DTE


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

Table of contents



us-gaap:CommonStockValue
dei:LegalEntity
us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostsAndExpenses
dei:LegalEntity
us-gaap:FairValueByAssetClass
us-gaap:GainLossOnInvestments

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
dei:LegalEntity

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:InterestExpense
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity

us-gaap:OperatingIncomeLoss
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RegulatedAndUnregulatedOperatingRevenue
dei:LegalEntity
dei:LegalEntity, us-gaap:ContractWithCustomerSalesChannel, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ContractWithCustomerSalesChannel, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:RegulatedOperatingRevenue
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:UnregulatedOperatingRevenue
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Assets
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:Liabilities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity

us-gaap:StockholdersEquity
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivablesByBillingStatusType
us-gaap:AccountsNotesLoansAndFinancingReceivablesByBillingStatusType
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:InventoryNet
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:InventoryRawMaterialsAndSupplies
dei:LegalEntity

us-gaap:OtherAssetsCurrent
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
dei:LegalEntity
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
dei:LegalEntity
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentNet
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:LongTermInvestments
dei:LegalEntity

us-gaap:Goodwill
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
dei:LegalEntity, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetExcludingGoodwill
dei:LegalEntity

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:ConsolidatedEntities
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:OtherAssets
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:AccountsPayableCurrent
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:DebtCurrent
us-gaap:LongtermDebtType

us-gaap:DividendsPayableCurrent

us-gaap:LiabilitiesCurrent
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:OperatingLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebt
dei:LegalEntity
us-gaap:LongtermDebtType
dei:LegalEntity
us-gaap:LongTermDebtNoncurrent
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType

us-gaap:LongTermDebtAndCapitalLeaseObligations
dei:LegalEntity

us-gaap:DeferredIncomeTaxLiabilitiesNet
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanType

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent
dei:LegalEntity

us-gaap:OperatingLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
dei:LegalEntity

us-gaap:OperatingLeaseLiability
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity

us-gaap:StockholdersEquity
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue
dei:LegalEntity

us-gaap:RetainedEarningsAccumulatedDeficit
dei:LegalEntity

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:DepreciationDepletionAndAmortization
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInInventories
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity
dei:LegalEntity
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:StatementScenario, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:StatementScenario, us-gaap:SubsequentEventType
us-gaap:SubsequentEventType

us-gaap:PaymentsOfDividendsCommonStock
dei:LegalEntity

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
dei:LegalEntity

us-gaap:DeferredTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsNet
dei:LegalEntity

us-gaap:UnrecognizedTaxBenefits
dei:LegalEntity

us-gaap:DeferredTaxAssetsValuationAllowance
dei:LegalEntity
dte:AdjustmentsToAdditionalPaidInCapitalContributionsFromParent
dei:LegalEntity, us-gaap:StatementEquityComponents

dte:ContractWithCustomerLiabilityIncreaseFromCashReceipts
us-gaap:UnusualOrInfrequentItem
dte:EffectiveIncomeTaxRateReconciliationCARESActAmount

dte:EffectiveIncomeTaxRateReconciliationCARESActPercent

dte:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackCARESActPercent

dte:EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017AmortizationOfRegulatoryLiabilityPercent
dei:LegalEntity

dte:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017AmortizationofRegulatoryLiabilityPercent
dei:LegalEntity
dei:LegalEntity, us-gaap:UnusualOrInfrequentItem
dte:EmployerPayrollTaxesDeferralCARESAct
us-gaap:UnusualOrInfrequentItem
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
dte:FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
dte:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

dte:FinancingReceivableCreditLossExpenseReversalAdjustedForRegulatoryDeferrals
dei:LegalEntity
dei:LegalEntity, us-gaap:UnusualOrInfrequentItem
dte:FinancingReceivableCreditLossExpenseReversalReclassificationToFromRegulatoryAssets

dte:GainLossonSaleofAssetsandAssetImpairmentChargesnet

dte:GainOnInvestments
dei:LegalEntity
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:GuaranteeObligationsByNature
dte:GuarantorObligationsMaximumPercentageExposure
us-gaap:CounterpartyName, us-gaap:GuaranteeObligationsByNature

dte:IncomefromREFinvestees

dte:IncomeonContractServices
dei:LegalEntity

dte:IncreaseDecreaseInEffectiveTaxRateFromPriorYearTaxCreditAnnualProductionPercent
dei:LegalEntity
dte:IncreaseDecreaseInPrepaidPostretirementCostsAffiliates

dte:IncreaseDecreaseinEffectiveTaxRatefromPriorYearPercent
dei:LegalEntity

dte:IncreaseDecreaseinGasInventoryEqualization
dei:LegalEntity
dte:IncreaseDecreaseinPensionPlanObligationsAffiliates
dei:LegalEntity
dte:IncreaseDecreaseinPostretirementObligationsAffiliates

dte:IncreaseDecreaseinPrepaidPostretirementCosts

dte:NonoperatingIncomePostAcquisitionSettlement

dte:Nuclearfuelamortization
dei:LegalEntity

dte:OtherMiscellaneousNonoperatingIncome
dei:LegalEntity
dei:LegalEntity
dte:PaymentOfDividendsToAffiliates
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
dte:PaymentsToSettleAccountsPayableAndAccountsReceivableAffiliatesNet

dte:PlantAndEquipmentExpendituresNonUtility

dte:PlantAndEquipmentExpendituresUtility
us-gaap:UnusualOrInfrequentItem
dte:ProceedsFromIncomeTaxRefundsCARESAct
dei:LegalEntity
dte:ProceedsfromRepaymentsofShorttermDebtAffiliate
dei:LegalEntity
dte:ProceedsfromRepaymentsofShorttermDebtOther
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
dte:PublicUtilitiesApprovedRateIncreaseDecreaseNetIncreaseDecreaseToCustomers

dte:RegulatedandUnregulatedOperatingExpenseDepreciationandAmortization

dte:RegulatedandUnregulatedOperatingExpenseMaintenanceandOperations
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
dte:RepaymentsOfNotesPayableRelatedPartiesCurrent

dte:SalesTypeLeaseNetInvestmentInLeaseAdditions

dte:UnregulatedOperatingExpenseProductsandServices
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:AccretionExpense
dei:LegalEntity, us-gaap:CounterpartyName
us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:StatementBusinessSegments
us-gaap:AssetImpairmentCharges

us-gaap:CapitalExpendituresIncurredButNotYetPaid
dei:LegalEntity
dei:LegalEntity, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:DebtSecuritiesAvailableForSaleRealizedGain
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DeferredIncomeTaxesAndTaxCredits
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligationPaymentForSettlement
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanSettlementsPlanAssets
us-gaap:StatementBusinessSegments
us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNonmonetaryNotionalAmountEnergyMeasure
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNonmonetaryNotionalAmountMass

us-gaap:DirectFinancingLeaseInterestIncome

us-gaap:DividendsCommonStockCash
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsOther
dei:LegalEntity

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquitySecuritiesFvNiGainLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:ExtinguishmentOfDebtAmount
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3
us-gaap:FairValueByMeasurementFrequency

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery
dei:LegalEntity
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
dei:LegalEntity
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges
dei:LegalEntity
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:GoodwillPurchaseAccountingAdjustments
us-gaap:BalanceSheetLocation, us-gaap:StatementBusinessSegments
us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables
dei:LegalEntity

us-gaap:IncreaseDecreaseInDerivativeAssetsAndLiabilities

us-gaap:IncreaseDecreaseInPensionPlanObligations

us-gaap:IncreaseDecreaseInPostretirementObligations

us-gaap:IncreaseDecreaseInRegulatoryAssetsAndLiabilities
dei:LegalEntity

us-gaap:InvestmentIncomeInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:CounterpartyName
us-gaap:LossContingencyAccrualPayments

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
dei:LegalEntity

us-gaap:OperatingLeaseLeaseIncome
us-gaap:IncomeStatementLocation
us-gaap:StatementBusinessSegments

us-gaap:OperatingLeaseLeaseIncomeLeasePayments

us-gaap:OperatingLeaseVariableLeaseIncome

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherNonoperatingExpense
dei:LegalEntity

us-gaap:OtherNonoperatingIncome
dei:LegalEntity

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:PaymentForContingentConsiderationLiabilityInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
dei:LegalEntity
us-gaap:SubsequentEventType
us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireNotesReceivable

us-gaap:PaymentsToAcquireOtherInvestments
dei:LegalEntity

us-gaap:PaymentsToMinorityShareholders
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus
us-gaap:PensionContributions
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:PensionExpense
dei:LegalEntity
us-gaap:ProceedsFromContributionsFromParent

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromSaleAndMaturityOfOtherInvestments
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfOtherProductiveAssets

us-gaap:ProceedsFromShortTermDebt

us-gaap:ProfessionalFees

us-gaap:ProvisionForLoanLossesExpensed
dei:LegalEntity
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesApprovedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesApprovedReturnOnEquityPercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesRequestedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesRequestedReturnOnEquityPercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
us-gaap:StatementBusinessSegments
us-gaap:RevenueNotFromContractWithCustomer
us-gaap:StatementBusinessSegments
us-gaap:RevenueNotFromContractWithCustomerOther
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesEmployeeBenefitPlan
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:StockIssuedDuringPeriodValueEmployeeBenefitPlan
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOtherShares
us-gaap:StatementBusinessSegments
us-gaap:TangibleAssetImpairmentCharges

us-gaap:TaxesExcludingIncomeAndExciseTaxes
dei:LegalEntity
dei:LegalEntity
us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization
dei:LegalEntity
us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations

us-gaap:UtilitiesOperatingExpenseProductsAndServices
dei:LegalEntity
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:ConsolidatedEntities
us-gaap:VariableInterestEntityOwnershipPercentage

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
dei:LegalEntity, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
dei:EntityNumberOfEmployees
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
dei:LegalEntity, us-gaap:CounterpartyName
dte:AccountsReceivableUnrecordedAmountCollectabilityNotProbable

dte:CashCollateralPostedReceivedNet
dei:LegalEntity
dte:DecommissioningFundInvestmentsAccumulatedGrossUnrealizedGainBeforeTax
dei:LegalEntity, us-gaap:FairValueByAssetClass
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:InvestmentType
dei:LegalEntity
dte:DecommissioningFundInvestmentsAccumulatedGrossUnrealizedLossBeforeTax
dei:LegalEntity, us-gaap:FairValueByAssetClass
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FinancialInstrument

dte:DeferredTaxLiabilityNetofValuationAllowance
dei:LegalEntity
dei:LegalEntity
dte:DefinedBenefitPensionPlanLiabilitiesNoncurrentAffiliates
dei:LegalEntity, us-gaap:RetirementPlanType
dte:DefinedBenefitPlanPlanWithAccumulatedBenefitObligationInExcessOfPlanAssetsPlanAssetsAccumulatedBenefitObligationNet
us-gaap:RetirementPlanType
us-gaap:FairValueByMeasurementFrequency
dte:DerivativeAssetLiabilityFairValueGrossLiabilityAssetAndObligationToReturnCashAndRightToReclaimCashOffset
us-gaap:FairValueByMeasurementFrequency
dte:DerivativeAssetLiabilityFairValueGrossLiabilityAssetandObligationtoReturnCashandRighttoReclaimCashOffset

dte:DerivativeNetAssetPositionAggregateFairValue

dte:EstimatedCapitalExpendituresAndContributionsToEquityMethodInvesteesForCurrentFiscalYear

dte:EstimatedCapitalExpendituresandContributionsToEquityMethodInvestees
dei:LegalEntity

dte:EstimatedFutureCapitalExpendituresForNextYear
dei:LegalEntity

dte:ExpectedContributionForCommunityBasedEnvironmentalProjectsMinimum
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility
dte:FinancingAgreementAmountOutstanding
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
dte:FinancingReceivableExcludingAccruedInterestOriginatedTwoOrMoreYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CounterpartyName, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
dte:FinancingReceivableMaximumPotentialLiability
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
dte:FinancingReceivableOriginatedTwoorMoreYearsbeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

dte:GasInventoryEqualizationCurrent
us-gaap:JointlyOwnedUtilityPlant
dte:JointOwnersPercentageOfTotalCapacityEnergyAndRelatedResponsibilities
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
dte:JointlyOwnedUtilityPlantCapacity

dte:LettersofCreditIssuedthatcouldbeusedtooffsetnetderivativeliabilities

dte:LettersofCreditReceivedUsedtoOffsetNetDerivativeAssets

dte:Lettersofcreditthatcouldbeusedtooffsetnetderivativeliabilities

dte:LineofCreditFacilityDividendRestrictionsAmount
dei:LegalEntity, us-gaap:EnvironmentalRemediationContingency
dte:LossContingencyEstimateOfPossibleLossThrough2025
dei:LegalEntity, us-gaap:EnvironmentalRemediationContingency
dte:LossContingencyEstimateOfPossibleLossThroughYearFive
dei:LegalEntity, us-gaap:RetirementPlanType
dte:NetActuarialLossRecognizedInRegulatoryAssets
us-gaap:RetirementPlanType
us-gaap:ConsolidatedEntities
dte:NotesReceivableAndOtherAssets
us-gaap:PublicUtility
dte:NuclearDecommissioningLiabilitiesFundedThroughSurchargeAndIncludedInAroBalance
dei:LegalEntity
dte:OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrentAffiliates

dte:PercentOwnershipinPipeline

dte:PrepaidPostretirementCosts
dei:LegalEntity
dte:PrepaidPostretirementCostsAffiliates
dei:LegalEntity, us-gaap:RetirementPlanType
dte:PriorServiceCostCreditRecognizedinRegulatoryAssets
us-gaap:RetirementPlanType

dte:ProfessionalFeesCumulativeAmount
dei:LegalEntity, us-gaap:UnusualOrInfrequentItem
dte:ProposedRegulatoryLiabilities
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
dte:PublicUtilitiesApprovedAccelerationOfAmortizationRegulatoryLiabilityTaxCutsAndJobsAct
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:RegulatoryAgency
dte:PublicUtilitiesAuthorizedIssuanceOfSecuritizationBondsOfQualifiedCostsAmountMaximum
dei:LegalEntity, us-gaap:RegulatoryAgency
dte:PublicUtilitiesRequestedSecuritizationOfQualifiedCostsAmount

dte:Remainingamountofoffsetstoderivativenetliabilitypositionsforhardandsofttriggerprovisions

dte:SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour
dei:LegalEntity, us-gaap:RetirementPlanType
dte:TotalExpectedFutureBenefitPayments
us-gaap:RetirementPlanType
dei:LegalEntity
dte:TotalLimitForPropertyDamageForNonNuclearEvents
us-gaap:ConsolidatedEntities
dte:VariableInterestEntityFutureFundingCommitments
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity
us-gaap:AccountsPayableOtherCurrent
dei:LegalEntity
us-gaap:AccountsPayableRelatedPartiesCurrent
dei:LegalEntity, us-gaap:CounterpartyName
us-gaap:AccountsReceivableGrossCurrent
dei:LegalEntity
us-gaap:AccountsReceivableRelatedPartiesCurrent
dei:LegalEntity
us-gaap:AccrualForEnvironmentalLossContingenciesGross

us-gaap:AccruedEnvironmentalLossContingenciesNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:AccruedIncomeTaxes

us-gaap:AccumulatedDeferredInvestmentTaxCredit
dei:LegalEntity

us-gaap:AdditionalCollateralAggregateFairValue

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesType
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:AlternativeInvestment

us-gaap:AssetRetirementObligation
dei:LegalEntity

us-gaap:AssetRetirementObligationsNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
dei:LegalEntity, us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtSecurities
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
us-gaap:StatementGeographical, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization
dei:LegalEntity

us-gaap:CapitalizedComputerSoftwareGross
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure
dei:LegalEntity, us-gaap:FairValueByAssetClass
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:ContractWithCustomerLiability
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount
dei:LegalEntity, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity
us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtWeightedAverageInterestRate
us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:SubsequentEventType
us-gaap:DebtorInPossessionFinancingAmountArranged

us-gaap:DecommissioningFundInvestments
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByAssetClass
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:PublicUtility
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:DecommissioningLiabilityNoncurrent
dei:LegalEntity
us-gaap:DecommissioningTrustAssetsAmount
dei:LegalEntity, us-gaap:FairValueByAssetClass
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
dei:LegalEntity, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:InvestmentType
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsNet
us-gaap:LongtermDebtType

us-gaap:DeferredIncomeTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
dei:LegalEntity

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:Range, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:Range, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1

us-gaap:DerivativeAssetCollateralObligationToReturnCashOffset
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation
us-gaap:DerivativeAssetFairValueGrossLiability

us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:DerivativeAssetLiabilityNetMeasurementInput

us-gaap:DerivativeAssets
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssetsCurrent
us-gaap:BalanceSheetLocation

us-gaap:DerivativeAssetsNoncurrent
us-gaap:BalanceSheetLocation

us-gaap:DerivativeCollateralObligationToReturnCash

us-gaap:DerivativeCollateralRightToReclaimCash

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:DerivativeLiabilities
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilitiesCurrent
us-gaap:BalanceSheetLocation

us-gaap:DerivativeLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation

us-gaap:DerivativeLiabilityCollateralRightToReclaimCashOffset
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation
us-gaap:DerivativeLiabilityFairValueGrossAsset

us-gaap:DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeNetLiabilityPositionAggregateFairValue
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount

us-gaap:DirectFinancingLeaseDeferredSellingProfit

us-gaap:DirectFinancingLeaseUnguaranteedResidualAsset

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType

us-gaap:EnergyRelatedInventory
dei:LegalEntity

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments

us-gaap:EquityMethodInvestments
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:PublicUtilitiesInventory
us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue
us-gaap:InvestmentType
us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueNetAssetLiability
us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:FinanceLeaseLiability
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity

us-gaap:FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
dei:LegalEntity
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableAllowanceForCreditLosses
dei:LegalEntity
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossNoncurrent
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
dei:LegalEntity, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
dei:LegalEntity, us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsCurrentCarryingValue
us-gaap:GuaranteeObligationsByNature
us-gaap:CounterpartyName, us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:GuaranteeObligationsByNature
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:IncomeTaxReceivable

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:InterestPayableCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentsFairValueDisclosure
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantNetOwnershipAmount
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantProportionateOwnershipShare

us-gaap:JuniorSubordinatedLongTermNotes
us-gaap:PublicUtilitiesInventory
us-gaap:LIFOInventoryAmount

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears

us-gaap:LineOfCredit
dei:LegalEntity
dei:LegalEntity, us-gaap:CreditFacility
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
dei:LegalEntity
dei:LegalEntity, us-gaap:EnvironmentalRemediationContingency
us-gaap:LossContingencyEstimateOfPossibleLoss

us-gaap:NetInvestmentInLease
us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:NetInvestmentInLeaseCurrent

us-gaap:NetInvestmentInLeaseNoncurrent

us-gaap:NotesAndLoansReceivableNetNoncurrent
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:NotesPayableFairValueDisclosure
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity
us-gaap:NotesPayableRelatedPartiesClassifiedCurrent
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:NotesReceivableFairValueDisclosure
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:NotesReceivableGross
dei:LegalEntity, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherAssetsMiscellaneousNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:OtherLiabilities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:OtherLongTermDebtNoncurrent

us-gaap:OtherLongTermInvestments
dei:LegalEntity

us-gaap:OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent

us-gaap:OtherReceivablesNetCurrent
dei:LegalEntity
dei:LegalEntity
us-gaap:OtherShortTermBorrowings

us-gaap:OtherSundryLiabilitiesNoncurrent
dei:LegalEntity
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
dei:LegalEntity
us-gaap:PrepaidTaxes

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
dei:LegalEntity
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet
dei:LegalEntity

us-gaap:PurchaseObligation
dei:LegalEntity

us-gaap:PurchaseObligationDueAfterFifthYear
dei:LegalEntity

us-gaap:PurchaseObligationDueInFifthYear
dei:LegalEntity

us-gaap:PurchaseObligationDueInFourthYear
dei:LegalEntity

us-gaap:PurchaseObligationDueInNextTwelveMonths
dei:LegalEntity

us-gaap:PurchaseObligationDueInSecondYear
dei:LegalEntity

us-gaap:PurchaseObligationDueInThirdYear
dei:LegalEntity
dei:LegalEntity
us-gaap:RatioOfIndebtednessToNetCapital1
us-gaap:ConsolidatedEntities

us-gaap:RegulatoryAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryAsset
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RegulatoryAsset
us-gaap:RetirementPlanType

us-gaap:RegulatoryAssetsCurrent
dei:LegalEntity

us-gaap:RegulatoryAssetsNoncurrent
dei:LegalEntity

us-gaap:RegulatoryLiabilities
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryLiability
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:UnusualOrInfrequentItem
dei:LegalEntity, us-gaap:UnusualOrInfrequentItem
us-gaap:RegulatoryLiability

us-gaap:RegulatoryLiabilityCurrent
dei:LegalEntity

us-gaap:RegulatoryLiabilityNoncurrent
dei:LegalEntity

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RetainedEarningsUndistributedEarningsFromEquityMethodInvestees

us-gaap:RevenueRemainingPerformanceObligation
dei:LegalEntity, us-gaap:ContractWithCustomerBasisOfPricing
us-gaap:ContractWithCustomerBasisOfPricing

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:RetirementPlanType
us-gaap:SharesIssuedPricePerShare
us-gaap:ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTerms
us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsExcessOfLiabilitiesOverAssets
us-gaap:ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTerms
us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsMaximumNumberOfShares
us-gaap:Range, us-gaap:StatementScenario, us-gaap:ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTerms
us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsNumberOfShares

us-gaap:ShortTermBorrowings
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:ShortTermDebtWeightedAverageInterestRate
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:ShorttermDebtFairValue
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:RelatedPartyTransactionsByRelatedParty
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity, us-gaap:TaxCreditCarryforward
us-gaap:TaxCreditCarryforwardAmount

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
dei:LegalEntity

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
dei:LegalEntity

Plots across concepts


Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Payments For Other Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:CommonStockValue ████▇▇▇▄▄▄▄▄▄▄▃▃▃▃▃▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁5361.05344.05406.05369.05247.05235.05233.04370.04344.04324.04245.04232.04205.04163.03989.03978.03968.03958.04030.04137.04129.04118.04123.04117.04110.04093.03904.03900.03896.03894.03907.03885.03762.03683.03587.03567.03549.03453.03417.03418.03415.03428.0
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock███████▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁193.752193.727193.771193.56192.651192.612192.209183.397183.302183.212181.925181.925181.773181.483179.387179.39179.394179.387179.433179.435179.435179.435179.47179.476179.476179.33176.991176.991176.993177.017177.087176.797174.96173.951172.352172.073171.755170.112169.247169.251169.329169.346
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▄▄194.0194.0NA193.0193.0192.0NA184.0184.0183.0NA182.0181.0180.0NA179.0179.0179.0NA180.0180.0180.0NA180.0179.0178.0NA177.0177.0177.0NA176.0175.0173.0NA172.0171.0170.0NA170.0170.0170.0
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█193.0194.0NA193.0192.0192.0NA183.0183.0182.0NA182.0181.0180.0NA179.0179.0179.0NA179.0179.0179.0NA179.0179.0178.0NA177.0177.0177.0NA175.0174.0173.0NA172.0170.0170.0NA169.0169.0169.0
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█9.510.3NA10.310.310.3NANANANANA6.26.66.6NA6.26.36.8NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▃▇▄█▄▆▄▅▃▇▃▆▄▆▅▅▃▇▂▆▂▄▁▅▂▅▅▂▂▆▂▃▂▄▁▄▂▃▂▃▄▃0.922.051.422.471.441.771.41.740.992.21.051.841.292.011.61.510.992.230.731.880.841.380.451.470.611.531.680.880.71.840.71.130.61.350.471.320.860.910.881.081.191.04
us-gaap:EarningsPerShareDiluted ▄▇▅█▅▆▅▆▄▇▄▆▅▇▆▅▄▇▃▆▃▅▂▅▃▅▆▄▃▆▃▄▃▅▁▅▃▄▄▄▄▄0.922.051.422.461.441.761.41.730.992.191.051.841.292.01.61.510.992.230.731.880.841.370.451.470.611.531.680.880.71.840.71.130.61.340.01.310.860.910.881.071.191.04
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
 Cost Ratio dei:LegalEntity dte:DTEElectricNANA1295.01690.01309.01212.01280.01519.01190.01235.01296.01521.01276.01205.01275.01434.01218.01175.01249.01608.01215.01153.01165.01385.01147.01203.01234.01357.01281.01410.0NANANANANANANANANANANANA
 EBT Margin dei:LegalEntity dte:DTEElectricNANA1295.01690.01309.01212.01280.01519.01190.01235.01296.01521.01276.01205.01275.01434.01218.01175.01249.01608.01215.01153.01165.01385.01147.01203.01234.01357.01281.0NANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity dte:DTEElectricNANA1295.01690.01309.01212.01280.01519.01190.01235.01296.01521.01276.01205.01275.01434.01218.01175.01249.01608.01215.01153.01165.01385.01147.01203.01234.01357.01281.01410.0NANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
 TTM Greenblatt ROC _ _▄▇▆█▄▇▅▆▃▇▄▅▄▆▄▅▃▇▃▇▃▅▁▆▂▆▇▃▃▇▃▄▂▅▃▅▃▄▄▅▃▅322.0537.0465.0608.0367.0546.0415.0450.0300.0542.0332.0429.0329.0504.0356.0418.0303.0569.0301.0507.0256.0381.0134.0440.0204.0461.0542.0239.0249.0560.0241.0329.0223.0410.0267.0410.0294.0312.0346.0399.0288.0390.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
 us-gaap:AllocatedShareBasedCompensationExpense dei:LegalEntity,us-gaap:RelatedPartyTransactionsByRelatedParty dte:DTEElectric,srt:ParentCompany▅█▄▆▂▄▄▄▅▇▅▅▃▄▁▄▄11.014.09.012.07.09.010.09.011.013.011.011.08.09.06.010.010.0NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▃▇▅█▅▆▄▅▃▇▃▆▄▆▅▅▃▇▂▆▂▄▁▄▂▄▅▂▂▅▂▃▂▄▁▄▂▃▂▃▃▃181.0400.0276.0479.0281.0343.0265.0319.0179.0403.0189.0337.0236.0358.0287.0275.0181.0404.0136.0342.0150.0252.085.0266.0113.0273.0277.0157.0127.0325.0139.0202.0106.0236.070.0231.0148.0161.0138.0183.0204.0177.0
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest NANA0.01.00.02.01.0-2.0-3.07.05.01.02.0-10.0-7.0-7.0-2.0-6.0-7.0-13.0-7.0-7.0-3.0-1.0-4.01.02.01.02.01.02.02.02.01.02.03.01.02.07.02.0-2.0-2.0
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▇▇█▇▇▇▇▆█▆▇▆▇▇▇▆▇▆▇▆▆▅▇▅▇▇▆▆▇▆▆▅▅▁▆▆▅▆▆▆▆181.0400.0276.0480.0281.0345.0266.0317.0176.0410.0194.0338.0238.0348.0280.0268.0179.0398.0129.0329.0143.0245.082.0265.0109.0274.0279.0158.0129.0326.0141.0204.01.02.0-546.0234.0149.05.0145.0185.0202.0179.0
us-gaap:CostsAndExpenses ▆▇▆▅▃▄▅▅▅▆█▇▆▇▆▆▄▅▄▄▂▃▄▃▂▄▄▄▄█▃▂▂▃▂▁▁▂▁▂▁▂2907.03241.02823.02676.02216.02476.02733.02669.02588.02972.03418.03121.02830.03249.02915.02827.02552.02667.02573.02421.02006.02185.02353.02158.02064.02523.02536.02356.02449.03370.02292.02058.02002.02106.02048.01796.01731.01937.01827.01866.01740.02041.0
 us-gaap:GainLossOnInvestments us-gaap:FairValueByAssetClass us-gaap:AssetHeldInTrust▅▅▆▅█▁▆▅▆▇2.02.04.02.022.0-31.010.03.07.017.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainLossOnInvestments us-gaap:FairValueByAssetClass us-gaap:EquitySecurities▅▅▆▅█▁▇▅▆▇2.02.03.02.016.0-23.09.01.04.013.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainLossOnInvestments us-gaap:FairValueByAssetClass us-gaap:FixedIncomeSecuritiesNANA1.00.06.0-8.01.02.03.04.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GainsLossesOnExtinguishmentOfDebt 8.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▃▆▅█▄▆▄▅▃▇▃▆▄▆▃▅▄▇▂▆▃▅▁▅▂▆▆▃▃▇▂▄▂▅▃▅201.0425.0324.0540.0283.0391.0298.0364.0200.0462.0173.0369.0255.0419.0214.0337.0232.0504.0152.0435.0195.0323.057.0366.0131.0396.0436.0178.0176.0485.0155.0276.0151.0340.0174.0337.0NANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▄▄▅▅▃▅▄▅▄▅▂▄▄▅▁▅▅▆▄▆▅▆▂▆▄▇▇▄▅█▄▅▄▆▄▆▅▅▆▆▂▆22.028.049.063.06.049.030.047.021.054.0-23.034.019.068.0-66.074.057.0110.028.0110.050.083.0-20.0102.026.0122.0135.021.050.0158.029.076.044.0105.035.0108.070.073.087.0101.0-24.0103.0
us-gaap:InterestExpense █▇█▇▇▇▇▆▅▅▄▄▃▃▃▄▃▃▃▂▂▂▁▂▂▁▁▁▁▁▁▁▂▁▁▂▁▂▂▂▂▃190.0181.0188.0178.0179.0175.0173.0162.0154.0152.0147.0142.0135.0135.0132.0146.0133.0125.0131.0114.0114.0113.0109.0116.0115.0110.0106.0107.0106.0110.0109.0106.0112.0109.0106.0112.0109.0113.0124.0120.0124.0126.0
us-gaap:NetIncomeLoss ▃▇▄█▄▆▄▅▃▇▃▅▄▆▅▄▃▇▂▆▂▄▁▄▂▄▅▂▂▅▂▃▁▄▁▄▂▂▂▃▃▃179.0397.0275.0476.0277.0340.0267.0319.0182.0401.0191.0334.0234.0361.0287.0270.0177.0400.0131.0338.0152.0247.080.0265.0109.0273.0299.0156.0124.0326.0124.0198.0105.0234.081.0227.0146.0156.0150.0183.0202.0176.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest NANA0.01.00.02.01.0-2.0-3.07.05.01.02.0-10.0-7.0-7.0-2.0-6.0-7.0-13.0-7.0-7.0-3.0-1.0-4.01.02.01.02.01.02.02.02.01.02.03.01.02.07.02.0-2.02.0
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▂▆▄█▄▅▄▅▂▆▂▅▃▆▄▄▂▆▁▅▁▃178.0397.0275.0475.0277.0339.0267.0318.0182.0400.0191.0333.0234.0360.0287.0269.0177.0399.0130.0338.0152.0247.0NANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▂▆▄█▄▅▄▅▂▆▂▅▃▆▄▄▂▆▁▅▁▃178.0397.0275.0475.0277.0339.0267.0318.0182.0400.0191.0333.0234.0360.0287.0269.0177.0399.0130.0338.0152.0247.0NANANANANANANANANANANANANANANANANANANANA
us-gaap:NonoperatingIncomeExpense ▄▄▂▇▆▁▄▆▅▆▁█▇▆▂▆▇▇▂▇▇█▆▇▇▇▄▇▇▇▆█▇▇▆▇▆▆▅▄▄▄-121.0-112.0-141.0-68.0-84.0-155.0-117.0-86.0-100.0-80.0-159.0-60.0-74.0-85.0-142.0-81.0-71.0-65.0-149.0-72.0-61.0-58.0-77.0-74.0-73.0-65.0-106.0-61.0-73.0-75.0-86.0-53.0-72.0-70.0-89.0-72.0-77.0-81.0-102.0-113.0-112.0-109.0
 us-gaap:NonoperatingIncomeExpense dei:LegalEntity dte:DTEElectric▅▅▃▄▇▁▅▅▆█▃▇▆▆▆▇▇▇▆▇▇██▆▆▇█▆█▇-75.0-71.0-92.0-83.0-55.0-107.0-70.0-74.0-65.0-50.0-91.0-58.0-62.0-66.0-65.0-58.0-60.0-54.0-67.0-60.0-54.0-48.0-52.0-67.0-62.0-57.0-52.0-61.0-52.0-57.0NANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▄▇▆█▄▇▅▆▃▇▄▅▄▆▄▅▃▇▃▇▃▅▁▆▂▆▇▃▃▇▃▄▂▅▃▅▃▄▄▅▃▅322.0537.0465.0608.0367.0546.0415.0450.0300.0542.0332.0429.0329.0504.0356.0418.0303.0569.0301.0507.0256.0381.0134.0440.0204.0461.0542.0239.0249.0560.0241.0329.0223.0410.0267.0410.0294.0312.0346.0399.0288.0390.0
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax ██▆████▃▁▄1.01.0-1.01.01.01.01.0-4.0-6.0-3.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▆▅▆▆▆▅▅▅▆▅▆▆▅▅▆▆▆▆▆▅▆▆▅▆▅▁▅▆▅█▆▅▆▃▆2.03.01.03.04.03.0-2.00.0-3.02.0-2.03.02.0-3.00.05.04.04.05.04.0-2.05.05.01.04.00.0-22.01.03.0-1.015.04.01.02.0-11.04.0NANANANANANA
us-gaap:ProfitLoss ▃▇▄█▄▆▄▅▃▇▃▆▄▆▅▄▃▇▂▅▂▄▁▄▁▄▅▂▂▅▂▃▂▄▁▄▂▂▂▃▃▃179.0397.0275.0477.0277.0342.0268.0317.0179.0408.0196.0335.0236.0351.0280.0263.0175.0394.0124.0325.0145.0240.077.0264.0105.0274.0301.0157.0126.0327.0126.0200.0107.0235.083.0230.0147.0158.0157.0185.0200.0178.0
us-gaap:RegulatedAndUnregulatedOperatingRevenue ▅▇▆▆▃▅▅▅▄▆▇▇▅▇▆▅▄▅▄▄▂▃▃▃▂▅▅▃▄█▃▂▂▃▂▂▁▂▂▂▁▂3229.03778.03288.03284.02583.03022.03148.03119.02888.03514.03750.03550.03159.03753.03271.03245.02855.03236.02874.02928.02262.02566.02487.02598.02268.02984.03078.02595.02698.03930.02533.02387.02225.02516.02349.02190.02013.02239.02163.02254.02018.02423.0
us-gaap:RegulatedOperatingRevenue ▄█▅▇▃▅▅▅▂▇▆▅▃▅▅▄▂▅▄▆▂▅▃▃▁▇1655.01953.01726.01844.01542.01733.01701.01656.01417.01864.01747.01669.01514.01740.01720.01573.01423.01718.01650.01748.01435.01664.01512.01528.01357.01841.0NANANANANANANANANANANANANANANANA
us-gaap:UnregulatedOperatingRevenue ▅▇▅▅▂▄▅▅▅▆█▇▆█▅▆▅▅▃▃▁▁▂▂▁▃1574.01825.01562.01440.01041.01289.01447.01463.01471.01650.02003.01881.01645.02013.01551.01672.01432.01518.01224.01180.0827.0902.0975.01070.0911.01143.0NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:Assets █▇▇▇▆▆▆▅▄▄▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▂▁▁▁▁▁▁▁49636.046699.045496.044439.043739.043232.041882.038345.036851.036434.036288.035292.034330.033841.033767.033071.032582.032149.032041.029462.028769.028564.028737.028654.028350.028068.027974.026376.026189.026161.025935.026231.025944.025949.026339.025909.026075.025846.026009.024780.024579.024489.0
 us-gaap:Liabilities us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted█▄▁93.075.064.0NANANA20.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestricted█▄▁101.082.071.0NANANA29.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted█▁▁8.07.07.0NANANA9.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryOtherRestrictedNANANA44.034.0NA20.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestrictedNANANA50.041.0NA29.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiarySGGRestrictedNANANA6.07.0NA9.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▇▆▆▆▅▄▄▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▂▁▁▁▁▁▁▁49636.046699.045496.044439.043739.043232.041882.038345.036851.036434.036288.035292.034330.033841.033767.033071.032582.032149.032041.029462.028769.028564.028737.028654.028350.028068.027974.026376.026189.026161.025935.026231.025944.025949.026339.025909.026075.025846.026009.024780.024579.024489.0
us-gaap:StockholdersEquity ████▇▇▇▆▅▆▅▅▅▅▄▄▄▄▄▄▃▄▃▃▃▃▃▃▂▃▂▂▂▂▂▂▁▁▁▁▁▁12378.012552.012425.012323.011724.011822.011672.010740.010396.010545.010237.010207.09844.09888.09512.09373.09088.09194.09011.09130.08778.08887.08772.08812.08539.08665.08327.08169.08008.08117.07921.07876.07552.07596.07373.07389.07142.07104.07009.06970.06785.06793.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:AssetsCurrent █▅▃▄▃▃▂▂▂▂▃▂▂▂▂▂▂▂▂▂▁▁▂▂▂▂▂▂▂▂▂▁▁▂▂▂▂▂▃▂▂▂6402.04376.03498.03821.03497.03526.03086.02985.02726.02840.03260.03103.02895.02957.03081.02815.02631.02567.02762.02595.02258.02362.02575.02700.02691.02788.03087.02755.02721.02973.02806.02549.02496.02769.02915.02730.03050.02951.03196.02911.02771.02800.0
us-gaap:CashAndCashEquivalentsAtCarryingValue █▄▂▃▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁3448.01568.0514.0945.0579.0552.093.076.062.056.071.084.063.0164.066.063.062.082.092.066.032.035.037.067.0230.099.048.060.075.098.052.071.046.0218.065.059.0185.057.068.046.061.0197.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▄▂▃▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁3450.01570.0516.0962.0621.0676.093.076.062.061.076.0104.086.0186.089.086.084.0102.0113.0NANANA60.0NANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▅▅▆▄▃▄▆▄▄▇█▇▇▇▇▃▄▄▅▂▁▁▂▂▂▅▅▂▄█▅▂▃▄▃▁▂▂▃▁▂▄1550.01553.01665.01419.01375.01482.01642.01453.01436.01683.01789.01690.01690.01709.01758.01395.01451.01408.01522.01250.01180.01185.01276.01242.01251.01534.01504.01257.01400.01811.01542.01239.01314.01460.01336.01164.01239.01262.01317.01206.01297.01401.0
 us-gaap:InventoryNet us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted▁▂█46.052.0107.0NANANA74.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:InventoryNet us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestricted▁▂█46.052.0107.0NANANA74.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:InventoryNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryOtherRestrictedNANANA102.098.0NA74.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:InventoryNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestrictedNANANA102.098.0NA74.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InventoryRawMaterialsAndSupplies ██▅▆▇▆▅▅▇▆▆▅▄▄▅▄▅▄▄▃▃▃▃▃▃▂▂▂▂▁▁▁469.0460.0381.0403.0436.0413.0386.0393.0431.0409.0405.0377.0362.0360.0380.0363.0390.0354.0356.0326.0332.0309.0323.0307.0308.0300.0292.0282.0277.0272.0265.0258.0NANA234.0NANANANANANANA
us-gaap:OtherAssetsCurrent ▃▆▄▆▃▆▄▂▃▅▄▆▂▄▄▆▃▄▃▁▂▅▄█▅▇▇▇▃▃▄▅▁▂▃▅▂▃▃▅▄▅181.0267.0229.0295.0181.0268.0209.0136.0178.0231.0221.0272.0162.0221.0199.0270.0168.0222.0195.0127.0161.0234.0203.0346.0244.0312.0313.0305.0166.0178.0209.0248.0115.0158.0194.0244.0162.0187.0196.0249.0223.0233.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
 us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesNANA5235.0NANANA5260.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ██▇▇▇▇▆▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁39486.038430.037997.037256.036684.036146.035072.033473.032834.032214.031810.032600.032122.031656.031424.030924.030599.030287.030029.028748.028371.028273.028121.028014.027579.027124.026538.026169.025836.025384.025123.024795.024356.023936.023631.023442.023081.022780.022541.022312.022123.021729.0
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▆▅▅▅▅▅▄▄▇▆▅██▇▇▇▇▆▆▆▅▅▅▅▅▅▄▄▄▃▃▃▂▂▂▂▂▂▁▂▁▁10346.010158.010028.010097.09960.09910.09755.09715.010537.010350.010160.010988.010883.010786.010703.010617.010536.010421.010299.010198.010076.010146.010087.010147.010003.09889.09718.09670.09529.09399.09323.09284.09166.09070.08947.09038.08929.08856.08795.08890.08839.08676.0
us-gaap:PropertyPlantAndEquipmentNet ██▇▇▇▇▆▆▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁29140.028272.027969.027159.026724.026236.025317.023758.022297.021864.021650.021612.021239.020870.020721.020307.020063.019866.019730.018550.018295.018127.018034.017867.017576.017235.016820.016499.016307.015985.015800.015511.015190.014866.014684.014404.014152.013924.013746.013422.013284.013053.0
us-gaap:LongTermInvestments ███▇▇▇▇▇▇▇▆▆▅▅▅▄▄▄▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁4070.03977.03919.03715.03714.03534.03788.03669.03566.03519.03368.03436.03041.02852.02797.02634.02550.02442.02273.02226.02101.01979.01936.01883.01921.01911.01869.01847.01841.01791.01794.01723.01654.01651.01591.01566.01518.01536.01462.01420.01501.01482.0
us-gaap:Goodwill ███████▅▅▅▅▅▅▅▅▅▅▅▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁2466.02466.02466.02465.02465.02466.02464.02293.02293.02293.02293.02293.02293.02293.02293.02293.02291.02292.02286.02018.02018.02018.02018.02018.02018.02018.02018.02018.02018.02018.02018.02018.02018.02018.02018.02020.02020.02020.02020.02020.02020.02020.0
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill dei:LegalEntity dte:DTEElectricNANA11.0NANANA15.0NANANA21.0NANANA25.0NANANA31.0NANANA39.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill dei:LegalEntity,us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass dte:DTEElectric,dte:RenewableEnergyCreditsNANA8.0NANANA15.020.0NANA20.0NANANA24.0NANANA30.0NANANA38.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill dei:LegalEntity,us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass dte:DTEElectric,dte:ZoneResourceCreditsNANA3.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▇██████▁2296.02318.02339.02358.02380.02402.02393.0940.0NANA849.0NANANA867.0NANANA842.0NANANA94.0100.0101.0110.0111.0120.0125.0131.0134.0136.0138.0135.0135.067.067.070.073.074.071.069.0
us-gaap:FiniteLivedIntangibleAssetsNet NANA2328.0NANANA2378.0919.0837.0846.0828.0864.0862.0867.0867.0883.0890.0837.0842.091.097.090.089.089.090.0100.0102.0108.0112.0118.0122.0122.0152.0154.0155.085.085.085.086.0NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestricted▁▅█520.0524.0527.0NANANA542.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted▁▅█520.0524.0527.0NANANA542.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerContractsNANA197.0NANANA192.0198.0NANA93.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerRelationshipsNANA2131.0NANANA2186.0721.0NANA735.0NANANA746.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestrictedNANANA531.0535.0NA542.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiarySGGRestrictedNANANA531.0535.0NA542.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▁▃▄▅▆▇█▃▂▁138.0145.0152.0157.0161.0164.0169.0145.0142.0138.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ███████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁10024.010074.010110.09744.09804.09936.09691.0195.0185.0158.0160.0152.0148.0159.0161.0175.0168.0168.0170.0175.0159.0157.0254.0248.0248.0245.0259.0243.0220.0193.0198.0198.0199.0196.0197.0190.0189.0188.0199.0192.0195.0204.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
 us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryOtherRestrictedNA19.022.0NANANA13.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestrictedNA19.022.0NANANA15.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryOtherRestrictedNANANA19.013.0NA13.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities dte:VariableInterestEntityPrimaryBeneficiaryRestrictedNANANA19.013.0NA15.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsPayableCurrent ▆▄▅▄▅▅▅▅▅▅█▆▅▄▆▅▅▄▅▃▂▁▃▃▃▃▄▃▄▄▄▃▃▂▃▂▂▂▃▂▂▁1173.0955.01029.0964.01025.01028.01076.01033.01051.0981.01329.01160.01059.0920.01171.0994.0988.0910.01079.0813.0745.0649.0809.0835.0848.0825.0973.0873.0946.0945.0962.0866.0808.0711.0848.0724.0728.0690.0782.0708.0733.0631.0
 us-gaap:DebtCurrent dei:LegalEntity dte:DTEElectricNANA462.0NANANA632.0NANANA0.0NANANANANANANA0.0NANANA151.0NANANA10.0NANANANANANANANANANANANANANANA
 us-gaap:DebtCurrent us-gaap:LongtermDebtType dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebtNANA462.0NANANA682.0NANANA1495.0NANANA104.0NANANA9.0NANANA465.0NANANANANANANANANANANANANANANANANANANA
us-gaap:DividendsPayableCurrent █▄▄▃█▃▃▃▇▃▃▃▆▃▂▂▆▂▂▂▅▂▂▂▅▂▂▂▄▁▁▁▄▁▁▁▄▁▁▁▃▁370.0210.0210.0196.0390.0195.0195.0173.0346.0173.0172.0161.0321.0160.0158.0148.0296.0148.0148.0138.0269.0131.0131.0131.0255.0124.0122.0122.0238.0116.0116.0116.0229.0108.0107.0107.0207.0100.099.099.0199.095.0
us-gaap:LiabilitiesCurrent ▆▃▃▅▇▇▇▆▆▆█▂▃▃▄▃▃▁▃▁▁▂▃▂▂▁▃▄▄▆▅▄▄▃▄▂▃▃▃▂▂▃3737.02595.02691.03417.04196.03972.03997.03865.03654.03647.04438.02117.02499.02541.02812.02598.02747.01834.02437.01969.01883.02209.02528.02273.02232.01839.02577.02805.02819.03569.03189.03008.02962.02476.02768.02309.02635.02530.02628.02100.02246.02555.0
us-gaap:OperatingLeaseLiabilityCurrent ▁▄▄▁▁▁▄██▄32.033.033.032.032.032.033.034.034.033.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▇▅█▅▅▄▅▃▃▃▅▄▃▃▆▄▃▃▅▂▁▁▄▃▃▂▅▅▄▅▅▄▆▄▆▅▅▄▆▆▅▄577.0521.0647.0509.0516.0437.0504.0419.0405.0423.0509.0462.0408.0411.0525.0429.0391.0417.0498.0355.0308.0299.0429.0412.0375.0347.0494.0475.0473.0489.0495.0457.0570.0473.0538.0479.0508.0424.0549.0536.0517.0465.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
 us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesNANA686.0NANANA698.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebt NANA19603.0NANANA16755.0NANANA13746.0NANANA12407.0NANANA11372.0NANANA9300.0NANANA8620.08171.08030.07979.08094.07729.07671.08046.07813.07735.08041.07600.07700.07700.07800.07900.0
 us-gaap:LongTermDebt dei:LegalEntity dte:DTEElectricNANA8308.0NANANA7240.0NANANA6590.0NANANA6065.0NANANA5925.0NANANA5635.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:JuniorSubordinatedDebtNANA1175.0NANANA1146.0NANANA1145.0NANANA1145.0NANANA756.0NANANA465.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent dei:LegalEntity dte:DTEElectric██▆▆▆▆▄▄▅▅▄▄▄▃▃▃▂▂▂▂▂▂▂▂▂▂▁8514.08764.07774.07773.07951.07638.06548.06847.07178.07178.06538.06537.06537.06018.06017.06016.05580.05879.05878.05877.05735.05438.05473.05492.05634.05634.05144.0NANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent dei:LegalEntity,us-gaap:LongtermDebtType dte:DTEElectric,dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebtNANA7774.0NANANA6548.0NANANA6538.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:LongtermDebtType dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebtNANA17802.0NANANA14778.0NANANA10982.0NANANA11039.0NANANA10506.0NANANA8280.0NANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations █▇▇▆▆▆▅▄▄▄▃▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁21891.019993.019001.018219.017341.017026.015935.013858.013569.012776.012134.013620.012705.012185.012185.011795.011358.011758.011269.09478.09343.08758.08835.08856.08835.08838.08343.07909.07813.06923.07214.06846.06806.07218.07014.07120.07212.07093.07187.07497.07507.07015.0
us-gaap:DeferredIncomeTaxLiabilitiesNet ▄▄▄▃▃▃▂▂▁▁▁▁▁▁▁██2952.02894.02822.02736.02650.02553.02315.02257.02063.02029.01975.01974.01936.01936.01888.04396.04293.0NA4162.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity,us-gaap:RetirementPlanType dte:DTEElectric,us-gaap:OtherPostretirementBenefitPlansDefinedBenefitNANA384.0NANANA367.0NANANA278.0NANANA311.0NANANA269.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:OtherPostretirementBenefitPlansDefinedBenefitNANA407.0NANANA0.0NANANA0.0NANANA61.0NANANA36.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:PensionPlansDefinedBenefitNANA797.0NANANA808.0NANANA837.0NANANA924.0NANANA1152.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▃▃▃▃▃▃▃▃▃██████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁161.0162.0164.0165.0168.0166.0164.0164.0173.0475.0480.0483.0474.0475.0478.0480.0483.0494.0488.019.021.023.023.021.018.013.015.017.018.020.033.034.035.036.038.042.042.043.044.039.039.044.0
us-gaap:OtherLiabilitiesNoncurrent ███▇▇▇▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁11469.011397.011215.010315.010310.010246.010114.0337.0333.0334.0364.0285.0288.0293.0323.0325.0339.0335.0349.0243.0226.0205.0207.0219.0254.0247.0281.0278.0269.0266.0297.0290.0283.0281.0306.0302.0297.0295.0331.0258.0250.0246.0
us-gaap:OperatingLeaseLiabilityNoncurrent ▁▃▄▅▇▇█▃▂▁98.0105.0111.0116.0121.0124.0127.0105.0102.098.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA31.0NANANA30.035.032.030.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo dei:LegalEntity dte:DTEElectricNANA12.0NANANA13.013.012.012.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA22.0NANANA26.026.023.022.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree dei:LegalEntity dte:DTEElectricNANA10.0NANANA12.011.011.011.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA13.0NANANA20.019.016.016.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour dei:LegalEntity dte:DTEElectricNANA8.0NANANA10.07.07.07.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA8.0NANANA12.016.013.013.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive dei:LegalEntity dte:DTEElectricNANA6.0NANANA8.06.06.06.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA61.0NANANA67.062.061.050.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive dei:LegalEntity dte:DTEElectricNANA32.0NANANA38.030.030.030.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:StockholdersEquity ████▇▇▇▆▅▆▅▅▅▅▄▄▄▄▄▄▃▄▃▃▃▃▃▃▂▃▂▂▂▂▂▂▁▁▁▁▁▁12378.012552.012425.012323.011724.011822.011672.010740.010396.010545.010237.010207.09844.09888.09512.09373.09088.09194.09011.09130.08778.08887.08772.08812.08539.08665.08327.08169.08008.08117.07921.07876.07552.07596.07373.07389.07142.07104.07009.06970.06785.06793.0
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ████▇▇▇▆▅▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▃▂▂▂▂▂▂▁▁▁▁▁▁12539.012714.012589.012488.011892.011988.011836.010904.010569.011020.010717.010690.010318.010363.09990.09853.09571.09688.09499.09149.08799.08910.08795.08833.08557.08678.08342.08186.08026.08137.07954.07910.07587.07632.07411.07431.07184.07147.07053.07009.06824.06837.0
us-gaap:CommonStockValue ████▇▇▇▄▄▄▄▄▄▄▃▃▃▃▃▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁5361.05344.05406.05369.05247.05235.05233.04370.04344.04324.04245.04232.04205.04163.03989.03978.03968.03958.04030.04137.04129.04118.04123.04117.04110.04093.03904.03900.03896.03894.03907.03885.03762.03683.03587.03567.03549.03453.03417.03418.03415.03428.0
us-gaap:RetainedEarningsAccumulatedDeficit ████▇▇▇▆▆▆▆▆▅▅▅▅▄▄▄▄▃▄▃▃▃▃▃▃▂▃▂▂▂▂▂▂▁▂▁▁▁▁7149.07342.07156.07092.06618.06732.06587.06516.06198.06364.06100.06093.05760.05848.05600.05515.05245.05365.05114.05131.04791.04909.04794.04845.04580.04727.04578.04402.04246.04360.04150.04142.03945.04069.03944.03969.03744.03804.03750.03698.03516.03513.0
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▅▅▄▄▃▃▃▃▄██▇▇██▇▆▅▄▄▄▃▂▂▂▂▅▅▅▅▂▂▁▁▃▂▂▁▃▃▃-132.0-134.0-137.0-138.0-141.0-145.0-148.0-146.0-146.0-143.0-120.0-118.0-121.0-123.0-120.0-120.0-125.0-129.0-133.0-138.0-142.0-140.0-145.0-150.0-151.0-155.0-155.0-133.0-134.0-137.0-136.0-151.0-155.0-156.0-158.0-147.0-151.0-153.0-158.0-146.0-146.0-148.0
us-gaap:MinorityInterest ▃▃▃▃▃▃▃▃▃██████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁161.0162.0164.0165.0168.0166.0164.0164.0173.0475.0480.0483.0474.0475.0478.0480.0483.0494.0488.019.021.023.023.021.018.013.015.017.018.020.033.034.035.036.038.042.042.043.044.039.039.044.0
us-gaap:StockIssuedDuringPeriodValueNewIssues NANANA11.0NANANANANANA0.010.016.0NANANANANANANANANA0.00.00.09.0NANANANA10.0NANANA10.0NANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:CommonStockNANANA11.0NANANANANANA0.010.016.0NANANANANANANANANA0.00.00.09.0NANANANA10.0NANANA10.09.010.010.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆█▇█▄█▅▃▄▅▄▄▄▆▄▂▂▆▂▃▃▅▃▂▃▅▄▁▄▃▃▃▅▄▃▄▄▄▃▂▃▅859.01057.0916.01100.0620.01061.0748.0534.0615.0752.0633.0614.0595.0838.0567.0367.0396.0787.0317.0495.0531.0741.0443.0288.0433.0747.0541.0222.0544.0532.0439.0448.0670.0597.0480.0568.0541.0620.0522.0327.0437.0722.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▆▆▇▅▁▆▇▇▆▆▇▇▇▇▇▇▄▇▇█▇▇▇▇▇█▇█▇█▇█▇█▇█▇█▇█-1223.0-705.0-977.0-908.0-843.0-1342.0-3174.0-1044.0-766.0-748.0-1011.0-956.0-794.0-586.0-760.0-555.0-608.0-641.0-1885.0-565.0-501.0-437.0-632.0-536.0-480.0-556.0-603.0-390.0-625.0-442.0-569.0-426.0-579.0-332.0-585.0-352.0-489.0-343.0-508.0-285.0-523.0-244.0
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity dte:DTEElectric▁▅▃▄▅▂▄▅▅▄▃▅▅▆▅▆▆▆▅▆▆▆▄▆▆▆▅▆▅█-1008.0-513.0-690.0-605.0-515.0-872.0-592.0-535.0-461.0-639.0-734.0-429.0-455.0-371.0-454.0-368.0-333.0-387.0-445.0-365.0-366.0-297.0-570.0-394.0-345.0-312.0-441.0-305.0-542.0-101.0NANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▁▂▂▄█▃▂▂▃▃▂▂▂▂▂▂▆▂▂▁▂▂▂▂▂▂▂▂▂▂▁▂▂▁▂▁▂▂▂▁2244.0702.0-385.0149.0168.0864.02443.0524.0152.0-19.0350.0360.099.0-155.0196.0189.0192.0-156.01594.0104.0-33.0-306.0159.085.0178.0-140.050.0153.058.0-44.0111.03.0-263.0-112.0111.0-342.076.0-288.08.0-57.0-50.0-346.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▆▁▃▂▄▂▂▂▂▂▂▂▃▂▂▂▂1880.01054.0-446.0341.0-55.0583.017.014.01.0-15.0-28.018.0-100.097.03.02.0-18.0-11.0NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:DepreciationDepletionAndAmortization █▇█▇▇▇▆▆▅▅▅▄▄▄▄▃▃▃▄▂▃▂▂▁▂▁▄▅▄▄▄▄▄▃▄▄▃▂▃▃▃▃380.0368.0384.0356.0350.0353.0340.0322.0305.0296.0298.0273.0272.0281.0274.0258.0249.0249.0274.0230.0243.0229.0227.0196.0220.0209.0290.0293.0282.0280.0283.0284.0268.0259.0271.0265.0250.0232.0243.0259.0248.0245.0
us-gaap:IncreaseDecreaseInAccountsPayable █▁132.0-20.0NA-2.0-54.0-24.03.0-44.041.0-288.0137.043.0102.0-136.0104.02.056.0-33.0106.049.083.0-93.0-33.0-6.04.0-123.080.0-56.04.0100.030.0-45.0-97.0126.0-75.031.0-49.053.057.0-61.088.0-61.0
us-gaap:IncreaseDecreaseInInventories ▆▄▃▅▆▄▄▅▇▂▅▆▆▂▄▆▆▃▄▆▆▃▄▆▆▂▅▇▇▂▃▂▃█▅▄▄▇▁▆▇▃105.0-52.0-99.030.079.0-55.0-54.041.0161.0-207.043.093.078.0-182.0-37.073.0103.0-135.0-27.076.057.0-143.0-37.0109.099.0-172.012.0174.0138.0-147.0-88.0-168.0-88.0221.030.0-76.0-44.0125.0-244.092.0148.0-125.0
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▄█▄▄▅▄▄▆▆▇▁▆▄▅▃▆▅▇▃▆▅▇▄▅▅▄-101.0187.0-75.0-74.0-13.0-104.0-96.057.021.0131.0-312.037.0-76.0-62.0-144.050.0-2.0150.0-205.057.0-44.097.0-71.0-1.0-6.0-99.0NA72.0NANANANA-231.0-44.0-84.0-58.0-109.0-191.0-46.0218.0-26.0-240.0
 us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet dei:LegalEntity dte:DTEElectric▅█▅▇▆▂▄▆▅█▁▆▄▆▄▇▅▇▃▆▄▆▄▆▅▃▄▅9.0150.023.0107.045.0-132.0-40.068.023.0146.0-172.067.0-37.041.0-27.083.04.087.0-85.075.0-24.068.0-49.039.017.0-65.0-48.026.0NANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆█▇█▄█▅▃▄▅▄▄▄▆▄▂▂▆▂▃▃▅▃▂▃▅▄▁▄▃▃▃▅▄▃▄▄▄▃▂▃▅859.01057.0916.01100.0620.01061.0748.0534.0615.0752.0633.0614.0595.0838.0567.0367.0396.0787.0317.0495.0531.0741.0443.0288.0433.0747.0541.0222.0544.0532.0439.0448.0670.0597.0480.0568.0541.0620.0522.0327.0437.0722.0
us-gaap:NetIncomeLoss ▃▇▄█▄▆▄▅▃▇▃▅▄▆▅▄▃▇▂▆▂▄▁▄▂▄▅▂▂▅▂▃▁▄▁▄▂▂▂▃▃▃179.0397.0275.0476.0277.0340.0267.0319.0182.0401.0191.0334.0234.0361.0287.0270.0177.0400.0131.0338.0152.0247.080.0265.0109.0273.0299.0156.0124.0326.0124.0198.0105.0234.081.0227.0146.0156.0150.0183.0202.0176.0
us-gaap:ProfitLoss ▃▇▄█▄▆▄▅▃▇▃▆▄▆▅▄▃▇▂▅▂▄▁▄▁▄▅▂▂▅▂▃▂▄▁▄▂▂▂▃▃▃179.0397.0275.0477.0277.0342.0268.0317.0179.0408.0196.0335.0236.0351.0280.0263.0175.0394.0124.0325.0145.0240.077.0264.0105.0274.0301.0157.0126.0327.0126.0200.0107.0235.083.0230.0147.0158.0157.0185.0200.0178.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▆▆▇▅▁▆▇▇▆▆▇▇▇▇▇▇▄▇▇█▇▇▇▇▇█▇█▇█▇█▇█▇█▇█▇█-1223.0-705.0-977.0-908.0-843.0-1342.0-3174.0-1044.0-766.0-748.0-1011.0-956.0-794.0-586.0-760.0-555.0-608.0-641.0-1885.0-565.0-501.0-437.0-632.0-536.0-480.0-556.0-603.0-390.0-625.0-442.0-569.0-426.0-579.0-332.0-585.0-352.0-489.0-343.0-508.0-285.0-523.0-244.0
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity dte:DTEElectric▁▅▃▄▅▂▄▅▅▄▃▅▅▆▅▆▆▆▅▆▆▆▄▆▆▆▅▆▅█-1008.0-513.0-690.0-605.0-515.0-872.0-592.0-535.0-461.0-639.0-734.0-429.0-455.0-371.0-454.0-368.0-333.0-387.0-445.0-365.0-366.0-297.0-570.0-394.0-345.0-312.0-441.0-305.0-542.0-101.0NANANANANANANANANANANANA
 us-gaap:PaymentsToAcquirePropertyPlantAndEquipment dei:LegalEntity dte:DTEElectric█▃▅▄▃▇▄▃▃▃▅▂▂▂▃▂▁▂▃▁▁▁▃▂▁▁▂▁▃▁1010.0502.0693.0600.0510.0871.0589.0538.0542.0531.0741.0423.0455.0370.0471.0366.0329.0408.0504.0359.0325.0315.0500.0380.0354.0311.0418.0311.0478.0354.0NANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▁▂▂▄█▃▂▂▃▃▂▂▂▂▂▂▆▂▂▁▂▂▂▂▂▂▂▂▂▂▁▂▂▁▂▁▂▂▂▁2244.0702.0-385.0149.0168.0864.02443.0524.0152.0-19.0350.0360.099.0-155.0196.0189.0192.0-156.01594.0104.0-33.0-306.0159.085.0178.0-140.050.0153.058.0-44.0111.03.0-263.0-112.0111.0-342.076.0-288.08.0-57.0-50.0-346.0
us-gaap:ProceedsFromIssuanceOfLongTermDebt █▃▃▃▂▄▃▁▃▂▁▃▂▁▂▂▁▂▄▁▂▁▁▁▂▂▂▃▂▁▂▂▁▂▂▁▂▁▂▂3046.0989.0968.01039.0593.01092.01073.0-5.0794.0644.0-1.0913.0520.00.0388.0515.0-1.0496.01389.058.0588.00.00.0163.0298.0495.0447.0694.0595.00.0466.0397.0-1.0372.0264.0-1.0496.00.0271.0361.0NANA
us-gaap:RepaymentsOfLongTermDebt NANA200.0382.00.0300.0821.00.00.00.00.03.0NANA0.0379.01.05.0485.09.0302.011.026.0142.01.0117.015.0558.0549.0115.0106.0340.0374.0141.0192.0307.054.086.0294.0440.0627.094.0
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity dte:DTEElectricNANA0.0332.00.0300.0NANA0.00.00.0NANANA0.0300.00.00.00.00.00.010.020.00.00.0115.00.0556.0168.0113.0NANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType dte:DTEElectric,dte:A2010SeriesB3.45SeniorNotesDue2020,us-gaap:SeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType dte:DTEElectric,dte:A563SeniorNotesMaturing2020,us-gaap:SeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType dte:DTEElectric,dte:A700MortgageBondsDueIn2021,us-gaap:MortgagesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType dte:DTEElectric,dte:SeriesB2011390GeneralAndRefundingMortgageBonds,us-gaap:MortgagesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType dte:DTEGas,dte:A2008SeriesI636SeniorNotesMaturing2020,us-gaap:SeniorNotesNANANA50.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity,us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:DTEElectric,dte:SeriesB2011390GeneralAndRefundingMortgageBonds,us-gaap:Mortgages,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType dte:SeriesB20165.375JuniorSubordinatedDebenturesDue2076,us-gaap:SeniorNotes300.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType dte:SeriesC20125.25JuniorSubordinatedDebenturesDue2062,us-gaap:JuniorSubordinatedDebtNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A260SeniorNotesDueIn2022,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A330SeniorNotesDueIn2022,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A340SeniorNotesDueIn2029,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A350SeniorNotesDueIn2024,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A370SeniorNotesDueIn2023,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A380SeniorNotesDueIn2027,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A385SeniorNotesDueIn2023,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType dte:A6375SeniorNotesDueIn2033,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:StatementScenario,us-gaap:DebtInstrument,us-gaap:SubsequentEventType srt:ScenarioForecast,dte:A385SeniorNotesDueIn2023,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:StatementScenario,us-gaap:DebtInstrument,us-gaap:SubsequentEventType srt:ScenarioForecast,dte:A6375SeniorNotesDueIn2033,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:StatementScenario,us-gaap:SubsequentEventType srt:ScenarioForecast,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:SubsequentEventType us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividendsCommonStock ██▇▆▇▇▆▆▆▆▅▄▄▅▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁210.0210.0186.0184.0195.0195.0174.0173.0173.0172.0161.0150.0151.0158.0148.0148.0148.0148.0138.0131.0131.0131.0131.0124.0124.0122.0122.0116.0116.0116.0116.0114.0108.0107.0107.0101.0100.099.0100.099.095.095.0
us-gaap:PaymentsForRepurchaseOfCommonStock ▁█0.054.0NANANANANANANANA0.00.00.00.00.00.00.051.00.00.00.033.00.00.00.00.00.00.02.050.00.00.00.00.00.00.00.00.00.00.09.09.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
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
Value53615344540653695247523552334370434443244245423242054163398939783968395840304137412941184123411741104093390439003896389439073885376236833587356735493453341734183415342834403257
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.811.411.912.112.012.112.511.411.811.911.712.012.212.311.812.012.212.312.614.014.414.414.314.414.514.614.014.814.914.915.114.814.514.213.613.813.613.413.113.813.914.013.813.5

us-gaap:CommonStockValue dei:LegalEntity

dte:DTEElectric


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value544754475447521148114811481146314631463146314306430643064306420642064206420640864086408640864086408637863786
Percentage of CommonStockValue101.6101.9100.897.191.791.991.9106.0106.6107.1109.1101.7102.4103.4107.9105.7106.0106.3104.498.899.099.299.199.299.492.597.0
Percentage of Assets11.011.712.011.711.011.111.512.112.612.712.812.212.512.712.812.712.913.113.113.914.214.314.214.314.413.513.5
Percentage of Assets dte:DTEElectric19.719.820.519.918.619.119.619.220.020.220.619.619.920.320.320.020.320.520.520.220.720.920.921.021.320.120.3

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value193193193193192192192183183183181181181181179179179179179179179179179179179179176176176177177176174173172172171170169169169169169165163163
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value194194193193192184184183182181180179179179180180180180179178177177177176175173172171170170170170170169166
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value193194193192192183183182182181180179179179179179179179179178177177177175174173172170170169169169169169166
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value9.5101010106.26.66.66.26.36.8
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.922.051.422.471.441.771.41.740.992.21.051.841.292.011.61.510.992.230.731.880.841.380.451.470.611.531.680.880.71.840.71.130.61.350.471.320.860.910.881.081.191.040.90.970.511.380.720.920.511.09
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.922.051.422.461.441.761.41.730.992.191.051.841.292.01.61.510.992.230.731.880.841.370.451.470.611.531.680.880.71.840.71.130.61.3401.310.860.910.881.071.191.040.90.960.511.380.720.920.511.09
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

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

us-gaap:AllocatedShareBasedCompensationExpense

dte:DTEElectric, srt:ParentCompany


Allocated
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
Value11149.0127.09.010.09.0111311118.09.06.010.010.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.40.30.40.30.30.30.30.40.40.30.30.30.20.20.30.4
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric srt:ParentCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value181400276479281343265319179403189337236358287275181404136342150252852661132732771571273251392021062367023114816113818320417715316679230
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue5.610.68.414.610.911.48.410.26.211.55.09.57.59.58.88.56.312.54.711.76.69.83.410.25.09.19.06.14.78.35.58.54.89.43.010.57.47.26.48.110.17.30.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

dte:DTEElectric


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2382081014001839412930713314756305163143139219138106752851351279221699165119137130136
Percentage of ComprehensiveIncomeNetOfTax131.552.036.683.565.127.448.796.274.336.529.690.569.139.948.479.676.226.255.183.390.050.4108.281.287.660.443.087.3102.441.8
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.53.112.27.13.14.19.84.64.21.58.65.23.84.26.74.83.32.69.76.04.93.78.34.45.53.95.34.83.5
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.07.823.714.07.810.120.211.211.94.320.112.811.910.915.311.39.06.017.711.111.07.915.68.613.79.610.110.19.6

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-31
Value01000000.002000000.01000000.0-2000000.0-3000000.07000000.05000000.01000000.02000000.0-10000000.0-7000000.0-7000000.0-2000000.0-6000000.0-7000000.0-13000000.0-7000000.0-7000000.0-3000000.0-1000000.0-4000000.01000000.02000000.01000000.02000000.01000000.02000000.02000000.02000000.01000000.02000000.03000000.01000000.02000000.07000000.02000000.0-2000000.0-2000000.04000000.0-1000000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest0.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.10.0-0.1-0.10.20.10.00.1-0.3-0.2-0.2-0.1-0.2-0.2-0.4-0.3-0.3-0.1-0.0-0.20.00.10.00.10.00.10.10.10.00.10.10.00.10.30.1-0.1-0.10.00.0

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
Value181400276480281345266317176410194338238348280268179398129329143245822651092742791581293261412041.02.0-546.02341495.014518520217915716980231
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 RegulatedAndUnregulatedOperatingRevenue5.610.68.414.610.911.48.410.26.111.75.29.57.59.38.68.36.312.34.511.26.39.53.310.24.89.29.16.14.88.35.68.50.00.1-23.210.77.40.26.78.210.07.40.00.00.00.0

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
Value2907324128232676221624762733266925882972341831212830324929152827255226672573242120062185235321582064252325362356244933702292205820022106204817961731193718271866174020411823175315361981
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 RegulatedAndUnregulatedOperatingRevenue90.085.885.981.585.881.986.885.689.684.691.187.989.686.689.187.189.482.489.582.788.785.294.683.191.084.682.490.890.885.890.586.290.083.787.282.086.086.584.582.886.284.20.00.00.00.0

us-gaap:CostsAndExpenses dei:LegalEntity

dte:DTEElectric


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value10681061108911491046998105610799671009112810771007952994103994695810561107950908973985933935984108510221139
Percentage of CostsAndExpenses36.732.738.642.947.240.338.640.437.434.033.034.535.629.334.136.837.135.941.045.747.441.641.445.645.237.138.846.141.733.8
Percentage of RegulatedAndUnregulatedOperatingRevenue33.128.133.135.040.533.033.534.633.528.730.130.331.925.430.432.033.129.636.737.842.035.439.137.941.131.332.041.837.929.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.084.168.079.982.382.571.081.381.787.070.878.979.078.072.577.781.584.568.878.278.883.571.181.377.779.780.079.880.8

Gain Loss On Investments

us-gaap:GainLossOnInvestments us-gaap:FairValueByAssetClass

us-gaap:GainLossOnInvestments

us-gaap:AssetHeldInTrust


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.02.04.02.022-31.010.03.07.017
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.9-1.00.30.10.20.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AssetHeldInTrust0.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecurities


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.02.03.02.016-23.09.01.04.013
Percentage of GainLossOnInvestments100.0100.075.0100.072.774.290.033.357.176.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.6-0.80.30.00.10.4
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:FixedIncomeSecurities


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.00.06.0-8.01.02.03.04.0
Percentage of GainLossOnInvestments25.00.027.325.810.066.742.923.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.2-0.30.00.10.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:FixedIncomeSecurities0.00.00.00.00.00.00.00.0

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2021-06-30
Value8000000.0
Percentage of GainsLossesOnExtinguishmentOfDebt100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.2

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value20142532454028339129836420046217336925541921433723250415243519532357366131396436178176485155276151340174337
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue6.211.29.916.411.012.99.511.76.913.14.610.48.111.26.510.48.115.65.314.98.612.62.314.15.813.314.26.96.512.36.111.66.813.57.415.4

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity

dte:DTEElectric


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value26522811445820810715436615817677386207187216337212163126441211197140333152211198211207
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest131.853.635.284.873.527.451.7100.579.038.144.5104.681.244.6100.9100.091.432.382.9101.4108.261.0245.691.0116.053.345.4118.5117.6
Percentage of RegulatedAndUnregulatedOperatingRevenue8.26.03.513.98.13.54.911.75.55.02.110.96.65.06.610.47.45.04.415.19.37.75.612.86.77.16.48.17.7
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.08.827.115.98.812.024.113.314.35.925.416.215.516.923.517.413.910.127.417.417.112.024.013.317.516.015.516.2

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


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
Value222849636.04930472154-23.0341968-66.07457110281105083-20.010226122135215015829764410535108707387101-24.0103599244116
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.70.71.51.90.21.61.01.50.71.5-0.61.00.61.8-2.02.32.03.41.03.82.23.2-0.83.91.14.14.40.81.94.01.13.22.04.21.54.93.53.34.04.5-1.24.30.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity

dte:DTEElectric


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value272013582513255925292181444778118745751156767048117537469757777
Percentage of IncomeTaxExpenseBenefit122.771.426.592.1416.726.583.3125.5119.053.7-91.3238.2231.669.1-118.2159.5129.851.8182.1141.8152.084.3-240.0114.7203.860.751.1357.1154.048.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.80.50.41.81.00.40.81.90.90.80.62.31.41.32.43.62.61.81.85.33.42.71.94.52.32.52.22.92.92.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.01.03.41.91.12.03.92.12.31.65.33.43.96.18.26.14.94.19.76.36.14.18.44.66.25.65.56.05.5

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
Value190181188178179175173162154152147142135135132146133125131114114113109116115110106107106110109106112109106112109113124120124126131142136140
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 RegulatedAndUnregulatedOperatingRevenue5.94.85.75.46.95.85.55.25.34.33.94.04.33.64.04.54.73.94.63.95.04.44.44.55.13.73.44.13.92.84.34.45.04.34.55.15.45.05.75.36.15.20.00.00.00.0

us-gaap:InterestExpense dei:LegalEntity

dte:DTEElectric


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value858282838581798078767373696868687266686665656266676361656163
Percentage of InterestExpense44.745.343.646.647.546.345.749.450.650.049.751.451.150.451.546.654.152.851.957.957.057.556.956.958.357.357.560.757.557.3
Percentage of RegulatedAndUnregulatedOperatingRevenue2.62.22.52.53.32.72.52.62.72.21.92.12.21.82.12.12.52.02.42.32.92.52.52.53.02.12.02.52.31.6
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.06.34.96.56.76.25.36.66.25.64.85.45.65.34.75.95.65.44.15.35.65.34.85.85.24.94.84.84.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value17939727547627734026731918240119133423436128727017740013133815224780265109273299156124326124198105234812271461561501832021761521638622912015183178
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue5.510.58.414.510.711.38.510.26.311.45.19.47.49.68.88.36.212.44.611.56.79.63.210.24.89.19.76.04.68.34.98.34.79.33.410.47.37.06.98.110.07.30.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2382081014001839412930713314756305163140138219138106752851351279221699137129136130137
Percentage of NetIncomeLoss133.052.436.784.066.127.648.396.273.136.729.391.369.738.848.181.178.026.557.384.388.851.4115.081.590.850.243.187.2104.842.0
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.53.112.27.13.14.19.84.64.21.58.65.23.74.26.74.83.32.69.76.04.93.78.34.44.64.25.24.83.5
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.07.823.714.07.810.120.211.211.94.320.112.811.610.815.311.39.06.017.711.111.07.915.68.611.410.510.010.19.7

us-gaap:NetIncomeLoss dei:LegalEntity, us-gaap:StatementEquityComponents

dte:DTEElectric, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2382084001839430713314756305163140138219138106752851351279221699137
Percentage of NetIncomeLoss133.052.484.066.127.696.273.136.729.391.369.738.848.181.178.026.557.384.388.851.4115.081.590.850.2
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.512.27.13.19.84.64.21.58.65.23.74.26.74.83.32.69.76.04.93.78.34.44.6
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments

dte:Electric


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2382083981839430713314730516314021913810628513512721499136135129136101179891156619412796
Percentage of NetIncomeLoss133.052.483.666.127.696.273.136.791.369.738.881.178.026.584.388.851.480.890.849.886.5104.041.781.590.484.849.181.585.587.061.5
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.512.17.13.19.84.64.28.65.23.76.74.83.39.76.04.98.24.44.65.24.83.54.07.54.04.62.88.96.34.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Electric16.915.223.513.97.720.211.211.920.112.811.60.00.00.00.00.00.00.00.00.00.00.00.00.00.07.00.00.00.09.80.0

dte:EnergyTrading


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-66.0-55.0-28.0-1.034-14.0-6.032-13.0-5.0311.00.096-4.0-23.0-7.012-3.0-9.0-22.0-14.042-57.0-6.0-2.07.09.01.04.0-2.01622122.06.0-12.0
Percentage of NetIncomeLoss-36.9-13.9-5.9-0.410.0-4.4-3.38.0-3.9-2.18.60.40.024.0-1.2-15.1-2.84.5-2.8-3.3-14.1-11.312.9-46.0-3.0-1.93.011.10.42.7-1.310.712.05.91.13.9-7.4
Percentage of RegulatedAndUnregulatedOperatingRevenue-2.0-1.5-0.9-0.01.1-0.4-0.20.9-0.4-0.20.80.00.03.0-0.1-1.0-0.30.5-0.1-0.3-0.8-0.51.1-2.3-0.3-0.10.30.40.00.2-0.10.71.00.60.10.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:EnergyTrading-5.7-3.8-2.6-0.13.7-1.3-0.52.5-1.0-0.42.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.40.00.00.01.70.00.00.00.00.00.00.0

dte:Gas


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7.0169-20.01.0121-38.08.0151-30.014104-15.01.0107-4.01387-11.0-7.0111-16.0-4.012952-13.08.096554.04.052
Percentage of NetIncomeLoss3.942.6-4.20.435.6-11.94.437.7-9.06.028.8-5.60.626.8-1.28.635.2-4.2-6.440.7-10.3-3.239.641.9-6.67.641.067.91.82.733.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.24.5-0.60.04.0-1.20.34.3-0.80.42.8-0.50.03.3-0.10.63.4-0.4-0.33.7-0.6-0.13.32.1-0.50.43.82.30.20.22.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Gas2.627.6-11.60.422.4-24.53.323.4-18.35.518.90.00.00.00.00.00.00.00.00.00.00.00.00.00.03.20.00.00.01.90.0

dte:GasStorageAndPipelines


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value647910470726050486660623640452835302725272018212116161713141717151314151512
Percentage of NetIncomeLoss35.819.921.825.321.218.827.512.019.825.617.213.322.611.28.323.012.110.222.99.912.814.56.416.98.115.27.316.06.211.610.910.07.16.98.59.97.4
Percentage of RegulatedAndUnregulatedOperatingRevenue2.02.13.22.72.41.91.71.41.91.91.71.11.41.41.01.51.21.01.10.90.80.70.50.80.70.70.70.60.60.80.80.70.60.70.60.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:GasStorageAndPipelines30.840.151.040.742.447.641.341.454.149.252.10.00.00.00.00.00.00.00.00.00.00.00.00.00.051.60.00.00.063.00.00.00.00.00.00.00.0

dte:PowerAndIndustrialProjects


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1428472530492926584345443030341517328.03338131520277.0122.02210.08.011125.010.01926
Percentage of NetIncomeLoss7.87.19.99.08.815.415.96.517.418.412.516.316.97.510.19.96.912.17.312.124.410.54.616.113.66.75.12.59.76.85.17.36.62.55.712.516.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.71.41.01.01.61.00.71.61.41.21.41.10.91.20.70.71.20.41.11.50.50.40.81.10.30.50.11.00.50.40.50.50.20.40.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:PowerAndIndustrialProjects3.67.714.511.49.812.17.26.79.58.07.90.00.00.00.00.00.00.00.00.00.00.00.00.00.01.60.00.00.02.20.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-78.0-32.0-25.0-1.0-11.0-45.0-32.0-3.0-52.0-41.0-21.0-15.0-32.016-1.0-23.0-7.0-9.0-13.0-25.01.0-18.0-17.0-13.0-5.0-13.0-13.0-11.0-8.0-14.0-15.0-24.0-8.072
Percentage of NetIncomeLoss-43.6-8.1-5.3-0.4-3.2-14.1-17.6-0.7-15.6-17.5-5.8-5.6-18.14.0-0.3-15.1-2.8-3.4-11.9-9.20.6-14.5-5.2-10.5-2.5-12.4-5.6-13.6-3.5-9.6-9.6-16.0-4.435.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-2.4-0.8-0.8-0.0-0.4-1.4-1.1-0.1-1.5-1.3-0.6-0.5-1.10.5-0.0-1.0-0.3-0.3-0.6-0.80.0-0.7-0.4-0.5-0.2-0.6-0.5-0.5-0.4-0.7-0.7-1.1-0.43.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value01000000.002000000.01000000.0-2000000.0-3000000.07000000.05000000.01000000.02000000.0-10000000.0-7000000.0-7000000.0-2000000.0-6000000.0-7000000.0-13000000.0-7000000.0-7000000.0-3000000.0-1000000.0-4000000.01000000.02000000.01000000.02000000.01000000.02000000.02000000.02000000.01000000.02000000.03000000.01000000.02000000.07000000.02000000.0-2000000.02000000.04000000.03000000.01000000.01000000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest0.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.10.0-0.1-0.10.20.10.00.1-0.3-0.2-0.2-0.1-0.2-0.2-0.4-0.3-0.3-0.1-0.0-0.20.00.10.00.10.00.10.10.10.00.10.10.00.10.30.1-0.10.10.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


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
Value178397275475277339267318182400191333234360287269177399130338152247
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue5.510.58.414.510.711.28.510.26.311.45.19.47.49.68.88.36.212.34.511.56.79.6

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


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
Value178397275475277339267318182400191333234360287269177399130338152247
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue5.510.58.414.510.711.28.510.26.311.45.19.47.49.68.88.36.212.34.511.56.79.6

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
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-121000000.0-112000000.0-141000000.0-68000000.0-84000000.0-155000000.0-117000000.0-86000000.0-100000000.0-80000000.0-159000000.0-60000000.0-74000000.0-85000000.0-142000000.0-81000000.0-71000000.0-65000000.0-149000000.0-72000000.0-61000000.0-58000000.0-77000000.0-74000000.0-73000000.0-65000000.0-106000000.0-61000000.0-73000000.0-75000000.0-86000000.0-53000000.0-72000000.0-70000000.0-89000000.0-72000000.0-77000000.0-81000000.0-102000000.0-113000000.0-112000000.0-109000000.0-135000000.0-128000000.0-125000000.0-126000000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-3.7-3.0-4.3-2.1-3.3-5.1-3.7-2.8-3.5-2.3-4.2-1.7-2.3-2.3-4.3-2.5-2.5-2.0-5.2-2.5-2.7-2.3-3.1-2.8-3.2-2.2-3.4-2.4-2.7-1.9-3.4-2.2-3.2-2.8-3.8-3.3-3.8-3.6-4.7-5.0-5.6-4.50.00.00.00.0

us-gaap:NonoperatingIncomeExpense dei:LegalEntity

dte:DTEElectric


Nonoperating
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
Value-75000000.0-71000000.0-92000000.0-83000000.0-55000000.0-107000000.0-70000000.0-74000000.0-65000000.0-50000000.0-91000000.0-58000000.0-62000000.0-66000000.0-65000000.0-58000000.0-60000000.0-54000000.0-67000000.0-60000000.0-54000000.0-48000000.0-52000000.0-67000000.0-62000000.0-57000000.0-52000000.0-61000000.0-52000000.0-57000000.0
Percentage of NonoperatingIncomeExpense62.063.465.2122.165.569.059.886.065.062.557.296.783.877.645.871.684.583.145.083.388.582.867.590.584.987.749.1100.071.276.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-2.3-1.9-2.8-2.5-2.1-3.5-2.2-2.4-2.3-1.4-2.4-1.6-2.0-1.8-2.0-1.8-2.1-1.7-2.3-2.0-2.4-1.9-2.1-2.6-2.7-1.9-1.7-2.4-1.9-1.5
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.0-7.1-4.9-4.2-8.8-5.5-4.9-5.5-4.0-7.0-3.8-4.9-5.5-5.1-4.0-4.9-4.6-5.4-3.7-4.4-4.2-4.5-4.8-5.4-4.7-4.2-4.5-4.1-4.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value322537465608367546415450300542332429329504356418303569301507256381134440204461542239249560241329223410267410294312346399288390350386256472307332215395
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue10.014.214.118.514.218.113.214.410.415.48.912.110.413.410.912.910.617.610.517.311.314.85.416.99.015.417.69.29.214.29.513.810.016.311.418.714.613.916.017.714.316.10.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss dei:LegalEntity

dte:DTEElectric


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value340299206541263214224440223226168444269253281395272217193501265245192400214268250272259271
Percentage of OperatingIncomeLoss105.655.744.389.071.739.254.097.874.341.750.6103.581.850.278.994.589.838.164.198.8103.564.3143.390.9104.958.146.1113.8104.048.4
Percentage of RegulatedAndUnregulatedOperatingRevenue10.57.96.316.510.27.17.114.17.76.44.512.58.56.78.612.29.56.76.717.111.79.57.715.49.49.08.110.59.66.9
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.015.932.020.117.717.529.018.718.313.029.221.121.022.027.522.318.515.531.221.821.216.528.918.722.320.320.020.219.2

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1000000.01000000.0-1000000.01000000.01000000.01000000.01000000.0-4000000.0-6000000.0-3000000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.0-0.00.00.00.00.0-0.1-0.2-0.1

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2.03.01.03.04.03.0-2.00.0-3.02.0-2.03.02.0-3.00.05.04.04.05.04.0-2.05.05.01.04.00.0-22.01.03.0-1.0154.01.02.0-11.04.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.00.10.20.1-0.10.0-0.10.1-0.10.10.1-0.10.00.20.10.10.20.1-0.10.20.20.00.20.0-0.70.00.1-0.00.60.20.00.1-0.50.2

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.03.03.04.03.0-3.02.03.02.02.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0-66.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.20.1-0.10.10.10.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.0

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
Value179397275477277342268317179408196335236351280263175394124325145240772641052743011571263271262001072358323014715815718520017815616687230
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 RegulatedAndUnregulatedOperatingRevenue5.510.58.414.510.711.38.510.26.211.65.29.47.59.48.68.16.112.24.311.16.49.43.110.24.69.29.86.14.78.35.08.44.89.33.510.57.37.17.38.29.97.30.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312011-03-31
Value1.00.02.0-2.0-3.07.05.01.02.0-10.0-7.0-7.0-2.0-6.0-7.0-13.0-7.0-7.0-3.0-1.0-4.01.02.01.02.01.02.02.0
Percentage of ProfitLoss0.20.00.6-0.6-1.71.72.60.30.8-2.8-2.5-2.7-1.1-1.5-5.6-4.0-4.8-2.9-3.9-0.4-3.80.40.70.61.60.31.61.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.1-0.1-0.10.20.10.00.1-0.3-0.2-0.2-0.1-0.2-0.2-0.4-0.3-0.3-0.1-0.0-0.20.00.10.00.10.00.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1793974762773403191824011913342343612872701774001313381522478026510927329915612432612419810523481227146156150183202176630
Percentage of ProfitLoss100.0100.099.8100.099.4100.6101.798.397.499.799.2102.8102.5102.7101.1101.5105.6104.0104.8102.9103.9100.4103.899.699.399.498.499.798.499.098.199.697.698.799.398.795.598.9101.098.9403.8
Percentage of RegulatedAndUnregulatedOperatingRevenue5.510.514.510.711.310.26.311.45.19.47.49.68.88.36.212.44.611.56.79.63.210.24.89.19.76.04.68.34.98.34.79.33.410.47.37.06.98.110.07.30.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Regulated And Unregulated Operating Revenue

us-gaap:RegulatedAndUnregulatedOperatingRevenue

us-gaap:RegulatedAndUnregulatedOperatingRevenue


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value322937783288328425833022314831192888351437503550315937533271324528553236287429282262256624872598226829843078259526983930253323872225251623492190201322392163225420182423
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue dei:LegalEntity

dte:DTEElectric


Regulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1295169013091212128015191190123512961521127612051275143412181175124916081215115311651385114712031234135712811410
Percentage of RegulatedAndUnregulatedOperatingRevenue39.451.550.740.140.748.741.235.134.642.840.432.139.044.242.736.343.554.953.744.946.853.350.640.340.152.347.535.9
Percentage of RegulatedAndUnregulatedOperatingRevenue39.451.550.740.140.748.741.235.134.642.840.432.139.044.242.736.343.554.953.744.946.853.350.640.340.152.347.535.9
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue dei:LegalEntity, us-gaap:ContractWithCustomerSalesChannel, us-gaap:StatementBusinessSegments

dte:DTESustainableGeneration, dte:Other, dte:Electric


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value3.04.04.03.03.04.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTESustainableGeneration dte:Other dte:Electric100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-216.0-201.0-192.0-172.0-112.0-124.0-167.0-195.0-181.0-172.0-186.0-201.0-198.0-186.0-139.0-169.0-194.0-202.0-151.0-210.0-174.01528-223.0-236.0-201.0-219.0-230.0-198.0-227.0-209.0-242.0-200.0-217.0-203.0-234.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-6.7-5.3-5.8-5.2-4.3-4.1-5.3-6.3-6.3-4.9-5.0-5.7-6.3-5.0-4.2-5.2-6.8-6.2-5.3-7.2-7.761.4-8.6-10.4-6.7-7.1-8.9-7.3-5.8-8.3-10.1-9.0-8.6-8.6-10.7
Percentage of RegulatedAndUnregulatedOperatingRevenue-6.7-5.3-5.8-5.2-4.3-4.1-5.3-6.3-6.3-4.9-5.0-5.7-6.3-5.0-4.2-5.2-6.8-6.2-5.3-7.2-7.761.4-8.6-10.4-6.7-7.1-8.9-7.3-5.8-8.3-10.1-9.0-8.6-8.6-10.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IntersegmentElimination, dte:Electric


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-15.0-16.0-15.0-16.0-15.0-15.0-13.0-16.0-13.0-14.0-13.0-13.0-13.0-13.0-12.0-11.0-13.0-12.0-11.0-15.0-8.0-9.0-9.0-9.0-9.0-8.0-7.0-7.0-7.0-6.0-7.0-6.0-7.0-7.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.5-0.4-0.5-0.5-0.6-0.5-0.4-0.5-0.5-0.4-0.3-0.4-0.4-0.3-0.4-0.3-0.5-0.4-0.4-0.5-0.4-0.4-0.3-0.4-0.3-0.3-0.3-0.2-0.3-0.3-0.3-0.2-0.3-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.5-0.4-0.5-0.5-0.6-0.5-0.4-0.5-0.5-0.4-0.3-0.4-0.4-0.3-0.4-0.3-0.5-0.4-0.4-0.5-0.4-0.4-0.3-0.4-0.3-0.3-0.3-0.2-0.3-0.3-0.3-0.2-0.3-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination dte:Electric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, dte:EnergyTrading


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-13.0-13.0-8.0-9.0-8.0-6.0-6.0-4.0-5.0-7.0-9.0-6.0-5.0-7.0-8.0-8.0-8.0-11.0-11.0-10.0-8.0-9.0-7.0-7.0-9.0-8.0-7.0-9.0-7.0-13.0-12.0-11.0-9.0-10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.4-0.3-0.2-0.3-0.3-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.3-0.4-0.3-0.4-0.4-0.3-0.3-0.3-0.3-0.3-0.2-0.3-0.5-0.5-0.4-0.4-0.5
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.4-0.3-0.2-0.3-0.3-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.3-0.4-0.3-0.4-0.4-0.3-0.3-0.3-0.3-0.3-0.2-0.3-0.5-0.5-0.4-0.4-0.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination dte:EnergyTrading100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, dte:Gas


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-3.0-4.0-4.0-4.0-4.0-4.0-4.0-3.0-3.0-2.0-3.0-3.0-4.0-2.0-2.0-1.0-2.0-3.0-1.0-5.0-3.0-1.0-1.00.0-1.0-1.0-2.0-2.00.0-2.0-1.0-1.0-1.0-1.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.1-0.1-0.1-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.0-0.2-0.1-0.0-0.00.0-0.0-0.0-0.1-0.10.0-0.1-0.0-0.0-0.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.1-0.1-0.1-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.0-0.2-0.1-0.0-0.00.0-0.0-0.0-0.1-0.10.0-0.1-0.0-0.0-0.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination dte:Gas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, dte:GasStorageAndPipelines


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-9.0-5.0-9.0-8.0-5.0-4.0-10.0-11.0-3.0-3.0-7.0-7.0-14.0-8.0-10.0-10.0-15.0-7.0-2.0-2.0-3.0-1.0-1.0-5.0-1.0-1.0-7.0-1.0-1.02.0-2.0-2.0-1.0-1.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.3-0.1-0.3-0.2-0.2-0.1-0.3-0.4-0.1-0.1-0.2-0.2-0.4-0.2-0.3-0.3-0.5-0.2-0.1-0.1-0.1-0.0-0.0-0.2-0.0-0.0-0.3-0.0-0.00.1-0.1-0.1-0.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.3-0.1-0.3-0.2-0.2-0.1-0.3-0.4-0.1-0.1-0.2-0.2-0.4-0.2-0.3-0.3-0.5-0.2-0.1-0.1-0.1-0.0-0.0-0.2-0.0-0.0-0.3-0.0-0.00.1-0.1-0.1-0.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination dte:GasStorageAndPipelines100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, dte:PowerAndIndustrialProjects


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-176.0-162.0-156.0-134.0-80.0-94.0-134.0-160.0-157.0-145.0-154.0-171.0-162.0-155.0-107.0-138.0-156.0-168.0-126.0-178.0-150.0-186.0-204.0-215.0-180.0-211.0-176.0-206.0-195.0-231.0-185.0-205.0-193.0-225.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-5.5-4.3-4.7-4.1-3.1-3.1-4.3-5.1-5.4-4.1-4.1-4.8-5.1-4.1-3.3-4.3-5.5-5.2-4.4-6.1-6.6-7.5-7.9-9.5-6.0-8.1-6.5-5.2-7.7-9.7-8.3-8.1-8.2-10.3
Percentage of RegulatedAndUnregulatedOperatingRevenue-5.5-4.3-4.7-4.1-3.1-3.1-4.3-5.1-5.4-4.1-4.1-4.8-5.1-4.1-3.3-4.3-5.5-5.2-4.4-6.1-6.6-7.5-7.9-9.5-6.0-8.1-6.5-5.2-7.7-9.7-8.3-8.1-8.2-10.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination dte:PowerAndIndustrialProjects100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, us-gaap:CorporateAndOther


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.0-1.00.0-1.00.0-1.00.0-1.00.0-1.00.0-1.00.0-1.00.0-1.00.0-1.00.00.0-2.0-2.0-1.00.0-1.0-1.01.0-2.01.08.07.08.09.011
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.00.0-0.1-0.1-0.00.0-0.0-0.00.0-0.10.00.30.30.30.40.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.0-0.00.00.0-0.1-0.1-0.00.0-0.0-0.00.0-0.10.00.30.30.30.40.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination us-gaap:CorporateAndOther0.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue us-gaap:ContractWithCustomerSalesChannel, us-gaap:StatementBusinessSegments

dte:Commercial, dte:Electric


Regulated
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
Value468451426498389426437515423421424495446429
Percentage of RegulatedAndUnregulatedOperatingRevenue14.511.913.015.215.114.113.916.514.612.011.313.914.111.4
Percentage of RegulatedAndUnregulatedOperatingRevenue14.511.913.015.215.114.113.916.514.612.011.313.914.111.4
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Commercial dte:Electric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:EndUserTransportation, dte:Gas


Regulated
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
Value4885643443776235428164344985
Percentage of RegulatedAndUnregulatedOperatingRevenue1.52.21.91.01.72.52.01.11.52.31.71.01.62.3
Percentage of RegulatedAndUnregulatedOperatingRevenue1.52.21.91.01.72.52.01.11.52.31.71.01.62.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:EndUserTransportation dte:Gas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:GasSales, dte:Gas


Regulated
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
Value171461316921693943168716347732989180457
Percentage of RegulatedAndUnregulatedOperatingRevenue5.312.29.62.86.513.010.02.85.613.68.82.55.712.2
Percentage of RegulatedAndUnregulatedOperatingRevenue5.312.29.62.86.513.010.02.85.613.68.82.55.712.2
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:GasSales dte:Gas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:Industrial, dte:Electric


Regulated
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
Value147159158157120156162175158163163173178176
Percentage of RegulatedAndUnregulatedOperatingRevenue4.64.24.84.84.65.25.15.65.54.64.34.95.64.7
Percentage of RegulatedAndUnregulatedOperatingRevenue4.64.24.84.84.65.25.15.65.54.64.34.95.64.7
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Industrial dte:Electric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:IntermediateTransportation, dte:Gas


Regulated
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
Value17262215162621151526209.01118
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.70.70.50.60.90.70.50.50.70.50.30.30.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.70.70.50.60.90.70.50.50.70.50.30.30.5
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:IntermediateTransportation dte:Gas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:Other, dte:Electric


Regulated
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
Value91825913813235973911598158806814
Percentage of RegulatedAndUnregulatedOperatingRevenue2.82.21.84.25.11.23.11.34.02.84.22.32.20.4
Percentage of RegulatedAndUnregulatedOperatingRevenue2.82.21.84.25.11.23.11.34.02.84.22.32.20.4
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Other dte:Electric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:Other, dte:Gas


Regulated
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
Value29404832234340182361543215-10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.91.11.51.00.91.41.30.60.81.71.40.90.5-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.91.11.51.00.91.41.30.60.81.71.40.90.5-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Other dte:Gas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:Residential, dte:Electric


Regulated
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
Value705672656900671599588791494553551773584586
Percentage of RegulatedAndUnregulatedOperatingRevenue21.817.820.027.426.019.818.725.417.115.714.721.818.515.6
Percentage of RegulatedAndUnregulatedOperatingRevenue21.817.820.027.426.019.818.725.417.115.714.721.818.515.6
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Residential dte:Electric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue us-gaap:StatementBusinessSegments

dte:Electric


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-06-302012-06-30
Value1411136412991693131212161284152011901235129615211276120512651290
Percentage of RegulatedAndUnregulatedOperatingRevenue43.736.139.551.650.840.240.848.741.235.134.642.840.432.156.964.1
Percentage of RegulatedAndUnregulatedOperatingRevenue43.736.139.551.650.840.240.848.741.235.134.642.840.432.156.964.1
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Electric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:EnergyTrading


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-06-302012-06-30
Value116714391149106174091310911105111313011563133211641498451239
Percentage of RegulatedAndUnregulatedOperatingRevenue36.138.134.932.328.630.234.735.438.537.041.737.536.839.920.311.9
Percentage of RegulatedAndUnregulatedOperatingRevenue36.138.134.932.328.630.234.735.438.537.041.737.536.839.920.311.9
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:EnergyTrading100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:Gas


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-06-302012-06-30
Value265612450173251540439155243645467164255550248214
Percentage of RegulatedAndUnregulatedOperatingRevenue8.216.213.75.39.717.913.95.08.418.412.54.68.114.711.110.6
Percentage of RegulatedAndUnregulatedOperatingRevenue8.216.213.75.39.717.913.95.08.418.412.54.68.114.711.110.6
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Gas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:GasStorageAndPipelines


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-06-302012-06-30
Value2081972082041721701381261211161221221221193127
Percentage of RegulatedAndUnregulatedOperatingRevenue6.45.26.36.26.75.64.44.04.23.33.33.43.93.21.41.3
Percentage of RegulatedAndUnregulatedOperatingRevenue6.45.26.36.26.75.64.44.04.23.33.33.43.93.21.41.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:GasStorageAndPipelines100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:PowerAndIndustrialProjects


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-06-302012-06-30
Value394366374324219307364406402388487612538567429449
Percentage of RegulatedAndUnregulatedOperatingRevenue12.29.711.49.98.510.211.613.013.911.013.017.217.015.119.322.3
Percentage of RegulatedAndUnregulatedOperatingRevenue12.29.711.49.98.510.211.613.013.911.013.017.217.015.119.322.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:PowerAndIndustrialProjects100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Regulated Operating Revenue

us-gaap:RegulatedOperatingRevenue

us-gaap:RegulatedOperatingRevenue


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value16551953172618441542173317011656141718641747166915141740172015731423171816501748143516641512152813571841
Percentage of RegulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue51.351.752.556.259.757.354.053.149.153.046.647.047.946.452.648.549.853.157.459.763.464.860.858.859.861.7

us-gaap:RegulatedOperatingRevenue dei:LegalEntity

dte:DTEElectric


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value14081360129516901309121212801519119012351296152112761205127514341218117512491608121511531165138511471203
Percentage of RegulatedOperatingRevenue85.169.675.091.684.969.975.291.784.066.374.291.184.369.374.191.285.668.475.792.084.769.377.190.684.565.3
Percentage of RegulatedAndUnregulatedOperatingRevenue43.636.039.451.550.740.140.748.741.235.134.642.840.432.139.044.242.736.343.554.953.744.946.853.350.640.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedOperatingRevenue us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dte:Electric


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value14081360129516901309121212791520119012351296152112761205127514341218117512491608121511531164138611481203
Percentage of RegulatedOperatingRevenue85.169.675.091.684.969.975.291.884.066.374.291.184.369.374.191.285.668.475.792.084.769.377.090.784.665.3
Percentage of RegulatedAndUnregulatedOperatingRevenue43.636.039.451.550.740.140.648.741.235.134.642.840.432.139.044.242.736.343.554.953.744.946.853.350.640.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments dte:Electric0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, dte:Gas


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value265612450173251540439155243645467164255550459152220557413160231520358153218647
Percentage of RegulatedOperatingRevenue16.031.326.19.416.331.225.89.417.134.626.79.816.831.626.79.715.532.425.09.216.131.223.710.016.135.1
Percentage of RegulatedAndUnregulatedOperatingRevenue8.216.213.75.39.717.913.95.08.418.412.54.68.114.714.04.77.717.214.45.510.220.314.45.99.621.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments dte:Gas0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Unregulated Operating Revenue

us-gaap:UnregulatedOperatingRevenue

us-gaap:UnregulatedOperatingRevenue


Unregulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1574182515621440104112891447146314711650200318811645201315511672143215181224118082790297510709111143
Percentage of UnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue48.748.347.543.840.342.746.046.950.947.053.453.052.153.647.451.550.246.942.640.336.635.239.241.240.238.3

us-gaap:UnregulatedOperatingRevenue us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Unregulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-216.0-201.0-117.0-172.0-112.0-124.0-99.0-195.0-181.0-172.0-122.0-201.0-198.0-186.0-83.0-169.0-194.0202-99.0-210.0-174.0-169.0-169.0-223.0-236.0-201.0
Percentage of UnregulatedOperatingRevenue-13.7-11.0-7.5-11.9-10.8-9.6-6.8-13.3-12.3-10.4-6.1-10.7-12.0-9.2-5.4-10.1-13.513.3-8.1-17.8-21.0-18.7-17.3-20.8-25.9-17.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-6.7-5.3-3.6-5.2-4.3-4.1-3.1-6.3-6.3-4.9-3.3-5.7-6.3-5.0-2.5-5.2-6.86.2-3.4-7.2-7.7-6.6-6.8-8.6-10.4-6.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination100.0100.060.9100.0100.0100.059.3100.0100.0100.065.6100.0100.0100.059.7100.0100.0-100.065.6100.0100.00.0-11.1100.0100.0100.0

us-gaap:UnregulatedOperatingRevenue us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dte:Electric


Unregulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value3.04.04.03.03.04.00.00.0
Percentage of UnregulatedOperatingRevenue0.20.20.30.20.30.30.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.10.10.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments dte:Electric0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, dte:EnergyTrading


Unregulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value116714391149106174091310911105111313011563133211641498106011749911052768782476549589635524711
Percentage of UnregulatedOperatingRevenue74.178.873.673.771.170.875.475.575.778.878.070.870.874.468.370.269.269.362.766.357.660.960.459.357.562.2
Percentage of RegulatedAndUnregulatedOperatingRevenue36.138.134.932.328.630.234.735.438.537.041.737.536.839.932.436.234.732.526.726.721.021.423.724.423.123.8
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments dte:EnergyTrading0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, dte:GasStorageAndPipelines


Unregulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value20819720820417217013812612111612212212211912011511310510363696768615757
Percentage of UnregulatedOperatingRevenue13.210.813.314.216.513.29.58.68.27.06.16.57.45.97.76.97.96.98.45.38.37.47.05.76.35.0
Percentage of RegulatedAndUnregulatedOperatingRevenue6.45.26.36.26.75.64.44.04.23.33.33.43.93.23.73.54.03.23.62.23.12.62.72.32.51.9
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments dte:GasStorageAndPipelines0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, dte:PowerAndIndustrialProjects


Unregulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value394366374324219307364406402388487612538567497537507548492524444446516585556567
Percentage of UnregulatedOperatingRevenue25.020.123.922.521.023.825.227.827.323.524.332.532.728.232.032.135.436.140.244.453.749.452.954.761.049.6
Percentage of RegulatedAndUnregulatedOperatingRevenue12.29.711.49.98.510.211.613.013.911.013.017.217.015.115.216.517.816.917.117.919.617.420.722.524.519.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments dte:PowerAndIndustrialProjects0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Unregulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.01.00.01.01.00.0-1.02.00.01.01.00.02.00.0-1.02.00.01.00.01.01.00.00.01.01.00.0
Percentage of UnregulatedOperatingRevenue0.00.10.00.10.10.0-0.10.10.00.10.00.00.10.0-0.10.10.00.10.00.10.10.00.00.10.10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.00.00.0-0.00.10.00.00.00.00.10.0-0.00.10.00.00.00.00.00.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value496364669945496444394373943232418823834536851364343628835292343303384133767330713258232149320412946228769285642873728654283502806827974263762618926161259352623125944259492633925909260752584626009247802457924489248962419524590
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

dte:DTEElectric


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value276732756326513261992589025166245882411123177229002252921941216312125521228210122074420515204892019019779195591955419423192061884918649
Percentage of Assets55.859.058.359.059.258.258.762.962.962.962.162.263.062.862.963.563.763.863.968.568.868.568.067.867.767.266.7
Percentage of Assets55.859.058.359.059.258.258.762.962.962.962.162.263.062.862.963.563.763.863.968.568.868.568.067.867.767.266.7
Percentage of Assets dte:DTEElectric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value169163211137
Percentage of Assets0.30.30.50.3
Percentage of Assets0.30.30.50.3
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted100.0100.0100.0100.0

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value1150114312091140
Percentage of Assets2.32.42.72.7
Percentage of Assets2.32.42.72.7
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted100.0100.0100.0100.0

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value9819809981003
Percentage of Assets2.02.12.22.4
Percentage of Assets2.02.12.22.4
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value-2073.0-2298.0-2309.0-1704.0-1513.0-1128.0-881.0-970.0-837.0
Percentage of Assets-4.6-5.5-6.4-5.0-4.7-3.9-3.1-3.7-3.2
Percentage of Assets-4.6-5.5-6.4-5.0-4.7-3.9-3.1-3.7-3.2
Percentage of Assets us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dte:Electric


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value265882461722501211632041719539187151750817755
Percentage of Assets58.458.862.062.763.768.066.967.567.4
Percentage of Assets58.458.862.062.763.768.066.967.567.4
Percentage of Assets us-gaap:OperatingSegments dte:Electric100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, dte:EnergyTrading


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value807798909725660590755623629
Percentage of Assets1.81.92.52.12.12.12.72.42.4
Percentage of Assets1.81.92.52.12.12.12.72.42.4
Percentage of Assets us-gaap:OperatingSegments dte:EnergyTrading100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, dte:Gas


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value633957175378507247294299428339384059
Percentage of Assets13.913.714.815.014.815.015.315.215.4
Percentage of Assets13.913.714.815.014.815.015.315.215.4
Percentage of Assets us-gaap:OperatingSegments dte:Gas100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, dte:GasStorageAndPipelines


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value506848323161259424171047884824668
Percentage of Assets11.111.58.77.77.53.63.23.22.5
Percentage of Assets11.111.58.77.77.53.63.23.22.5
Percentage of Assets us-gaap:OperatingSegments dte:GasStorageAndPipelines100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, dte:PowerAndIndustrialProjects


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value69653749559368386010091067991
Percentage of Assets1.51.31.41.82.13.03.64.13.8
Percentage of Assets1.51.31.41.82.13.03.64.13.8
Percentage of Assets us-gaap:OperatingSegments dte:PowerAndIndustrialProjects100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value807176796153532446483496320929453074
Percentage of Assets17.718.317.015.814.512.211.511.411.7
Percentage of Assets17.718.317.015.814.512.211.511.411.7
Percentage of Assets us-gaap:OperatingSegments us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value186174137
Percentage of Assets0.40.40.3
Percentage of Assets0.40.40.3
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted100.0100.0100.0

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value118711741140
Percentage of Assets2.72.72.7
Percentage of Assets2.72.72.7
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted100.0100.0100.0

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value100110001003
Percentage of Assets2.32.32.4
Percentage of Assets2.32.32.4
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted100.0100.0100.0

Liabilities

us-gaap:Liabilities us-gaap:ConsolidatedEntities

us-gaap:Liabilities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value93756420
Percentage of Liabilities100.0100.0100.0100.0
Percentage of Assets0.20.20.10.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted55.046.030.314.6

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value101827129
Percentage of Liabilities108.6109.3110.9145.0
Percentage of Assets0.20.20.20.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted8.87.25.92.5

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value8.07.07.09.0
Percentage of Liabilities8.69.310.945.0
Percentage of Assets0.00.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted0.80.70.70.9

us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Liabilitiesus-gaap:
Period End2020-09-302020-06-302019-12-31
Value443420
Percentage of Liabilities0.00.0100.0
Percentage of Assets0.10.10.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted23.719.514.6

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Liabilitiesus-gaap:
Period End2020-09-302020-06-302019-12-31
Value504129
Percentage of Liabilities0.00.0145.0
Percentage of Assets0.10.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted4.23.52.5

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Liabilitiesus-gaap:
Period End2020-09-302020-06-302019-12-31
Value6.07.09.0
Percentage of Liabilities0.00.045.0
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted0.60.70.9

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4963646699454964443943739432324188238345368513643436288352923433033841337673307132582321493204129462287692856428737286542835028068279742637626189261612593526231259442594926339259092607525846260092478024579244892489624195
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
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:LiabilitiesAndStockholdersEquity dei:LegalEntity

dte:DTEElectric


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value276732756326513261992589025166245882411123177229002252921941216312125521228210122074420515204892019019779195591955419423192061884918649
Percentage of LiabilitiesAndStockholdersEquity55.859.058.359.059.258.258.762.962.962.962.162.263.062.862.963.563.763.863.968.568.868.568.067.867.767.266.7
Percentage of Assets55.859.058.359.059.258.258.762.962.962.962.162.263.062.862.963.563.763.863.968.568.868.568.067.867.767.266.7
Percentage of Assets dte:DTEElectric100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
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
Value12378125521242512323117241182211672107401039610545102371020798449888951293739088919490119130877888878772881285398665832781698008811779217876755275967373738971427104700969706785679367226278
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.926.927.327.726.827.327.928.028.228.928.228.928.729.228.228.327.928.628.131.030.531.130.530.830.130.929.831.030.631.030.530.029.129.328.028.527.427.526.928.127.627.727.025.9

us-gaap:StockholdersEquity dei:LegalEntity

dte:DTEElectric


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value82238131807078687203715471957010682668166793652763386290626561346023599459955905572556955673567955615262519648544303
Percentage of StockholdersEquity66.464.864.963.861.460.561.665.365.764.666.463.964.463.665.965.466.365.266.564.765.264.164.764.465.160.762.461.358.4
Percentage of Assets16.617.417.717.716.516.517.218.318.518.718.718.518.518.618.618.518.518.618.720.019.919.919.719.819.618.718.618.716.3
Percentage of Assets dte:DTEElectric29.729.530.430.027.828.429.329.129.529.830.229.729.329.629.529.229.029.229.329.228.929.129.029.229.027.927.90.00.0

us-gaap:StockholdersEquity dei:LegalEntity, us-gaap:StatementEquityComponents

dte:DTEElectric, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value40614061406138253425342534253245324532453245292029202920292028202820282028202700270027002700270027002400240022101810
Percentage of StockholdersEquity32.832.432.731.029.229.029.330.231.230.831.728.629.729.530.730.131.030.731.329.630.830.430.830.631.627.728.827.924.5
Percentage of Assets8.28.78.98.67.87.98.28.58.88.98.98.38.58.68.68.58.78.88.89.29.49.59.49.49.58.68.68.56.9
Percentage of Assets dte:DTEElectric us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dte:DTEElectric, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value27762684262326572392234323842379219521852162222120321984195619261815178617871817163716071585159114731474143612741129
Percentage of StockholdersEquity22.421.421.121.620.419.820.422.221.120.721.121.820.620.120.620.520.019.419.819.918.618.118.118.117.317.017.216.115.3
Percentage of Assets5.65.75.86.05.55.45.76.26.06.06.06.35.95.95.85.85.65.65.66.25.75.65.55.65.25.35.14.94.3
Percentage of Assets dte:DTEElectric us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value64024376349838213497352630862985272628403260310328952957308128152631256727622595225823622575270026912788308727552721297328062549249627692915273030502951319629112771280031672877
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 Assets12.99.47.78.68.08.27.47.87.47.89.08.88.48.79.18.58.18.08.68.87.88.39.09.49.59.911.010.410.411.410.89.79.610.711.110.511.711.412.311.711.311.412.711.9

us-gaap:AssetsCurrent dei:LegalEntity

dte:DTEElectric


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value157222851527181518191381135715051400148915201587150913871446147413601292137716001381132213311519149814391481
Percentage of AssetsCurrent24.652.243.747.552.039.244.050.451.452.446.651.152.146.946.952.451.750.349.961.761.256.051.756.355.751.648.0
Percentage of Assets3.24.93.44.14.23.23.23.93.84.14.24.54.44.14.34.54.24.04.35.44.84.64.65.35.35.15.3
Percentage of Assets dte:DTEElectric5.78.35.86.97.05.55.56.26.06.56.77.27.06.56.87.06.66.36.77.97.06.86.87.87.87.67.9

us-gaap:AssetsCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assets
Period End2020-12-312019-12-31
Value351374
Percentage of AssetsCurrent10.012.1
Percentage of Assets0.80.9
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value344815685149455795529376625671846316466636282926632353767230994860759852714621865591855768466119765841241935286123
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.93.41.12.11.31.30.20.20.20.20.20.20.20.50.20.20.20.30.30.20.10.10.10.20.80.40.20.20.30.40.20.30.20.80.20.20.70.20.30.20.20.80.30.00.00.00.20.30.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

dte:DTEElectric


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value11878161893361312269.010.018128.01615129.01113161317152912354142829342730
Percentage of CashAndCashEquivalentsAtCarryingValue0.356.03.120.058.02.412.934.214.517.925.414.312.79.822.719.014.513.414.124.240.648.640.543.353.554.529.246.738.734.751.946.2
Percentage of Assets0.01.90.00.40.80.00.00.10.00.00.00.00.00.00.00.00.00.00.00.10.00.10.10.10.40.20.10.10.10.10.10.1
Percentage of Assets dte:DTEElectric0.03.20.10.71.30.10.00.10.00.00.10.10.00.10.10.10.00.10.10.10.10.10.10.10.60.30.10.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Cash
Period End2021-06-302021-03-312020-12-312019-12-31
Value22232011
Percentage of CashAndCashEquivalentsAtCarryingValue0.61.53.911.8
Percentage of Assets0.00.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted13.014.19.58.0

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Cash
Period End2021-06-302021-03-312020-12-312019-12-31
Value49445427
Percentage of CashAndCashEquivalentsAtCarryingValue1.42.810.529.0
Percentage of Assets0.10.10.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted4.33.84.52.4

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Cash
Period End2021-06-302021-03-312020-12-312019-12-31
Value27213416
Percentage of CashAndCashEquivalentsAtCarryingValue0.81.36.617.2
Percentage of Assets0.10.00.10.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted2.82.13.41.6

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Cash
Period End2020-09-302020-06-302019-12-31
Value221611
Percentage of CashAndCashEquivalentsAtCarryingValue2.32.811.8
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted11.89.28.0

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Cash
Period End2020-09-302020-06-302019-12-31
Value554227
Percentage of CashAndCashEquivalentsAtCarryingValue5.87.329.0
Percentage of Assets0.10.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted4.63.62.4

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Cash
Period End2020-09-302020-06-302019-12-31
Value332616
Percentage of CashAndCashEquivalentsAtCarryingValue3.54.517.2
Percentage of Assets0.10.10.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted3.32.61.6

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value3450157051696262167693766261761048618689868410211360
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.03.41.12.21.41.60.20.20.20.20.20.30.30.50.30.30.30.30.40.2

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

dte:DTEElectric


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value11878161893361312269.010.018128.0161513
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.355.93.119.654.11.912.934.214.516.423.711.59.38.616.911.5
Percentage of Assets0.01.90.00.40.80.00.00.10.00.00.00.00.00.00.00.0
Percentage of Assets dte:DTEElectric0.03.20.10.71.30.10.00.10.00.00.10.10.00.10.10.1

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value15501553166514191375148216421453143616831789169016901709175813951451140815221250118011851276124212511534150412571400181115421239131414601336116412391262131712061297140113931438
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.13.33.73.23.13.43.93.83.94.64.94.84.95.15.24.24.54.44.84.24.14.14.44.34.45.55.44.85.36.95.94.75.15.65.14.54.84.95.14.95.35.75.65.9

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity

dte:DTEElectric


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value780664763784763694729779715728750894849754791770742654728778694618657730667664688
Percentage of AccountsReceivableNetCurrent50.342.845.855.355.546.844.453.649.843.341.952.950.244.145.055.251.146.447.862.258.852.251.558.853.343.345.7
Percentage of Assets1.61.41.71.81.71.61.72.01.92.02.12.52.52.22.32.32.32.02.32.62.42.22.32.52.42.42.5
Percentage of Assets dte:DTEElectric2.82.42.93.02.92.83.03.23.13.23.34.13.93.53.73.73.63.23.63.93.53.23.43.83.53.53.7

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivablesByBillingStatusType

dte:DTEElectric, us-gaap:UnbilledRevenues


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value260263264290267237250
Percentage of AccountsReceivableNetCurrent15.616.014.816.517.518.616.6
Percentage of Assets0.60.60.70.90.80.80.9
Percentage of Assets dte:DTEElectric us-gaap:UnbilledRevenues0.00.00.00.00.00.00.0

us-gaap:AccountsReceivableNetCurrent us-gaap:AccountsNotesLoansAndFinancingReceivablesByBillingStatusType

us-gaap:UnbilledRevenues


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value94490010001000814620773815686
Percentage of AccountsReceivableNetCurrent56.754.855.956.953.548.651.452.951.3
Percentage of Assets2.12.12.83.02.52.22.83.12.6
Percentage of Assets us-gaap:UnbilledRevenues0.00.00.00.00.00.00.00.00.0

us-gaap:AccountsReceivableNetCurrent us-gaap:ConsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Accounts
Period End2021-06-302021-03-312020-12-312019-12-31
Value24222819
Percentage of AccountsReceivableNetCurrent1.51.41.71.2
Percentage of Assets0.00.00.10.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted14.213.513.313.9

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Accounts
Period End2021-06-302021-03-312020-12-312019-12-31
Value33313627
Percentage of AccountsReceivableNetCurrent2.12.02.21.6
Percentage of Assets0.10.10.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted2.92.73.02.4

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Accounts
Period End2021-06-302021-03-312020-12-312019-12-31
Value9.09.08.08.0
Percentage of AccountsReceivableNetCurrent0.60.60.50.5
Percentage of Assets0.00.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted0.90.90.80.8

us-gaap:AccountsReceivableNetCurrent us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Accounts
Period End2020-09-302020-06-302019-12-31
Value182419
Percentage of AccountsReceivableNetCurrent1.31.71.2
Percentage of Assets0.00.10.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted9.713.813.9

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Accounts
Period End2020-09-302020-06-302019-12-31
Value253227
Percentage of AccountsReceivableNetCurrent1.82.31.6
Percentage of Assets0.10.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted2.12.72.4

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Accounts
Period End2020-09-302020-06-302019-12-31
Value7.08.08.0
Percentage of AccountsReceivableNetCurrent0.50.60.5
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted0.70.80.8

Inventory Net

us-gaap:InventoryNet us-gaap:ConsolidatedEntities

us-gaap:InventoryNet

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Inventory
Period End2021-06-302021-03-312020-12-312019-12-31
Value465210774
Percentage of InventoryNet100.0100.0100.0100.0
Percentage of Assets0.10.10.20.2
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted27.231.950.754.0

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Inventory
Period End2021-06-302021-03-312020-12-312019-12-31
Value465210774
Percentage of InventoryNet100.0100.0100.0100.0
Percentage of Assets0.10.10.20.2
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted4.04.58.96.5

us-gaap:InventoryNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Inventory
Period End2020-09-302020-06-302019-12-31
Value1029874
Percentage of InventoryNet0.00.0100.0
Percentage of Assets0.20.20.2
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted54.856.354.0

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Inventory
Period End2020-09-302020-06-302019-12-31
Value1029874
Percentage of InventoryNet0.00.0100.0
Percentage of Assets0.20.20.2
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted8.68.36.5

Inventory Raw Materials And Supplies

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:InventoryRawMaterialsAndSupplies


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value469460381403436413386393431409405377362360380363390354356326332309323307308300292282277272265258234
Percentage of InventoryRawMaterialsAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.00.80.91.01.00.91.01.21.11.11.11.11.11.11.11.21.11.11.11.21.11.11.11.11.11.01.11.11.01.01.00.9

us-gaap:InventoryRawMaterialsAndSupplies dei:LegalEntity

dte:DTEElectric


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value319318292293293280280284283283279277276277275282292276271273264259251250245240231
Percentage of InventoryRawMaterialsAndSupplies68.069.176.672.767.267.872.572.365.769.268.973.576.276.972.477.774.978.076.183.779.583.877.781.479.580.079.1
Percentage of Assets0.60.70.60.70.70.60.70.70.80.80.80.80.80.80.80.90.90.90.80.90.90.90.90.90.90.90.8
Percentage of Assets dte:DTEElectric1.21.21.11.11.11.11.11.21.21.21.21.31.31.31.31.31.41.31.31.41.31.31.31.31.31.31.2

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value181267229295181268209136178231221272162221199270168222195127161234203346244312313305166178209248115158194244162187196249223233255201
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.60.50.70.40.60.50.40.50.60.60.80.50.70.60.80.50.70.60.40.60.80.71.20.91.11.11.20.60.70.80.90.40.60.70.90.60.70.81.00.91.01.00.8

us-gaap:OtherAssetsCurrent dei:LegalEntity

dte:DTEElectric


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value7612271257029783589278915701868146216631358316627672631
Percentage of OtherAssetsCurrent42.045.731.08.538.710.837.325.750.011.740.35.543.28.134.25.236.97.232.310.236.013.232.57.827.58.39.9
Percentage of Assets0.20.30.20.10.20.10.20.10.20.10.20.00.20.10.20.00.20.00.20.00.20.10.20.10.20.10.1
Percentage of Assets dte:DTEElectric0.30.40.30.10.30.10.30.10.40.10.40.10.30.10.30.10.30.10.30.10.30.20.30.10.30.10.2

Assets Noncurrent

us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:AssetsNoncurrent

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assets
Period End2020-12-312019-12-31
Value52355260
Percentage of AssetsNoncurrent100.0100.0
Percentage of Assets11.512.6
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3948638430379973725636684361463507233473328343221431810326003212231656314243092430599302873002928748283712827328121280142757927124265382616925836253842512324795243562393623631234422308122780225412231222123217292157420588
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets79.682.383.583.883.983.683.787.389.188.487.792.493.693.593.193.593.994.293.797.698.699.097.997.897.396.694.999.298.797.096.994.593.992.289.790.588.588.186.790.090.088.786.785.1

us-gaap:PropertyPlantAndEquipmentGross dei:LegalEntity

dte:DTEElectric


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value274622648126171255852521324950242792391723537231002274723683234102309822972226062243622276220942173721479214762139121045207182039519805
Percentage of PropertyPlantAndEquipmentGross69.568.968.968.768.769.069.271.571.771.771.572.672.973.073.173.173.373.573.675.675.776.076.175.175.175.274.6
Percentage of Assets55.356.757.557.657.657.758.062.463.963.462.767.168.268.368.068.468.969.369.073.874.775.274.473.473.172.770.8
Percentage of Assets dte:DTEElectric99.296.198.797.797.499.198.799.2101.6100.9101.0107.9108.2108.7108.2107.6108.2108.6107.8107.7108.6109.8109.4108.4107.9108.2106.2

dte:DTEGas


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value6434597855755174481044674257
Percentage of PropertyPlantAndEquipmentGross16.917.017.516.516.015.916.0
Percentage of Assets14.114.315.415.315.015.515.2
Percentage of Assets dte:DTEGas0.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentGross dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType

dte:DTEElectric, dte:ElectricGenerationEquipmentFossilAndOther


Property
Period End2020-12-312019-12-31
Value80317644
Percentage of PropertyPlantAndEquipmentGross21.121.8
Percentage of Assets17.718.3
Percentage of Assets dte:DTEElectric dte:ElectricGenerationEquipmentFossilAndOther0.00.0

dte:DTEElectric, dte:ElectricGenerationEquipmentNuclear


Property
Period End2020-12-312019-12-31
Value32953022
Percentage of PropertyPlantAndEquipmentGross8.78.6
Percentage of Assets7.27.2
Percentage of Assets dte:DTEElectric dte:ElectricGenerationEquipmentNuclear0.00.0

dte:DTEElectric, dte:ElectricGenerationEquipmentRenewables


Property
Period End2020-12-312019-12-31
Value18171362
Percentage of PropertyPlantAndEquipmentGross4.83.9
Percentage of Assets4.03.3
Percentage of Assets dte:DTEElectric dte:ElectricGenerationEquipmentRenewables0.00.0

dte:DTEElectric, dte:PropertyPlantandEquipmentOtherTypesUtility


Property
Period End2020-12-312019-12-312018-12-31
Value267425362567
Percentage of PropertyPlantAndEquipmentGross7.07.28.1
Percentage of Assets5.96.17.1
Percentage of Assets dte:DTEElectric dte:PropertyPlantandEquipmentOtherTypesUtility0.00.00.0

dte:DTEElectric, us-gaap:GasDistributionEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value10354971591538637813478167414
Percentage of PropertyPlantAndEquipmentGross27.227.728.827.527.127.827.9
Percentage of Assets22.823.225.225.625.427.226.5
Percentage of Assets dte:DTEElectric us-gaap:GasDistributionEquipment0.00.00.00.00.00.00.0

dte:DTEGas, dte:GasOtherEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1341124412041118925890863
Percentage of PropertyPlantAndEquipmentGross3.53.53.83.63.13.23.3
Percentage of Assets2.93.03.33.32.93.13.1
Percentage of Assets dte:DTEGas dte:GasOtherEquipment0.00.00.00.00.00.00.0

dte:DTEGas, dte:GasStorageEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value576570548533503453448
Percentage of PropertyPlantAndEquipmentGross1.51.61.71.71.71.61.7
Percentage of Assets1.31.41.51.61.61.61.6
Percentage of Assets dte:DTEGas dte:GasStorageEquipment0.00.00.00.00.00.00.0

dte:DTEGas, us-gaap:GasDistributionEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value4517416438233523338231242946
Percentage of PropertyPlantAndEquipmentGross11.911.912.011.211.311.111.1
Percentage of Assets9.99.910.510.410.610.910.5
Percentage of Assets dte:DTEGas us-gaap:GasDistributionEquipment0.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

dte:PropertyPlantandEquipmentGasStorageandPipelines


Property
Period End2020-12-312019-12-312018-12-31
Value398135242307
Percentage of PropertyPlantAndEquipmentGross10.510.07.3
Percentage of Assets8.88.46.4
Percentage of Assets dte:PropertyPlantandEquipmentGasStorageandPipelines0.00.00.0

dte:PropertyPlantandEquipmentOtherTypesNonUtility


Property
Period End2020-12-312019-12-312018-12-31
Value217183111
Percentage of PropertyPlantAndEquipmentGross0.60.50.3
Percentage of Assets0.50.40.3
Percentage of Assets dte:PropertyPlantandEquipmentOtherTypesNonUtility0.00.00.0

dte:PropertyPlantandEquipmentOtherTypesPowerandIndustrialProjects


Property
Period End2020-12-312019-12-312018-12-31
Value119411081070
Percentage of PropertyPlantAndEquipmentGross3.13.23.4
Percentage of Assets2.62.62.9
Percentage of Assets dte:PropertyPlantandEquipmentOtherTypesPowerandIndustrialProjects0.00.00.0

us-gaap:AssetsLeasedToOthers


Property
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value447445444443442
Percentage of PropertyPlantAndEquipmentGross1.21.31.31.31.4
Percentage of Assets1.01.11.21.21.2
Percentage of Assets us-gaap:AssetsLeasedToOthers0.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentOtherTypes


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value5392481534883278312522632476
Percentage of PropertyPlantAndEquipmentGross14.213.711.010.410.48.09.3
Percentage of Assets11.911.59.69.79.87.98.9
Percentage of Assets us-gaap:PropertyPlantAndEquipmentOtherTypes0.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10346101581002810097996099109755971510537103501016010988108831078610703106171053610421102991019810076101461008710147100039889971896709529939993239284916690708947903889298856879588908839867685828157
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.821.822.022.722.822.923.325.328.628.428.031.131.731.931.732.132.332.432.134.635.035.535.135.435.335.234.736.736.435.935.935.435.335.034.034.934.234.333.835.936.035.434.533.7

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment dei:LegalEntity

dte:DTEElectric


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value732471127050689568236810670666977574744273108156810180237984792178817812772176627577768176467586748574087216
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment70.870.070.368.368.568.768.768.971.971.971.974.274.474.474.674.674.875.075.075.175.275.775.874.874.874.974.3
Percentage of Assets14.815.215.515.515.615.816.017.520.620.420.123.123.623.723.624.024.224.324.126.026.326.926.626.526.426.425.8
Percentage of Assets dte:DTEElectric26.525.826.626.326.427.127.327.832.732.532.437.237.537.737.637.738.038.137.737.938.339.339.139.139.039.338.7

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AssetsLeasedToOthers


Accumulated
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value197173166160154
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment2.01.81.71.51.5
Percentage of Assets0.40.40.40.40.4
Percentage of Assets us-gaap:AssetsLeasedToOthers0.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2914028272279692715926724262362531723758222972186421650216122123920870207212030720063198661973018550182951812718034178671757617235168201649916307159851580015511151901486614684144041415213924137461342213284130531299212431
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets58.760.561.561.161.160.760.462.060.560.059.761.261.961.761.461.461.661.861.663.063.663.562.862.462.061.460.162.662.361.160.959.158.557.355.855.654.353.952.954.254.053.352.251.4

us-gaap:PropertyPlantAndEquipmentNet dei:LegalEntity

dte:DTEElectric


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value201381936919121186901839018140175731722015963156581543715527153091507514988146851455514464143731407513902137951374513459132331298712589
Percentage of PropertyPlantAndEquipmentNet69.168.568.468.868.869.169.472.571.671.671.371.872.172.272.372.372.572.872.875.976.076.176.275.375.375.474.8
Percentage of Assets40.641.542.042.142.042.042.044.943.343.042.544.044.644.544.444.444.745.044.947.848.348.347.847.046.746.345.0
Percentage of Assets dte:DTEElectric72.870.372.171.371.072.171.571.468.968.468.570.870.870.970.669.970.270.570.169.770.370.570.369.368.968.967.5

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Property
Period End2021-06-302021-03-312020-12-312019-12-31
Value17192333
Percentage of PropertyPlantAndEquipmentNet0.10.10.10.1
Percentage of Assets0.00.00.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted10.111.710.924.1

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Property
Period End2021-06-302021-03-312020-12-312019-12-31
Value415419425443
Percentage of PropertyPlantAndEquipmentNet1.41.51.51.7
Percentage of Assets0.80.90.91.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted36.136.735.238.9

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Property
Period End2021-06-302021-03-312020-12-312019-12-31
Value398400402410
Percentage of PropertyPlantAndEquipmentNet1.41.41.41.6
Percentage of Assets0.80.90.91.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted40.640.840.340.9

us-gaap:PropertyPlantAndEquipmentNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Property
Period End2020-09-302020-06-302019-12-31
Value252833
Percentage of PropertyPlantAndEquipmentNet0.10.10.1
Percentage of Assets0.10.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted13.416.124.1

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Property
Period End2020-09-302020-06-302019-12-31
Value429434443
Percentage of PropertyPlantAndEquipmentNet1.61.61.7
Percentage of Assets1.01.01.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted36.137.038.9

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Property
Period End2020-09-302020-06-302019-12-31
Value404406410
Percentage of PropertyPlantAndEquipmentNet1.51.51.6
Percentage of Assets0.90.91.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted40.440.640.9

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value40703977391937153714353437883669356635193368343630412852279726342550244222732226210119791936188319211911186918471841179117941723165416511591156615181536146214201501148214571415
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.28.58.68.48.58.29.09.69.79.79.39.78.98.48.38.07.87.67.17.67.36.96.76.66.86.86.77.07.06.86.96.66.46.46.06.05.85.95.65.76.16.15.95.8

us-gaap:LongTermInvestments dei:LegalEntity

dte:DTEElectric


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value206419681897170216401474169916131597154414121565151915171528147414271398135613541306128012711233130112981413
Percentage of LongTermInvestments50.749.548.445.844.241.744.944.044.843.941.945.550.053.254.656.056.057.259.760.862.264.765.765.567.767.975.6
Percentage of Assets4.24.24.23.83.73.44.14.24.34.23.94.44.44.54.54.54.44.34.24.64.54.54.44.34.64.65.1
Percentage of Assets dte:DTEElectric7.57.17.26.56.35.96.96.76.96.76.37.17.07.17.27.06.96.86.66.76.66.56.56.36.86.97.6

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value246624662466246524652466246422932293229322932293229322932293229322912292228620182018201820182018201820182018201820182018201820182018201820182020202020202020202020202020202020242037
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.05.35.45.55.65.75.96.06.26.36.36.56.76.86.86.97.07.17.16.87.07.17.07.07.17.27.27.77.77.77.87.77.87.87.77.87.77.87.88.28.28.28.18.48.3

us-gaap:Goodwill us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

dte:M5LouisianaGatheringLLC, dte:GasStorageAndPipelines


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-04
Value172172173171
Percentage of Goodwill7.07.07.00.0
Percentage of Assets0.40.40.40.0
Percentage of Assets dte:M5LouisianaGatheringLLC dte:GasStorageAndPipelines0.00.00.00.0

us-gaap:Goodwill us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, dte:Gas


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value743743743743743743743743745
Percentage of Goodwill30.130.232.432.432.536.836.836.836.9
Percentage of Assets1.61.82.02.22.32.62.72.92.8
Percentage of Assets us-gaap:OperatingSegments dte:Gas11.713.013.814.615.717.317.318.918.4

us-gaap:OperatingSegments, dte:GasStorageAndPipelines


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value47247029929929224242422
Percentage of Goodwill19.119.113.013.012.81.21.21.21.1
Percentage of Assets1.01.10.80.90.90.10.10.10.1
Percentage of Assets us-gaap:OperatingSegments dte:GasStorageAndPipelines9.39.79.511.512.12.32.72.93.3

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill dei:LegalEntity

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

dte:DTEElectric


Indefinite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value111521253139
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.10.10.10.1
Percentage of Assets dte:DTEElectric0.00.10.10.10.20.2

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill dei:LegalEntity, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

dte:DTEElectric, dte:RenewableEnergyCredits


Indefinite
Period End2020-12-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-31
Value8.0152020243038
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill72.7100.00.095.296.096.897.4
Percentage of Assets0.00.00.10.10.10.10.1
Percentage of Assets dte:DTEElectric dte:RenewableEnergyCredits0.00.00.00.00.00.00.0

dte:DTEElectric, dte:ZoneResourceCredits


Indefinite
Period End2020-12-31
Value3.0
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill27.3
Percentage of Assets0.0
Percentage of Assets dte:DTEElectric dte:ZoneResourceCredits0.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value229623182339235823802402239394084986784294100101110111120125131134136138135135676770737471696754
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.65.05.15.35.45.65.72.52.32.62.60.30.30.40.40.40.50.50.50.50.50.50.50.50.30.30.30.30.30.30.30.30.2

us-gaap:IntangibleAssetsNetExcludingGoodwill dei:LegalEntity

dte:DTEElectric


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-312015-12-31
Value3.06.011111519152121253134
Percentage of IntangibleAssetsNetExcludingGoodwill0.10.30.50.50.60.80.62.22.52.93.736.2
Percentage of Assets0.00.00.00.00.00.00.00.10.10.10.10.1
Percentage of Assets dte:DTEElectric0.00.00.00.00.10.10.10.10.10.10.20.2

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value2328237891983784682886486286786788389083784291979089899010010210811211812212215215415585858586
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.15.72.42.32.32.32.42.52.62.62.72.72.62.60.30.30.30.30.30.30.40.40.40.40.50.50.50.60.60.60.30.30.30.3

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:ConsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value520524527542
Percentage of FiniteLivedIntangibleAssetsNet0.00.022.622.8
Percentage of Assets1.01.11.21.3
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted45.245.843.647.5

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value520524527542
Percentage of FiniteLivedIntangibleAssetsNet0.00.022.622.8
Percentage of Assets1.01.11.21.3
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted53.053.552.854.0

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerContracts


Finite
Period End2020-12-312019-12-312019-09-302018-12-31
Value19719219893
Percentage of FiniteLivedIntangibleAssetsNet8.58.121.511.2
Percentage of Assets0.40.50.50.3
Percentage of Assets us-gaap:CustomerContracts0.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312019-09-302018-12-312017-12-31
Value21312186721735746
Percentage of FiniteLivedIntangibleAssetsNet91.591.978.588.886.0
Percentage of Assets4.75.21.92.02.2
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.0

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Finite
Period End2020-09-302020-06-302019-12-31
Value531535542
Percentage of FiniteLivedIntangibleAssetsNet0.00.022.8
Percentage of Assets1.21.21.3
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted44.745.647.5

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Finite
Period End2020-09-302020-06-302019-12-31
Value531535542
Percentage of FiniteLivedIntangibleAssetsNet0.00.022.8
Percentage of Assets1.21.21.3
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted53.053.554.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value138145152157161164169145142138
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.40.40.40.40.40.40.4

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

dte:DTEElectric


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value70737578818487646770
Percentage of OperatingLeaseRightOfUseAsset50.750.349.349.750.351.251.544.147.250.7
Percentage of Assets0.10.20.20.20.20.20.20.20.20.2
Percentage of Assets dte:DTEElectric0.30.30.30.30.30.30.40.30.30.3

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1002410074101109744980499369691195185158160152148159161175168168170175159157254248248245259243220193198198199196197190189188199192195204206185
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.221.622.221.922.423.023.10.50.50.40.40.40.40.50.50.50.50.50.50.60.60.50.90.90.90.90.90.90.80.70.80.80.80.80.70.70.70.70.80.80.80.80.80.8

us-gaap:OtherAssetsNoncurrent dei:LegalEntity

dte:DTEElectric


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value3899394139683992404141713959159152135121117115123123124125125125133121119180171169174182
Percentage of OtherAssetsNoncurrent38.939.139.241.041.242.040.981.582.285.475.677.077.777.476.470.974.474.473.576.076.175.870.969.068.171.070.3
Percentage of Assets7.98.48.79.09.29.69.50.40.40.40.30.30.30.40.40.40.40.40.40.50.40.40.60.60.60.60.7
Percentage of Assets dte:DTEElectric14.114.315.015.215.616.616.10.70.70.60.50.50.50.60.60.60.60.60.60.70.60.60.90.90.90.91.0

Other Assets

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

us-gaap:OtherAssets

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Other
Period End2021-03-312020-12-31
Value4733
Percentage of OtherAssets100.0100.0
Percentage of Assets0.10.1
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted28.815.6

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Other
Period End2021-03-312020-12-312019-12-31
Value48352.0
Percentage of OtherAssets102.1106.10.0
Percentage of Assets0.10.10.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted4.22.90.2

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Other
Period End2021-03-312020-12-312019-12-31
Value1.02.02.0
Percentage of OtherAssets2.16.10.0
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted0.10.20.2

us-gaap:OtherAssets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Other
Period End2020-09-302020-06-302019-12-31
Value198.00.0
Percentage of OtherAssets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted10.24.60.0

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Other
Period End2020-09-302020-06-302019-12-31
Value208.02.0
Percentage of OtherAssets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted1.70.70.2

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Other
Period End2020-09-302020-06-302019-12-31
Value1.00.02.0
Percentage of OtherAssets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted0.10.00.2

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Accounts
Period End2021-03-312020-12-312019-12-31
Value192213
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted11.710.49.5

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Accounts
Period End2021-03-312020-12-312019-12-31
Value192215
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0115.4
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted1.71.81.3

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted


Accounts
Period End2020-09-302020-06-302019-12-31
Value191313
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent0.00.0100.0
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryOtherRestricted10.27.59.5

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Accounts
Period End2020-09-302020-06-302019-12-31
Value191315
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent0.00.0115.4
Percentage of Assets0.00.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted1.61.11.3

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value117395510299641025102810761033105198113291160105992011719949889101079813745649809835848825973873946945962866808711848724728690782708733631729723
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.02.32.22.32.42.62.72.92.73.73.33.12.73.53.03.02.83.42.82.62.32.82.93.02.93.53.33.63.63.73.33.12.73.22.82.82.73.02.93.02.62.93.0

us-gaap:AccountsPayableCurrent us-gaap:ConsolidatedEntities

dte:VariableInterestEntityPrimaryBeneficiaryRestricted


Accounts
Period End2021-06-302020-12-31
Value2322
Percentage of AccountsPayableCurrent2.02.1
Percentage of Assets0.00.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiaryRestricted2.01.8

dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted


Accounts
Period End2021-06-30
Value1.0
Percentage of AccountsPayableCurrent0.1
Percentage of Assets0.0
Percentage of Assets dte:VariableInterestEntityPrimaryBeneficiarySGGRestricted0.1

Debt Current

us-gaap:DebtCurrent dei:LegalEntity

us-gaap:DebtCurrent

dte:DTEElectric


Debt
Period End2020-12-312019-12-312018-12-312016-12-312015-12-312014-12-31
Value4626320.00.015110.0
Percentage of DebtCurrent100.0100.00.00.0100.0100.0
Percentage of Assets1.01.50.00.00.50.0
Percentage of Assets dte:DTEElectric1.72.60.00.00.80.1

us-gaap:DebtCurrent us-gaap:LongtermDebtType

dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value46268214951049.0465
Percentage of DebtCurrent100.0107.90.00.00.0307.9
Percentage of Assets1.01.64.10.30.01.6
Percentage of Assets dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebt0.00.00.00.00.00.0

Dividends Payable Current

us-gaap:DividendsPayableCurrent

us-gaap:DividendsPayableCurrent


Dividends
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
Value3702102101963901951951733461731721613211601581482961481481382691311311312551241221222381161161162291081071072071009999199959588
Percentage of DividendsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.40.50.40.90.50.50.50.90.50.50.50.90.50.50.40.90.50.50.50.90.50.50.50.90.40.40.50.90.40.40.40.90.40.40.40.80.40.40.40.80.40.40.4

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value37372595269134174196397239973865365436474438211724992541281225982747183424371969188322092528227322321839257728052819356931893008296224762768230926352530262821002246255527492645
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.55.65.97.79.69.29.510.19.910.012.26.07.37.58.37.98.45.77.66.76.57.78.87.97.96.69.210.610.813.612.311.511.49.510.58.910.19.810.18.59.110.411.010.9

us-gaap:LiabilitiesCurrent dei:LegalEntity

dte:DTEElectric


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value14681260138014971702137118431575103881610778768201104106110911371962933745836101510929317237261037
Percentage of LiabilitiesCurrent39.348.651.343.840.634.546.140.828.422.424.341.432.843.437.742.049.952.538.337.844.445.943.241.032.439.540.2
Percentage of Assets3.02.73.03.43.93.24.44.12.82.23.02.52.43.33.13.34.23.02.92.52.93.63.83.22.62.63.7
Percentage of Assets dte:DTEElectric5.34.65.25.76.65.47.56.54.53.64.84.03.85.25.05.26.64.74.63.74.25.25.64.83.83.95.6

us-gaap:LiabilitiesCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilities
Period End2020-12-312019-12-31
Value319414
Percentage of LiabilitiesCurrent11.910.4
Percentage of Assets0.71.0
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value32333332323233343433
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.1

us-gaap:OperatingLeaseLiabilityCurrent dei:LegalEntity

dte:DTEElectric


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11111112121212131314
Percentage of OperatingLeaseLiabilityCurrent34.433.333.337.537.537.536.438.238.242.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets dte:DTEElectric0.00.00.00.00.00.00.00.10.10.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value577521647509516437504419405423509462408411525429391417498355308299429412375347494475473489495457570473538479508424549536517465597502
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.11.41.11.21.01.21.11.11.21.41.31.21.21.61.31.21.31.61.21.11.01.51.41.31.21.81.81.81.91.91.72.21.82.01.81.91.62.12.22.11.92.42.1

us-gaap:OtherLiabilitiesCurrent dei:LegalEntity

dte:DTEElectric


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value1761692191671681501551541381011391437513314514613314914694741221381598974103
Percentage of OtherLiabilitiesCurrent30.532.433.832.832.634.330.836.834.123.927.331.018.432.427.634.034.035.729.326.524.040.832.238.623.721.320.9
Percentage of Assets0.40.40.50.40.40.30.40.40.40.30.40.40.20.40.40.40.40.50.50.30.30.40.50.60.30.30.4
Percentage of Assets dte:DTEElectric0.60.60.80.60.60.60.60.60.60.40.60.70.30.60.70.70.60.70.70.50.40.60.70.80.50.40.6

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesNoncurrent

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilities
Period End2020-12-312019-12-31
Value686698
Percentage of LiabilitiesNoncurrent100.0100.0
Percentage of Assets1.51.7
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value19603167551374612407113729300862081718030797980947729767180467813773580417600770077007800790080008000
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.140.037.936.735.532.430.831.030.730.531.229.529.631.029.729.930.829.429.631.131.732.332.133.1

us-gaap:LongTermDebt dei:LegalEntity

dte:DTEElectric


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value830872406590606559255635
Percentage of LongTermDebt42.443.247.948.952.160.6
Percentage of Assets18.317.318.218.018.519.6
Percentage of Assets dte:DTEElectric31.329.429.328.628.928.8

us-gaap:LongTermDebt us-gaap:LongtermDebtType

us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1175114611451145756465
Percentage of LongTermDebt6.06.88.39.26.65.0
Percentage of Assets2.62.73.23.42.41.6
Percentage of Assets us-gaap:JuniorSubordinatedDebt0.00.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent dei:LegalEntity

us-gaap:LongTermDebtNoncurrent

dte:DTEElectric


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value851487647774777379517638654868477178717865386537653760186017601655805879587858775735543854735492563456345144
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.218.817.117.518.217.715.617.919.519.718.018.519.017.817.818.217.118.318.319.919.919.019.019.219.920.118.4
Percentage of Assets dte:DTEElectric30.831.829.329.730.730.426.628.431.031.329.029.830.228.328.328.626.928.728.729.129.027.828.028.329.329.927.6

us-gaap:LongTermDebtNoncurrent dei:LegalEntity, us-gaap:LongtermDebtType

dte:DTEElectric, dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebt


Long
Period End2020-12-312019-12-312018-12-31
Value777465486538
Percentage of LongTermDebtNoncurrent100.0100.0100.0
Percentage of Assets17.115.618.0
Percentage of Assets dte:DTEElectric dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebt0.00.00.0

us-gaap:LongTermDebtNoncurrent us-gaap:LongtermDebtType

dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value17802147781098211039105068280
Percentage of LongTermDebtNoncurrent229.0225.7168.0183.5178.7151.3
Percentage of Assets39.135.330.332.732.828.8
Percentage of Assets dte:SecuredDebtUnsecuredDebtMortgageNotesandOtherDebt0.00.00.00.00.00.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value218911999319001182191734117026159351385813569127761213413620127051218512185117951135811758112699478934387588835885688358838834379097813692372146846680672187014712072127093718774977507701570897370
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets44.142.841.841.039.639.438.036.136.835.133.438.637.036.036.135.734.936.635.232.232.530.730.730.931.231.529.830.029.826.527.826.126.227.826.627.527.727.427.630.330.528.628.530.5

us-gaap:LongTermDebtAndCapitalLeaseObligations dei:LegalEntity

dte:DTEElectric


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value852487757787778779537641655268517183718465456537653760186018601755825882588558845747545054885500564356445144
Percentage of LongTermDebtAndCapitalLeaseObligations38.943.941.042.745.944.941.149.452.956.253.948.051.549.449.451.049.150.052.262.161.562.262.162.163.963.961.7
Percentage of Assets17.218.817.117.518.217.715.617.919.519.718.018.519.017.817.818.217.118.318.420.020.019.119.119.219.920.118.4
Percentage of Assets dte:DTEElectric30.831.829.429.730.730.426.628.431.031.429.129.830.228.328.328.626.928.728.729.129.127.928.128.329.429.927.6

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value295228942822273626502553231522572063202919751974193619361888439642934162
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.96.26.26.26.15.95.55.95.65.65.45.65.65.75.613.313.213.0

us-gaap:DeferredIncomeTaxLiabilitiesNet dei:LegalEntity

dte:DTEElectric


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value260225602525248924222382235523112294227622462210214621272088398538723793
Percentage of DeferredIncomeTaxLiabilitiesNet88.188.589.591.091.493.3101.7102.4111.2112.2113.7112.0110.8109.9110.690.790.291.1
Percentage of Assets5.25.55.55.65.55.55.66.06.26.26.26.36.36.36.212.011.911.8
Percentage of Assets dte:DTEElectric9.49.39.59.59.49.59.69.69.99.910.010.19.910.09.819.018.718.5

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity, us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

dte:DTEElectric, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value384367278311269
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0
Percentage of Assets0.80.90.80.90.8
Percentage of Assets dte:DTEElectric us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value4070.00.06136
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent106.00.00.019.613.4
Percentage of Assets0.90.00.00.20.1
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value7978088379241152
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent207.6220.2301.1297.1428.3
Percentage of Assets1.81.92.32.73.6
Percentage of Assets us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value16116216416516816616416417347548048347447547848048349448819212323211813151718203334353638424243443939444538
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.40.40.40.40.40.40.51.31.31.41.41.41.41.51.51.51.50.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.20.20.20.20.20.20.20.20.2

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11469113971121510315103101024610114337333334364285288293323325339335349243226205207219254247281278269266297290283281306302297295331258250246275328
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.124.424.723.223.623.724.10.90.90.91.00.80.80.91.01.01.01.01.10.80.80.70.70.80.90.91.01.11.01.01.11.11.11.11.21.21.11.11.31.01.01.01.11.4

us-gaap:OtherLiabilitiesNoncurrent dei:LegalEntity

dte:DTEElectric


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value94589397927690479032900089988286858876767472758079817568696674114108105
Percentage of OtherLiabilitiesNoncurrent82.582.582.787.787.687.889.024.325.825.424.226.726.425.322.323.123.623.623.230.930.133.731.933.844.943.737.4
Percentage of Assets19.120.120.420.420.620.821.50.20.20.20.20.20.20.20.20.20.20.20.30.30.20.20.20.30.40.40.4
Percentage of Assets dte:DTEElectric34.234.135.034.534.935.836.60.30.40.40.40.30.40.30.30.40.40.40.40.40.30.40.30.40.60.60.6

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9810511111612112412710510298
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.30.30.30.30.30.30.3

us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity

dte:DTEElectric


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value51545659626567454850
Percentage of OperatingLeaseLiabilityNoncurrent52.051.450.550.951.252.452.842.947.151.0
Percentage of Assets0.10.10.10.10.10.20.20.10.10.1
Percentage of Assets dte:DTEElectric0.20.20.20.20.20.30.30.20.20.2

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value3130353230
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.1

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo dei:LegalEntity

dte:DTEElectric


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1213131212
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo38.743.337.137.540.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets dte:DTEElectric0.00.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value2226262322
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.10.10.1

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree dei:LegalEntity

dte:DTEElectric


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value10.012111111
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree45.546.242.347.850.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets dte:DTEElectric0.00.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1320191616
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour dei:LegalEntity

dte:DTEElectric


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value8.010.07.07.07.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour61.550.036.843.843.8
Percentage of Assets0.00.00.00.00.0
Percentage of Assets dte:DTEElectric0.00.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value8.012161313
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive dei:LegalEntity

dte:DTEElectric


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value6.08.06.06.06.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive75.066.737.546.246.2
Percentage of Assets0.00.00.00.00.0
Percentage of Assets dte:DTEElectric0.00.00.00.00.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value6167626150
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0100.0
Percentage of Assets0.10.20.20.20.1

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive dei:LegalEntity

dte:DTEElectric


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value3238303030
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive52.556.748.449.260.0
Percentage of Assets0.10.10.10.10.1
Percentage of Assets dte:DTEElectric0.10.20.10.10.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value144160138136131
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.40.40.4

us-gaap:OperatingLeaseLiability dei:LegalEntity

dte:DTEElectric


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value6779586164
Percentage of OperatingLeaseLiability46.549.442.044.948.9
Percentage of Assets0.10.20.20.20.2
Percentage of Assets dte:DTEElectric0.30.30.20.30.3

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value172193168166159
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.40.50.4

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue dei:LegalEntity

dte:DTEElectric


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value8195717578
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue47.149.242.345.249.1
Percentage of Assets0.20.20.20.20.2
Percentage of Assets dte:DTEElectric0.30.40.30.30.3

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value2833303028
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.1

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount dei:LegalEntity

dte:DTEElectric


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1416131414
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount50.048.543.346.750.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets dte:DTEElectric0.10.10.10.10.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
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
Value12378125521242512323117241182211672107401039610545102371020798449888951293739088919490119130877888878772881285398665832781698008811779217876755275967373738971427104700969706785679367226278
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.926.927.327.726.827.327.928.028.228.928.228.928.729.228.228.327.928.628.131.030.531.130.530.830.130.929.831.030.631.030.530.029.129.328.028.527.427.526.928.127.627.727.025.9

us-gaap:StockholdersEquity dei:LegalEntity

dte:DTEElectric


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value82238131807078687203715471957010682668166793652763386290626561346023599459955905572556955673567955615262519648544303
Percentage of StockholdersEquity66.464.864.963.861.460.561.665.365.764.666.463.964.463.665.965.466.365.266.564.765.264.164.764.465.160.762.461.358.4
Percentage of Assets16.617.417.717.716.516.517.218.318.518.718.718.518.518.618.618.518.518.618.720.019.919.919.719.819.618.718.618.716.3
Percentage of Assets dte:DTEElectric29.729.530.430.027.828.429.329.129.529.830.229.729.329.629.529.229.029.229.329.228.929.129.029.229.027.927.90.00.0

us-gaap:StockholdersEquity dei:LegalEntity, us-gaap:StatementEquityComponents

dte:DTEElectric, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value40614061406138253425342534253245324532453245292029202920292028202820282028202700270027002700270027002400240022101810
Percentage of StockholdersEquity32.832.432.731.029.229.029.330.231.230.831.728.629.729.530.730.131.030.731.329.630.830.430.830.631.627.728.827.924.5
Percentage of Assets8.28.78.98.67.87.98.28.58.88.98.98.38.58.68.68.58.78.88.89.29.49.59.49.49.58.68.68.56.9
Percentage of Assets dte:DTEElectric us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dte:DTEElectric, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value27762684262326572392234323842379219521852162222120321984195619261815178617871817163716071585159114731474143612741129
Percentage of StockholdersEquity22.421.421.121.620.419.820.422.221.120.721.121.820.620.120.620.520.019.419.819.918.618.118.118.117.317.017.216.115.3
Percentage of Assets5.65.75.86.05.55.45.76.26.06.06.06.35.95.95.85.85.65.65.66.25.75.65.55.65.25.35.14.94.3
Percentage of Assets dte:DTEElectric us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value125391271412589124881189211988118361090410569110201071710690103181036399909853957196889499914987998910879588338557867883428186802681377954791075877632741174317184714770537009682468376767631660385901
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.327.227.728.127.227.728.328.428.730.229.530.330.130.629.629.829.430.129.631.130.631.230.630.830.230.929.831.030.631.130.730.229.229.428.128.727.627.727.128.327.827.927.226.124.60.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value-109.0-117.0-102.0-110.0-120.0-131.0-144.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.9-1.0-1.0-1.1-1.3-1.5-1.7
Percentage of Assets-0.2-0.3-0.3-0.3-0.4-0.5-0.5
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.0

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value-5.0-6.0-7.0-5.0-6.0-6.0-2.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.0-0.1-0.1-0.1-0.1-0.1-0.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Stockholders
Period End2020-12-312019-12-31
Value-23.0-25.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.2-0.2
Percentage of Assets-0.1-0.1
Percentage of Assets us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-132.0-134.0-137.0-138.0-141.0-145.0-148.0-146.0-146.0-143.0-120.0-118.0-121.0-123.0-120.0-120.0-125.0-129.0-133.0-138.0-142.0-140.0-145.0-150.0-151.0-155.0-155.0-133.0-134.0-137.0-136.0-151.0-155.0-156.0-158.0-147.0-151.0-153.0-158.0-146.0-146.0-148.0-149.0-147.0-165.0-113.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.1-1.1-1.1-1.1-1.2-1.2-1.3-1.3-1.4-1.3-1.1-1.1-1.2-1.2-1.2-1.2-1.3-1.3-1.4-1.5-1.6-1.6-1.6-1.7-1.8-1.8-1.9-1.6-1.7-1.7-1.7-1.9-2.0-2.0-2.1-2.0-2.1-2.1-2.2-2.1-2.1-2.2-2.2-2.3-2.7-1.9
Percentage of Assets-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.3-0.3-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.5-0.5-0.5-0.5-0.5-0.5-0.6-0.6-0.5-0.5-0.5-0.5-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.70.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value-137.0-148.0-120.0-120.0-133.0-145.0-155.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.1-1.3-1.1-1.2-1.4-1.6-1.9
Percentage of Assets-0.3-0.4-0.3-0.4-0.4-0.5-0.6
Percentage of Assets us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value5361534454065369524752355233437043444324424542324205416339893978396839584030413741294118412341174110409339043900389638943907388537623683358735673549345334173418341534283440325731753176
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest42.842.042.943.044.143.744.240.141.139.239.639.640.840.239.940.441.540.942.445.246.946.246.946.648.047.246.847.648.547.949.149.149.648.348.448.049.448.348.448.850.050.150.851.652.653.8
Percentage of Assets10.811.411.912.112.012.112.511.411.811.911.712.012.212.311.812.012.212.312.614.014.414.414.314.414.514.614.014.814.914.915.114.814.514.213.613.813.613.413.113.813.914.013.813.512.90.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value161162164165168166164164173475480483474475478480483494488192123232118131517182033343536384242434439394445384348
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.31.31.31.31.41.41.41.51.64.34.54.54.64.64.84.95.05.15.10.20.20.30.30.20.20.10.20.20.20.20.40.40.50.50.50.60.60.60.60.60.60.60.70.60.70.8
Percentage of Assets0.30.30.40.40.40.40.40.40.51.31.31.41.41.41.41.51.51.51.50.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.20.20.20.20.20.20.20.20.20.20.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value7149734271567092661867326587651661986364611260935760584856435515524553655114513147914909479448454580472745784402424643604150414239454069394439693744380437503698351635133431316829852790
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest57.057.756.856.855.756.255.759.858.657.757.057.055.856.456.556.054.855.453.856.154.455.154.554.953.554.554.953.852.953.652.252.452.053.353.253.452.153.253.252.851.551.450.750.249.447.3
Percentage of Assets14.415.715.716.015.115.615.717.016.817.516.817.316.817.316.716.716.116.716.017.416.717.216.716.916.216.816.416.716.216.716.015.815.215.715.015.314.414.714.414.914.314.313.813.112.10.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
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
Value53615344540653695247523552334370434443244245423242054163398939783968395840304137412941184123411741104093390439003896389439073885376236833587356735493453341734183415342834403257
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.811.411.912.112.012.112.511.411.811.911.712.012.212.311.812.012.212.312.614.014.414.414.314.414.514.614.014.814.914.915.114.814.514.213.613.813.613.413.113.813.914.013.813.5

us-gaap:CommonStockValue dei:LegalEntity

dte:DTEElectric


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value544754475447521148114811481146314631463146314306430643064306420642064206420640864086408640864086408637863786
Percentage of CommonStockValue101.6101.9100.897.191.791.991.9106.0106.6107.1109.1101.7102.4103.4107.9105.7106.0106.3104.498.899.099.299.199.299.492.597.0
Percentage of Assets11.011.712.011.711.011.111.512.112.612.712.812.212.512.712.812.712.913.113.113.914.214.314.214.314.413.513.5
Percentage of Assets dte:DTEElectric19.719.820.519.918.619.119.619.220.020.220.619.619.920.320.320.020.320.520.520.220.720.920.921.021.320.120.3

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
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
Value71497342715670926618673265876516619863646100609357605848560055155245536551145131479149094794484545804727457844024246436041504142394540693944396937443804375036983516351334313168
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.415.715.716.015.115.615.717.016.817.516.817.316.817.316.616.716.116.716.017.416.717.216.716.916.216.816.416.716.216.716.015.815.215.715.015.314.414.714.414.914.314.313.813.1

us-gaap:RetainedEarningsAccumulatedDeficit dei:LegalEntity

dte:DTEElectric


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value277626842623265723922343238423792195218521622221203219841956192618151786178718171637160715851591147314741436
Percentage of RetainedEarningsAccumulatedDeficit38.836.636.737.536.134.836.236.535.434.335.436.535.333.934.934.934.633.334.935.434.232.733.132.832.231.231.4
Percentage of Assets5.65.75.86.05.55.45.76.26.06.06.06.35.95.95.85.85.65.65.66.25.75.65.55.65.25.35.1
Percentage of Assets dte:DTEElectric10.09.79.910.19.29.39.79.99.59.59.610.19.49.39.29.28.78.78.79.08.38.28.18.27.77.87.7

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-132000000.0-134000000.0-137000000.0-138000000.0-141000000.0-145000000.0-148000000.0-146000000.0-146000000.0-143000000.0-120000000.0-118000000.0-121000000.0-123000000.0-120000000.0-120000000.0-125000000.0-129000000.0-133000000.0-138000000.0-142000000.0-140000000.0-145000000.0-150000000.0-151000000.0-155000000.0-155000000.0-133000000.0-134000000.0-137000000.0-136000000.0-151000000.0-155000000.0-156000000.0-158000000.0-147000000.0-151000000.0-153000000.0-158000000.0-146000000.0-146000000.0-148000000.0-149000000.0-147000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.3-0.3-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.5-0.5-0.5-0.5-0.5-0.5-0.6-0.6-0.5-0.5-0.5-0.5-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value16116216416516816616416417347548048347447547848048349448819212323211813151718203334353638424243443939444538
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.40.40.40.40.40.40.51.31.31.41.41.41.41.51.51.51.50.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.20.20.20.20.20.20.20.20.2

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2020-09-302018-12-312018-09-302018-06-302015-12-312015-09-302015-06-302015-03-312013-12-312012-12-31
Value110.010.0160.00.00.09.010.010.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.00.0100.0100.00.00.00.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2020-09-302018-12-312018-09-302018-06-302015-12-312015-09-302015-06-302015-03-312013-12-312012-12-312012-09-302012-06-302012-03-31
Value110.010.0160.00.00.09.010.010.09.010.010.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.00.0100.0100.00.00.00.0100.0100.0100.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value859105791611006201061748534615752633614595838567367396787317495531741443288433747541222544532439448670597480568541620522327437722316358334817
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 RegulatedAndUnregulatedOperatingRevenue26.628.027.933.524.035.123.817.121.321.416.917.318.822.317.311.313.924.311.016.923.528.917.811.119.125.017.68.620.213.517.318.830.123.720.425.926.927.724.114.521.729.80.00.00.00.0

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value458571619529283474552491344322475560362323489381303411360470372453442340195173505384183312
Percentage of NetCashProvidedByUsedInOperatingActivities53.354.067.648.145.644.773.891.955.942.875.091.260.838.586.2103.876.552.2113.694.970.161.199.8118.145.023.293.3173.033.658.6
Percentage of RegulatedAndUnregulatedOperatingRevenue14.215.118.816.111.015.717.515.711.99.212.715.811.58.614.911.710.612.712.516.116.417.717.813.18.65.816.414.86.87.9
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.047.831.321.639.143.132.328.926.136.736.828.426.838.426.624.935.028.829.230.639.337.924.517.014.440.928.314.322.1

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-1223000000.0-705000000.0-977000000.0-908000000.0-843000000.0-1342000000.0-3174000000.0-1044000000.0-766000000.0-748000000.0-1011000000.0-956000000.0-794000000.0-586000000.0-760000000.0-555000000.0-608000000.0-641000000.0-1885000000.0-565000000.0-501000000.0-437000000.0-632000000.0-536000000.0-480000000.0-556000000.0-603000000.0-390000000.0-625000000.0-442000000.0-569000000.0-426000000.0-579000000.0-332000000.0-585000000.0-352000000.0-489000000.0-343000000.0-508000000.0-285000000.0-523000000.0-244000000.0-392000000.0-342000000.0-321000000.0-171000000.0
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 RegulatedAndUnregulatedOperatingRevenue-37.9-18.7-29.7-27.6-32.6-44.4-100.8-33.5-26.5-21.3-27.0-26.9-25.1-15.6-23.2-17.1-21.3-19.8-65.6-19.3-22.1-17.0-25.4-20.6-21.2-18.6-19.6-15.0-23.2-11.2-22.5-17.8-26.0-13.2-24.9-16.1-24.3-15.3-23.5-12.6-25.9-10.10.00.00.00.0

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-1008000000.0-513000000.0-690000000.0-605000000.0-515000000.0-872000000.0-592000000.0-535000000.0-461000000.0-639000000.0-734000000.0-429000000.0-455000000.0-371000000.0-454000000.0-368000000.0-333000000.0-387000000.0-445000000.0-365000000.0-366000000.0-297000000.0-570000000.0-394000000.0-345000000.0-312000000.0-441000000.0-305000000.0-542000000.0-101000000.0
Percentage of NetCashProvidedByUsedInInvestingActivities82.472.870.666.661.165.018.751.260.285.472.644.957.363.359.766.354.860.423.664.673.168.090.273.571.956.173.178.286.722.9
Percentage of RegulatedAndUnregulatedOperatingRevenue-31.2-13.6-21.0-18.4-19.9-28.9-18.8-17.2-16.0-18.2-19.6-12.1-14.4-9.9-13.9-11.3-11.7-12.0-15.5-12.5-16.2-11.6-22.9-15.2-15.2-10.5-14.3-11.8-20.1-2.6
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.0-53.3-35.8-39.3-71.9-46.2-35.2-38.7-51.7-56.6-28.2-35.7-30.8-35.6-25.7-27.3-32.9-35.6-22.7-30.1-25.8-48.9-28.4-30.1-25.9-35.7-22.5-42.3-7.2

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
Value2244702-385.01491688642443524152-19.035036099-155.0196189192-156.01594104-33.0-306.015985178-140.05015358-44.01113.0-263.0-112.0111-342.076-288.08.0-57.0-50.0-346.057-56.0-82.0-505.0
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 RegulatedAndUnregulatedOperatingRevenue69.518.6-11.74.56.528.677.616.85.3-0.59.310.13.1-4.16.05.86.7-4.855.53.6-1.5-11.96.43.37.8-4.71.65.92.1-1.14.40.1-11.8-4.54.7-15.63.8-12.90.4-2.5-2.5-14.30.00.00.00.0

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-317.0804-102.0-71.05553992661116309265-127.08549-32.0-10.028-26.082-102.0-10.0-154.0114-40.0219179-78.0-80.0354-204.0
Percentage of NetCashProvidedByUsedInFinancingActivities-14.1114.526.5-47.7330.446.21.111.676.3-1626.375.7-35.385.9-31.6-16.3-5.314.616.75.1-98.130.350.371.7-47.1123.0-127.9-156.0-52.3610.3463.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-9.821.3-3.1-2.221.513.20.82.04.08.87.1-3.62.71.3-1.0-0.31.0-0.82.9-3.5-0.4-6.04.6-1.59.76.0-2.5-3.113.1-5.2
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.0-7.9-4.242.432.92.04.09.725.020.4-8.36.74.1-2.5-0.72.3-2.26.6-6.3-0.8-13.49.8-2.919.114.9-6.3-5.927.6-14.5

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value18801054-446.0341-55.058317141.0-15.0-28.018-100.0973.02.0-18.0-11.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue58.227.9-13.610.4-2.119.30.50.40.0-0.4-0.70.5-3.22.60.10.1-0.6-0.3

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity

dte:DTEElectric


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-867.0862-173.0-147.03231.0-14.017-1.0-8.06.04.0-8.01.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect-46.181.838.8-43.1-587.30.2-82.4121.4-100.053.3-21.422.28.01.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-26.922.8-5.3-4.512.50.0-0.40.5-0.0-0.20.20.1-0.30.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.0-13.4-8.724.70.1-1.11.1-0.1-0.60.50.3-0.60.1

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


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
Value380368384356350353340322305296298273272281274258249249274230243229227196220209290293282280283284268259271265250232243259248245252271253251
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization dei:LegalEntity

dte:DTEElectric


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value272260275258252258252244229221220202202212204188180181211176187176172141165155232238229228
Percentage of DepreciationDepletionAndAmortization71.670.771.672.572.073.174.175.875.174.773.874.074.375.474.572.972.372.777.076.577.076.975.871.975.074.280.081.281.281.4

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value132-20.0-2.0-54.0-24.03.0-44.041-288.013743102-136.01042.056-33.01064983-93.0-33.0-6.04.0-123.080-56.04.010030-45.0-97.0126-75.031-49.05357-61.088-61.026-21.054-47.0
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayable dei:LegalEntity

dte:DTEElectric


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value33-8.0-17.0-5.0-64.0106-42.0-2.023-36.0362028-30.0-34.036-30.0260.0277.025-49.031-20.0-8.04.0-3.0-63.073
Percentage of IncreaseDecreaseInAccountsPayable25.040.00.0250.0118.5-441.7-1400.04.556.112.526.346.527.522.1-32.71800.0-53.6-78.80.055.18.4-26.9148.5-516.7-500.06.55.05.4-1575.073.0

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
Value105-52.0-99.03079-55.0-54.041161-207.0439378-182.0-37.073103-135.0-27.07657-143.0-37.010999-172.012174138-147.0-88.0-168.0-88.022130-76.0-44.0125-244.092148-125.0-67.0166122-88.0
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInInventories dei:LegalEntity

dte:DTEElectric


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value41-24.0-18.0-2.014183.02.063-51.028-19.026-50.01.0-9.021-44.0-8.07.06.0-31.05.02.017-2.05910.083-55.0
Percentage of IncreaseDecreaseInInventories39.046.218.2-6.717.7-32.7-5.64.939.124.665.1-20.433.327.5-2.7-12.320.432.629.69.210.521.7-13.51.817.21.2491.75.760.137.4

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-101.0187-75.0-74.0-13.0-104.0-96.05721131-312.037-76.0-62.0-144.050-2.0150-205.057-44.097-71.0-1.0-6.0-99.072-231.0-44.0-84.0-58.0-109.0-191.0-46.0218-26.0-240.0
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet dei:LegalEntity

dte:DTEElectric


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value9.01502310745-132.0-40.06823146-172.067-37.041-27.0834.087-85.075-24.068-49.03917-65.0-48.026
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet-8.980.2-30.7-144.6-346.2126.941.7119.3109.5111.555.1181.148.7-66.118.8166.0-200.058.041.5131.654.570.169.0-3900.0-283.365.70.036.1

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
Value859105791611006201061748534615752633614595838567367396787317495531741443288433747541222544532439448670597480568541620522327437722316358334817
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 RegulatedAndUnregulatedOperatingRevenue26.628.027.933.524.035.123.817.121.321.416.917.318.822.317.311.313.924.311.016.923.528.917.811.119.125.017.68.620.213.517.318.830.123.720.425.926.927.724.114.521.729.80.00.00.00.0

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value458571619529283474552491344322475560362323489381303411360470372453442340195173505384183312
Percentage of NetCashProvidedByUsedInOperatingActivities53.354.067.648.145.644.773.891.955.942.875.091.260.838.586.2103.876.552.2113.694.970.161.199.8118.145.023.293.3173.033.658.6
Percentage of RegulatedAndUnregulatedOperatingRevenue14.215.118.816.111.015.717.515.711.99.212.715.811.58.614.911.710.612.712.516.116.417.717.813.18.65.816.414.86.87.9
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.047.831.321.639.143.132.328.926.136.736.828.426.838.426.624.935.028.829.230.639.337.924.517.014.440.928.314.322.1

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value17939727547627734026731918240119133423436128727017740013133815224780265109273299156124326124198105234812271461561501832021761521638622912015183178
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue5.510.58.414.510.711.38.510.26.311.45.19.47.49.68.88.36.212.44.611.56.79.63.210.24.89.19.76.04.68.34.98.34.79.33.410.47.37.06.98.110.07.30.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2382081014001839412930713314756305163140138219138106752851351279221699137129136130137
Percentage of NetIncomeLoss133.052.436.784.066.127.648.396.273.136.729.391.369.738.848.181.178.026.557.384.388.851.4115.081.590.850.243.187.2104.842.0
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.53.112.27.13.14.19.84.64.21.58.65.23.74.26.74.83.32.69.76.04.93.78.34.44.64.25.24.83.5
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.07.823.714.07.810.120.211.211.94.320.112.811.610.815.311.39.06.017.711.111.07.915.68.611.410.510.010.19.7

us-gaap:NetIncomeLoss dei:LegalEntity, us-gaap:StatementEquityComponents

dte:DTEElectric, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2382084001839430713314756305163140138219138106752851351279221699137
Percentage of NetIncomeLoss133.052.484.066.127.696.273.136.729.391.369.738.848.181.178.026.557.384.388.851.4115.081.590.850.2
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.512.27.13.19.84.64.21.58.65.23.74.26.74.83.32.69.76.04.93.78.34.44.6
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments

dte:Electric


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2382083981839430713314730516314021913810628513512721499136135129136101179891156619412796
Percentage of NetIncomeLoss133.052.483.666.127.696.273.136.791.369.738.881.178.026.584.388.851.480.890.849.886.5104.041.781.590.484.849.181.585.587.061.5
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.512.17.13.19.84.64.28.65.23.76.74.83.39.76.04.98.24.44.65.24.83.54.07.54.04.62.88.96.34.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Electric16.915.223.513.97.720.211.211.920.112.811.60.00.00.00.00.00.00.00.00.00.00.00.00.00.07.00.00.00.09.80.0

dte:EnergyTrading


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-66.0-55.0-28.0-1.034-14.0-6.032-13.0-5.0311.00.096-4.0-23.0-7.012-3.0-9.0-22.0-14.042-57.0-6.0-2.07.09.01.04.0-2.01622122.06.0-12.0
Percentage of NetIncomeLoss-36.9-13.9-5.9-0.410.0-4.4-3.38.0-3.9-2.18.60.40.024.0-1.2-15.1-2.84.5-2.8-3.3-14.1-11.312.9-46.0-3.0-1.93.011.10.42.7-1.310.712.05.91.13.9-7.4
Percentage of RegulatedAndUnregulatedOperatingRevenue-2.0-1.5-0.9-0.01.1-0.4-0.20.9-0.4-0.20.80.00.03.0-0.1-1.0-0.30.5-0.1-0.3-0.8-0.51.1-2.3-0.3-0.10.30.40.00.2-0.10.71.00.60.10.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:EnergyTrading-5.7-3.8-2.6-0.13.7-1.3-0.52.5-1.0-0.42.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.40.00.00.01.70.00.00.00.00.00.00.0

dte:Gas


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7.0169-20.01.0121-38.08.0151-30.014104-15.01.0107-4.01387-11.0-7.0111-16.0-4.012952-13.08.096554.04.052
Percentage of NetIncomeLoss3.942.6-4.20.435.6-11.94.437.7-9.06.028.8-5.60.626.8-1.28.635.2-4.2-6.440.7-10.3-3.239.641.9-6.67.641.067.91.82.733.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.24.5-0.60.04.0-1.20.34.3-0.80.42.8-0.50.03.3-0.10.63.4-0.4-0.33.7-0.6-0.13.32.1-0.50.43.82.30.20.22.3
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:Gas2.627.6-11.60.422.4-24.53.323.4-18.35.518.90.00.00.00.00.00.00.00.00.00.00.00.00.00.03.20.00.00.01.90.0

dte:GasStorageAndPipelines


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value647910470726050486660623640452835302725272018212116161713141717151314151512
Percentage of NetIncomeLoss35.819.921.825.321.218.827.512.019.825.617.213.322.611.28.323.012.110.222.99.912.814.56.416.98.115.27.316.06.211.610.910.07.16.98.59.97.4
Percentage of RegulatedAndUnregulatedOperatingRevenue2.02.13.22.72.41.91.71.41.91.91.71.11.41.41.01.51.21.01.10.90.80.70.50.80.70.70.70.60.60.80.80.70.60.70.60.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:GasStorageAndPipelines30.840.151.040.742.447.641.341.454.149.252.10.00.00.00.00.00.00.00.00.00.00.00.00.00.051.60.00.00.063.00.00.00.00.00.00.00.0

dte:PowerAndIndustrialProjects


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1428472530492926584345443030341517328.03338131520277.0122.02210.08.011125.010.01926
Percentage of NetIncomeLoss7.87.19.99.08.815.415.96.517.418.412.516.316.97.510.19.96.912.17.312.124.410.54.616.113.66.75.12.59.76.85.17.36.62.55.712.516.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.71.41.01.01.61.00.71.61.41.21.41.10.91.20.70.71.20.41.11.50.50.40.81.10.30.50.11.00.50.40.50.50.20.40.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:PowerAndIndustrialProjects3.67.714.511.49.812.17.26.79.58.07.90.00.00.00.00.00.00.00.00.00.00.00.00.00.01.60.00.00.02.20.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-78.0-32.0-25.0-1.0-11.0-45.0-32.0-3.0-52.0-41.0-21.0-15.0-32.016-1.0-23.0-7.0-9.0-13.0-25.01.0-18.0-17.0-13.0-5.0-13.0-13.0-11.0-8.0-14.0-15.0-24.0-8.072
Percentage of NetIncomeLoss-43.6-8.1-5.3-0.4-3.2-14.1-17.6-0.7-15.6-17.5-5.8-5.6-18.14.0-0.3-15.1-2.8-3.4-11.9-9.20.6-14.5-5.2-10.5-2.5-12.4-5.6-13.6-3.5-9.6-9.6-16.0-4.435.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-2.4-0.8-0.8-0.0-0.4-1.4-1.1-0.1-1.5-1.3-0.6-0.5-1.10.5-0.0-1.0-0.3-0.3-0.6-0.80.0-0.7-0.4-0.5-0.2-0.6-0.5-0.5-0.4-0.7-0.7-1.1-0.43.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value179397275477277342268317179408196335236351280263175394124325145240772641052743011571263271262001072358323014715815718520017815616687230
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 RegulatedAndUnregulatedOperatingRevenue5.510.58.414.510.711.38.510.26.211.65.29.47.59.48.68.16.112.24.311.16.49.43.110.24.69.29.86.14.78.35.08.44.89.33.510.57.37.17.38.29.97.30.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312011-03-31
Value1.00.02.0-2.0-3.07.05.01.02.0-10.0-7.0-7.0-2.0-6.0-7.0-13.0-7.0-7.0-3.0-1.0-4.01.02.01.02.01.02.02.0
Percentage of ProfitLoss0.20.00.6-0.6-1.71.72.60.30.8-2.8-2.5-2.7-1.1-1.5-5.6-4.0-4.8-2.9-3.9-0.4-3.80.40.70.61.60.31.61.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.1-0.1-0.10.20.10.00.1-0.3-0.2-0.2-0.1-0.2-0.2-0.4-0.3-0.3-0.1-0.0-0.20.00.10.00.10.00.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1793974762773403191824011913342343612872701774001313381522478026510927329915612432612419810523481227146156150183202176630
Percentage of ProfitLoss100.0100.099.8100.099.4100.6101.798.397.499.799.2102.8102.5102.7101.1101.5105.6104.0104.8102.9103.9100.4103.899.699.399.498.499.798.499.098.199.697.698.799.398.795.598.9101.098.9403.8
Percentage of RegulatedAndUnregulatedOperatingRevenue5.510.514.510.711.310.26.311.45.19.47.49.68.88.36.212.44.611.56.79.63.210.24.89.19.76.04.68.34.98.34.79.33.410.47.37.06.98.110.07.30.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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-1223000000.0-705000000.0-977000000.0-908000000.0-843000000.0-1342000000.0-3174000000.0-1044000000.0-766000000.0-748000000.0-1011000000.0-956000000.0-794000000.0-586000000.0-760000000.0-555000000.0-608000000.0-641000000.0-1885000000.0-565000000.0-501000000.0-437000000.0-632000000.0-536000000.0-480000000.0-556000000.0-603000000.0-390000000.0-625000000.0-442000000.0-569000000.0-426000000.0-579000000.0-332000000.0-585000000.0-352000000.0-489000000.0-343000000.0-508000000.0-285000000.0-523000000.0-244000000.0-392000000.0-342000000.0-321000000.0-171000000.0
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 RegulatedAndUnregulatedOperatingRevenue-37.9-18.7-29.7-27.6-32.6-44.4-100.8-33.5-26.5-21.3-27.0-26.9-25.1-15.6-23.2-17.1-21.3-19.8-65.6-19.3-22.1-17.0-25.4-20.6-21.2-18.6-19.6-15.0-23.2-11.2-22.5-17.8-26.0-13.2-24.9-16.1-24.3-15.3-23.5-12.6-25.9-10.10.00.00.00.0

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-1008000000.0-513000000.0-690000000.0-605000000.0-515000000.0-872000000.0-592000000.0-535000000.0-461000000.0-639000000.0-734000000.0-429000000.0-455000000.0-371000000.0-454000000.0-368000000.0-333000000.0-387000000.0-445000000.0-365000000.0-366000000.0-297000000.0-570000000.0-394000000.0-345000000.0-312000000.0-441000000.0-305000000.0-542000000.0-101000000.0
Percentage of NetCashProvidedByUsedInInvestingActivities82.472.870.666.661.165.018.751.260.285.472.644.957.363.359.766.354.860.423.664.673.168.090.273.571.956.173.178.286.722.9
Percentage of RegulatedAndUnregulatedOperatingRevenue-31.2-13.6-21.0-18.4-19.9-28.9-18.8-17.2-16.0-18.2-19.6-12.1-14.4-9.9-13.9-11.3-11.7-12.0-15.5-12.5-16.2-11.6-22.9-15.2-15.2-10.5-14.3-11.8-20.1-2.6
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.0-53.3-35.8-39.3-71.9-46.2-35.2-38.7-51.7-56.6-28.2-35.7-30.8-35.6-25.7-27.3-32.9-35.6-22.7-30.1-25.8-48.9-28.4-30.1-25.9-35.7-22.5-42.3-7.2

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment dei:LegalEntity

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

dte:DTEElectric


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1010502693600510871589538542531741423455370471366329408504359325315500380354311418311478354
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value2244702-385.01491688642443524152-19.035036099-155.0196189192-156.01594104-33.0-306.015985178-140.05015358-44.01113.0-263.0-112.0111-342.076-288.08.0-57.0-50.0-346.057-56.0-82.0-505.0
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 RegulatedAndUnregulatedOperatingRevenue69.518.6-11.74.56.528.677.616.85.3-0.59.310.13.1-4.16.05.86.7-4.855.53.6-1.5-11.96.43.37.8-4.71.65.92.1-1.14.40.1-11.8-4.54.7-15.63.8-12.90.4-2.5-2.5-14.30.00.00.00.0

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

dte:DTEElectric


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-317.0804-102.0-71.05553992661116309265-127.08549-32.0-10.028-26.082-102.0-10.0-154.0114-40.0219179-78.0-80.0354-204.0
Percentage of NetCashProvidedByUsedInFinancingActivities-14.1114.526.5-47.7330.446.21.111.676.3-1626.375.7-35.385.9-31.6-16.3-5.314.616.75.1-98.130.350.371.7-47.1123.0-127.9-156.0-52.3610.3463.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-9.821.3-3.1-2.221.513.20.82.04.08.87.1-3.62.71.3-1.0-0.31.0-0.82.9-3.5-0.4-6.04.6-1.59.76.0-2.5-3.113.1-5.2
Percentage of RegulatedAndUnregulatedOperatingRevenue dte:DTEElectric0.00.0-7.9-4.242.432.92.04.09.725.020.4-8.36.74.1-2.5-0.72.3-2.26.6-6.3-0.8-13.49.8-2.919.114.9-6.3-5.927.6-14.5

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value3046989968103959310921073-5.0794644-1.09135200.0388515-1.04961389585880.00.01632984954476945950.0466397-1.0372264-1.04960.027136119
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfLongTermDebt dei:LegalEntity

dte:DTEElectric


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-2.09890.0-2.059310920.00.0-1.0644-1.00.05200.00.04350.0582970.00.00.0-1.04960.06942480.0
Percentage of ProceedsFromIssuanceOfLongTermDebt-0.1100.00.0-0.2100.0100.00.0-0.0-0.1100.0100.00.0100.00.00.084.50.0100.050.50.00.00.0-0.3100.20.0100.041.70.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2003820.03008210.00.00.00.03.00.03791.05.04859.030211261421.0117155585491151063403741411923075486294440627943.05691.090
Percentage of RepaymentsOfLongTermDebt100.0100.00.0100.0100.00.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity

dte:DTEElectric


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.03320.03000.00.00.00.03000.00.00.00.00.010.0200.00.01150.0556168113
Percentage of RepaymentsOfLongTermDebt0.086.90.0100.00.00.00.00.079.20.00.00.00.00.090.976.90.00.098.30.099.630.698.3

us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

dte:DTEElectric, dte:A2010SeriesB3.45SeniorNotesDue2020, us-gaap:SeniorNotes


Repayments
Period End2020-07-31
Value300
Percentage of RepaymentsOfLongTermDebt0.0

dte:DTEElectric, dte:A563SeniorNotesMaturing2020, us-gaap:SeniorNotes


Repayments
Period End2020-07-31
Value32
Percentage of RepaymentsOfLongTermDebt0.0

dte:DTEElectric, dte:A700MortgageBondsDueIn2021, us-gaap:Mortgages


Repayments
Period End2021-05-31
Value33
Percentage of RepaymentsOfLongTermDebt0.0

dte:DTEElectric, dte:SeriesB2011390GeneralAndRefundingMortgageBonds, us-gaap:Mortgages


Repayments
Period End2021-04-30
Value250
Percentage of RepaymentsOfLongTermDebt0.0

dte:DTEGas, dte:A2008SeriesI636SeniorNotesMaturing2020, us-gaap:SeniorNotes


Repayments
Period End2020-09-30
Value50
Percentage of RepaymentsOfLongTermDebt13.1

us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

dte:DTEElectric, dte:SeriesB2011390GeneralAndRefundingMortgageBonds, us-gaap:Mortgages, us-gaap:SubsequentEvent


Repayments
Period End2021-04-23
Value250
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

dte:SeriesB20165.375JuniorSubordinatedDebenturesDue2076, us-gaap:SeniorNotes


Repayments
Period End2021-06-30
Value300
Percentage of RepaymentsOfLongTermDebt0.0

dte:SeriesC20125.25JuniorSubordinatedDebenturesDue2062, us-gaap:JuniorSubordinatedDebt


Repayments
Period End2020-10-31
Value200
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

dte:A260SeniorNotesDueIn2022, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value300
Percentage of RepaymentsOfLongTermDebt0.0

dte:A330SeniorNotesDueIn2022, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value300
Percentage of RepaymentsOfLongTermDebt0.0

dte:A340SeniorNotesDueIn2029, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value21
Percentage of RepaymentsOfLongTermDebt0.0

dte:A350SeniorNotesDueIn2024, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value350
Percentage of RepaymentsOfLongTermDebt0.0

dte:A370SeniorNotesDueIn2023, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value600
Percentage of RepaymentsOfLongTermDebt0.0

dte:A380SeniorNotesDueIn2027, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value350
Percentage of RepaymentsOfLongTermDebt0.0

dte:A385SeniorNotesDueIn2023, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value135
Percentage of RepaymentsOfLongTermDebt0.0

dte:A6375SeniorNotesDueIn2033, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value191
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:StatementScenario, us-gaap:DebtInstrument, us-gaap:SubsequentEventType

srt:ScenarioForecast, dte:A385SeniorNotesDueIn2023, us-gaap:SubsequentEvent


Repayments
Period End2021-08-31
Value165
Percentage of RepaymentsOfLongTermDebt0.0

srt:ScenarioForecast, dte:A6375SeniorNotesDueIn2033, us-gaap:SubsequentEvent


Repayments
Period End2021-08-31
Value209
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:StatementScenario, us-gaap:SubsequentEventType

srt:ScenarioForecast, us-gaap:SubsequentEvent


Repayments
Period End2021-08-31
Value374
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Repayments
Period End2021-07-27
Value2200
Percentage of RepaymentsOfLongTermDebt0.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


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
Value2102101861841951951741731731721611501511581481481481481381311311311311241241221221161161161161141081071071011009910099959595898888
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsCommonStock dei:LegalEntity

dte:DTEElectric


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value14614713513513413512412312312411511611511510810810810810510510510598981009993929293
Percentage of PaymentsOfDividendsCommonStock69.570.072.673.468.769.271.371.171.172.171.477.376.272.873.073.073.073.076.180.280.280.274.879.080.681.176.279.379.380.2

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.0540.00.00.00.00.00.00.0510.00.00.0330.00.00.00.00.00.02.0500.00.00.00.00.00.00.00.00.00.09.09.00.0
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.00.00.00.00.00.00.00.0100.00.00.00.0100.00.00.00.00.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.0100.0100.00.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
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
Value11.07.00.912.00.020.13-0.0050.130.110.12-0.0390.090.070.16-0.0840.220.250.22-0.0050.250.260.26-0.0380.280.20.310.0150.120.280.33-0.0150.280.290.31-0.0220.320.320.320.0310.350.140.37-0.0130.360.340.34
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateContinuingOperations dei:LegalEntity

dte:DTEElectric


Effective
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
Value10.09.00.313.00.120.120.0020.160.160.160.0050.210.210.250.0020.350.350.350.0020.350.360.36-0.0010.350.350.35-0.0010.360.370.36
Percentage of EffectiveIncomeTaxRateContinuingOperations90.9128.633.3108.3600.092.3-40.0123.1145.5133.3-12.8233.3300.0156.2-2.4159.1140.0159.1-40.0140.0138.5138.52.6125.0175.0112.9-6.7300.0132.1109.1

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value28222315197518884162392337013349-4208.0-4113.0-3911.0-3391.0
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilities dei:LegalEntity

dte:DTEElectric


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2525235522462088379334983186
Percentage of DeferredTaxLiabilities89.5101.7113.7110.691.189.286.1

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value22412264202118141463108886118081038104814181462
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsNet dei:LegalEntity

dte:DTEElectric


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value883865855830569453357
Percentage of DeferredTaxAssetsNet39.438.242.345.838.941.641.5

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value10.08.08.010.08.08.08.010.08.08.08.010.010.010.010.010.03.03.03.03.03.09.09.09.010.0113.03.04.04.04.03.05.028817222
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefits dei:LegalEntity

dte:DTEElectric


Unrecognized
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value1310.010.01310.010.010.01310.010.010.013131313134.04.04.04.04.04.04.04.04.04.0
Percentage of UnrecognizedTaxBenefits130.0125.0125.0130.0125.0125.0125.0130.0125.0125.0125.0130.0130.0130.0130.0130.0133.3133.3133.3133.3133.344.444.444.440.036.4

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value414033403635313733-27.03243
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:AdjustmentsToAdditionalPaidInCapitalContributionsFromParent dei:LegalEntity

dte:AdjustmentsToAdditionalPaidInCapitalContributionsFromParent

dte:DTEElectric


Adjustments
Period End2020-09-30
Value400
Percentage of AdjustmentsToAdditionalPaidInCapitalContributionsFromParent100.0

dte:AdjustmentsToAdditionalPaidInCapitalContributionsFromParent dei:LegalEntity, us-gaap:StatementEquityComponents

dte:DTEElectric, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-30
Value400
Percentage of AdjustmentsToAdditionalPaidInCapitalContributionsFromParent100.0

dte:ContractWithCustomerLiabilityIncreaseFromCashReceipts

dte:ContractWithCustomerLiabilityIncreaseFromCashReceipts


Contract
Period End2021-06-302021-03-312020-12-31
Value252116
Percentage of ContractWithCustomerLiabilityIncreaseFromCashReceipts100.0100.0100.0

dte:EffectiveIncomeTaxRateReconciliationCARESActAmount us-gaap:UnusualOrInfrequentItem

dte:EffectiveIncomeTaxRateReconciliationCARESActAmount

dte:COVID19CARESAct


Effective
Period End2020-12-312020-09-302020-06-30
Value00-34000000.0
Percentage of EffectiveIncomeTaxRateReconciliationCARESActAmount0.00.0100.0

dte:EffectiveIncomeTaxRateReconciliationCARESActPercent

dte:EffectiveIncomeTaxRateReconciliationCARESActPercent


Effective
Period End2020-09-302020-06-30
Value2.950.12
Percentage of EffectiveIncomeTaxRateReconciliationCARESActPercent100.0100.0

dte:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackCARESActPercent

dte:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackCARESActPercent


Effective
Period End2021-06-30
Value12.0
Percentage of EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackCARESActPercent100.0

dte:EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017AmortizationOfRegulatoryLiabilityPercent

dte:EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017AmortizationOfRegulatoryLiabilityPercent


Effective
Period End2021-06-30
Value-3.0
Percentage of EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017AmortizationOfRegulatoryLiabilityPercent100.0

dte:EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017AmortizationOfRegulatoryLiabilityPercent dei:LegalEntity

dte:DTEElectric


Effective
Period End2021-06-30
Value-1.0
Percentage of EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017AmortizationOfRegulatoryLiabilityPercent33.3

dte:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017AmortizationofRegulatoryLiabilityPercent

dte:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017AmortizationofRegulatoryLiabilityPercent


Effective
Period End2021-03-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-2.02.00.020.020.030.03
Percentage of EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017AmortizationofRegulatoryLiabilityPercent100.0100.0100.0100.0100.0100.0

dte:EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017AmortizationofRegulatoryLiabilityPercent dei:LegalEntity

dte:DTEElectric


Effective
Period End2021-03-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-1.03.00.030.0300.04
Percentage of EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017AmortizationofRegulatoryLiabilityPercent50.0150.0150.0150.00.0133.3

dte:EmployerPayrollTaxesDeferralCARESAct dei:LegalEntity, us-gaap:UnusualOrInfrequentItem

dte:EmployerPayrollTaxesDeferralCARESAct

dte:DTEElectric, dte:COVID19CARESAct


Employer
Period End2020-12-31
Value6.0
Percentage of EmployerPayrollTaxesDeferralCARESAct100.0

dte:EmployerPayrollTaxesDeferralCARESAct us-gaap:UnusualOrInfrequentItem

dte:COVID19CARESAct


Employer
Period End2020-12-31
Value12
Percentage of EmployerPayrollTaxesDeferralCARESAct200.0

dte:FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency

dte:FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities

dte:DTEElectric, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value15-3.0-3.010.00.0-2.0-1.09.00.00.0-2.0153.05.01.08.00.0-1.01.04.00.0
Percentage of FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0

dte:FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

dte:OtherCommodityContract, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302020-06-30
Value1510.0
Percentage of FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities100.0100.0

dte:FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302020-06-30
Value1510.0
Percentage of FairValueAssetsMeasuredonRecurringBasisChangeinUnrealizedGainLossincludedinregulatoryassetsandliabilities100.0100.0

dte:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency

dte:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities

dte:DTEElectric, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value16-1.0-1.09.014-2.0-1.0-3.09.0-3.03.0-8.0150.010.02.0112.00.02.06.0-2.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0

dte:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

dte:OtherCommodityContract, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value16-1.0-1.09.014-2.0-1.0-3.09.0-3.03.0-8.0150.010.02.0112.00.02.06.0-2.03.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.00.0

dte:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value16-1.0-1.09.014-2.0-1.0-3.09.0-3.03.0-8.0150.010.02.0112.00.02.06.0-2.03.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainsLossesRecordedInRegulatoryAssetsLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.00.0

dte:FinancingReceivableCreditLossExpenseReversalAdjustedForRegulatoryDeferrals

dte:FinancingReceivableCreditLossExpenseReversalAdjustedForRegulatoryDeferrals


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value4.03133221533302824
Percentage of FinancingReceivableCreditLossExpenseReversalAdjustedForRegulatoryDeferrals100.0100.0100.0100.0100.0100.0100.0100.0100.0

dte:FinancingReceivableCreditLossExpenseReversalAdjustedForRegulatoryDeferrals dei:LegalEntity

dte:DTEElectric


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value5.01120169.017181714
Percentage of FinancingReceivableCreditLossExpenseReversalAdjustedForRegulatoryDeferrals125.035.560.672.760.051.560.060.758.3

dte:FinancingReceivableCreditLossExpenseReversalReclassificationToFromRegulatoryAssets dei:LegalEntity, us-gaap:UnusualOrInfrequentItem

dte:FinancingReceivableCreditLossExpenseReversalReclassificationToFromRegulatoryAssets

dte:DTEElectric, dte:COVID19Pandemic