04000000.04000000.04000000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions200.0100.0100.057.180.0

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity

dpm:CheyenneConnector


Equity
Period End2020-12-31
Value4.0
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity100.0

dpm:Discovery


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value-8.0-13.0-15.0-18.0-20.0-25.0-28.028293030303132
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity-200.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:FrontRange


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312013-09-30
Value4.04.04.04.05.05.04.03.0
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity100.00.00.00.00.00.00.00.0

dpm:GulfCoastExpress


Equity
Period End2020-12-312019-12-312018-12-31
Value1.01.00.0
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity25.00.00.0

dpm:SandHillsPipeline


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312014-09-302014-06-302014-03-31
Value60561963464866210.010.010.010.0
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity15125.00.00.00.00.00.00.00.00.0

dpm:SouthernHillsPipeline


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312014-09-302014-06-302014-03-31
Value1351391421451488.08.08.08.0
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity3375.00.00.00.00.00.00.00.00.0

dpm:TexasExpress


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-31
Value2.03.03.03.03.03.03.0
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity50.00.00.00.00.00.00.0

us-gaap:EquityMethodInvestmentOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentOwnershipPercentage

dpm:CheyenneConnector


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value50.050.050.050.00.50.50.5
Percentage of EquityMethodInvestmentOwnershipPercentage100.0100.0100.0100.0100.0100.0100.0

dpm:Discovery


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value40.040.040.040.00.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.4
Percentage of EquityMethodInvestmentOwnershipPercentage80.080.080.080.080.080.080.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:FrontRange


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value33.3333.3333.3333.330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33
Percentage of EquityMethodInvestmentOwnershipPercentage66.766.766.766.766.766.766.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:GulfCoastExpress


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value25.025.025.025.00.250.250.250.250.250.250.250.250.250.25
Percentage of EquityMethodInvestmentOwnershipPercentage50.050.050.050.050.050.050.00.00.00.00.00.00.00.0

dpm:MontBelvieuEnterpriseFractionator


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value12.512.512.512.50.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.1250.125
Percentage of EquityMethodInvestmentOwnershipPercentage25.025.025.025.025.025.025.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:MontBelvieuOneFractionator


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value20.020.020.020.00.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.2
Percentage of EquityMethodInvestmentOwnershipPercentage40.040.040.040.040.040.040.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:PanolaPipelineCompanyLLC


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value15.015.015.015.00.150.150.150.150.150.150.150.150.150.150.150.150.150.15
Percentage of EquityMethodInvestmentOwnershipPercentage30.030.030.030.030.030.030.00.00.00.00.00.00.00.00.00.00.00.0

dpm:SandHillsPipeline


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value66.6766.6766.6766.670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.6667
Percentage of EquityMethodInvestmentOwnershipPercentage133.3133.3133.3133.3133.3133.3133.30.00.00.00.00.00.00.00.00.00.00.0

dpm:SouthernHillsPipeline


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value66.6766.6766.6766.670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.66670.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.33330.3333
Percentage of EquityMethodInvestmentOwnershipPercentage133.3133.3133.3133.3133.3133.3133.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dpm:TexasExpress


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value10.010.010.010.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of EquityMethodInvestmentOwnershipPercentage20.020.020.020.020.020.020.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationAssets

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationAssets


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-03-312010-12-31
Value743074887549754075267218706665696125584554925324516751305117512051005077511949884996501750305036500049304868483825472250174714522060943539351688721349686
Percentage of EquityMethodInvestmentSummarizedFinancialInformationAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value35534734636846335640932741155737933824424220720019616119317618218419920020721518522318217215212518790403411512911238153
Percentage of EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1771651471692312603664504244122562091961651471341661651611401701782041952002152583082761761201921851485844116886821121
Percentage of EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7510756476097598754673817282694163595937559654185319525352595256527252875298518352005247527752705157509650915033267823001760155621111043587390723712702360684
Percentage of EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities

us-gaap:EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value25825825925725225925924922123722722320020020220220220621123121623624223916416615011037464537514230293332302830
Percentage of EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestments

us-gaap:EquityMethodInvestments


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value360136403641366836963681372436113581346033403277316531053050300229942988147514741481148614931490148514811459143414261410627532384326558229147108208222218216
Percentage of EquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

dpm:CheyenneConnector


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value149151152153144100830.0
Percentage of EquityMethodInvestments4.14.14.24.23.92.72.20.0

dpm:Discovery


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value238243244248251256322327336339344350354355362376382381386389392397406408403413406395390388348283260229222159136108106106103104
Percentage of EquityMethodInvestments6.66.76.76.86.87.08.69.19.49.810.310.711.211.411.912.512.812.826.226.426.526.727.227.427.127.927.827.527.327.555.553.267.770.239.969.792.599.851.248.047.448.0

dpm:FrontRange


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value1951951982012042092061951851851751751631641651651661661651671691701701711701711691671641541341120.0
Percentage of EquityMethodInvestments5.45.45.45.55.55.75.55.45.25.35.25.35.25.35.45.55.55.611.211.311.411.411.411.511.411.511.611.611.510.921.421.10.0

dpm:GulfCoastExpress


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4274324364384414454494263862571468928220.0
Percentage of EquityMethodInvestments11.911.912.011.911.912.112.111.810.87.44.42.70.90.70.0

dpm:MontBelvieuEnterpriseFractionator


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value262726272727272727272427252423242322232222232523232423232522262221191816
Percentage of EquityMethodInvestments0.70.70.70.70.70.70.70.70.80.80.70.80.80.80.80.80.80.71.61.51.51.51.71.51.51.61.61.61.81.64.14.15.55.83.37.0

dpm:MontBelvieuOneFractionator


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value6.06.07.07.07.08.09.08.09.010.010.010.0121210.01310.010.010.010.010.0111111121314141414161616161414
Percentage of EquityMethodInvestments0.20.20.20.20.20.20.20.20.30.30.30.30.40.40.30.40.30.30.70.70.70.70.70.70.80.91.01.01.01.02.63.04.24.92.66.1

dpm:OtherUnconsolidatedAffiliates


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3.03.03.02.04.04.03.04.04.04.04.04.04.04.04.06.07.08.04.03.05.07.07.020158.07.07.06.07.01.01.01.01.00.10.20.20.20.20.20.20.2
Percentage of EquityMethodInvestments0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.30.30.20.30.50.51.31.00.50.50.50.40.50.20.20.30.30.00.10.10.20.10.10.10.1

dpm:PanolaPipelineCompanyLLC


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value20212121212222222122232323232424242425
Percentage of EquityMethodInvestments0.60.60.60.60.60.60.60.60.60.60.70.70.70.70.80.80.80.81.7

dpm:SandHillsPipeline


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1717173317231742175717681764177317811787179117741730167516331563154315314544494484424414424424274134023973980.0
Percentage of EquityMethodInvestments47.747.647.347.547.548.047.449.149.751.653.654.154.753.953.552.151.551.230.830.530.229.729.529.729.828.828.328.027.828.20.0

dpm:SouthernHillsPipeline


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value7257337347327417427387297317317287337357397397417477533153173183173183183233273293283313300.0
Percentage of EquityMethodInvestments20.120.120.220.020.020.219.820.220.421.121.822.423.223.824.224.724.925.221.421.521.521.321.321.321.822.122.522.923.223.40.0

dpm:TexasExpress


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value9596979799100101100101989592918790909293939394959697979898989997969280554033
Percentage of EquityMethodInvestments2.62.62.72.62.72.72.72.82.82.82.82.82.92.83.03.03.13.16.36.36.36.46.46.56.56.66.76.86.96.915.317.320.816.97.314.4

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue us-gaap:BalanceSheetLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

dpm:CurrentAssets


Fair
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.01.08.04.05.08.05.0144.01.02.03.02.07.08.00.00.00.00.022548311813877657065758761402144151.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:LongTermAssets


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.02.02.04.00.01.00.01.02.01.02.02.01.00.01.01.02.02.00.00.00.00.00.00.00.00.01827386075103138122652935281.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue100.00.00.00.00.012.50.020.025.020.014.350.0100.00.033.350.028.625.00.00.00.00.00.00.00.00.013.035.158.585.7115.4137.3158.6200.0162.5138.179.5186.7100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:BalanceSheetLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

dpm:CurrentLiabilities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-08-052013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312010-12-302009-12-31
Value9.04.03.0-1.03.03.01.01.01.01.00.01810.06.0138.02.08.05.00.00.00.00.00.00.00.00.00.00.01.00.01.00.00.00.0-0.2-0.2-0.4-3.0-0.7-0.7-1.2-0.1-0.1-1.6
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dpm:LongTermLiabilities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-08-052013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-06-302010-12-312010-12-302009-12-31
Value5.01.01.0-1.04.01.03.05.00.01.02.05.07.03.01.02.03.03.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.2-0.2-0.30.0-0.3-0.3-0.5-0.5-0.7
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue55.625.033.3100.0133.333.3300.0500.00.0100.00.027.870.050.07.725.0150.037.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.075.0-0.042.925.0500.0500.043.8

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value24252727242425
Percentage of FinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value4000000.04000000.05000000.04000000.03000000.03000000.03000000.01000000.00
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value202122232121225.00.0
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value30313333
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value9.09.010.011
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value2000000.02000000.02000000.06000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value6000000.06000000.06000000.05000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value3000000.04000000.05000000.01000000.0
Percentage of FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value25252525222125
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value3.03.03.03.03.03.03.04.0
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value678887-86.0-84.017016115361524435272523211514129.4
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-31
Value22
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2020-12-31
Value5000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value4000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value4000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value4000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value5000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312017-03-312016-12-312014-12-312013-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value111145145145145410410410410164164164164164164129129129128
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value7871857371678068817271687153716972571829193019<