DUK


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

Table of contents


dei:LegalEntity
us-gaap:CommonStockValue
us-gaap:ForwardContractIndexedToIssuersEquityType
us-gaap:SharesIssued
dei:LegalEntity
us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesOutstanding
dei:LegalEntity
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity

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

us-gaap:CostsAndExpenses
dei:LegalEntity

us-gaap:IncomeLossFromContinuingOperations
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:UnusualOrInfrequentItem

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

us-gaap:InterestExpense
dei:LegalEntity

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

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:UnusualOrInfrequentItem

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity

us-gaap:OperatingIncomeLoss
dei:LegalEntity

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

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:PreferredStockDividendsIncomeStatementImpact

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

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

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

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

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

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity

us-gaap:InventoryRawMaterialsAndSupplies
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:OtherAssetsCurrent
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:PrepaidExpenseAndOtherAssetsCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:PropertyPlantAndEquipmentGross
dei:LegalEntity
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
dei:LegalEntity, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PublicUtility
us-gaap:PublicUtilityRegulatedOrUnregulatedStatus

us-gaap:PropertyPlantAndEquipmentNet
dei:LegalEntity
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:Goodwill
dei:LegalEntity
us-gaap:StatementBusinessSegments

us-gaap:FiniteLivedIntangibleAssetsNet
dei:LegalEntity

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity
us-gaap:EquitySecuritiesFvNi
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization

us-gaap:AccountsPayableCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:AccruedIncomeTaxesCurrent

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

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

us-gaap:TaxesPayableCurrent
dei:LegalEntity

us-gaap:LongTermDebt
dei:LegalEntity

us-gaap:LongTermDebtNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:DebtAndCapitalLeaseObligations
dei:LegalEntity

us-gaap:LongTermDebtAndCapitalLeaseObligations
dei:LegalEntity

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

us-gaap:MinorityInterest
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent
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
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock
dei:LegalEntity

us-gaap:RetainedEarningsAccumulatedDeficit
dei:LegalEntity

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity

us-gaap:MinorityInterest
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementClassOfStock
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
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:DeferredIncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:DepreciationDepletionAndAmortization
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInInventories
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

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

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

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
dei:LegalEntity

us-gaap:PaymentsToAcquireInvestments
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

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

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

us-gaap:EffectiveIncomeTaxRateContinuingOperations
dei:LegalEntity

us-gaap:DeferredTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsNet
dei:LegalEntity

us-gaap:UnrecognizedTaxBenefits
dei:LegalEntity

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward
us-gaap:TaxCreditCarryforward

us-gaap:ProceedsFromRepaymentsOfShortTermDebt

duk:AccountsReceivableAllowanceforCreditLossOther
dei:LegalEntity

duk:AccountsReceivableAllowanceforCreditLossWriteoffRecovery
dei:LegalEntity

duk:AccumulatedDividendsPreferredStockStock
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:PublicUtility
duk:CoalFiredGenerationCapacityPotentialPlantsToBeRetiredInMegawatts
us-gaap:PropertyPlantAndEquipmentByType

duk:ComprehensiveIncomeLossNetofTaxAvailabletoCommonStockholdersDiluted
dei:LegalEntity
duk:ContributionsfromParent
dei:LegalEntity, us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:RetirementPlanType
duk:DefinedBenefitPlanAmortizationofSettlementCharges
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:PublicUtility
duk:EstimatedCostofGenerationFacilitiestobeBuilt
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
duk:FinancingReceivableSales
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

duk:IncomeLossfromContinuingOperationsNetofTaxExcludingParticipatingSecuritiesandAccumulatedPreferredStockDividends
us-gaap:TaxCreditCarryforward
duk:IncomeTaxInterestIncome
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
duk:IncreaseinAnnualRevenuePercent

duk:NetIncomeLossAllocationtoNoncontrollingInterest

duk:NetIncomeLossAllocationtoNoncontrollingProRataShareInterest

duk:NetIncomeLossAllocationtoNoncontrollingTaxEquityMembers

duk:NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestIncludingPreferredDistributions
us-gaap:StatementEquityComponents

duk:OtherProceedsfromShorttermDebtMaturinginMorethanThreeMonths

duk:OtherRepaymentsofShorttermDebtMaturinginMorethanThreeMonths

duk:PaymentsToCancelledEquityMethodInvestments
us-gaap:SubsequentEventType
duk:PowerOutageNumber

duk:ProceedsfromNoncontrollingInterestsNoncontrollingTaxEquityMembers

duk:ProvisionForRateRefunds
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
duk:PublicUtilitiesAdditionalApprovedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtility
duk:PublicUtilitiesEstimatedCostOfGenerationFacilitiesToBeBuilt
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
duk:PublicUtilitiesIncreaseInAnnualRevenuePercent
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:ReversalOfRevenues
us-gaap:UnusualOrInfrequentItem
duk:WaivedLatePaymentFees

us-gaap:AssetImpairmentCharges

us-gaap:AssetRetirementObligationAccretionExpense
dei:LegalEntity

us-gaap:AssetRetirementObligationCashPaidToSettle
dei:LegalEntity

us-gaap:AssetRetirementObligationLiabilitiesIncurred

us-gaap:AssetRetirementObligationLiabilitiesSettled
dei:LegalEntity

us-gaap:AssetRetirementObligationRevisionOfEstimate
dei:LegalEntity

us-gaap:CapitalExpendituresIncurredButNotYetPaid
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:CashFlowsBetweenTransfereeAndTransferorServicingFees
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType
us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesSaleOfInterestByParent

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain
dei:LegalEntity

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
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
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:PublicUtility
us-gaap:DerivativeNonmonetaryNotionalAmountEnergyMeasure
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:PublicUtility
us-gaap:DerivativeNonmonetaryNotionalAmountVolume
us-gaap:DerivativeInstrumentRisk, us-gaap:PublicUtility
dei:LegalEntity
us-gaap:DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid

us-gaap:DividendsCommonStockStock

us-gaap:EnvironmentalExitCostsReasonablyPossibleAdditionalLoss
dei:LegalEntity

us-gaap:EquitySecuritiesFvNiRealizedGain
dei:LegalEntity

us-gaap:EquitySecuritiesFvNiRealizedLoss
dei:LegalEntity

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
dei:LegalEntity
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases
dei:LegalEntity

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
dei:LegalEntity
us-gaap:ForwardContractIndexedToIssuersEquityType
us-gaap:ForwardContractIndexedToIssuersEquityForwardRate

us-gaap:GainLossOnDispositionOfAssets1
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:GainLossOnSaleOfAccountsReceivable
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:GainLossOnSaleOfOtherAssets
dei:LegalEntity

us-gaap:IncomeLossFromEquityMethodInvestments
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:UnusualOrInfrequentItem
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:StatementBusinessSegments, us-gaap:UnusualOrInfrequentItem
dei:LegalEntity
us-gaap:IncreaseDecreaseInAccountsPayableRelatedParties
dei:LegalEntity
us-gaap:IncreaseDecreaseInAccountsReceivableRelatedParties

us-gaap:IncreaseDecreaseInAccruedTaxesPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherCurrentAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInReceivables
dei:LegalEntity

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:OriginationOfNotesReceivableFromRelatedParties

us-gaap:OtherAssetImpairmentCharges
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
dei:LegalEntity

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
dei:LegalEntity
dei:LegalEntity
us-gaap:PaymentsOfDistributionsToAffiliates

us-gaap:PaymentsOfOrdinaryDividends

us-gaap:PaymentsToAcquireInterestInSubsidiariesAndAffiliates
us-gaap:StatementScenario, us-gaap:StatementClassOfStock
us-gaap:PreferredStockDividendRatePercentage
us-gaap:StatementClassOfStock
us-gaap:PreferredStockDividendsPerShareDeclared
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity
us-gaap:ProceedsFromContributionsFromParent
us-gaap:TaxCreditCarryforward
us-gaap:ProceedsFromIncomeTaxRefunds

us-gaap:ProceedsFromIssuanceOfCommonStock
us-gaap:ForwardContractIndexedToIssuersEquityType
us-gaap:ProceedsFromIssuanceOrSaleOfEquity

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
dei:LegalEntity
dei:LegalEntity
us-gaap:ProceedsFromRepaymentsOfRelatedPartyDebt

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments
dei:LegalEntity

us-gaap:ProvisionForDoubtfulAccounts
dei:LegalEntity

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesApprovedDebtCapitalStructurePercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesApprovedEquityCapitalStructurePercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
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:Range, us-gaap:FinancialInstrument, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:Range, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
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dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesRequestedEquityCapitalStructurePercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
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dei:LegalEntity, us-gaap:RegulatoryAgency
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:PublicUtilitiesRequestedRateIncreaseDecreasePercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesRequestedReturnOnEquityPercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType

us-gaap:RegulatedOperatingRevenueElectricNonNuclear
dei:LegalEntity

us-gaap:RegulatedOperatingRevenueGas
dei:LegalEntity
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:ReinsuranceRetentionPolicyExcessRetentionAmountReinsured
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty
dei:LegalEntity
us-gaap:RepaymentOfNotesReceivableFromRelatedParties
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:RepaymentsOfDebt

us-gaap:RestructuringCostsAndAssetImpairmentCharges
us-gaap:IncomeStatementLocation

us-gaap:RevenueNotFromContractWithCustomer
dei:LegalEntity
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues

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

us-gaap:TaxesExcludingIncomeAndExciseTaxes
dei:LegalEntity

us-gaap:UnrealizedGainLossOnDerivatives
dei:LegalEntity
us-gaap:Range, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:UnusualOrInfrequentItemLossGross

us-gaap:UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:UnusualOrInfrequentItem
us-gaap:UnusualOrInfrequentItem
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:VariableInterestEntityOwnershipPercentage
dei:LegalEntity, us-gaap:PublicUtility
duk:AccidentalOutageInsurancePolicyLimit
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
duk:AllocatedAssetsOfInvestments

duk:AllowanceforDoubtfulAccountsandOtherReceivablesCurrent
dei:LegalEntity
us-gaap:CounterpartyName
us-gaap:ConsolidatedEntities, us-gaap:StatementBusinessSegments
duk:CapacityOfAssets
dei:LegalEntity, us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
duk:CashAndCashEquivalentInvestments
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization

duk:CumulativePayablesSold
dei:LegalEntity

duk:DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNI
dei:LegalEntity
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization

duk:DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNIUnrealizedGain
dei:LegalEntity
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization

duk:DebtSecuritiesAvailableforsaleandEquitySecuritiesFVNIUnrealizedLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:PublicUtility
duk:Dedicatedadditionalnuclearaccidentlimit

duk:DeferredTaxAssetsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumed

duk:DeferredTaxAssetsCapitalLeaseObligations
dei:LegalEntity
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
duk:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxDeferredIncomeTaxAssets
us-gaap:RetirementPlanType
duk:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxDeferredIncomeTaxLiability
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
duk:EquityMethodInvestmentLineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
duk:EquityMethodInvestmentVotingRightsOwnershipPercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:EquityReturnOnDeferredCoalAshCostFutureCases
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:SubsequentEventType
dei:LegalEntity
duk:EquitySecuritiesFVNIAccumulatedUnrealizedGain
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
duk:EquitySecuritiesFVNIAccumulatedUnrealizedLoss
us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:EstimatedStormCostsCapitalandOperationMaintenance
us-gaap:SubsequentEventType

duk:ExcessNuclearLiabilityCoverage

duk:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsDeferredGainsOrLossesAsRegulatoryAssetOrLiability
dei:LegalEntity

duk:FirstMortgageBonds
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation
duk:GasStorage

duk:GenerationFacilitiesToBeRetiredNet
dei:LegalEntity

duk:GuaranteeUnusedLettersOfCredit
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:BalanceSheetLocation, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
duk:GuarantorObligationsSettled

duk:InsurancePublicLiabilityInExcessOfInsurance

duk:InsurancePublicLiabilityInExcessOfInsuranceAnnualPaymentLimit

duk:InsurancePublicLiabilityLimit

duk:InsuranceSublimitAccidentalOutageRecovery

duk:InsuranceSublimitNonnuclearTerroristEvents
dei:LegalEntity, us-gaap:PublicUtility
duk:InsuranceSublimitPropertyDamageLosses
us-gaap:RelatedPartyTransactionsByRelatedParty
duk:InvestmentOwnedLoanedAtFairValue

duk:LeaseLiability
dei:LegalEntity

duk:LeaseRightOfUseAssets
dei:LegalEntity
dei:LegalEntity
duk:LimitofTotalCapital

duk:LongTermDebtExcludingPurchaseAccountingAdjustments
dei:LegalEntity
us-gaap:GuaranteeObligationsByNature
duk:MaximumPotentialOfFutureAmountsAssociatedWithGuaranteesWithExpirationDates
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType
duk:NoncontrollingInterestOwnershipPercentageSold

duk:NotesPayableAndCommercialPaper
dei:LegalEntity, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
duk:NumberofSolarPlantsPetitionforApproval

duk:OtherOperatingLeaseLiabilityNoncurrent
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType
duk:OwnershipInterestSold

duk:PayablesSoldBySuppliers
dei:LegalEntity
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
duk:Percentofproceedsreceivedascash
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
duk:Percentofproceedsreceivedassubordinatednote
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
duk:PlantsRolledIntoBaseRate
dei:LegalEntity
duk:PrimaryNuclearLiabilityCoverage
dei:LegalEntity, us-gaap:Range, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
duk:PublicUtilitiesEstimatedCapitalCostExcludingAFUDC
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:PublicUtilitiesEstimatedStormCostsCapitalAndOperationMaintenance
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:PublicUtilitiesRegulatoryAssetAmountOfRecoveryCostsNotSought
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:PublicUtilitiesSharedSavingsCap
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:PublicUtilitiesSolarGenerationCapacityPlantsInMegawatts
dei:LegalEntity, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
duk:PublicUtilitiesStormCostsCapitalAndOperationMaintenance
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
duk:ReceivableTurnoverRate
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
duk:ReceivablesToMaintainMinimumEquityBalance
dei:LegalEntity
duk:RequiredEquityCapitalStructurePercent
us-gaap:AwardType
duk:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVest
us-gaap:AwardType
duk:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestWeightedAverageGrantDateFairValue
us-gaap:AwardType
duk:ShareBasedCompensationGrantsInPeriodFairValue

duk:Sharedadditionalnuclearaccidentlimit

duk:ShortTermObligationsClassifiedAsLongTermDebt
dei:LegalEntity
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:DebtInstrument
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
duk:SolarGenerationCapacityPlantsinMegawatts
dei:LegalEntity, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
duk:StormDeferralRequestedSupplementalTrueUp
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType

duk:TradeAndOtherReceivablesDeferred
dei:LegalEntity

duk:TradeandOtherReceivables
dei:LegalEntity

duk:TradeandOtherReceivablesNotPastDue
dei:LegalEntity
dei:LegalEntity, us-gaap:FinancingReceivablesPeriodPastDue
duk:TradeandOtherReceivablesPastDue
us-gaap:FinancingReceivablesPeriodPastDue

duk:UnamortizedDeferredSeverance
dei:LegalEntity

duk:UnsecuredVariableDenominationFloatingRateDemandNotesMaximumAmountOutstanding

duk:UnsecuredVariableDenominationFloatingRateDemandNotesPrincipalAmountOutstanding
us-gaap:CounterpartyName
duk:VariationInCreditLosses
us-gaap:CounterpartyName
duk:VariationInDiscountRates

us-gaap:AccountsAndOtherReceivablesNetCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:AccountsReceivableFromSecuritization
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:AccrualForEnvironmentalLossContingencies
dei:LegalEntity

us-gaap:AccumulatedDeferredInvestmentTaxCredit
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

us-gaap:AdditionalCollateralAggregateFairValue
dei:LegalEntity

us-gaap:AllowanceForDoubtfulAccountsReceivable
dei:LegalEntity
dei:LegalEntity
us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity, us-gaap:CounterpartyName
us-gaap:CounterpartyName

us-gaap:AssetRetirementObligation
dei:LegalEntity
dei:LegalEntity, duk:AROBalanceCategory
duk:AROBalanceCategory

us-gaap:AssetRetirementObligationCurrent
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:BalanceSheetLocation, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue
dei:LegalEntity

us-gaap:AssetRetirementObligationsNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:AssetsFairValueDisclosure
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:AssetsNet
dei:LegalEntity, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
dei:LegalEntity, us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
dei:LegalEntity, us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
dei:LegalEntity

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
dei:LegalEntity

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
dei:LegalEntity

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
dei:LegalEntity

us-gaap:AvailableForSaleSecuritiesDebtSecurities
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentSecondaryCategorization
us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentSecondaryCategorization
us-gaap:CashAndCashEquivalentsFairValueDisclosure
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentSecondaryCategorization
us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
us-gaap:ContractWithCustomerAssetNetNoncurrent
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:ContractWithCustomerRefundLiabilityCurrent

us-gaap:DebtInstrumentFaceAmount
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentRepurchaseAmount

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:DebtInstrument

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
dei:LegalEntity
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument

us-gaap:DebtWeightedAverageInterestRate
us-gaap:DebtInstrument

us-gaap:DecommissioningFundInvestments
dei:LegalEntity

us-gaap:DecommissioningLiabilityNoncurrent
dei:LegalEntity
us-gaap:UnusualOrInfrequentItem
us-gaap:DeferredCostsCurrentAndNoncurrent

us-gaap:DeferredCreditsAndOtherLiabilities
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:DeferredIncomeTaxAssetsNet
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:DeferredIncomeTaxLiabilities
dei:LegalEntity

us-gaap:DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent
dei:LegalEntity
dei:LegalEntity
us-gaap:DeferredTaxAssetsInvestments

us-gaap:DeferredTaxAssetsOther
dei:LegalEntity
dei:LegalEntity
us-gaap:DeferredTaxAssetsRegulatoryAssetsAndLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpense

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxDeferredExpenseOther
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesInvestments
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesRegulatoryAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:Range, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:DerivativeAssetFairValueGrossLiability
us-gaap:BalanceSheetLocation
dei:LegalEntity, us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:ValuationTechnique
us-gaap:DerivativeAssetLiabilityNetMeasurementInput
dei:LegalEntity, us-gaap:Range, us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique
us-gaap:Range, us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique

us-gaap:DerivativeAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentSecondaryCategorization
dei:LegalEntity, us-gaap:InvestmentSecondaryCategorization
us-gaap:BalanceSheetLocation
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:DerivativeLiabilities
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:BalanceSheetLocation
us-gaap:FairValueByFairValueHierarchyLevel
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:DerivativeLiabilityFairValueGrossAsset
us-gaap:BalanceSheetLocation

us-gaap:DerivativeNetLiabilityPositionAggregateFairValue
dei:LegalEntity
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity
us-gaap:DueFromRelatedPartiesCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:DueToRelatedPartiesCurrent
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:BalanceSheetLocation
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EnergyRelatedInventoryCoal
dei:LegalEntity

us-gaap:EnergyRelatedInventoryOtherFossilFuel
dei:LegalEntity
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments

us-gaap:EquityMethodInvestments
dei:LegalEntity
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:FairValueNetAssetLiability
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByAssetClass, us-gaap:ValuationTechnique
dei:LegalEntity, us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique
us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique

us-gaap:FinanceLeaseLiability
dei:LegalEntity
dei:LegalEntity, us-gaap:DebtInstrument

us-gaap:FinanceLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueInRollingYearFive
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueInRollingYearFour
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueInRollingYearThree
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueInRollingYearTwo
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity

us-gaap:FinanceLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization
dei:LegalEntity
us-gaap:PublicUtilityRegulatedOrUnregulatedStatus

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization
dei:LegalEntity

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
dei:LegalEntity
dei:LegalEntity, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
dei:LegalEntity
dei:LegalEntity, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ForwardContractIndexedToIssuersEquityType
us-gaap:ForwardContractIndexedToIssuersEquityIndexedShares
us-gaap:StatementScenario, us-gaap:ForwardContractIndexedToIssuersEquityType
us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue

us-gaap:GoodwillGross

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss
dei:LegalEntity
us-gaap:StatementBusinessSegments
us-gaap:BalanceSheetLocation
us-gaap:GuaranteeObligationsCurrentCarryingValue
dei:LegalEntity, us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:GuaranteeObligationsByNature, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:GuaranteeObligationsByNature
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:IncomeTaxesReceivable
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:InterestPayableCurrent
dei:LegalEntity

us-gaap:InterestRateDerivativesAtFairValueNet
dei:LegalEntity

us-gaap:InvestmentsAndOtherNoncurrentAssets
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantProportionateOwnershipShare
us-gaap:JointlyOwnedUtilityPlant
us-gaap:PublicUtility, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CreditFacility
us-gaap:LettersOfCreditOutstandingAmount
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility
us-gaap:CreditFacility

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LiabilityForAsbestosAndEnvironmentalClaimsGross
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility
us-gaap:CreditFacility

us-gaap:LongTermDebtFairValue
dei:LegalEntity
dei:LegalEntity, 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:ConsolidatedEntities, us-gaap:CreditFacility
us-gaap:LongtermCommercialPaperCurrentAndNoncurrent
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:CreditFacility

us-gaap:LongtermPollutionControlBondCurrentAndNoncurrent
dei:LegalEntity
us-gaap:CreditFacility

us-gaap:LossContingencyAccrualAtCarryingValue
dei:LegalEntity
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyReceivableNoncurrent
dei:LegalEntity
us-gaap:MembersCapital
dei:LegalEntity
us-gaap:MembersEquity
dei:LegalEntity, us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:RelatedPartyTransaction
us-gaap:NetInvestmentInLeaseCurrent
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:RelatedPartyTransaction
us-gaap:NetInvestmentInLeaseNoncurrent
dei:LegalEntity
us-gaap:NotesPayableRelatedPartiesClassifiedCurrent
dei:LegalEntity
us-gaap:NotesPayableRelatedPartiesCurrentAndNoncurrent
dei:LegalEntity
us-gaap:NotesPayableRelatedPartiesNoncurrent
dei:LegalEntity
us-gaap:NotesReceivableRelatedPartiesCurrent
us-gaap:BalanceSheetLocation
us-gaap:OffBalanceSheetCreditLossLiability

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:OtherAccruedLiabilitiesCurrentAndNoncurrent
us-gaap:BalanceSheetLocation

us-gaap:OtherLoansPayable
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:RetirementPlanType
us-gaap:StatementScenario
us-gaap:PreferredStockRedemptionPricePerShare
us-gaap:StatementClassOfStock
us-gaap:PreferredStockValue
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:PrepaidExpenseCurrentAndNoncurrent

us-gaap:PublicUtilitiesInventory
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtilitiesInventory
us-gaap:PublicUtilitiesInventory

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
dei:LegalEntity
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentEquipment
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentFuel
us-gaap:PublicUtility
us-gaap:PublicUtility, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentLand
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet
dei:LegalEntity
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:PublicUtility
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus
us-gaap:PublicUtility, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService
dei:LegalEntity
us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution
us-gaap:PublicUtility, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus

us-gaap:RegulatoryAssets

us-gaap:RegulatoryAssetsCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:CounterpartyName

us-gaap:RegulatoryAssetsNoncurrent

us-gaap:RegulatoryLiabilities

us-gaap:RegulatoryLiabilityCurrent
dei:LegalEntity

us-gaap:RegulatoryLiabilityNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:RelatedPartyTransactionDueFromToRelatedPartyCurrent
dei:LegalEntity, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:RestrictedCashAndCashEquivalentsNoncurrent
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:RestructuringAndRelatedCostExpectedCost1

us-gaap:RestructuringReserve
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility
dei:LegalEntity
us-gaap:RevenueRemainingPerformanceObligation

us-gaap:SecuredDebt
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
us-gaap:SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:ShortTermBorrowings

us-gaap:TaxCreditCarryforwardAmount
dei:LegalEntity
us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward
us-gaap:TaxCreditCarryforward

us-gaap:UnamortizedDebtIssuanceExpense
dei:LegalEntity
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument

us-gaap:UnbilledReceivablesCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:CounterpartyName

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
dei:LegalEntity
dei:LegalEntity, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary
dei:LegalEntity, us-gaap:OtherCommitments
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
dei:LegalEntity, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
dei:LegalEntity, us-gaap:OtherCommitments
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
dei:LegalEntity, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary
dei:LegalEntity, us-gaap:OtherCommitments
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
dei:LegalEntity, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
dei:LegalEntity, us-gaap:OtherCommitments
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
dei:LegalEntity, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary
dei:LegalEntity, us-gaap:OtherCommitments
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
dei:LegalEntity, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
dei:LegalEntity, us-gaap:OtherCommitments
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
dei:LegalEntity, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears
dei:LegalEntity, us-gaap:OtherCommitments
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased

us-gaap:UnsecuredDebt
dei:LegalEntity

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Income Tax Expense Benefit
Balance Sheet
Finite Lived Intangible Assets Net
Assets
Derivative Assets
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Finite Lived Intangible Assets Net
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Derivative Liabilities
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Pension And Other Postretirement Defined Benefit Plans Liabilities 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 Share Outstanding Basic And Diluted
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Other Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 us-gaap:CommonStockValue dei:LegalEntity duk:PiedmontNaturalGas██▅▅▅▅▅▅▅▄▄▄▄▁▁▁▁▁▁1635.01635.01310.01310.01310.01310.01310.01310.01310.01160.01160.01160.01160.0860.0860.0860.0860.0860.0860.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:SharesIssued us-gaap:ForwardContractIndexedToIssuersEquityType duk:EquityForwardsNANA32.0NANANA3.8NANANA10.6NA10.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CommonStockSharesAuthorized dei:LegalEntity duk:DukeEnergyOhio▄▄▄120.0120.0120.0NA120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.089.663086NA120.0120.0120.0120.0120.0120.0NANANA120.0NANANA
 us-gaap:CommonStockSharesAuthorized dei:LegalEntity duk:PiedmontNaturalGas▄▄▄100.0100.0100.0NA0.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.0001NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesOutstanding ▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁██████769.0769.0769.0736.0735.0735.0733.0729.0728.0728.0727.0713.0712.0701.0700.0700.0700.0700.0700.0689.0689.0689.0688.0688.0688.0708.0707.0707.0707.0707.0706.0706.0706.0706.0704.0704.0446.01338.01336.01332.01332.01331.01329.0NANANA1309.0NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▄▄769.0769.0NA735.0735.0736.0NA729.0728.0727.0NA714.0704.0701.0NA700.0700.0700.0NA691.0690.0689.0NA688.0692.0708.0NA707.0707.0706.0NA706.0706.0705.0NA699.0446.01337.0NA1333.01333.01331.0NA1322.01314.01311.0NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▄▄769.0769.0NA735.0735.0734.0NA729.0728.0727.0NA713.0703.0701.0NA700.0700.0700.0NA689.0689.0689.0NA688.0692.0708.0NA707.0707.0706.0NA706.0706.0705.0NA699.0446.01337.0NA1332.01332.01330.0NA1320.01314.01310.0NANANANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NANANA735.0NANANA729.0NA727.0NANANA701.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▄▄2.02.0NA2.02.02.0NA2.02.02.0NA2.02.02.0NA2.02.02.0NA2.02.02.0NANANANANANANA2.0NANANA1.0NANANA4.0NANANA13.0NANANA18.0NANANANA
us-gaap:EarningsPerShareBasic ▁█0.961.25NANA-1.131.24NA1.82NANA0.651.510.710.881.01.360.981.02-0.331.70.741.010.691.350.781.220.141.80.86-0.140.971.420.480.890.620.850.990.220.220.350.330.380.320.51-0.170.340.260.080.210.27
us-gaap:EarningsPerShareDiluted ▁█0.961.25NANA-1.131.24NA1.82NANA0.651.510.710.881.01.360.981.02-0.331.70.741.010.691.350.781.220.141.80.86-0.140.971.420.480.890.620.850.990.220.220.350.330.380.320.51-0.170.340.260.080.210.27
us-gaap:EarningsPerShareBasicAndDiluted NANA-0.130000000000000121.74-1.131.240.881.821.121.240.651.510.710.88NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 COGS Ratio dei:LegalEntity duk:DukeEnergyFlorida▁█2.08.0NANA-21.030.034.032.031.036.031.032.028.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio dei:LegalEntity duk:DukeEnergyIndiana▁█5.08.0NA-1.04.0NA9.0-1.05.04.013.010.016.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio dei:LegalEntity duk:DukeEnergyProgress█▁25.015.0NA14.021.021.059.037.035.041.036.035.046.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio dei:LegalEntity duk:PiedmontNaturalGas█▁18.08.0NA18.010.051.027.011.012.09.010.010.010.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio dei:LegalEntity duk:ProgressEnergy█▁32.026.0NA18.026.055.095.075.070.079.069.068.079.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio dei:LegalEntity duk:DukeEnergyFlorida▁█▆2.08.06.0NA-21.030.034.032.031.036.031.032.028.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio dei:LegalEntity duk:DukeEnergyIndiana▅▇█▁▄5.08.09.0-1.04.0NA9.0-1.05.04.013.010.016.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio dei:LegalEntity duk:DukeEnergyProgress▃▁▂▁▂▂█▅▄▅▄▄▆25.015.018.014.021.021.059.037.035.041.036.035.046.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio dei:LegalEntity duk:PiedmontNaturalGas▃▁▇▃▁█▄▁▂▁▁▁▁18.08.045.018.010.051.027.011.012.09.010.010.010.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio dei:LegalEntity duk:ProgressEnergy▂▂▂▁▂▄█▆▆▇▆▆▇32.026.028.018.026.055.095.075.070.079.069.068.079.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin dei:LegalEntity duk:DukeEnergyFlorida▁█▆2.08.06.0NA-21.030.034.032.031.036.031.032.028.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin dei:LegalEntity duk:DukeEnergyIndiana▅▇█▁▄5.08.09.0-1.04.0NA9.0-1.05.04.013.010.016.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin dei:LegalEntity duk:DukeEnergyProgress▃▁▂▁▂▂█▅▄▅▄▄▆25.015.018.014.021.021.059.037.035.041.036.035.046.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin dei:LegalEntity duk:ProgressEnergy█▁32.026.0NA18.026.055.0NA75.070.079.069.068.079.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Net profit Margin dei:LegalEntity duk:ProgressEnergy▂▂▂▁▂▄█▆▆▇▆▆▇32.026.028.018.026.055.095.075.070.079.069.068.079.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity duk:DukeEnergyFlorida▁█▆2.08.06.0NA-21.030.034.032.031.036.031.032.028.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity duk:DukeEnergyIndiana▅▇█▁▄5.08.09.0-1.04.0NA9.0-1.05.04.013.010.016.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity duk:DukeEnergyProgress▃▁▂▁▂▂█▅▄▅▄▄▆25.015.018.014.021.021.059.037.035.041.036.035.046.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity duk:PiedmontNaturalGas▃▁▇▃▁█▄▁▂▁▁▁▁18.08.045.018.010.051.027.011.012.09.010.010.010.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity duk:ProgressEnergy▂▂▂▁▂▄█▆▆▇▆▆▇32.026.028.018.026.055.095.075.070.079.069.068.079.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 TTM Greenblatt ROC _ _▅▆▁▇▅▆▅█▆▆▄▆▄▅▅▇▆▆▄█▅▆▄▇▅▆▄▇▅▁▅▇▄▅▄▅▄▃▃▄▃▄▃▅▁▄▃1169.01450.074.01814.01177.01488.01109.01929.01298.01373.0871.01579.0979.01256.01262.01695.01387.01437.0888.02022.01145.01333.0977.01688.01246.01456.0988.01619.01116.058.01203.01743.0821.01215.0767.01078.0786.0495.0517.0767.0679.0814.0681.01033.0-14.0761.0595.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▆▇▃█▁▆▆█▆▇▅▇▅▆▆▇▆▆▅█▅▆▅▆▆▆▄█▆▃▆▇▄▆▅▆▅▅▄▄▅677.01011.0-144.01224.0-792.0836.0683.01312.0800.0888.0438.01086.0498.0631.0716.0956.0689.0724.0401.01172.0558.0734.0449.0802.0567.0735.010.01173.0631.0-75.0669.01000.0252.0651.0469.0574.0298.0355.0242.0195.0494.0NANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▂▄▁▂▁▃▃▆▁▇▇▆██████████-68.0-44.0-86.0-70.0-88.0-62.0-67.0-19.0-84.0-7.0-10.0-16.02.02.00.01.03.01.04.04.06.06.0NA-2.03.0-1.06.0-1.04.05.02.04.0-1.0NA2.04.00.0NA3.0-13.09.0NANANANANANANANANA
 us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest dei:LegalEntity duk:ProgressEnergyNANA0.01.0NANANANA1.0-1.00.02.02.02.03.02.03.02.02.03.02.03.03.03.02.03.03.01.00.01.01.01.0NANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▇▃█▁▆▆█▆▇▅▇▅▆▆▇▆▆▅█▆▆▅▆▆▆▄█▆▄▆▇▅▆▅▆▅▅▅▄▅▆▆▆▃▅609.0967.0-123.01154.0-880.0813.0630.01308.0728.0881.0428.01070.0500.0633.0716.0957.0692.0725.0405.01176.0564.0740.0453.0800.0570.0734.016.01172.0635.0-70.0671.01004.0251.0651.0471.0578.0298.0359.0245.0182.0503.0541.0725.0765.0-234.0440.0NANANANA
us-gaap:CostDepreciationAmortizationAndDepletion ████▇▆▇▇▆▆▆▅▃▃▃▂▁1207.01226.01208.01217.01150.01130.01184.01186.01089.01089.01095.01039.0973.0967.0933.0900.0835.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity duk:DukeEnergyCarolinas▁█344.0422.0NA497.0376.0453.0433.0504.0395.0472.0451.0490.0407.0473.0428.0531.0435.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity duk:DukeEnergyFlorida█▁424.0359.0NA551.0382.0358.0483.0610.0509.0410.0518.0614.0486.0467.0434.0557.0455.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity duk:DukeEnergyIndiana▁█201.0217.0NA222.0161.0194.0215.0234.0229.0257.0270.0272.0226.0232.0222.0259.0234.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity duk:DukeEnergyProgress▁█409.0436.0NA537.0395.0405.0441.0577.0479.0515.0440.0535.0408.0509.0395.0475.0375.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity duk:PiedmontNaturalGas▁█63.0225.0NA39.053.0162.0148.046.065.0273.0197.054.074.0259.0191.063.065.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity duk:ProgressEnergy█▁833.0795.0NA1088.0777.0763.0924.01187.0988.0925.0957.01148.0895.0976.0829.01031.0831.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService duk:DukeEnergyOhio,srt:NaturalGasReserves▁█16.051.0NA3.06.037.027.04.010.054.040.04.015.054.038.05.010.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService duk:DukeEnergyOhio,us-gaap:Electricity█▁93.082.0NA94.077.087.0NA114.086.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService srt:NaturalGasReserves▁█79.0276.0NA41.059.0199.0176.048.076.0327.0237.058.089.0313.0230.068.076.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Electricity▁█1415.01443.0NA1849.01349.01447.0NA1978.01641.01609.0NA1931.01574.01676.0NA1863.01541.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▄▅▆▅▄▄▅▅▄▅▆▅▄▅▄▅▄▄▃▅▄▄▄▅▄▄▄▅▅█▅▅▅▅▅▆▁▂▁▂▁▁▁▁▂▁4591.04700.05703.04909.04251.04462.04990.05011.04578.04787.05242.05059.04667.04779.04541.04793.04175.04303.03982.04805.04344.04298.04349.04799.04356.04623.04576.04780.04839.06567.04890.04966.05059.04685.04923.05658.02795.03138.02850.03192.02859.02859.02908.02915.03306.02835.0NANANANA
us-gaap:IncomeLossFromContinuingOperations ▆▇▃█▁▇▆█▆▇▅▇▅▆▆▇▆▆▅▇▅▆▅▇▆▆▄▇▆▆▆▇▅▆751.0953.0-84.01265.0-817.0899.0667.01327.0820.0900.0444.01078.0505.0620.0705.0956.0688.0716.0316.01054.0510.0691.0486.0937.0600.0773.095.0888.0722.0746.0684.0942.0342.0634.0NANA449.0297.0NANA441.0513.0NANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▇▃▇▁▇▆█▆▇▅▇▆▆▆▇▇▇▅█▆▆▆▇▆▇▆▇▆▃▇█▅▆▅▆▆▅▅▆▆▆▆▆734.01025.0-319.01339.0-1208.01027.0709.01511.0889.0988.0433.01230.0607.0803.0866.01321.01018.01061.0494.01579.0752.0909.0699.01360.0938.01140.0686.01351.0825.0-217.0995.01451.0510.0964.0546.0842.0663.0400.0409.0677.0633.0746.0674.0967.0NANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▄▄▂▄▁▅▄▅▅▄▃▅▄▅▅▆▆▆▅▇▅▅▅▇▆▆█▇▅▂▆▇▅▆▅▅▅▄▄▅▅▅▅▆▄▅36.084.0-162.0105.0-316.0137.095.0188.0141.095.0-1.0168.0100.0181.0161.0364.0327.0344.0184.0520.0239.0213.0208.0420.0334.0364.0588.0460.0209.0-127.0309.0457.0165.0330.0140.0248.0214.0103.0119.0208.0192.0233.0247.0301.0116.0226.0NANANANA
us-gaap:InterestExpense █▇▇▇████▇▇▇▇▇▇▇▇▆▆▅▆▇▇▅▅▅▅▅▅▅▅▅▄▄▄▄▅▂▁▁▁▁▁▁▁▁▁572.0535.0535.0522.0554.0551.0547.0572.0542.0543.0544.0517.0518.0515.0511.0498.0486.0491.0423.0482.0500.0511.0405.0402.0403.0403.0410.0405.0413.0406.0419.0379.0381.0367.0385.0401.0232.0224.0224.0213.0203.0219.0216.0202.0212.0210.0NANANANA
us-gaap:NetIncomeLoss ▆▇▃█▁▇▆█▆▇▅▇▅▆▆▇▆▆▃█▅▆▅▇▅▆▄█▆▃▆▇▅▆▅▆▅▅▅▅▅▅▅▆▃▅▅▄▅▅765.0992.0-63.01304.0-802.0938.0701.01327.0820.0900.0464.01082.0500.0620.0703.0954.0686.0716.0-227.01176.0509.0694.0477.0932.0543.0864.097.01274.0609.0-97.0688.01004.0339.0634.0435.0594.0444.0295.0288.0472.0435.0511.0427.0670.0-222.0445.0346.0109.0276.0344.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▁▃█▁▁▁▁▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂-67.051.0503.0-70.0-90.0-48.0-67.0-19.0-84.0-7.0-10.0-16.02.02.00.01.03.01.05.05.03.05.05.03.04.03.03.0-5.04.04.04.04.03.00.02.04.04.04.02.0-2.06.02.02.0-4.05.0NANANANANA
 us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity duk:ProgressEnergyNANA0.01.00.0NANA0.01.0-1.00.02.02.02.03.02.03.02.02.03.02.03.03.03.02.03.03.01.00.01.01.01.00.01.02.02.01.02.0NANANANANANANANANANANANA
 us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:UnusualOrInfrequentItem us-gaap:OperatingSegments,duk:CommercialRenewables,duk:TexasStormUriNA-12.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▆▇▃█▁▇▆█▆▇751.0953.0-77.01265.0-817.0899.0660.01327.0820.0900.0NANANANANANANANANANANANANANANANANANANANANANANA634.0NANANANANANANANANANANANANANANANA
us-gaap:NonoperatingIncomeExpense ███▇▁████████▇█████▇██████████████████████████137.0110.0142.047.0-1831.090.0147.0154.0133.0158.0106.0168.0146.062.0115.0124.0117.0115.076.039.0107.087.0127.074.095.087.0108.0137.0122.0131.0211.087.070.0116.0164.0165.0109.0129.0116.0123.0157.0151.0209.0136.0124.0120.0NANANANA
us-gaap:OperatingIncomeLoss ▅▆▁▇▅▆▅█▆▆▄▆▄▅▅▇▆▆▄█▅▆▄▇▅▆▄▇▅▁▅▇▄▅▄▅▄▃▃▄▃▄▃▅▁▄▃▃▃▃1169.01450.074.01814.01177.01488.01109.01929.01298.01373.0871.01579.0979.01256.01262.01695.01387.01437.0888.02022.01145.01333.0977.01688.01246.01456.0988.01619.01116.058.01203.01743.0821.01215.0767.01078.0786.0495.0517.0767.0679.0814.0681.01033.0-14.0761.0595.0445.0528.0681.0
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▂▃▃▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂█▂▃▃▂▁▃▁▂▁▃▃▂▂▂▃▃▂▁▃-89.026.027.0-80.012.0-77.023.0-15.0-20.0-12.0-26.04.0-2.011.013.02.03.08.0627.0-5.052.041.0-29.0-135.023.0-133.0-84.0-97.022.023.0-21.0-4.0-91.017.034.0-20.0-150.060.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity duk:DukeEnergyFlorida█▃▁█▃█▃█▆█▆▆▃▆▆███▃█▆█1.0-1.0-2.01.0-1.01.0-1.01.00.01.00.00.0-1.00.00.01.01.01.0-1.01.00.01.0NANANANA0.00.00.01.00.0-1.0NANA1.026.0NA1.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity duk:ProgressEnergy2.0NA-2.02.01.02.00.02.03.03.04.02.02.02.01.02.07.03.02.02.03.03.0-7.00.01.0-1.010.03.04.02.00.04.02.02.0-1.098.0-4.05.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents duk:DukeEnergyFlorida,us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss█▃▁█▃█▃█▆█▆▆▃1.0-1.0-2.01.0-1.01.0-1.01.00.01.00.00.0-1.0NA0.01.01.01.0-1.01.00.01.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents duk:ProgressEnergy,us-gaap:AccumulatedDefinedBenefitPlansAdjustment1.0NA-2.00.01.0NA0.00.01.01.03.00.02.0NA-1.03.01.01.0-1.00.01.01.0-9.0-3.01.01.07.01.00.01.04.04.00.01.0-2.0-1.00.01.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents duk:ProgressEnergy,us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▁▄█▄▄▄▄▄▄█▄█▄█0.01.02.01.01.01.01.01.01.02.01.02.01.02.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents duk:ProgressEnergy,us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss█▃▁█▃█▃██1.0-1.0-2.01.0-1.01.0-1.01.01.0NA0.00.0-1.0NA1.01.01.01.0-1.01.00.01.00.00.0NANA0.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents duk:ProgressEnergy,us-gaap:Parent2.0NA-2.02.01.02.00.02.03.03.04.02.02.02.01.02.07.03.02.02.03.03.0NANANA-1.010.03.03.02.00.04.02.02.0-1.098.0-4.05.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustment▂▄▆▃▂▃█▁▄0.02.05.01.0-1.01.08.0-2.03.0NA-9.01.01.01.01.00.01.01.0-13.00.0NANA-12.0-3.07.0-5.03.0NANA-1.033.00.02.03.034.0-21.02.04.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▁██▂▇▃█▆▅▆▅▇▆▇-92.025.023.0-79.05.0-65.017.0-15.0-27.0-16.0-19.03.0-1.013.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▇▁▄▄█▆▄▆▇▇▆▅▄▄▆▆▇▇▂▅▆▇▄▄4.0-8.0-2.0-2.06.01.0-2.02.04.04.02.00.0-2.0-3.03.02.04.04.0-5.00.03.04.0-1.0-2.0NANA1.00.0NANA2.02.0NANA0.03.0NANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest▅█▆▆▆▁-1.07.01.00.02.0-14.0NANANANANANANANANANANANA-1.0-1.03.01.0-1.0-5.0-1.0-4.03.04.00.01.0-2.00.0NANA0.00.0NANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:Parent▂▂▃▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂█▂▃▃▂▁▃▁▂▁▃▃▂▂▂▂▃▂▁▃-88.019.026.0-80.010.0-63.023.0-15.0-20.0-12.0-26.04.0-2.011.013.02.03.08.0628.0-4.049.040.0-28.0-130.024.0-129.0-87.0-101.022.022.0-19.0-4.0-87.017.034.0-20.0-146.060.0NANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense █████▇████▇█████▇█▇██▇█▇▇▇▇███▇▇▇▇██▇█▇▇█▆▁██▆128.0127.0143.0127.0137.046.0122.0104.089.0115.072.0131.0110.086.097.088.081.086.054.099.092.079.0104.057.072.074.058.0109.089.095.080.054.054.080.0106.0132.070.089.079.083.097.0-117.0-667.0116.088.0-91.0NANANANA
us-gaap:PreferredStockDividendsIncomeStatementImpact ▂█▂█▂█▂▂▁14.039.014.039.015.039.014.015.012.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▆▇▃█▁▇▆█▆▇▅▇▅▆▆▇▆▆▃█▅▆▅▇▆▇▄█▆▄▆▇▅▆▅▆▅▅▅▅▅▅▅▆▃▅698.0941.0-150.01234.0-892.0890.0607.01323.0748.0893.0454.01066.0502.0622.0703.0955.0689.0717.0-222.01181.0512.0699.0482.0935.0547.0867.0100.01269.0613.0-93.0692.01008.0342.0634.0437.0598.0448.0299.0290.0470.0441.0513.0429.0666.0-217.0445.0NANANANA
us-gaap:RegulatedAndUnregulatedOperatingRevenue ▆▇▆█▅▆▇█▆▇▇▇▆▇▆▇▆▆▆▇▅▅▅▇▆▆▆▇▆▇▇█▆▆▆█▂▂▂▃▂▂▂▃▂▂▁▂▁▂5758.06150.05777.06721.05421.05949.06103.06940.05873.06163.06115.06628.05643.06135.05799.06482.05555.05729.05577.06576.05213.05377.05322.06483.05589.06065.05559.06395.05949.06624.06112.06709.05879.05898.05695.06722.03577.03630.03368.03964.03534.03663.03445.03946.03287.03594.03110.03396.02913.03312.0
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax ▆▇▆█▅▆▇█▆▇▇▇▆▆▆▇▆▆▆█▅▆▅▇▆▇▆▇▆█▇█▆▆▆█▂▂▂▃▂▂▂▃▂▂▁▂▁▂5667.06094.05663.06658.05338.05800.06103.06792.05695.05998.06115.06451.05467.05928.05799.06482.05555.05729.05577.06821.05213.05622.05322.06483.05589.06065.05559.06395.05949.06624.06112.06709.05879.05898.05695.06722.03577.03630.03368.03964.03534.03663.03445.03946.03287.03594.03110.03396.02913.03312.0
us-gaap:UnregulatedOperatingRevenue ▅▄▅▅▅▅▄▅▄▄▄▄▄▄▄▄▄▄▁▆▆▅▅▅▅▅▅▆▇▇███▇▇███▇███▇▇▇▇198.0182.0191.0192.0195.0187.0183.0202.0170.0150.0144.0182.0174.0151.0178.0144.0162.0170.0-592.0429.0422.0400.0387.0377.0403.0377.0399.0449.0675.0824.0965.0908.0951.0824.0826.0882.0868.0958.0797.0867.0864.0855.0771.0791.0670.0698.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets ███████▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▁▁▁▁▁▁▁165385.0163465.0162388.0161409.0160049.0160072.0158838.0155917.0153449.0151136.0145392.0143165.0140259.0138541.0137914.0136325.0135004.0134108.0132761.0129686.0122654.0121709.0121156.0121033.0118575.0122142.0120709.0119656.0115173.0113792.0114779.0114590.0114100.0113666.0113856.0112008.063031.061799.062526.060776.059792.058986.059090.0NANANA57040.0NANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities us-gaap:VariableInterestEntityNotPrimaryBeneficiary▁▁█116.099.0951.0NANANA73.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities,us-gaap:CounterpartyName us-gaap:VariableInterestEntityNotPrimaryBeneficiary,duk:CommercialRenewables▄▁█14.013.015.0NANANA15.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
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 us-gaap:Liabilities us-gaap:CounterpartyName,us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities duk:PipelineInvestments,us-gaap:VariableInterestEntityNotPrimaryBeneficiaryNANANA946.0929.0NA58.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities us-gaap:VariableInterestEntityNotPrimaryBeneficiaryNANANA959.0943.0NA73.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity ███████▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▁▁▁▁▁▁▁165385.0163465.0162388.0161409.0160049.0160072.0158838.0155917.0153449.0151136.0145392.0143165.0140259.0138541.0137914.0136325.0135004.0134108.0132761.0129686.0122654.0121709.0121156.0121033.0118575.0122142.0120709.0119656.0115173.0113792.0114779.0114590.0114100.0113666.0113856.0112008.063031.061799.062526.060776.059792.058986.059090.0NANANA57040.0NANANA
us-gaap:StockholdersEquity ███▇▇███▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁48132.048186.047964.046006.045484.046921.046822.046438.045213.045030.043817.042995.042507.041792.041739.041631.041284.041179.041033.040489.039895.039892.039727.039832.039580.041051.040875.041412.040803.040709.041330.041165.040132.040953.040863.040905.022419.022781.022772.022794.022583.022734.022522.0NANANA21750.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AssetsCurrent ▄▄▄▄▄▅▄▅▄▄▅▄▄▃▄▃▃▃▃█▃▃▃▅▅▇▆▆▆▅▅▅▅▅▅▅▂▁▂▂▁▁▂8985.08508.08682.08679.09237.010181.09163.09619.09509.09168.09714.09520.08476.08279.08453.07706.07673.08005.08039.013534.08097.07943.08322.010195.09598.012322.011575.011575.011515.010565.010516.010418.09875.09549.010122.010106.06487.05924.06880.06273.05634.05545.06223.0NANANA5766.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▁▁▁▁▂▁▁▁▁▁▁▁▁▁▁▁▂▁█▁▂▂▂▂▄▃▃▃▃▂▃▃▂▂▃▂▂▃▃▂▂▃▃▂▂▃367.0379.0259.0308.0341.01450.0311.0379.0336.0377.0442.0303.0304.0421.0358.0282.0298.0878.0392.06179.0676.0778.0857.01370.0960.02821.02036.01931.02008.01531.01501.02166.01571.01296.01424.01761.01526.01071.02110.02032.01362.01419.01670.01808.01010.01080.01542.0NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▂▂▂▂█▂▂▁▂▂▁▁▂▁▁▁▄▂565.0692.0556.0600.0641.01698.0573.0582.0481.0550.0591.0449.0427.0579.0505.0427.0471.01022.0541.0NANANA481.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▁▅▇█▆▅▆█▇▆▇█▇▆▆▇▆▅▆868.01834.02144.02320.02049.01828.01994.02322.02153.01981.02172.02397.02205.01984.01995.02089.01880.01682.01893.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InventoryRawMaterialsAndSupplies NANA2312.0NANANA2297.0NANANA2238.0NANANA2293.0NANANA2374.0NANANA2389.0NANANA2102.0NANANA1901.0NANANA1751.0NANANA873.0NANANA734.0NANANANANANANA
 us-gaap:InventoryRawMaterialsAndSupplies dei:LegalEntity duk:DukeEnergyCarolinasNANA785.0NANANA768.0NANANA731.0NANANA744.0NANANA767.0NANANA785.0NANANA719.0NANANA654.0NANANA574.0NANANA505.0NANANANANANANANANANANA
 us-gaap:InventoryRawMaterialsAndSupplies dei:LegalEntity duk:DukeEnergyFloridaNANA325.0NANANA351.0NANANA315.0NANANA343.0NANANA354.0NANANA357.0NANANA305.0NANANA287.0NANANA269.0NANANANANANANANANANANANANANANA
 us-gaap:InventoryRawMaterialsAndSupplies dei:LegalEntity duk:DukeEnergyIndianaNANA307.0NANANA318.0NANANA312.0NANANA309.0NANANA312.0NANANA301.0NANANA258.0NANANA193.0NANANA164.0NANANA134.0NANANANANANANANANANANA
 us-gaap:InventoryRawMaterialsAndSupplies dei:LegalEntity duk:DukeEnergyOhioNANA78.0NANANA79.0NANANA84.0NANANA82.0NANANA84.0NANANA81.0NANANA67.0NANANA117.0NANANA142.0NANANA150.0NANANANANANANANANANANA
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us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▂▂▂▂▃▃▃▄▄▃▃▄▁▁▂▁▁▁▁▁▁▁▁▅▅▇▆▆▆▅▆▇▇▇█▇722.0619.0462.0505.01031.01000.0764.01333.01267.0976.01049.01092.0437.0422.0634.0433.0436.0425.0458.0429.0451.0308.0327.01566.01498.02008.01837.01954.01698.01661.01821.02191.02066.02062.02425.02123.0NANA1051.0NANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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 us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity duk:DukeEnergyProgressNANA323.0NANANA354.0360.0377.0361.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity duk:PiedmontNaturalGasNANA19.0NANANA23.024.025.026.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity duk:ProgressEnergyNANA623.0NANANA697.0710.0747.0748.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity ███▇▇███▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁48132.048186.047964.046006.045484.046921.046822.046438.045213.045030.043817.042995.042507.041792.041739.041631.041284.041179.041033.040489.039895.039892.039727.039832.039580.041051.040875.041412.040803.040709.041330.041165.040132.040953.040863.040905.022419.022781.022772.022794.022583.022734.022522.0NANANA21750.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ███▇▇██▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁▁▁▁▁49545.049658.049184.047295.046611.048083.047951.047407.045332.045045.043834.043013.042515.041798.041737.041642.041294.041186.041041.040546.039948.039941.039771.039868.039617.041087.040899.041453.040881.040789.041408.041237.040201.041030.040941.040995.022516.022878.022865.022899.022702.022856.022653.022149.021263.022048.021886.0NANANA
 us-gaap:CommonStockValue dei:LegalEntity duk:PiedmontNaturalGas██▅▅▅▅▅▅▅▄▄▄▄▁▁▁▁▁▁1635.01635.01310.01310.01310.01310.01310.01310.01310.01160.01160.01160.01160.0860.0860.0860.0860.0860.0860.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdditionalPaidInCapitalCommonStock ███▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▁▁▁▁▁▁▁43788.043761.043767.041046.040997.040930.040881.040488.040885.040823.040795.039747.039682.038839.038792.038774.038758.038742.038741.037997.037984.037969.037968.037953.037933.039413.039405.039388.039389.039372.039365.039317.039284.039263.039279.039249.021140.021121.021132.021061.021045.021027.021023.0NANANA20661.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▄▄▄▆▄███▆▆▅▆▅▅▅▅▄▄▄▆▄▄▄▄▄▄▃▄▂▂▄▃▁▃▃▃▂▂▃▃▂▂▂2687.02680.02471.03260.02707.04221.04108.04139.03502.03360.03113.03313.02894.03021.03013.02936.02607.02521.02384.03212.02627.02688.02564.02656.02294.02309.02012.02479.01768.01713.02363.02227.01223.01978.01889.01995.01598.01833.01873.01920.01448.01676.01496.0NANANA1460.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▆▅▅▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▂▂▁▁▁▂▂▃▄▅▄▄▄▄▅▅▅▅▆▅▆██▇-306.0-218.0-237.0-263.0-183.0-193.0-130.0-153.0-148.0-128.0-92.0-66.0-70.0-69.0-67.0-80.0-82.0-85.0-93.0-721.0-717.0-766.0-806.0-778.0-648.0-672.0-543.0-456.0-355.0-377.0-399.0-380.0-376.0-289.0-306.0-340.0-320.0-174.0-234.0-188.089.030.02.0NANANA-372.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity duk:DukeEnergyCarolinas███████████████▇▇▇▇▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▄▃▃▂▂▂▁▁▁-7.0-7.0-7.0-7.0-7.0-7.0-7.0-7.0-7.0-7.0-6.0-6.0-6.0-6.0-7.0-8.0-8.0-9.0-9.0-10.0-10.0-10.0-11.0-11.0-13.0-13.0-13.0-13.0-13.0-14.0-15.0-15.0-16.0-16.0-16.0-17.0-17.0-19.0-19.0-19.0-21.0-22.0-22.0NANANA-33.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity duk:DukeEnergyFlorida█▁█-2.0-3.0-2.0NA-1.0NA-1.0NA-1.0-1.0-2.0-2.0-2.0-2.04.04.03.02.01.02.01.01.0NANANANA0.0NANANA-1.0-1.00.00.00.0NANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity duk:ProgressEnergy██████▇▇▇▇▇▇▆▆▆▆▆▅▅▄▄▄▃▄▄▄▄▃▃▃▂▂▂▁▁-13.0-15.0-15.0-13.0-15.0-16.0-18.0-19.0-21.0-23.0-20.0-24.0-26.0-29.0-25.0-26.0-28.0-35.0-38.0-40.0-42.0-45.0-48.0-41.0-41.0-42.0-41.0-51.0-54.0-54.0-59.0-59.0-63.0-65.0-67.0NANANA-165.0NANANANANANANANANANANA
us-gaap:MinorityInterest ██▇▇▆▇▆▆▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂1413.01472.01220.01289.01127.01162.01129.0969.0119.015.017.018.08.06.0-2.011.010.07.08.057.053.049.044.036.037.036.024.041.078.080.078.072.069.077.078.090.097.097.093.0105.0119.0122.0131.0NANANA136.0NANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock us-gaap:CommonStock▁▁█▁▁▁▂▁▁▁▄▁▃▁26.0-3.02721.065.066.050.0394.069.061.028.01048.065.0843.047.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock,us-gaap:StatementEquityComponents us-gaap:CommonStock,us-gaap:AdditionalPaidInCapital▁▁█▁▁▁▂▁▁▁▄▁▃▁26.0-3.02721.065.066.050.0394.069.061.028.01048.065.0843.047.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock,us-gaap:StatementEquityComponents us-gaap:CommonStock,us-gaap:Parent▁▁█▁▁▁▂▁▁▁▄▁▃▁26.0-3.02721.065.066.050.0394.069.061.028.01048.065.0843.047.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▅▇██▇▇▄▁▂5.07.08.08.07.07.03.00.01.0NA0.00.00.01.00.00.00.02.03.00.02.01.02.00.0NANA20.036.06.03.0-24.01.0NANA-9.0NANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▅▅█▄▃▆▆▄▃▃▅▄▃▃▅▃▃▂▅▃▄▃▆▃▃▃▆▃▃▃▅▄▂▃▄▂▂▁▃▁▂▂▃▂▂1785.02088.02090.03409.01803.01554.02572.02581.01817.01239.01519.02365.01911.01391.01623.02255.01467.01289.01206.02386.01542.01664.01280.02517.01439.01440.01419.02548.01246.01373.01392.02147.01752.01091.01265.01977.01130.0872.0645.01310.0756.0961.0850.01537.01003.01121.0NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▄▄▄▄▄▄▄▄▄▄▄▅▅▅▅▅▅▁▅▅▅▅▄█▅▅▆▆▆▅▆▆▅▅▅▆▆▆▆▆▆▆▆▆▆-2477.0-3137.0-2640.0-2493.0-2449.0-3022.0-3324.0-2845.0-3075.0-2713.0-2790.0-2625.0-2381.0-2264.0-2090.0-2036.0-1925.0-2399.0-5978.0-1947.0-1850.0-1758.0-1986.0-2997.01162.0-1456.0-1639.0-1367.0-1081.0-1286.0-1412.0-1004.0-1097.0-1465.0-2208.0-1598.0-1211.0-1180.0-1364.0-1232.0-920.0-918.0-898.0-1017.0-1272.0-1236.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyCarolinas▄▄▃▃▆▁▃▄▄▃▃▃▄▄▃▄▄▅▃▆▇▁▇▅▅▂▅▅▅▄▇▃▆▅▇▂▅█▂▄▄▄▅▄▅▅-666.0-665.0-732.0-757.0-166.0-1178.0-854.0-661.0-673.0-730.0-744.0-775.0-692.0-642.0-828.0-683.0-535.0-517.0-741.0-304.07.0-1168.0-47.0-438.0-447.0-1049.0-395.0-516.0-382.0-552.0-136.0-794.0-206.0-465.0-40.0-1031.0-469.0125.0-1019.0-587.0-631.0-678.0-512.0-591.0-501.0-398.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyFlorida▄▅▄▄▃▅▂▄▄▄█▄▂▇▄▇▆▁▅▅▅▅▅▇▆▇█▆▇▆▇▆▅█▄▆▇▆-488.0-403.0-437.0-452.0-542.0-354.0-731.0-427.0-455.0-445.0-70.0-419.0-670.0-181.0-484.0-119.0-288.0-806.0-357.0-405.0-334.0-307.0-302.0-147.0-233.0-157.0-20.0-277.0-138.0-289.0-150.0-208.0-330.0-18.0-437.0-193.0-170.0-200.0NANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyIndiana▅▅▅█▆▁▆▃▅▅▅▅▅▅▅▅▆▄▅▆▅▅▆▅▆▅▅▆▆▅▅▅▅▅▆▆▅▅▄▅▅▅▅▃▅▄-203.0-195.0-186.0202.0-142.0-762.0-18.0-446.0-246.0-221.0-178.0-205.0-197.0-238.0-237.0-236.0-43.0-316.0-203.0-129.0-225.0-172.0-129.0-275.0-88.0-279.0-163.0-96.0-43.0-227.0-187.0-160.0-145.0-156.0-137.0-142.0-167.0-272.0-287.0-239.0-160.0-267.0-263.0-458.0-232.0-393.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyOhio▄▅▄▅▄▄▅▄▇▁▄▄▄▅▅▅▆▄▅▆▄▅▅▅▆▆▆▅▅▅▅▅▅▅▆█▅▄▄▆▆▅▃▇▅▄-215.0-193.0-256.0-180.0-238.0-227.0-187.0-329.0203.0-707.0-266.0-215.0-233.0-188.0-172.0-207.0-32.0-236.0-198.011.0-305.0-108.0-139.0-90.0-64.024.0-2.0-126.0-101.0-193.0-127.0-122.0-121.0-108.06.0292.0-73.0-251.0-306.0-3.0-50.0-90.0-385.098.0-185.0-268.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyProgress▇▇▇▇▇▇▆▇▇▆▆▆▆▇▇▇▇▇▆▇▇▇█▁█▇▆▇█▇▆▇▇▇▇█▆▇-451.0-431.0-473.0-367.0-345.0-492.0-587.0-522.0-537.0-613.0-681.0-606.0-601.0-457.0-413.0-519.0-387.0-324.0-695.0-482.0-340.0-398.0-269.0-2023.0-151.0-323.0-615.0-326.0-206.0-384.0-591.0-276.0-338.0-403.0-435.0-141.0-573.0-335.0NANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:PiedmontNaturalGas█▁▃▅▅▄▃▄▃▅▄▆▃▆▅▆▆▆▆▅▆▆-21.0-406.0-270.0-210.0-213.0-236.0-306.0-259.0-307.0-211.0-218.0-107.0-285.0-121.0-186.0-146.0-115.0-156.0-124.0-188.0-128.0-142.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:ProgressEnergy▆▆▆▆▆▆▄▆▆▅▆▅▅▇▆▆▇▅▅▆▇▇▇▁█▇▇▇█▇▆█▆▇▇▇▇▇-938.0-835.0-909.0-820.0-888.0-855.0-1313.0-948.0-960.0-1092.0-753.0-1138.0-1199.0-670.0-826.0-727.0-691.0-1104.0-989.0-865.0-672.0-707.0-629.0-2109.0-412.0-472.0-642.0-594.0-332.0-598.0-746.0-458.0-750.0-643.0-673.0-530.0-527.0-552.0NANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▅▄▄▆▅▅▅▅▅▄▅▅▅▄▄▅▄█▄▄▄▅▁▅▅▃▅▄▄▄▄▄▅▄▅▄▅▅▄▄▄▄▄▄565.01185.0506.0-957.0-411.02593.0743.0365.01189.01433.01413.0282.0318.0947.0543.0-235.0-122.01596.0-1015.05064.0206.015.0193.0890.0-4462.0801.0325.0-1258.0312.0-57.0-645.0-548.0-380.0246.0606.0-144.0536.0-731.0797.0592.0107.0-294.0-90.0278.0199.0-347.0NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▄▅▄▄▁█▄▅▄▄▅-127.0136.0-44.0-41.0-1057.01125.0-9.0101.0-69.0-41.0142.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity duk:DukeEnergyCarolinas█▁24.0-9.0NA-1.08.0-2.0NA8.015.0-33.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity duk:DukeEnergyFlorida▆▄▆▄▇▃▆▄▇▁█20.0-15.015.0-16.026.0-31.016.0-7.027.0-55.041.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity duk:DukeEnergyIndiana▁█-5.010.0NA-1.01.0-10.0NA8.0-8.0-4.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity duk:DukeEnergyOhio▁█-6.04.0NA2.0-6.0-3.0NA3.0-9.0-4.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity duk:DukeEnergyProgress▁█0.07.0NA-8.019.010.0NA21.0-2.07.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity duk:PiedmontNaturalGasNA1.0NANANA4.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity duk:ProgressEnergy▁▄▅▃█▄▄▅▅▄▆-81.0-11.012.0-23.086.0-1.0-10.016.025.0-17.049.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▄▅▃▅▁█▅33.086.0-147.0105.0-317.0422.081.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA160.0207.0165.065.076.065.0286.0175.0214.0282.083.0162.0NANANANA
us-gaap:DepreciationDepletionAndAmortization ████▇▇▇▇▇▇▇▆▆▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▁▁▁▁▁▁▁▁1368.01385.01405.01430.01350.01301.01345.01348.01245.01238.01249.01197.01161.01089.01056.01037.0962.0991.01033.0979.0937.0931.0933.0896.0901.0883.0866.0893.0864.0884.0864.0821.0782.0762.0787.0788.0533.0544.0518.0517.0487.0504.0513.0502.0NANANANANANA
us-gaap:IncreaseDecreaseInAccountsPayable ▆▂█▅▅▁▇▆▄▁▅█▆▃▇▅▅▂█▅▅▄▆▅▄▄▆▄▄▄█▄▄▃▇▄▆▃█▄▄▄▆▅▅▄170.0-467.0542.075.019.0-657.0374.0162.0-64.0-636.090.0531.0185.0-327.0350.0-49.0-42.0-463.0473.0-54.057.0-210.0176.0106.0-87.0-201.0273.0-85.0-121.0-97.0485.0-104.0-62.0-246.0353.0-120.0168.0-270.0496.0-117.0-146.0-192.0267.024.0-10.0-114.0NANANANA
us-gaap:IncreaseDecreaseInInventories ▄▃▄▃▄▆▆▃▆▅▄▄▅▃▄▃▅▃▇▁▃▃█▅▅▄█▇▇▁▇▄▅▃█▃▅▇▇▅▅▅▆▄▄▂-62.0-91.0-23.0-99.0-36.092.0119.0-107.079.031.0-52.0-34.031.0-101.0-20.0-95.02.0-155.0183.0-277.0-89.0-89.0224.015.055.0-57.0252.0139.0150.0-272.0150.0-35.042.0-126.0236.0-143.03.0162.0160.02.054.031.091.0-72.0-37.0-180.0NANANANA
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity duk:DukeEnergyCarolinas▅▅▅▃▅▆▆▃▅▆▄▅▅▅▄▃▅▅▅▂▄▄▇▅▆▅█▆▅▁▅▄▆▄▆▄▅▇█▄▄▆▇▃▄▃-8.011.018.0-88.012.072.053.0-82.018.059.0-36.0-5.07.09.0-28.0-64.018.0-4.02.0-115.0-62.0-40.0109.017.038.0-7.0151.066.024.0-181.032.0-35.062.0-50.066.0-37.0-1.0100.0152.0-18.0-16.059.083.0-75.0-56.0-86.0NANANANA
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity duk:DukeEnergyFlorida▃▃▄▃▂▆▃▂▃▅▄▂▅▁▅▄▂▁▃▄▃▅▆▄▄▃█▄▅▃▅▄▂▃█▂▃▅-14.0-10.0-4.0-18.0-23.019.0-13.0-28.0-14.013.0-1.0-29.011.0-39.08.0-2.0-30.0-42.0-15.0-3.0-17.012.024.03.00.0-10.043.0-3.016.0-20.04.0-2.0-29.0-15.049.0-29.0-11.04.0NANANANANANANANANANANANA
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity duk:DukeEnergyIndiana▄▃▃▅▂▅▆▅▆▅▄▃▅▅▅▄▄▃█▁▄▃▄▄▆▅█▆▄▅▅▅▆▄▆▄▄▆▇▄▅▅▅▄▄▃-23.0-38.0-34.018.0-49.021.039.015.028.013.0-12.0-36.017.03.00.0-20.0-8.0-26.080.0-84.0-17.0-45.0-6.0-15.037.05.073.024.0-4.010.020.016.023.0-6.024.0-2.0-6.034.047.0-14.019.012.020.0-14.0-20.0-32.0NANANANA
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity duk:DukeEnergyOhio▅▄▂▄▅▂▅▅▆▂▃▆▇▁▄▅▆▂█▄▅▄3.0-2.0-20.01.08.0-14.07.04.013.0-15.0-9.011.016.0-25.0-5.05.013.0-19.027.00.06.0-1.0NA1.0-6.03.0-24.012.033.0-29.032.0-8.0-10.0-11.06.0-41.012.08.0-40.025.037.0-33.0-14.021.027.0-49.0NANANANA
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity duk:DukeEnergyProgress▃▃▄▁▅▅▄▂▅▄▄▃▃▃▄▃▄▃█▁▄▃█▅▃▃▅▆▇▂▇▄▄▃█▃▄▄-23.0-29.01.0-70.024.022.0-5.0-41.021.05.0-1.0-21.0-26.0-15.0-7.0-29.00.0-23.079.0-71.0-5.0-15.087.016.0-16.0-37.012.031.075.0-53.058.0-9.0-3.0-20.081.0-23.0-5.05.0NANANANANANANANANANANANA
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity duk:PiedmontNaturalGas▆▂█▇▅▂█▇▆▁█▇▆▂5.0-31.022.017.0-9.0-33.025.014.08.0-45.020.012.09.0-37.0NA15.09.0-37.011.0NANA-49.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity duk:ProgressEnergy▃▃▄▁▄▅▃▂▄▄▄▂▃▂▄▃▃▂▆▁▃▄▇▄▃▂▆▅▇▂▆▃▃▃█▂▃▄-37.0-39.0-3.0-88.02.040.0-17.0-71.08.018.0-2.0-48.0-16.0-55.01.0-31.0-30.0-65.064.0-74.0-22.0-3.0111.018.0-15.0-47.056.027.090.0-72.062.0-10.0-33.0-36.0131.0-52.0-16.08.0NANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▅▅█▄▃▆▆▄▃▃▅▄▃▃▅▃▃▂▅▃▄▃▆▃▃▃▆▃▃▃▅▄▂▃▄▂▂▁▃▁▂▂▃▂▂1785.02088.02090.03409.01803.01554.02572.02581.01817.01239.01519.02365.01911.01391.01623.02255.01467.01289.01206.02386.01542.01664.01280.02517.01439.01440.01419.02548.01246.01373.01392.02147.01752.01091.01265.01977.01130.0872.0645.01310.0756.0961.0850.01537.01003.01121.0NANANANA
us-gaap:NetIncomeLoss ▆▇▃█▁▇▆█▆▇▅▇▅▆▆▇▆▆▃█▅▆▅▇▅▆▄█▆▃▆▇▅▆▅▆▅▅▅▅▅▅▅▆▃▅▅▄▅▅765.0992.0-63.01304.0-802.0938.0701.01327.0820.0900.0464.01082.0500.0620.0703.0954.0686.0716.0-227.01176.0509.0694.0477.0932.0543.0864.097.01274.0609.0-97.0688.01004.0339.0634.0435.0594.0444.0295.0288.0472.0435.0511.0427.0670.0-222.0445.0346.0109.0276.0344.0
us-gaap:ProfitLoss ▆▇▃█▁▇▆█▆▇▅▇▅▆▆▇▆▆▃█▅▆▅▇▆▇▄█▆▄▆▇▅▆▅▆▅▅▅▅▅▅▅▆▃▅698.0941.0-150.01234.0-892.0890.0607.01323.0748.0893.0454.01066.0502.0622.0703.0955.0689.0717.0-222.01181.0512.0699.0482.0935.0547.0867.0100.01269.0613.0-93.0692.01008.0342.0634.0437.0598.0448.0299.0290.0470.0441.0513.0429.0666.0-217.0445.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▄▄▄▄▄▄▄▄▄▄▄▅▅▅▅▅▅▁▅▅▅▅▄█▅▅▆▆▆▅▆▆▅▅▅▆▆▆▆▆▆▆▆▆▆-2477.0-3137.0-2640.0-2493.0-2449.0-3022.0-3324.0-2845.0-3075.0-2713.0-2790.0-2625.0-2381.0-2264.0-2090.0-2036.0-1925.0-2399.0-5978.0-1947.0-1850.0-1758.0-1986.0-2997.01162.0-1456.0-1639.0-1367.0-1081.0-1286.0-1412.0-1004.0-1097.0-1465.0-2208.0-1598.0-1211.0-1180.0-1364.0-1232.0-920.0-918.0-898.0-1017.0-1272.0-1236.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyCarolinas▄▄▃▃▆▁▃▄▄▃▃▃▄▄▃▄▄▅▃▆▇▁▇▅▅▂▅▅▅▄▇▃▆▅▇▂▅█▂▄▄▄▅▄▅▅-666.0-665.0-732.0-757.0-166.0-1178.0-854.0-661.0-673.0-730.0-744.0-775.0-692.0-642.0-828.0-683.0-535.0-517.0-741.0-304.07.0-1168.0-47.0-438.0-447.0-1049.0-395.0-516.0-382.0-552.0-136.0-794.0-206.0-465.0-40.0-1031.0-469.0125.0-1019.0-587.0-631.0-678.0-512.0-591.0-501.0-398.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyFlorida▄▅▄▄▃▅▂▄▄▄█▄▂▇▄▇▆▁▅▅▅▅▅▇▆▇█▆▇▆▇▆▅█▄▆▇▆-488.0-403.0-437.0-452.0-542.0-354.0-731.0-427.0-455.0-445.0-70.0-419.0-670.0-181.0-484.0-119.0-288.0-806.0-357.0-405.0-334.0-307.0-302.0-147.0-233.0-157.0-20.0-277.0-138.0-289.0-150.0-208.0-330.0-18.0-437.0-193.0-170.0-200.0NANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyIndiana▅▅▅█▆▁▆▃▅▅▅▅▅▅▅▅▆▄▅▆▅▅▆▅▆▅▅▆▆▅▅▅▅▅▆▆▅▅▄▅▅▅▅▃▅▄-203.0-195.0-186.0202.0-142.0-762.0-18.0-446.0-246.0-221.0-178.0-205.0-197.0-238.0-237.0-236.0-43.0-316.0-203.0-129.0-225.0-172.0-129.0-275.0-88.0-279.0-163.0-96.0-43.0-227.0-187.0-160.0-145.0-156.0-137.0-142.0-167.0-272.0-287.0-239.0-160.0-267.0-263.0-458.0-232.0-393.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyOhio▄▅▄▅▄▄▅▄▇▁▄▄▄▅▅▅▆▄▅▆▄▅▅▅▆▆▆▅▅▅▅▅▅▅▆█▅▄▄▆▆▅▃▇▅▄-215.0-193.0-256.0-180.0-238.0-227.0-187.0-329.0203.0-707.0-266.0-215.0-233.0-188.0-172.0-207.0-32.0-236.0-198.011.0-305.0-108.0-139.0-90.0-64.024.0-2.0-126.0-101.0-193.0-127.0-122.0-121.0-108.06.0292.0-73.0-251.0-306.0-3.0-50.0-90.0-385.098.0-185.0-268.0NANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:DukeEnergyProgress▇▇▇▇▇▇▆▇▇▆▆▆▆▇▇▇▇▇▆▇▇▇█▁█▇▆▇█▇▆▇▇▇▇█▆▇-451.0-431.0-473.0-367.0-345.0-492.0-587.0-522.0-537.0-613.0-681.0-606.0-601.0-457.0-413.0-519.0-387.0-324.0-695.0-482.0-340.0-398.0-269.0-2023.0-151.0-323.0-615.0-326.0-206.0-384.0-591.0-276.0-338.0-403.0-435.0-141.0-573.0-335.0NANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:PiedmontNaturalGas█▁▃▅▅▄▃▄▃▅▄▆▃▆▅▆▆▆▆▅▆▆-21.0-406.0-270.0-210.0-213.0-236.0-306.0-259.0-307.0-211.0-218.0-107.0-285.0-121.0-186.0-146.0-115.0-156.0-124.0-188.0-128.0-142.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity duk:ProgressEnergy▆▆▆▆▆▆▄▆▆▅▆▅▅▇▆▆▇▅▅▆▇▇▇▁█▇▇▇█▇▆█▆▇▇▇▇▇-938.0-835.0-909.0-820.0-888.0-855.0-1313.0-948.0-960.0-1092.0-753.0-1138.0-1199.0-670.0-826.0-727.0-691.0-1104.0-989.0-865.0-672.0-707.0-629.0-2109.0-412.0-472.0-642.0-594.0-332.0-598.0-746.0-458.0-750.0-643.0-673.0-530.0-527.0-552.0NANANANANANANANANANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▆▅▆▆▅▇█▇█▆▇▆▆▅▅▄▄▅▇▄▄▃▅▃▃▃▃▂▂▂▃▂▂▂▃▃▂▁▂▁▁▁▂▂▂▂2421.02215.02499.02305.02271.02832.03038.02619.02929.02536.02637.02377.02288.02087.02211.01910.01771.02160.02659.01849.01748.01645.02124.01580.01651.01411.01629.01355.01168.01232.01672.01139.01340.01375.01656.01593.01264.0988.01373.01052.0932.01006.01322.01156.01146.01179.0NANANANA
us-gaap:PaymentsToAcquireInvestments ▅▅▆██▅▁▃▅▃▃▃▃▃▃▃▄▅1598.01584.01851.02342.02426.01392.0243.0789.01456.0860.0999.0855.0950.0958.0901.0758.01026.01386.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▅▄▄▆▅▅▅▅▅▄▅▅▅▄▄▅▄█▄▄▄▅▁▅▅▃▅▄▄▄▄▄▅▄▅▄▅▅▄▄▄▄▄▄565.01185.0506.0-957.0-411.02593.0743.0365.01189.01433.01413.0282.0318.0947.0543.0-235.0-122.01596.0-1015.05064.0206.015.0193.0890.0-4462.0801.0325.0-1258.0312.0-57.0-645.0-548.0-380.0246.0606.0-144.0536.0-731.0797.0592.0107.0-294.0-90.0278.0199.0-347.0NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▆▂▁▄▃▄▂▃▄▅▃▃▃▃▃▅▃▃▂█▄▂▃▃▁▂▂▁▃▂▂▃▂▂▃▄▁▁▃▂4019.0608.0168.02374.01834.01954.0960.01509.01885.02737.01189.01383.01487.01240.01199.02976.01171.01563.0591.05133.02374.01140.01175.01206.077.0497.0697.0129.01213.0875.0608.01161.0823.01009.01544.01905.0329.0392.01555.0516.0NANA288.01087.0NANANANANANA
us-gaap:RepaymentsOfLongTermDebt █▁▅▆▇▂▄▃▄▅▃▁▇▃▂▅▃▂▄▂▂▂▇▁▄▂▃▄▃▆▂▄▄▄▃▅▁▄▁▁▁▁▁▃▂▃1926.076.01038.01517.01659.0292.0739.0582.0954.01201.0628.088.01703.0487.0281.01026.0601.0408.0935.0193.0406.0389.01765.018.0843.0403.0534.0746.0470.01287.0255.0968.0791.0747.0564.01056.057.0821.099.097.064.018.048.0651.0339.0609.0NANANANA
us-gaap:Dividends ██▆▆▆▆▅▅▅▅▄▄▂▂▂▂▁▁744.0744.0712.0712.0696.0695.0691.0690.0678.0676.0664.0663.0626.0625.0625.0625.0600.0600.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31

Common Stock Value

us-gaap:CommonStockValue dei:LegalEntity

us-gaap:CommonStockValue

duk:PiedmontNaturalGas


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1635163513101310131013101310131013101160116011601160860860860860860860
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.00.80.80.80.80.80.80.90.80.80.80.80.60.60.60.60.60.6
Percentage of Assets duk:PiedmontNaturalGas18.618.315.216.016.316.716.917.718.516.817.018.018.313.913.814.314.714.514.5

Shares Issued

us-gaap:SharesIssued us-gaap:ForwardContractIndexedToIssuersEquityType

us-gaap:SharesIssued

duk:EquityForwards


Shares
Period End2020-12-312019-12-312018-12-312018-06-30
Value323.81010
Percentage of SharesIssued100.0100.0100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized dei:LegalEntity

us-gaap:CommonStockSharesAuthorized

duk:DukeEnergyOhio


Common
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value12012012012012012012012012012012012012012012012012012012012012012012012012012012012012012012012012012089120120120120120120120
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:PiedmontNaturalGas


Common
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1001001000.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.0001
Percentage of CommonStockSharesAuthorized83.383.383.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


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
Value7697697697367357357337297287287277137127017007007007007006896896896886886887087077077077077067067067067047044461338133613321332133113291309
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesOutstanding dei:LegalEntity

duk:DukeEnergyOhio


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value909090909090909090909090909090909089898989898989898989898989898989898912089898989898989
Percentage of CommonStockSharesOutstanding11.711.711.712.212.212.212.312.312.412.412.412.612.612.812.912.912.912.812.813.013.013.013.013.013.012.712.712.712.712.712.712.712.712.712.717.06.76.76.76.76.76.76.8

duk:PiedmontNaturalGas


Common
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1001001000.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.0001
Percentage of CommonStockSharesOutstanding13.013.013.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStockSharesOutstanding us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonStock, us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312018-12-312017-12-31
Value769769769735735733727700
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStock


Common
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-312007-12-31
Value73673573573372972872872771371270170070070070070068968968968868868870870770770770770670670670413381336133213321331132913241318130912721262
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.0

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
Value7697697357357367297287277147047017007007006916906896886927087077077067067067056994461337133313331331132213141311
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
Value7697697357357347297287277137037017007007006896896896886927087077077067067067056994461337133213321330132013141310
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

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2020-09-302019-09-302019-03-312018-03-31
Value735729727701
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value2.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.01.04.01318
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.961.25-1.131.241.820.651.510.710.881.01.360.981.02-0.331.70.741.010.691.350.781.220.141.80.86-0.140.971.420.480.890.620.850.990.220.220.350.330.380.320.51-0.170.340.260.080.210.27
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.961.25-1.131.241.820.651.510.710.881.01.360.981.02-0.331.70.741.010.691.350.781.220.141.80.86-0.140.971.420.480.890.620.850.990.220.220.350.330.380.320.51-0.170.340.260.080.210.27
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.131.74-1.131.240.881.821.121.240.651.510.710.88
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value6771011-144.01224-792.083668313128008884381086498631716956689724401117255873444980256773510.01173631-75.06691000252651469574298355242195494
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue11.816.40.018.2-14.614.111.218.913.614.47.216.48.810.312.314.712.412.67.217.810.713.78.412.410.112.10.218.310.6-1.110.914.94.311.08.28.58.39.87.24.914.0

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

duk:DukeEnergyCarolinas


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value-172.0555234339219590301293135496117324206466274270141494261272141385265292139377271287209343181244131258213125313194
Percentage of ComprehensiveIncomeNetOfTax119.445.3-29.540.632.145.037.633.030.845.723.551.328.848.739.837.335.242.246.837.131.448.046.739.71390.032.142.9-382.731.234.371.837.527.944.971.551.7160.539.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.08.34.35.73.68.55.14.82.27.52.15.33.67.24.94.72.57.55.05.12.65.94.74.82.55.94.64.33.45.13.14.12.33.86.03.77.95.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas0.027.014.519.412.327.317.616.87.623.77.018.412.021.815.815.78.422.215.615.69.018.715.515.48.419.515.414.312.217.911.414.18.113.313.28.516.812.1

duk:DukeEnergyFlorida


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value218116146288215121105290201974024316710334412115991632071711111052161651139320514210975196-57.0110-44.012682129
Percentage of ComprehensiveIncomeNetOfTax32.211.5-101.423.5-27.114.515.422.125.110.99.122.433.516.348.012.723.112.615.717.730.615.123.426.929.115.4930.017.522.5-145.311.219.6-22.616.9-9.422.027.536.3
Percentage of RegulatedAndUnregulatedOperatingRevenue3.81.90.04.34.02.01.74.23.41.60.73.73.01.75.91.92.91.61.13.13.32.12.03.33.01.91.73.22.41.61.22.9-1.01.9-0.81.92.33.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida16.510.50.018.417.211.28.418.714.98.93.216.613.99.231.48.613.49.56.115.015.110.88.915.012.910.48.113.711.69.86.914.7-5.011.4-4.09.16.912.8

duk:DukeEnergyIndiana


Comprehensive
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value11981991569711076119981003612110691721298594944568107581018711482103819058-19.077-168.055-32.06876
Percentage of ComprehensiveIncomeNetOfTax9.7-10.211.811.912.112.417.411.019.715.85.012.715.412.618.011.015.212.820.95.612.014.6580.08.613.8-152.012.310.332.113.812.4-3.325.8-47.322.7-16.413.80.0
Percentage of RegulatedAndUnregulatedOperatingRevenue1.81.51.72.21.71.81.21.81.71.60.61.91.91.61.32.01.61.71.80.71.21.81.01.61.51.71.31.51.41.51.0-0.32.2-4.61.6-0.81.92.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana15.613.114.319.313.614.39.914.513.313.74.815.114.312.09.815.912.113.214.16.09.913.67.312.811.613.511.013.611.612.49.3-2.611.2-24.48.8-4.511.011.5

duk:DukeEnergyOhio


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value51706665487447695510046-25.0655530425789235963439-107.0-890.06.05958-20.06814457531503473
Percentage of ComprehensiveIncomeNetOfTax-35.45.7-8.37.87.05.65.97.812.69.29.2-4.09.15.84.45.814.27.64.18.0630.037.4-17.01186.70.95.923.0-3.114.52.415.121.112.825.66.90.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.01.01.21.10.81.10.81.10.91.50.8-0.41.10.80.50.71.01.40.41.11.16.9-1.8-13.40.10.91.0-0.31.20.21.32.10.91.31.02.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio0.014.815.613.19.915.110.913.010.921.310.0-4.813.111.76.98.111.218.25.411.413.198.4-20.2-116.60.77.27.2-2.78.91.86.38.24.06.04.98.3

duk:DukeEnergyProgress


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value-296.034616120415527816920313521613917716824615414760271131137138175779216825
Percentage of ComprehensiveIncomeNetOfTax205.628.3-20.324.422.721.221.122.930.819.927.928.123.525.722.420.315.023.123.518.720.617.530.619.629.38.4
Percentage of RegulatedAndUnregulatedOperatingRevenue0.05.13.03.42.54.02.93.32.23.32.52.92.93.82.82.61.14.12.52.52.32.61.31.62.50.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress0.021.313.015.211.116.512.213.79.913.710.812.113.416.812.812.15.117.110.810.511.412.26.88.212.02.3

duk:PiedmontNaturalGas


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value118-25.02.0178105-18.0-7.012248-21.0-8.011063-11.0-8.09554-11.03.0103
Percentage of ComprehensiveIncomeNetOfTax-81.9-2.0-0.321.315.4-1.4-0.913.711.0-1.9-1.617.48.8-1.2-1.213.113.5-0.90.514.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.40.03.01.7-0.3-0.12.00.8-0.3-0.11.81.1-0.2-0.11.70.0-0.20.11.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas0.0-15.41.034.824.7-10.7-3.321.111.0-12.2-3.719.914.2-6.0-4.019.016.8-7.01.621.3

duk:ProgressEnergy


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value-189.0607345285229523331252127406267237445343281202106448275212121448216259146332206204193346-15.02625560
Percentage of ComprehensiveIncomeNetOfTax131.249.6-43.634.133.539.941.428.429.037.453.637.662.235.940.827.926.438.249.328.926.955.938.135.21460.028.332.6-272.028.834.6-6.05.544.420.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.09.06.44.83.87.55.64.12.16.14.73.97.75.35.13.51.96.85.33.92.36.93.94.32.65.23.53.13.25.2-0.30.53.81.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy0.019.013.811.88.716.112.19.84.913.310.79.219.012.011.79.34.815.111.79.15.215.38.710.26.211.68.58.08.412.5-0.71.29.12.6

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value-68.0-44.0-86.0-70.0-88.0-62.0-67.0-19.0-84.0-7.0-10.0-16.02.02.00.01.03.01.04.04.06.06.0-2.03.0-1.06.0-1.04.05.02.04.0-1.02.04.00.03.0-13.09.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-1.2-0.70.0-1.0-1.6-1.0-1.1-0.3-1.4-0.1-0.2-0.20.00.00.00.00.10.00.10.10.10.1-0.00.1-0.00.1-0.00.10.10.00.1-0.00.00.10.00.1-0.30.3

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest dei:LegalEntity

duk:ProgressEnergy


Comprehensive
Period End2020-12-312020-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.01.01.0-1.00.02.02.02.03.02.03.02.02.03.02.03.03.03.02.03.03.01.00.01.01.01.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest-0.0-1.4-1.214.3-0.0-12.5100.0100.00.0200.0100.0200.050.075.033.350.00.0-150.066.7-300.050.0-100.00.020.050.025.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.0-0.00.00.00.00.00.10.00.10.00.00.00.00.10.10.00.00.00.10.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy0.00.00.0-0.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.0

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
Value609967-123.01154-880.0813630130872888142810705006337169576927254051176564740453800570734161172635-70.06711004251651471578298359245182503541725765-234.0440
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 RegulatedAndUnregulatedOperatingRevenue10.615.70.017.2-16.213.710.318.812.414.37.016.18.910.312.314.812.512.77.317.910.813.88.512.310.212.10.318.310.7-1.111.015.04.311.08.38.68.39.97.34.614.214.821.019.4-7.112.2

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

duk:ProgressEnergy


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-31
Value413290-189.0608345285229523332251127408269239448345284204108451277215124451218262149333206205196346-15.0156157
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest67.830.0153.752.7-39.235.136.340.045.628.529.738.153.837.862.636.141.028.126.738.449.129.127.456.438.235.7931.228.432.4-292.929.234.5-6.024.043.7
Percentage of RegulatedAndUnregulatedOperatingRevenue7.24.70.09.06.44.83.87.55.74.12.16.24.83.97.75.35.13.61.96.95.34.02.37.03.94.32.75.23.53.13.25.2-0.32.64.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy15.411.60.019.013.811.88.716.112.19.84.913.410.89.319.112.011.99.44.915.211.89.25.315.48.810.36.411.68.58.18.512.5-0.77.17.5

Cost Depreciation Amortization And Depletion

us-gaap:CostDepreciationAmortizationAndDepletion

us-gaap:CostDepreciationAmortizationAndDepletion


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value120712261208121711501130118411861089108910951039973967933900835
Percentage of CostDepreciationAmortizationAndDepletion100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue21.019.90.018.121.219.019.417.118.517.717.915.717.215.816.113.915.0

us-gaap:CostDepreciationAmortizationAndDepletion dei:LegalEntity

duk:DukeEnergyCarolinas


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value363359372372375343375350346317335305289272286281269
Percentage of CostDepreciationAmortizationAndDepletion30.129.330.830.632.630.431.729.531.829.130.629.429.728.130.731.232.2
Percentage of RegulatedAndUnregulatedOperatingRevenue6.35.80.05.56.95.86.15.05.95.15.54.65.14.44.94.34.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas22.520.90.018.123.319.621.116.220.218.218.914.617.315.416.613.215.6

duk:DukeEnergyFlorida


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value205200179183175165180182175165168166144150137154137
Percentage of CostDepreciationAmortizationAndDepletion17.016.314.815.015.214.615.215.316.115.215.316.014.815.514.717.116.4
Percentage of RegulatedAndUnregulatedOperatingRevenue3.63.30.02.73.22.82.92.63.02.72.72.52.62.42.42.42.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida15.518.20.011.714.015.314.511.812.915.213.511.412.013.512.511.011.5

duk:DukeEnergyIndiana


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value15215215414913413213213013213113413012613012212091
Percentage of CostDepreciationAmortizationAndDepletion12.612.412.712.211.711.711.111.012.112.012.212.512.913.413.113.310.9
Percentage of RegulatedAndUnregulatedOperatingRevenue2.62.50.02.22.52.22.21.92.22.12.22.02.22.12.11.91.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana20.720.40.019.621.719.118.516.118.517.117.415.917.117.816.415.012.3

duk:DukeEnergyOhio


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7574707268686669666472646270686363
Percentage of CostDepreciationAmortizationAndDepletion6.26.05.85.95.96.05.65.86.15.96.66.26.47.27.37.07.5
Percentage of RegulatedAndUnregulatedOperatingRevenue1.31.20.01.11.31.11.11.01.11.01.21.01.11.11.21.01.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio16.413.90.015.216.113.713.614.115.212.114.313.613.513.413.713.414.4

duk:DukeEnergyProgress


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value236285283289257287288314251290268253235235189182173
Percentage of CostDepreciationAmortizationAndDepletion19.623.223.423.722.325.424.326.523.026.624.524.424.224.320.320.220.7
Percentage of RegulatedAndUnregulatedOperatingRevenue4.14.60.04.34.74.84.74.54.34.74.43.84.23.83.32.83.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress17.520.30.017.820.721.420.618.618.119.519.616.018.216.115.112.514.4

duk:PiedmontNaturalGas


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value514847454345454342424140393939383623
Percentage of CostDepreciationAmortizationAndDepletion4.23.93.93.73.74.03.83.63.93.93.73.84.04.04.24.24.30.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.90.80.00.70.80.80.70.60.70.70.70.60.70.60.70.60.60.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas23.77.90.027.821.88.810.625.620.17.39.423.318.17.18.820.817.97.1

duk:ProgressEnergy


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value441485462472432452468496426455436419380384327334311
Percentage of CostDepreciationAmortizationAndDepletion36.539.638.238.837.640.039.541.839.141.839.840.339.139.735.037.137.2
Percentage of RegulatedAndUnregulatedOperatingRevenue7.77.90.07.08.07.67.77.17.37.47.16.36.76.35.65.25.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy16.519.40.014.817.318.717.715.315.517.716.713.815.214.913.911.713.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity

us-gaap:CostOfGoodsAndServicesSold

duk:DukeEnergyCarolinas


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value344422497376453433504395472451490407473428531435
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue6.06.97.46.97.67.17.36.77.77.47.47.27.77.48.27.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas21.424.624.123.425.924.423.323.127.125.423.424.326.824.924.925.2

duk:DukeEnergyFlorida


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value424359551382358483610509410518614486467434557455
Percentage of CostOfGoodsAndServicesSold123.385.1110.9101.679.0111.5121.0128.986.9114.9125.3119.498.7101.4104.9104.6
Percentage of RegulatedAndUnregulatedOperatingRevenue7.45.88.27.06.07.98.88.76.78.59.38.67.67.58.68.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida32.032.635.230.633.138.839.437.637.841.742.040.441.939.639.838.2

duk:DukeEnergyIndiana


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value201217222161194215234229257270272226232222259234
Percentage of CostOfGoodsAndServicesSold58.451.444.742.842.849.746.458.054.459.955.555.549.051.948.853.8
Percentage of RegulatedAndUnregulatedOperatingRevenue3.53.53.33.03.33.53.43.94.24.44.14.03.83.84.04.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana27.329.129.226.128.030.129.032.133.535.033.230.631.729.832.331.5

duk:DukeEnergyProgress


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value409436537395405441577479515440535408509395475375
Percentage of CostOfGoodsAndServicesSold118.9103.3108.0105.189.4101.8114.5121.3109.197.6109.2100.2107.692.389.586.2
Percentage of RegulatedAndUnregulatedOperatingRevenue7.17.18.07.36.87.28.38.28.47.28.17.28.36.87.36.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress30.331.133.031.830.331.534.234.534.732.233.831.634.931.632.531.3

duk:PiedmontNaturalGas


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value632253953162148466527319754742591916365
Percentage of CostOfGoodsAndServicesSold18.353.37.814.135.834.29.116.557.843.711.018.254.844.611.914.9
Percentage of RegulatedAndUnregulatedOperatingRevenue1.13.70.61.02.72.40.71.14.43.20.81.34.23.31.01.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas29.337.124.126.931.634.827.431.147.245.331.434.446.843.034.432.3

duk:ProgressEnergy


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8337951088777763924118798892595711488959768291031831
Percentage of CostOfGoodsAndServicesSold242.2188.4218.9206.6168.4213.4235.5250.1196.0212.2234.3219.9206.3193.7194.2191.0
Percentage of RegulatedAndUnregulatedOperatingRevenue14.512.916.214.312.815.117.116.815.015.717.315.915.914.315.915.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy31.131.734.031.131.534.936.636.036.036.737.735.837.935.336.034.7

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

duk:DukeEnergyOhio, srt:NaturalGasReserves


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value16513.06.037274.010.054404.01554385.010.0
Percentage of CostOfGoodsAndServicesSold4.712.10.61.68.26.20.82.511.48.90.83.711.48.90.92.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.80.00.10.60.40.10.20.90.70.10.30.90.70.10.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio srt:NaturalGasReserves0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, us-gaap:Electricity


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value938294778711486
Percentage of CostOfGoodsAndServicesSold27.019.418.920.519.222.621.8
Percentage of RegulatedAndUnregulatedOperatingRevenue1.61.31.41.41.51.61.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:Electricity0.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

srt:NaturalGasReserves


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value792764159199176487632723758893132306876
Percentage of CostOfGoodsAndServicesSold23.065.48.215.743.940.69.519.269.352.511.821.966.253.712.817.5
Percentage of RegulatedAndUnregulatedOperatingRevenue1.44.50.61.13.32.90.71.35.33.90.91.65.14.01.01.4
Percentage of RegulatedAndUnregulatedOperatingRevenue srt:NaturalGasReserves0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Electricity


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value1415144318491349144719781641160919311574167618631541
Percentage of CostOfGoodsAndServicesSold411.3341.9372.0358.8319.4392.5415.4340.9394.1386.7354.3350.8354.3
Percentage of RegulatedAndUnregulatedOperatingRevenue24.623.527.524.924.328.527.926.129.127.927.328.727.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4591470057034909425144624990501145784787524250594667477945414793417543033982480543444298434947994356462345764780483965674890496650594685492356582795313828503192285928592908291533062835
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 RegulatedAndUnregulatedOperatingRevenue79.776.40.073.078.475.081.872.277.977.785.776.382.777.978.373.975.275.171.473.183.379.981.774.077.976.282.374.781.399.180.074.086.179.486.484.278.186.484.680.580.978.184.473.9100.678.9

us-gaap:CostsAndExpenses dei:LegalEntity

duk:DukeEnergyCarolinas


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
Value1291130517931348125612651429136912621309153413771447128113191359124412321375141012111259126313951224138613401308131714911295131312401297139615021233102912201328127711891225135812031200
Percentage of CostsAndExpenses28.127.831.427.529.528.428.627.327.627.329.327.231.026.829.028.429.828.634.529.327.929.329.029.128.130.029.327.427.222.726.526.424.527.728.426.544.132.842.841.644.741.642.146.636.442.3
Percentage of RegulatedAndUnregulatedOperatingRevenue22.421.20.020.123.221.323.419.721.521.225.120.825.620.922.721.022.421.524.721.423.223.423.721.521.922.924.120.522.122.521.219.621.122.024.522.334.528.336.233.536.132.535.634.436.633.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas80.276.00.065.578.072.480.563.373.775.186.465.986.572.776.663.671.971.881.863.372.372.481.067.771.772.980.867.575.074.675.568.477.975.086.877.576.368.683.271.179.576.60.00.00.00.0

duk:DukeEnergyFlorida


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value995894104111329188561039113610318981135113195894286211618857638751008833811958107996685993911139498979349631196747112411821000756
Percentage of CostsAndExpenses21.719.018.323.121.619.220.822.722.518.821.722.420.519.719.024.221.217.722.021.019.218.922.022.522.218.620.523.319.613.719.119.423.615.922.820.935.824.1
Percentage of RegulatedAndUnregulatedOperatingRevenue17.314.50.016.816.914.417.016.417.614.618.617.117.015.414.917.915.913.315.715.316.015.118.016.617.314.216.917.416.013.515.314.420.312.719.717.628.020.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida75.181.20.072.273.479.383.573.476.282.791.577.479.684.578.782.974.379.685.073.073.579.281.675.175.479.182.274.677.580.486.172.3104.777.2102.685.283.674.9

duk:DukeEnergyIndiana


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
Value573568566593486534582572569596638646569563574573532572558570528538497631541578662608570630566552532543533748551960540760511529508545470489
Percentage of CostsAndExpenses12.512.19.912.111.412.011.711.412.412.512.212.812.211.812.612.012.713.314.011.912.212.511.413.112.412.514.512.711.89.611.611.110.511.610.813.219.730.618.923.817.918.517.518.714.217.2
Percentage of RegulatedAndUnregulatedOperatingRevenue10.09.20.08.89.09.09.58.29.79.710.49.710.19.29.98.89.610.010.08.710.110.09.39.79.79.511.99.59.69.59.38.29.09.29.411.115.426.416.019.214.514.414.713.814.313.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana78.076.20.077.978.877.281.470.979.777.682.778.977.177.077.071.471.775.576.170.575.275.474.584.278.973.483.677.076.274.675.873.176.075.085.1104.280.4139.586.4105.882.480.30.00.00.00.0

duk:DukeEnergyOhio


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
Value38340738836732439840938135942741233038243942137037243542138437342137938636448140538867321218247047077646977156237757067246357467256441434754
Percentage of CostsAndExpenses8.38.76.87.57.68.98.27.67.88.97.96.58.29.29.37.78.910.110.68.08.69.88.78.08.410.48.98.113.932.316.914.214.016.314.212.622.324.724.822.722.226.124.922.143.426.6
Percentage of RegulatedAndUnregulatedOperatingRevenue6.76.60.05.56.06.76.75.56.16.96.75.06.87.27.35.76.77.67.55.87.27.87.16.06.57.97.36.111.332.013.510.512.013.012.210.617.421.321.018.318.020.421.016.343.621.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio84.076.50.077.676.679.984.077.982.980.481.670.483.283.884.778.685.184.082.478.587.181.683.883.589.982.184.487.0126.7278.094.986.087.2102.391.094.586.985.091.786.491.584.90.069.8221.077.2

duk:DukeEnergyProgress


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value10711127158312171013104411621315112811841139125910591192996104991893510401146958105010311095100911341018108297911659601128969100497912271007984
Percentage of CostsAndExpenses23.324.027.824.823.823.423.326.224.624.721.724.922.724.921.921.922.021.726.123.922.124.423.722.823.224.522.222.620.217.719.622.719.221.419.921.736.031.4
Percentage of RegulatedAndUnregulatedOperatingRevenue18.618.30.018.118.717.519.018.919.219.218.619.018.819.417.216.216.516.318.617.418.419.519.416.918.118.718.316.916.517.615.716.816.517.017.218.328.227.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress79.480.40.074.881.578.083.177.981.379.883.479.682.081.679.671.876.676.788.672.479.080.388.973.684.678.385.179.282.281.979.378.985.482.686.887.892.490.3

duk:PiedmontNaturalGas


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value209365283179187299286181203407356191210392329187196330226162168316
Percentage of CostsAndExpenses4.67.85.03.64.46.75.73.64.48.56.83.84.58.27.23.94.77.75.73.43.97.4
Percentage of RegulatedAndUnregulatedOperatingRevenue3.65.90.02.73.45.04.72.63.56.65.82.93.76.45.72.93.55.80.02.53.25.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas97.260.20.0110.594.958.467.3107.797.170.381.8111.097.770.974.1102.297.566.070.2102.592.365.4

duk:ProgressEnergy


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value20702023262323541935190421972457216320842276239320202135186222121807170019232157179418631992217719781995196122001933206518982096216817562103241120121740
Percentage of CostsAndExpenses45.143.046.048.045.542.744.049.047.243.543.447.343.344.741.046.243.339.548.344.941.343.345.845.445.443.242.946.039.931.438.842.242.937.542.742.672.055.4
Percentage of RegulatedAndUnregulatedOperatingRevenue35.932.90.035.035.732.036.035.436.833.837.236.135.834.832.134.132.529.734.532.834.434.637.433.635.432.935.334.432.531.231.131.236.929.836.935.956.247.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy77.380.80.073.677.578.683.175.878.881.087.278.680.982.979.377.275.578.087.172.776.479.985.374.379.978.783.876.879.881.382.575.895.080.394.486.587.982.8

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-06-302012-03-312011-06-302011-03-31
Value751953-84.01265-817.089966713278209004441078505620705956688716316105451069148693760077395888722746684942342634449297441513
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue13.015.50.018.8-15.115.110.919.114.014.67.316.38.910.112.214.712.412.55.716.09.812.99.114.510.712.71.713.912.111.311.214.05.810.712.68.212.514.0

us-gaap:IncomeLossFromContinuingOperations dei:LegalEntity

duk:DukeEnergyOhio


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value399151706665497447695510046-25.0655630425755235743341359292628-15.010.024
Percentage of IncomeLossFromContinuingOperations5.29.5-60.75.5-8.17.27.35.65.77.712.49.39.1-4.09.25.94.45.918.05.24.58.28.83.62.27.630.52.93.9-2.01.52.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.71.50.01.01.21.10.81.10.81.10.91.50.8-0.41.10.90.50.71.00.80.41.10.80.50.21.00.50.40.5-0.20.20.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio8.617.10.014.815.613.110.115.110.913.010.921.310.0-4.813.111.96.98.111.211.25.411.09.57.43.210.16.05.85.3-2.01.22.9

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

duk:DukeEnergyOhio, us-gaap:CorporateNonSegment, us-gaap:AllOtherSegments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-8.0-2.0-2.0-2.0-1.0-1.0-1.0-1.0-1.0-6.0-8.0-9.0-8.0-10.0-9.0-10.0-9.0
Percentage of IncomeLossFromContinuingOperations-1.1-0.22.4-0.20.1-0.1-0.1-0.1-0.1-0.9-0.8-1.3-1.1-3.2-0.9-2.0-1.3
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.1-0.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.2-0.1-0.2-0.1-0.2-0.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:CorporateNonSegment us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.00.00.00.0-112.5-72.70.00.0-142.9-150.0

duk:DukeEnergyOhio, us-gaap:OperatingSegments, duk:ElectricUtilitiesandInfrastructure


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value24502563443030623136298539334250222447521936
Percentage of IncomeLossFromContinuingOperations3.25.2-29.85.0-5.43.34.54.73.84.06.57.97.75.36.05.23.23.414.94.93.75.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.80.00.90.80.50.50.90.50.60.51.30.70.50.70.80.40.40.80.80.40.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:OperatingSegments duk:ElectricUtilitiesandInfrastructure7.013.80.016.013.38.70.015.29.210.10.00.00.09.80.00.06.77.10.00.05.910.6

duk:DukeEnergyOhio, us-gaap:OperatingSegments, duk:GasUtilitiesandInfrastructure


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2343289.0233620131735291218342914172620121431
Percentage of IncomeLossFromContinuingOperations3.14.5-33.30.7-2.84.03.01.02.13.96.51.13.65.54.11.52.53.66.31.12.74.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.70.00.10.40.60.30.20.30.60.50.20.30.60.50.20.30.50.40.20.30.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:OperatingSegments duk:GasUtilitiesandInfrastructure20.425.40.011.424.723.70.016.017.519.90.00.00.019.50.00.017.015.30.00.014.318.2

duk:DukeEnergyOhio, us-gaap:OperatingSegments, duk:TotalReportableSegments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value479353726766507548716439506764336757461961313033-13.0
Percentage of IncomeLossFromContinuingOperations6.39.8-63.15.7-8.27.37.55.75.910.16.75.77.021.26.16.59.711.74.93.27.932.63.44.6-1.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.81.50.01.11.21.10.81.10.81.21.00.70.91.21.00.61.21.10.70.31.00.60.50.6-0.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:OperatingSegments duk:TotalReportableSegments10.317.50.015.215.813.30.015.311.10.00.09.19.90.00.07.813.10.00.00.010.40.06.78.0-2.3

us-gaap:IncomeLossFromContinuingOperations us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:CorporateNonSegment, us-gaap:AllOtherSegments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-248.0-139.0-127.0-103.0-84.0-112.0-124.0-124.0-115.0-89.0-700.0-34.0-94.0-77.0-209.0-181.0-107.0-148.0
Percentage of IncomeLossFromContinuingOperations-33.0-14.6151.2-8.110.3-12.5-18.6-9.3-14.0-9.9-99.3-3.6-13.7-10.8-66.1-17.2-21.0-21.4
Percentage of RegulatedAndUnregulatedOperatingRevenue-4.3-2.30.0-1.5-1.5-1.9-2.0-1.8-2.0-1.4-12.1-0.5-1.7-1.3-3.7-2.8-2.1-2.8
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CorporateNonSegment us-gaap:AllOtherSegments-918.5-534.60.0-429.2-323.1-487.00.0-496.0-460.0-423.80.0-212.5-268.6-233.30.0-1131.2-356.7-510.3

us-gaap:OperatingSegments, duk:CommercialRenewables


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value4727796090575940861313-62.03820439-49.0262510.0-24.01126
Percentage of IncomeLossFromContinuingOperations6.32.8-94.04.7-11.06.38.83.010.51.42.9-5.87.53.262.3-5.13.83.53.2-2.32.23.8
Percentage of RegulatedAndUnregulatedOperatingRevenue0.80.40.00.91.71.01.00.61.50.20.2-0.90.70.37.6-0.80.50.40.2-0.40.20.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:CommercialRenewables39.522.70.047.673.244.20.029.072.912.30.0-48.831.919.80.0-51.623.619.50.0-17.39.822.8

us-gaap:OperatingSegments, duk:ElectricUtilitiesandInfrastructure


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value935820-170.013817537055921385809750566116757575082610207296354831189704664
Percentage of IncomeLossFromContinuingOperations124.586.0202.4109.2-92.278.488.8104.498.783.3127.5108.3113.9121.0117.2106.7106.088.7152.8112.8138.096.1
Percentage of RegulatedAndUnregulatedOperatingRevenue16.213.30.020.513.911.99.720.013.812.29.317.610.212.214.215.713.111.18.718.113.512.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:ElectricUtilitiesandInfrastructure17.515.50.021.615.013.60.021.114.814.10.018.611.014.10.016.714.112.80.018.814.113.0

us-gaap:OperatingSegments, duk:GasUtilitiesandInfrastructure


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value17245134-73.0-1576.024914026402261131728116140192713389151632
Percentage of IncomeLossFromContinuingOperations2.325.7-159.5-5.8192.927.721.02.04.925.125.51.65.518.719.92.03.918.628.21.43.14.6
Percentage of RegulatedAndUnregulatedOperatingRevenue0.34.00.0-1.1-29.14.22.30.40.73.71.80.30.51.92.40.30.52.31.60.20.30.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:GasUtilitiesandInfrastructure5.231.60.0-30.3-545.337.50.010.413.129.90.06.68.816.00.07.69.019.90.016.916.218.8

us-gaap:OperatingSegments, duk:TotalReportableSegments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value9991092431368-733.01011791145193598914059907827934971243630845689971651811163983814835
Percentage of IncomeLossFromContinuingOperations133.0114.6-51.2108.189.7112.5118.6109.3114.0109.9199.3103.6113.7110.8157.3117.9123.5122.3141.8103.6108.5104.9171.6110.7112.7111.9
Percentage of RegulatedAndUnregulatedOperatingRevenue17.317.80.020.4-13.517.013.020.915.916.024.215.314.113.88.918.912.115.712.915.011.613.42.915.413.712.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:TotalReportableSegments17.317.70.020.3-13.516.90.020.815.916.00.015.314.013.80.018.912.115.70.015.011.713.40.015.414.313.3

us-gaap:IncomeLossFromContinuingOperations us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:UnusualOrInfrequentItem

us-gaap:OperatingSegments, duk:CommercialRenewables, duk:TexasStormUri


Income
Period End2021-03-31
Value-35.0
Percentage of IncomeLossFromContinuingOperations-3.7
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:CommercialRenewables duk:TexasStormUri0.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value7341025-319.01339-1208.01027709151188998843312306078038661321101810614941579752909699136093811406861351825-217.09951451510964546842663400409677633746674967
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue12.716.70.019.9-22.317.311.621.815.116.07.118.610.813.114.920.418.318.58.924.014.416.913.121.016.818.812.321.113.9-3.316.321.68.716.39.612.518.511.012.117.117.920.419.624.5

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity

duk:DukeEnergyCarolinas


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value226335-262.0631271404275708375356170641149414335695418418235752402411232603418455253570380457342551289388172393336417196495299316222477
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest30.832.782.147.1-22.439.338.846.942.236.039.352.124.551.638.752.641.139.447.647.653.545.233.244.344.639.936.942.246.1-210.634.438.056.740.231.546.750.7104.247.973.147.242.432.949.3
Percentage of RegulatedAndUnregulatedOperatingRevenue3.95.40.09.45.06.84.510.26.45.82.89.72.66.75.810.77.57.34.211.47.77.64.49.37.57.54.68.96.46.95.68.24.96.63.05.89.411.55.812.58.58.66.412.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas14.019.50.030.716.823.115.532.721.920.49.630.78.923.519.532.524.224.414.033.824.023.614.929.324.523.915.329.421.722.919.928.718.222.410.720.320.827.813.426.518.620.40.00.0

duk:DukeEnergyFlorida


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value26814518736526715013234625011941286205123182184250142100322274177179309269184157333232175120329-91.0180-80.0156136201
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest36.514.1-58.627.3-22.114.618.622.928.112.09.523.333.815.321.013.924.613.420.220.436.419.525.622.728.716.122.924.628.1-80.612.122.7-17.818.7-14.718.520.550.2
Percentage of RegulatedAndUnregulatedOperatingRevenue4.72.40.05.44.92.52.25.04.31.90.74.33.62.03.12.84.52.51.84.95.33.33.44.84.83.02.85.23.92.62.04.9-1.53.1-1.42.33.85.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida20.213.20.023.321.413.910.622.418.511.03.319.617.011.016.613.121.014.89.723.324.217.315.221.521.016.913.722.318.915.711.124.7-8.018.6-7.311.211.419.9

duk:DukeEnergyIndiana


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1221361211489812594203128145100154132135134196175150138199133136129731071709214713817914216413114484-41.0117-283.079-50.096117110136
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest16.613.3-37.911.1-8.112.213.313.414.414.723.112.521.716.815.514.817.214.127.912.617.715.018.55.411.414.913.410.916.7-82.514.311.325.714.915.4-4.917.6-70.819.3-7.415.215.716.314.1
Percentage of RegulatedAndUnregulatedOperatingRevenue2.12.20.02.21.82.11.52.92.22.41.62.32.32.22.33.03.22.62.53.02.62.52.41.11.92.81.72.32.32.72.32.42.22.41.5-0.63.3-7.82.3-1.32.73.23.23.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana16.618.30.019.415.918.113.125.217.918.913.018.817.918.518.024.423.619.818.824.618.919.019.39.715.621.611.618.618.421.219.021.718.719.913.4-5.717.1-41.112.6-7.015.517.80.00.0

duk:DukeEnergyOhio


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5010554847879558556837511962-37.05784466570873578605620945141-169.0-1377.01610391-33.055267411841973611633261
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest6.810.2-16.96.3-6.57.77.85.66.38.417.39.710.2-4.66.66.44.56.114.25.54.78.68.64.12.18.27.43.0-20.5634.61.67.117.8-3.410.13.111.229.510.014.35.715.54.927.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.91.70.01.21.41.30.91.21.01.31.21.81.1-0.61.01.30.81.11.31.30.71.51.10.90.41.50.90.6-2.8-20.80.31.51.5-0.61.00.42.13.31.22.41.03.21.06.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio11.019.70.017.818.415.911.317.412.915.614.925.413.5-7.111.517.810.512.513.717.88.215.113.312.14.916.010.69.2-31.8-180.51.812.611.2-4.47.23.410.312.95.311.65.213.20.028.3

duk:DukeEnergyProgress


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value221229-411.035718724618732620224717527217420619836022622390395203212923491432761352461612102112721271781191414676
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest30.122.3128.826.7-15.524.026.421.622.725.040.422.128.725.722.927.322.221.018.225.027.023.313.225.715.224.219.718.219.5-96.821.218.724.918.521.816.76.919.0
Percentage of RegulatedAndUnregulatedOperatingRevenue3.83.70.05.33.44.13.14.73.44.02.94.13.13.43.45.64.13.91.66.03.93.91.75.42.64.62.43.82.73.23.54.12.23.02.12.11.32.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress16.416.30.022.015.018.413.419.314.616.612.817.213.514.115.824.718.818.37.725.016.716.27.923.512.019.011.318.013.514.817.419.011.214.610.510.14.27.0

duk:PiedmontNaturalGas


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-6.0229130-30.0-7.0198126-28.0-9.015664-32.0-11.014582-21.0-13.015386-20.05.0166
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-0.822.3-40.8-2.20.619.317.8-1.9-1.015.814.8-2.6-1.818.19.5-1.6-1.314.417.4-1.30.718.3
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.13.70.0-0.4-0.13.32.1-0.4-0.22.51.0-0.5-0.22.41.4-0.3-0.22.70.0-0.30.13.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas-2.837.80.0-18.5-3.638.729.6-16.7-4.326.914.7-18.6-5.126.218.5-11.5-6.530.626.7-12.72.734.4

duk:ProgressEnergy


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value448333676404343615395300155500323273327484416305135668428335219603357408238525334323274535-32.0255-29.0229110217
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest61.032.550.5-33.433.440.744.430.435.840.753.234.037.836.640.928.727.342.356.936.931.344.338.135.834.738.940.5-148.827.536.9-6.326.5-5.327.216.654.2
Percentage of RegulatedAndUnregulatedOperatingRevenue7.85.410.17.55.88.96.74.92.57.55.74.45.67.57.55.32.410.28.26.24.19.36.46.74.38.25.64.94.58.0-0.54.3-0.53.43.16.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy16.713.321.116.214.219.014.411.75.916.412.910.613.916.917.414.06.122.518.214.49.420.614.416.110.218.313.812.711.919.3-1.411.7-1.38.24.810.3

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

duk:DukeEnergyCarolinas, us-gaap:OperatingSegments, duk:OperationMaintenanceandOther, duk:ElectricUtilitiesandInfrastructure


Income
Period End2020-09-30
Value8.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest0.6
Percentage of RegulatedAndUnregulatedOperatingRevenue0.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas us-gaap:OperatingSegments duk:OperationMaintenanceandOther duk:ElectricUtilitiesandInfrastructure0.0

duk:DukeEnergyProgress, us-gaap:OperatingSegments, duk:OperationMaintenanceandOther, duk:ElectricUtilitiesandInfrastructure


Income
Period End2020-09-30
Value8.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest0.6
Percentage of RegulatedAndUnregulatedOperatingRevenue0.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress us-gaap:OperatingSegments duk:OperationMaintenanceandOther duk:ElectricUtilitiesandInfrastructure0.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2020-09-30
Value0.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CorporateNonSegment0.0

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
Value3684-162.0105-316.01379518814195-1.0168100181161364327344184520239213208420334364588460209-127.0309457165330140248214103119208192233247301116226
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 RegulatedAndUnregulatedOperatingRevenue0.61.40.01.6-5.82.31.62.72.41.5-0.02.51.83.02.85.65.96.03.37.94.64.03.96.56.06.010.67.23.5-1.95.16.82.85.62.53.76.02.83.55.25.46.47.27.63.56.3

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity

duk:DukeEnergyCarolinas


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
Value1.023-90.0763765561187463351453291130229145148952581411409122015316311419311017113320910814442135125151711841061119316287115
Percentage of IncomeTaxExpenseBenefit2.827.455.672.4-11.747.458.962.852.566.3-3500.086.332.050.380.762.944.343.051.649.659.065.743.852.445.844.819.442.052.6-134.643.045.765.543.630.054.458.4146.659.788.555.247.637.753.875.050.9
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.40.01.10.71.10.91.71.31.00.62.20.61.52.23.52.62.61.73.92.72.61.73.42.72.72.13.01.82.62.23.11.82.40.72.03.54.22.14.63.03.02.74.12.63.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas0.11.30.03.72.33.73.25.54.33.62.06.91.95.27.610.78.48.65.711.68.48.05.810.79.08.66.910.06.38.67.810.96.88.32.67.07.710.14.89.96.67.20.00.00.00.0

duk:DukeEnergyFlorida


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value512839785130265749231.0433720-162.0649252361161036774931047164128906745132-34.070-35.0565373
Percentage of IncomeTaxExpenseBenefit141.733.3-24.174.3-16.121.927.430.334.824.2-100.025.637.011.0-100.617.628.115.119.622.343.131.535.622.131.119.510.927.843.1-52.814.628.9-20.621.2-25.022.624.870.9
Percentage of RegulatedAndUnregulatedOperatingRevenue0.90.50.01.20.90.50.40.80.80.40.00.60.70.3-2.81.01.70.90.61.82.01.21.41.41.91.21.22.01.51.00.72.0-0.61.2-0.60.81.52.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida3.82.50.05.04.12.82.13.73.62.10.12.93.11.8-14.84.67.75.43.58.49.16.56.36.58.16.55.68.67.36.04.19.9-3.07.2-3.24.04.47.2

duk:DukeEnergyIndiana


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
Value1924122917262147313524353435987569596670484135273962344651666060495425-22.040-116.024-19.0284144443236
Percentage of IncomeTaxExpenseBenefit52.828.6-7.427.6-5.419.022.125.022.036.8-2400.020.834.019.360.920.621.117.235.913.520.119.216.86.411.717.05.810.024.4-52.019.413.129.716.417.9-8.918.7-112.620.2-9.114.617.617.814.627.615.9
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.40.00.40.30.40.30.70.50.60.40.50.60.61.71.21.21.01.21.10.90.80.70.40.71.00.60.70.91.01.00.90.80.90.4-0.31.1-3.20.7-0.50.81.11.31.11.01.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana2.63.20.03.82.83.82.95.84.34.63.14.34.64.813.29.49.37.89.08.76.85.75.23.65.77.94.35.86.87.88.07.97.07.54.0-3.15.8-16.93.8-2.64.56.20.00.00.00.0

duk:DukeEnergyOhio


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
Value11143.01412146.0119.014201916-12.0-8.02816231332122117227.0352215-62.0-487.010.04433-12.0131229444.0463.0432185-43.069
Percentage of IncomeTaxExpenseBenefit30.616.7-1.913.3-3.810.26.35.96.414.7-2000.011.316.0-6.6-5.07.74.96.77.16.25.09.98.25.22.19.63.73.3-29.7383.53.29.620.0-3.69.34.813.642.73.422.11.618.58.528.2-37.130.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.20.00.20.20.20.10.20.20.20.30.30.3-0.2-0.10.40.30.40.20.50.20.40.30.30.10.60.40.2-1.0-7.40.20.70.6-0.20.20.20.81.20.11.20.11.20.62.2-1.31.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio2.42.60.03.02.82.81.22.22.12.64.04.13.5-2.3-1.65.93.74.42.56.52.84.13.84.81.76.04.63.4-11.7-63.81.25.44.1-1.61.71.64.04.80.55.50.44.90.09.2-6.67.1

duk:DukeEnergyProgress


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.019-115.01126423248334440563529301147276301247275231205893598960777397506827451524
Percentage of IncomeTaxExpenseBenefit16.722.671.010.5-8.230.733.725.523.446.3-4000.033.335.016.018.631.322.022.116.323.830.135.211.128.617.425.510.019.328.7-60.623.621.230.320.619.318.17.023.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.30.00.20.50.70.50.70.60.70.70.80.60.50.51.81.31.30.51.91.41.40.41.91.01.51.11.41.01.21.21.40.91.20.50.70.40.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress0.41.40.00.72.13.12.32.82.43.02.93.52.72.02.47.86.06.22.67.85.95.72.08.14.96.44.96.55.05.46.06.84.45.62.43.21.42.2

duk:PiedmontNaturalGas


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-2.02612-5.0-9.02021-10.0-2.03416-11.0-3.03519-10.0-5.05832-8.02.063
Percentage of IncomeTaxExpenseBenefit-5.631.0-7.4-4.82.814.622.1-5.3-1.435.8-1600.0-6.5-3.019.311.8-2.7-1.516.917.4-1.50.829.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.00.40.0-0.1-0.20.30.3-0.1-0.00.60.3-0.2-0.10.60.3-0.2-0.11.00.0-0.10.01.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas-0.94.30.0-3.1-4.63.94.9-6.0-1.05.93.7-6.4-1.46.34.3-5.5-2.511.69.9-5.11.113.0

duk:ProgressEnergy


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3743-77.07060604194665232945636-120.014113910431219154123871511401449919512711984207-19.0101-21.0754276
Percentage of IncomeTaxExpenseBenefit102.851.247.566.7-19.043.843.250.046.854.7-3200.056.056.019.9-74.538.742.530.216.842.164.457.741.836.041.939.616.842.460.8-93.727.245.3-11.530.6-15.030.219.673.8
Percentage of RegulatedAndUnregulatedOperatingRevenue0.60.70.01.01.11.00.71.41.10.80.51.41.00.6-2.12.22.51.80.63.33.02.31.62.32.52.41.83.02.11.81.43.1-0.31.7-0.41.11.22.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy1.41.70.02.22.42.51.62.92.42.01.23.12.21.4-5.14.95.84.81.47.46.65.33.75.25.75.74.26.85.24.73.77.5-0.84.6-0.92.71.83.6

us-gaap:IncomeTaxExpenseBenefit us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

duk:AtlanticCoastPipelineACP, duk:AtlanticCoastPipelineACP


Income
Period End2020-12-312020-09-30
Value4.015
Percentage of IncomeTaxExpenseBenefit-2.514.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:AtlanticCoastPipelineACP duk:AtlanticCoastPipelineACP0.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value572535535522554551547572542543544517518515511498486491423482500511405402403403410405413406419379381367385401232224224213203219216202212210
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 RegulatedAndUnregulatedOperatingRevenue9.98.70.07.810.29.39.08.29.28.88.97.89.28.48.87.78.78.67.67.39.69.57.66.27.26.67.46.36.96.16.95.66.56.26.86.06.56.26.75.45.76.06.35.16.45.8

us-gaap:InterestExpense dei:LegalEntity

duk:DukeEnergyCarolinas


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
Value13912411712212512311711911711011610611010710810810310310810210710799105106102100104102101104829182999593979693828991958690
Percentage of InterestExpense24.323.221.923.422.622.321.420.821.620.321.320.521.220.821.121.721.221.025.521.221.420.924.426.126.325.324.425.724.724.924.821.623.922.325.723.740.143.342.943.740.440.642.147.040.642.9
Percentage of RegulatedAndUnregulatedOperatingRevenue2.42.00.01.82.32.11.91.72.01.81.91.61.91.71.91.71.91.81.91.62.12.01.91.61.91.71.81.61.71.51.71.21.51.41.71.42.62.72.92.32.32.42.62.42.62.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas8.67.20.05.97.87.06.65.56.86.36.55.16.66.16.35.16.06.06.44.66.46.16.35.16.25.46.05.45.85.16.14.35.74.76.24.95.86.56.55.05.15.70.00.00.00.0

duk:DukeEnergyFlorida


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value8080818180848281838277736671687170706962404149505049515150494246434961626963
Percentage of InterestExpense14.015.015.115.514.415.215.014.215.315.114.214.112.713.813.314.314.414.316.312.98.08.012.112.412.412.212.412.612.112.110.012.111.313.415.815.529.728.1
Percentage of RegulatedAndUnregulatedOperatingRevenue1.41.30.01.21.51.41.31.21.41.31.31.11.21.21.21.11.31.21.20.90.80.80.90.80.90.80.90.80.80.70.70.70.70.81.10.91.91.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida6.07.30.05.26.47.86.65.26.17.66.25.05.56.46.25.15.97.36.74.53.54.04.23.53.94.54.53.44.14.43.93.53.85.15.64.55.86.2

duk:DukeEnergyIndiana


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
Value49504729424345402843424243404644444445454744444443454440444343434341333536343334343636323433
Percentage of InterestExpense8.69.38.85.67.67.88.27.05.27.97.78.18.37.89.08.89.19.010.69.39.48.610.910.910.711.210.79.910.710.610.311.311.311.28.68.715.515.214.716.016.716.416.715.816.015.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.90.80.00.40.80.70.70.60.50.70.70.60.80.70.80.70.80.80.80.70.90.80.80.70.80.70.80.60.70.60.70.60.70.70.60.51.00.91.00.91.01.01.00.81.00.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana6.76.70.03.86.86.26.35.03.95.65.45.15.85.56.25.55.95.86.15.66.76.26.65.96.35.75.65.15.95.15.85.76.15.75.34.95.34.95.34.75.55.50.00.00.00.0

duk:DukeEnergyOhio


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
Value28252726252428272430242323222422232223222120212018202620292228141818192125242627272425262830
Percentage of InterestExpense4.94.75.05.04.54.45.14.74.45.54.44.44.44.34.74.44.74.55.44.64.23.95.25.04.55.06.34.97.05.46.73.74.74.94.95.210.810.711.612.713.311.011.612.913.214.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.40.00.40.50.40.50.40.40.50.40.30.40.40.40.30.40.40.40.30.40.40.40.30.30.30.50.30.50.30.50.20.30.30.30.30.70.70.80.70.80.70.70.70.90.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio6.14.70.05.55.94.85.75.55.55.64.84.95.04.24.84.75.34.24.54.54.93.94.64.34.43.45.44.55.52.93.21.72.22.42.52.83.52.63.43.23.92.70.02.84.33.1

duk:DukeEnergyProgress


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7869666668697474817778827881766570826961646360595660625758575452474851525351
Percentage of InterestExpense13.612.912.312.612.312.513.512.914.914.214.315.915.115.714.913.114.416.716.312.712.812.314.814.713.914.915.114.114.014.012.913.712.313.113.213.022.822.8
Percentage of RegulatedAndUnregulatedOperatingRevenue1.41.10.01.01.31.21.21.11.41.21.31.21.41.31.31.01.31.41.20.91.21.21.10.91.01.01.10.91.00.90.90.80.80.80.90.81.51.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress5.84.90.04.15.55.25.34.45.85.25.75.26.05.56.14.55.86.75.93.95.34.85.24.04.74.15.24.24.94.04.53.64.13.94.53.74.94.7

duk:PiedmontNaturalGas


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value30292929332722222122211920212020192012171617
Percentage of InterestExpense5.25.45.45.66.04.94.03.83.94.13.93.73.94.13.94.03.94.12.83.53.23.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.50.00.40.60.50.40.30.40.40.30.30.40.30.30.30.30.30.00.30.30.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas14.04.80.017.916.85.35.213.110.03.84.811.09.33.84.510.99.54.03.710.88.83.5

duk:ProgressEnergy


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value200192191194199206212212219219216214203209229193196206192177160160166170166168173166167169160162160198180182193185
Percentage of InterestExpense35.035.935.737.235.937.438.837.140.440.339.741.439.240.644.838.840.342.045.436.732.031.341.042.341.241.742.241.040.441.638.242.742.054.046.845.483.282.6
Percentage of RegulatedAndUnregulatedOperatingRevenue3.53.10.02.93.73.53.53.13.73.63.53.23.63.43.93.03.53.63.42.73.13.03.12.63.02.83.12.62.82.62.62.42.73.43.22.75.45.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy7.57.70.06.18.08.58.06.58.08.58.37.08.18.19.86.78.29.58.76.06.86.97.15.86.76.67.45.86.96.77.05.97.09.18.16.58.48.8

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
Value765992-63.01304-802.093870113278209004641082500620703954686716-227.01176509694477932543864971274609-97.06881004339634435594444295288472435511427670-222.0445346109276344
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 RegulatedAndUnregulatedOperatingRevenue13.316.10.019.4-14.815.811.519.114.014.67.616.38.910.112.114.712.312.5-4.117.99.812.99.014.49.714.21.719.910.2-1.511.315.05.810.77.68.812.48.18.611.912.314.012.417.0-6.812.411.13.29.510.4

us-gaap:NetIncomeLoss dei:LegalEntity

duk:DukeEnergyCarolinas


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value225312-172.0555234339219590301293135496117323205466273270140494261271141383265292139377270286209342181
Percentage of NetIncomeLoss29.431.5273.042.6-29.236.131.244.536.732.629.145.823.452.129.248.839.837.7-61.742.051.339.029.641.148.833.8143.329.644.3-294.830.434.153.4
Percentage of RegulatedAndUnregulatedOperatingRevenue3.95.10.08.34.35.73.68.55.14.82.27.52.15.33.57.24.94.72.57.55.05.02.65.94.74.82.55.94.54.33.45.13.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas14.018.20.027.014.519.412.327.317.616.87.623.77.018.311.921.815.815.78.322.215.615.69.018.615.515.48.419.515.414.312.217.811.4

duk:DukeEnergyFlorida


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value217117148287216120106289201964024316810334412015890642061711101052161651139320514210875197-57.0
Percentage of NetIncomeLoss28.411.8-234.922.0-26.912.815.121.824.510.78.622.533.616.648.912.623.012.6-28.217.533.615.922.023.230.413.195.916.123.3-111.310.919.6-16.8
Percentage of RegulatedAndUnregulatedOperatingRevenue3.81.90.04.34.02.01.74.23.41.60.73.73.01.75.91.92.81.61.13.13.32.02.03.33.01.91.73.22.41.61.22.9-1.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida16.410.60.018.317.311.18.518.714.98.83.216.614.09.231.48.613.39.46.214.915.110.78.915.012.910.48.113.711.69.76.914.8-5.0

duk:DukeEnergyIndiana


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value103112109119819973156971107611998100361211069172129859594466810858101871138210482
Percentage of NetIncomeLoss13.511.3-173.09.1-10.110.610.411.811.812.216.411.019.616.15.112.715.512.7-31.711.016.713.719.74.912.512.559.87.914.3-116.511.910.424.2
Percentage of RegulatedAndUnregulatedOperatingRevenue1.81.80.01.81.51.71.22.21.71.81.21.81.71.60.61.91.91.61.32.01.61.81.80.71.21.81.01.61.51.71.31.61.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana14.015.00.015.613.114.310.219.313.614.39.914.513.313.74.815.114.312.09.815.912.113.314.16.19.913.77.312.811.613.411.013.811.7

duk:DukeEnergyOhio


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value399151706665487447695510046-25.065553042578923594332-52.014963439-107.0-890.06.05958
Percentage of NetIncomeLoss5.19.2-81.05.4-8.26.96.85.65.77.711.99.29.2-4.09.25.84.45.9-25.17.64.58.59.03.4-9.617.264.934.5-17.6917.50.95.917.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.71.50.01.01.21.10.81.10.81.10.91.50.8-0.41.10.80.50.71.01.40.41.10.80.5-0.92.51.16.9-1.8-13.40.10.91.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio8.617.10.014.815.613.19.915.110.913.010.921.310.0-4.813.111.76.98.111.218.25.411.49.56.9-12.825.413.198.4-20.2-116.60.77.27.2

duk:DukeEnergyProgress


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value215210-296.03461612041552781692031352161391771682461541476027113113769229851837615710113313817577
Percentage of NetIncomeLoss28.121.2469.826.5-20.121.722.120.920.622.629.120.027.828.523.925.822.420.5-26.423.025.719.714.524.615.721.278.412.316.6-137.120.117.422.7
Percentage of RegulatedAndUnregulatedOperatingRevenue3.73.40.05.13.03.42.54.02.93.32.23.32.52.92.93.82.82.61.14.12.52.51.33.51.53.01.42.51.72.02.32.61.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress15.915.00.021.313.015.211.116.512.213.79.913.710.812.113.416.812.812.15.117.110.810.55.915.47.112.66.411.58.59.411.412.26.8

duk:PiedmontNaturalGas


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-10-312016-09-302016-07-312016-06-302016-04-302016-03-312016-01-31
Value-4.0203118-25.02.0178105-18.0-7.012248-21.0-8.011063-11.0-8.0955439-12.0-7.03.06310398
Percentage of NetIncomeLoss-0.520.5-187.3-1.9-0.219.015.0-1.4-0.913.610.3-1.9-1.617.79.0-1.2-1.213.3-23.80.0-1.00.00.60.014.80.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.13.30.0-0.40.03.01.7-0.3-0.12.00.8-0.3-0.11.81.1-0.2-0.11.70.00.0-0.20.00.10.01.90.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas-1.933.50.0-15.41.034.824.7-10.7-3.321.111.0-12.2-3.719.914.2-6.0-4.019.016.822.7-7.6-4.41.617.821.321.1

duk:ProgressEnergy


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-187.0605344283229521328249123404265235444341274199104446272209128448215260136329202202195341-17.01533215563150-76.0291176184
Percentage of NetIncomeLoss296.846.4-42.930.232.739.340.027.726.537.353.037.963.235.739.927.8-45.837.953.430.126.848.139.630.1140.225.833.2-208.228.334.0-5.024.17.426.114.250.8-26.461.740.536.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.09.06.34.83.87.55.64.02.06.14.73.87.75.34.93.51.96.85.23.92.46.93.84.32.45.13.43.03.25.1-0.32.60.62.31.84.1-2.37.35.05.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy0.018.913.811.78.716.112.09.74.713.310.69.118.911.911.59.14.715.011.69.05.515.38.710.35.811.58.37.98.512.3-0.77.01.45.62.87.1-4.310.67.88.5

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

duk:DukeEnergyCarolinas, duk:MembersEquity


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value225312-172.0555234339219590301293135496117323205466273270140494261271141383265292139377270286209342
Percentage of NetIncomeLoss29.431.5273.042.6-29.236.131.244.536.732.629.145.823.452.129.248.839.837.7-61.742.051.339.029.641.148.833.8143.329.644.3-294.830.434.1
Percentage of RegulatedAndUnregulatedOperatingRevenue3.95.10.08.34.35.73.68.55.14.82.27.52.15.33.57.24.94.72.57.55.05.02.65.94.74.82.55.94.54.33.45.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas duk:MembersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyFlorida, duk:MembersEquity


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value21711714828721612010628920196402431681033441201589064206171110105
Percentage of NetIncomeLoss28.411.8-234.922.0-26.912.815.121.824.510.78.622.533.616.648.912.623.012.6-28.217.533.615.922.0
Percentage of RegulatedAndUnregulatedOperatingRevenue3.81.90.04.34.02.01.74.23.41.60.73.73.01.75.91.92.81.61.13.13.32.02.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida duk:MembersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyIndiana, duk:MembersEquity


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value103112109119819973156971103612110691721298595
Percentage of NetIncomeLoss13.511.3-173.09.1-10.110.610.411.811.812.25.112.715.512.7-31.711.016.713.7
Percentage of RegulatedAndUnregulatedOperatingRevenue1.81.80.01.81.51.71.22.21.71.80.61.91.91.61.32.01.61.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana duk:MembersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value399151706665487447695510046-25.065553042578923594332-52.014963439-107.0-890.06.059
Percentage of NetIncomeLoss5.19.2-81.05.4-8.26.96.85.65.77.711.99.29.2-4.09.25.84.45.9-25.17.64.58.59.03.4-9.617.264.934.5-17.6917.50.95.9
Percentage of RegulatedAndUnregulatedOperatingRevenue0.71.50.01.01.21.10.81.10.81.10.91.50.8-0.41.10.80.50.71.01.40.41.10.80.5-0.92.51.16.9-1.8-13.40.10.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyProgress, duk:MembersEquity


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value215210-296.03461612041552781692036027113113769
Percentage of NetIncomeLoss28.121.2469.826.5-20.121.722.120.920.622.6-26.423.025.719.714.5
Percentage of RegulatedAndUnregulatedOperatingRevenue3.73.40.05.13.03.42.54.02.93.31.14.12.52.51.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress duk:MembersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:PiedmontNaturalGas, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-4.0203118-25.02.0178105-18.0-7.012248-21.0-8.011063-11.0-8.09554-12.03.0103
Percentage of NetIncomeLoss-0.520.5-187.3-1.9-0.219.015.0-1.4-0.913.610.3-1.9-1.617.79.0-1.2-1.213.3-23.8-1.00.614.8
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.13.30.0-0.40.03.01.7-0.3-0.12.00.8-0.3-0.11.81.1-0.2-0.11.70.0-0.20.11.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-67.051503-70.0-90.0-48.0-67.0-19.0-84.0-7.0-10.0-16.02.02.00.01.03.01.05.05.03.05.05.03.04.03.03.0-5.04.04.04.04.03.00.02.04.04.04.02.0-2.06.02.02.0-4.05.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-1.20.80.0-1.0-1.7-0.8-1.1-0.3-1.4-0.1-0.2-0.20.00.00.00.00.10.00.10.10.10.10.10.00.10.00.1-0.10.10.10.10.10.10.00.00.10.10.10.1-0.10.20.10.1-0.10.2

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity

duk:ProgressEnergy


Net
Period End2020-12-312020-09-302020-06-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.01.00.00.01.0-1.00.02.02.02.03.02.03.02.02.03.02.03.03.03.02.03.03.01.00.01.01.01.00.01.02.02.01.02.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest0.0-1.4-0.0-0.0-1.214.3-0.0-12.5100.0100.00.0200.0100.0200.040.060.066.760.060.0100.050.0100.0100.0-20.00.025.025.025.00.00.0100.050.025.050.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.00.0-0.00.00.00.00.00.10.00.10.00.00.00.00.10.10.00.00.00.10.00.00.00.00.00.00.00.00.00.00.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy0.00.00.00.00.0-0.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.00.00.10.10.00.1

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

us-gaap:OperatingSegments, duk:CommercialRenewables, duk:TexasStormUri


Net
Period End2021-03-31
Value-12.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest-23.5
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.2
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:CommercialRenewables duk:TexasStormUri0.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312013-03-31
Value751953-77.01265-817.08996601327820900634
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue13.015.50.018.8-15.115.110.819.114.014.610.7

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
Value13711014247-1831.090147154133158106168146621151241171157639107871277495871081371221312118770116164165109129116123157151209136124120
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 RegulatedAndUnregulatedOperatingRevenue2.41.80.00.7-33.81.52.42.22.32.61.72.52.61.02.01.92.12.01.40.62.11.62.41.11.71.41.92.12.12.03.51.31.22.02.92.53.03.63.43.14.44.16.13.43.83.3

us-gaap:NonoperatingIncomeExpense dei:LegalEntity

duk:DukeEnergyCarolinas


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value4448494243434534413145343539-1.04050502929364843394750
Percentage of NonoperatingIncomeExpense32.143.634.589.4-2.347.830.622.130.819.642.520.224.062.9-0.932.342.743.533.341.431.029.139.430.238.231.8
Percentage of RegulatedAndUnregulatedOperatingRevenue0.80.80.00.60.80.70.70.50.70.50.70.50.60.6-0.00.60.90.90.40.50.60.71.21.11.21.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas2.72.80.02.02.72.52.51.62.41.82.51.62.12.2-0.11.92.92.91.51.82.12.52.72.62.53.1

duk:DukeEnergyFlorida


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value181817111510.09.0141213112826213.01919206.05.08.0119.09.0
Percentage of NonoperatingIncomeExpense13.116.412.023.4-0.811.16.19.19.08.210.416.717.833.92.615.316.217.46.97.16.96.78.37.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.30.00.20.30.20.10.20.20.20.20.40.50.30.10.30.30.30.10.10.10.20.30.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida1.41.60.00.71.20.90.70.90.91.20.91.92.21.90.31.41.62.10.50.40.80.80.80.9

duk:DukeEnergyIndiana


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value10.09.09.09.09.010.06.08.08.0199.0236.07.05.0121110.04.06.04.02419232621
Percentage of NonoperatingIncomeExpense7.38.26.319.1-0.511.14.15.26.012.08.513.74.111.34.39.79.48.74.68.63.414.517.417.821.113.4
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.10.00.10.20.20.10.10.10.30.10.30.10.10.10.20.20.20.10.10.10.40.50.60.70.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana1.41.20.01.21.51.40.81.01.12.51.22.80.81.00.71.51.51.30.50.90.63.32.83.33.63.4

duk:DukeEnergyOhio


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value5.05.05.04.04.03.05.04.06.09.06.03.08.06.02.05.05.05.01.01.02.05.04.04.08.04.0
Percentage of NonoperatingIncomeExpense3.64.53.58.5-0.23.33.42.64.55.75.71.85.59.71.74.04.34.31.11.41.73.03.73.16.52.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.00.10.10.10.10.10.10.10.10.00.10.10.00.10.10.10.00.00.00.10.10.10.20.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio1.10.90.00.80.90.61.00.81.41.71.20.61.71.10.41.11.11.00.10.10.30.70.60.41.00.6

duk:DukeEnergyProgress


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value2024231119222527242426241918-19.0272631218.014211620
Percentage of NonoperatingIncomeExpense14.621.816.223.4-1.024.417.017.518.015.224.514.313.029.0-16.521.822.227.024.111.412.112.714.715.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.40.00.20.40.40.40.40.40.40.40.40.30.3-0.30.40.50.50.30.10.20.30.40.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress1.51.70.00.71.51.61.81.61.71.61.91.51.51.2-1.51.82.22.51.50.71.21.51.51.8

duk:PiedmontNaturalGas


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1817161616129.07.06.06.06.06.04.05.0-13.03.01.03.02.01.07.0
Percentage of NonoperatingIncomeExpense13.115.511.334.0-0.913.36.14.54.53.85.73.62.78.1-11.32.40.92.62.62.66.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.30.00.20.30.20.10.10.10.10.10.10.10.1-0.20.00.00.10.00.00.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas8.42.80.09.98.12.32.14.22.91.01.43.51.90.9-2.91.60.50.60.60.63.8

duk:ProgressEnergy


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value384340243332354134313751423516363640261423322639
Percentage of NonoperatingIncomeExpense27.739.128.251.1-1.835.623.826.625.619.634.930.428.856.513.929.030.834.829.920.019.819.423.930.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.70.70.00.40.60.50.60.60.60.50.60.80.70.60.30.60.60.70.40.20.40.50.71.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy1.41.70.00.81.31.31.31.31.21.21.41.71.71.40.71.31.51.80.90.61.11.11.11.9

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
Value11691450741814117714881109192912981373871157997912561262169513871437888202211451333977168812461456988161911165812031743821121576710787864955177676798146811033-14.0761595445528681
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 RegulatedAndUnregulatedOperatingRevenue20.323.60.027.021.725.018.227.822.122.314.223.817.320.521.826.125.025.115.930.722.024.818.426.022.324.017.825.318.80.919.726.014.020.613.516.022.013.615.419.319.222.219.826.2-0.421.219.113.118.120.6

us-gaap:OperatingIncomeLoss dei:LegalEntity

duk:DukeEnergyCarolinas


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value321411-194.0711353484347793451435241713224482403777485484302815464481296666483515318630438509420604351434216440386475245541331363264521313347
Percentage of OperatingIncomeLoss27.528.3-262.239.230.032.531.341.134.731.727.745.222.938.431.945.835.033.734.040.340.536.130.339.538.835.432.238.939.2877.634.934.742.835.728.240.849.196.047.470.548.744.638.850.4-2235.745.6
Percentage of RegulatedAndUnregulatedOperatingRevenue5.66.70.010.66.58.15.711.47.77.13.910.84.07.96.912.08.78.45.412.48.98.95.610.38.68.55.79.97.47.76.99.06.07.43.86.510.813.17.313.69.49.97.713.29.59.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas19.924.00.034.521.927.719.536.726.324.913.634.113.427.323.436.428.128.218.036.627.727.619.032.328.327.119.232.525.025.424.531.522.125.113.422.723.931.616.729.020.623.40.00.00.00.0

duk:DukeEnergyFlorida


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value330207251435332224205413321188107331245173234240306196155373300213216357315227205378276219151369-53.0221-29.0207196255
Percentage of OperatingIncomeLoss28.214.3339.224.028.215.118.521.424.713.712.321.025.013.818.514.222.113.617.518.426.216.022.121.125.315.620.723.324.7377.612.621.2-6.518.2-3.819.224.951.5
Percentage of RegulatedAndUnregulatedOperatingRevenue5.73.40.06.56.13.83.46.05.53.11.75.04.32.84.03.75.53.42.85.75.84.04.15.55.63.73.75.94.63.32.55.5-0.93.7-0.53.15.57.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida24.918.80.027.826.620.716.526.723.717.38.622.620.415.521.417.125.720.415.027.026.520.818.424.924.620.917.925.422.519.613.927.7-4.622.8-2.614.916.425.2

duk:DukeEnergyIndiana


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16117715916813115813323514816913317316916817023021018617623917417617111714621013018217821518120316818193-30.0134-272.085-42.0109130127149109121
Percentage of OperatingIncomeLoss13.812.2214.99.311.110.612.012.211.412.315.311.017.313.413.513.615.112.919.811.815.213.217.56.911.714.413.211.215.9370.715.011.620.514.912.1-2.817.0-54.916.4-5.516.116.018.614.4-778.615.9
Percentage of RegulatedAndUnregulatedOperatingRevenue2.82.90.02.52.42.72.23.42.52.72.22.63.02.72.93.53.83.23.23.63.33.33.21.82.63.52.32.83.03.23.03.02.93.11.6-0.43.7-7.52.5-1.13.13.53.73.83.33.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana21.923.80.022.121.222.818.629.120.722.017.321.122.923.022.828.728.324.524.029.524.824.625.615.621.326.616.423.023.825.424.226.924.025.014.9-4.219.6-39.513.6-5.817.619.70.00.00.00.0

duk:DukeEnergyOhio


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value73125761069910078108741049313977-21.07610265839010655967376431117458-142.0-1358.044116108-17.0744295138651165913555279-781.0222
Percentage of OperatingIncomeLoss6.28.6102.75.88.46.77.05.65.77.610.78.87.9-1.76.06.04.75.810.15.24.87.27.54.53.57.67.53.6-12.7-2341.43.76.713.2-1.49.63.912.127.912.615.18.716.68.127.05578.629.2
Percentage of RegulatedAndUnregulatedOperatingRevenue1.32.00.01.61.81.71.31.61.31.71.52.11.4-0.31.31.61.21.41.61.61.11.81.41.20.81.81.30.9-2.4-20.50.71.71.8-0.31.30.62.73.81.92.91.73.71.67.1-23.86.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio16.023.50.022.423.420.116.022.117.119.618.429.616.8-4.015.321.714.916.017.621.712.918.616.216.510.618.915.413.0-26.7-178.05.114.213.3-2.39.75.513.215.18.413.88.515.40.030.2-120.322.7

duk:DukeEnergyProgress


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value279274-368.041223629323637325930022733023326925641128228613543825525813039418431618028521225825130316621214817283107
Percentage of OperatingIncomeLoss23.918.9-497.322.720.119.721.319.320.021.826.120.923.821.420.324.220.319.915.221.722.319.413.323.314.821.718.217.619.0444.820.917.420.217.419.316.010.621.6
Percentage of RegulatedAndUnregulatedOperatingRevenue4.84.50.06.14.44.93.95.44.44.93.75.04.14.44.46.35.15.02.46.74.94.82.46.13.35.23.24.53.63.94.14.52.83.62.62.62.32.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress20.719.60.025.319.021.916.922.118.720.216.620.918.018.420.528.223.523.511.527.721.019.711.226.515.421.815.120.817.818.120.721.214.617.413.112.37.69.8

duk:PiedmontNaturalGas


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-10-312016-09-302016-06-302016-04-302016-03-312016-01-31
Value6.0241143-17.010.0213139-13.06.017279-19.05.0161115-4.05.017096-50.0-4.014104167171
Percentage of OperatingIncomeLoss0.516.6193.2-0.90.814.312.5-0.70.512.59.1-1.20.512.89.1-0.20.411.810.80.0-0.21.20.012.50.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.13.90.0-0.30.23.62.3-0.20.12.81.3-0.30.12.62.0-0.10.13.00.00.0-0.10.30.03.10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas2.839.80.0-10.55.141.632.7-7.72.929.718.2-11.02.329.125.9-2.22.534.029.8-29.1-2.57.729.534.636.9

duk:ProgressEnergy


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value610482-113.084657051744778658048833466348444749365759148729281456047535175650454938866548847740367111443011837927736316687433447
Percentage of OperatingIncomeLoss52.233.2-152.746.648.434.740.340.744.735.538.342.049.435.639.138.842.633.932.940.348.935.635.944.840.437.739.341.143.7822.433.538.513.935.415.435.235.273.33.189.663.854.9
Percentage of RegulatedAndUnregulatedOperatingRevenue10.67.80.012.610.58.77.311.39.97.95.510.08.67.38.510.110.68.55.212.410.78.86.611.79.09.17.010.48.27.26.610.01.97.32.15.67.710.00.517.312.312.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy22.819.20.026.522.821.316.924.221.119.012.821.819.417.421.022.924.722.313.227.523.920.415.025.820.421.616.623.220.218.817.524.35.019.75.313.612.117.30.925.019.120.6

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-89.02627-80.012-77.023-15.0-20.0-12.0-26.04.0-2.011132.03.08.0627-5.05241-29.0-135.023-133.0-84.0-97.02223-21.0-4.0-91.01734-20.0-150.060
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-1.50.40.0-1.20.2-1.30.4-0.2-0.3-0.2-0.40.1-0.00.20.20.00.10.111.2-0.11.00.8-0.5-2.10.4-2.2-1.5-1.50.40.3-0.3-0.1-1.50.30.6-0.3-4.21.7

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

duk:DukeEnergyFlorida


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-302012-03-31
Value1.0-1.0-2.01.0-1.01.0-1.01.00.01.00.00.0-1.00.00.01.01.01.0-1.01.00.01.00.00.00.01.00.0-1.01.0261.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-1.1-3.8-7.4-1.2-8.3-1.3-4.3-6.7-0.0-8.3-0.00.050.00.00.050.033.312.5-0.2-20.00.02.4-0.0-0.00.04.3-0.025.02.9-130.01.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.00.00.0-0.00.0-0.00.00.00.00.00.0-0.00.00.00.00.00.0-0.00.00.00.00.00.00.00.00.0-0.00.00.40.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida0.1-0.10.00.1-0.10.1-0.10.10.00.10.00.0-0.10.00.00.10.10.1-0.10.10.00.10.00.00.00.10.0-0.10.11.90.1

duk:ProgressEnergy


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.0-2.02.01.02.00.02.03.03.04.02.02.02.01.02.07.03.02.02.03.03.0-7.00.01.0-1.010.03.04.02.00.04.02.02.0-1.098-4.05.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-2.2-7.4-2.58.3-2.60.0-13.3-15.0-25.0-15.450.0-100.018.27.7100.0233.337.50.3-40.05.87.324.1-0.04.30.8-11.9-3.118.28.7-0.0-100.0-2.211.8-2.9-490.02.78.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.00.00.00.00.10.00.10.00.00.00.00.00.10.10.00.00.10.1-0.10.00.0-0.00.20.00.10.00.00.10.00.0-0.01.5-0.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy0.10.00.10.00.10.00.10.10.10.20.10.10.10.00.10.30.10.10.10.10.1-0.30.00.0-0.00.40.10.20.10.00.10.10.1-0.03.5-0.20.2

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

duk:DukeEnergyFlorida, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1.0-1.0-2.01.0-1.01.0-1.01.00.01.00.00.0-1.00.01.01.01.0-1.01.00.01.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-1.1-3.8-7.4-1.2-8.3-1.3-4.3-6.7-0.0-8.3-0.00.050.00.050.033.312.5-0.2-20.00.02.4
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.00.00.0-0.00.0-0.00.00.00.00.00.0-0.00.00.00.00.0-0.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.0-2.00.01.00.00.01.01.03.00.02.0-1.03.01.01.0-1.00.01.01.0-9.0-3.01.01.07.01.00.01.04.04.00.01.0-2.0-1.00.01.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-1.1-7.4-0.08.30.0-0.0-5.0-8.3-11.50.0-100.0-7.7150.033.312.5-0.2-0.01.92.431.02.24.3-0.8-8.3-1.00.04.3-19.0-100.0-0.05.9-5.95.0-0.01.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.00.00.00.00.00.00.00.0-0.00.00.00.0-0.00.00.00.0-0.2-0.00.00.00.10.00.00.00.10.10.00.0-0.0-0.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.01.02.01.01.01.01.01.01.02.01.02.01.02.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-0.03.87.4-1.28.3-1.34.3-6.7-5.0-16.7-3.850.0-50.018.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1.0-1.0-2.01.0-1.01.0-1.01.01.00.00.0-1.01.01.01.01.0-1.01.00.01.00.00.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-1.1-3.8-7.4-1.2-8.3-1.3-4.3-6.7-5.0-0.00.050.07.750.033.312.5-0.2-20.00.02.4-0.0-0.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.00.00.0-0.00.0-0.00.00.00.00.0-0.00.00.00.00.0-0.00.00.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, us-gaap:Parent


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.0-2.02.01.02.00.02.03.03.04.02.02.02.01.02.07.03.02.02.03.03.0-1.010.03.03.02.00.04.02.02.0-1.098-4.05.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-2.2-7.4-2.58.3-2.60.0-13.3-15.0-25.0-15.450.0-100.018.27.7100.0233.337.50.3-40.05.87.30.8-11.9-3.113.68.7-0.0-100.0-2.211.8-2.9-490.02.78.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.00.00.00.00.10.00.10.00.00.00.00.00.10.10.00.00.10.1-0.00.20.00.10.00.00.10.00.0-0.01.5-0.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.02.05.01.0-1.01.08.0-2.03.0-9.01.01.01.01.00.01.01.0-13.00.0-12.0-3.07.0-5.03.0-1.0330.02.03.034-21.02.04.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-0.07.718.5-1.2-8.3-1.334.813.3-15.034.625.0-50.09.17.70.033.312.5-2.1-0.041.42.230.43.8-3.6-4.3-157.1-0.0-2.217.6100.0105.0-1.36.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.0-0.00.00.1-0.00.1-0.10.00.00.00.00.00.00.0-0.20.0-0.2-0.00.1-0.10.1-0.00.50.00.00.10.6-0.30.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-92.02523-79.05.0-65.017-15.0-27.0-16.0-19.03.0-1.013
Percentage of OtherComprehensiveIncomeLossNetOfTax103.496.285.298.841.784.473.9100.0135.0133.373.175.050.0118.2
Percentage of RegulatedAndUnregulatedOperatingRevenue-1.60.40.0-1.20.1-1.10.3-0.2-0.5-0.3-0.30.0-0.00.2
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302012-12-312012-09-30
Value4.0-8.0-2.0-2.06.01.0-2.02.04.04.02.00.0-2.0-3.03.02.04.04.0-5.00.03.04.0-1.0-2.01.00.02.02.00.03.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-4.5-30.8-7.42.550.0-1.3-8.7-13.3-20.0-33.3-7.70.0100.0-27.323.1100.0133.350.0-0.8-0.05.89.83.41.5-1.2-0.0-9.5-50.00.0-15.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.1-0.10.0-0.00.10.0-0.00.00.10.10.00.0-0.0-0.00.10.00.10.1-0.10.00.10.1-0.0-0.00.00.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-30
Value-1.07.01.00.02.0-14.0-1.0-1.03.01.0-1.0-5.0-1.0-4.03.04.00.01.0-2.00.00.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax1.126.93.7-0.016.718.2-0.220.05.82.43.43.7-4.33.0-3.6-4.10.04.39.5-0.00.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.00.10.00.00.0-0.2-0.0-0.00.10.0-0.0-0.1-0.0-0.10.10.10.00.0-0.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-88.01926-80.010.0-63.023-15.0-20.0-12.0-26.04.0-2.011132.03.08.0628-4.04940-28.0-130.024-129.0-87.0-101.02222-19.0-4.0-87.01734-20.0-146.060
Percentage of OtherComprehensiveIncomeLossNetOfTax98.973.196.3100.083.381.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.280.094.297.696.696.3104.397.0103.6104.1100.095.790.5100.095.6100.0100.0100.097.3100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-1.50.30.0-1.20.2-1.10.4-0.2-0.3-0.2-0.40.1-0.00.20.20.00.10.111.3-0.10.90.7-0.5-2.00.4-2.1-1.6-1.60.40.3-0.3-0.1-1.50.30.6-0.3-4.11.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value128127143127137461221048911572131110869788818654999279104577274581098995805454801061327089798397-117.0-667.011688-91.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue2.22.10.01.92.50.82.01.51.51.91.22.01.91.41.71.41.51.51.01.51.81.52.00.91.31.21.01.71.51.41.30.80.91.41.92.02.02.52.32.12.7-3.2-19.42.92.7-2.5

Preferred Stock Dividends Income Statement Impact

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:PreferredStockDividendsIncomeStatementImpact


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value143914391539141512
Percentage of PreferredStockDividendsIncomeStatementImpact100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.60.00.60.30.70.20.20.2

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value698941-150.01234-892.089060713237488934541066502622703955689717-222.011815126994829355478671001269613-93.06921008342634437598448299290470441513429666-217.0445
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 RegulatedAndUnregulatedOperatingRevenue12.115.30.018.4-16.515.09.919.112.714.57.416.18.910.112.114.712.412.5-4.018.09.813.09.114.49.814.31.819.810.3-1.411.315.05.810.77.78.912.58.28.611.912.514.012.516.9-6.612.4

us-gaap:ProfitLoss dei:LegalEntity

duk:ProgressEnergy


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value411290-187.0606344283229521329248123406267237447343277201106449274212131451217263139330202203196342-17.01543415764152-74.0293178185
Percentage of ProfitLoss58.930.8124.749.1-38.631.837.739.444.027.827.138.153.238.163.635.940.228.0-47.738.053.530.327.248.239.730.3139.026.033.0-218.328.333.9-5.024.37.826.314.350.8-25.562.340.436.1
Percentage of RegulatedAndUnregulatedOperatingRevenue7.14.70.09.06.34.83.87.55.64.02.06.14.73.97.75.35.03.51.96.85.33.92.57.03.94.32.55.23.43.13.25.1-0.32.60.62.31.84.2-2.27.45.05.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy15.311.60.019.013.811.78.716.112.09.64.713.310.79.219.012.011.69.24.815.111.79.15.615.48.810.45.911.58.38.08.512.4-0.77.01.55.62.87.2-4.210.67.88.5

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

duk:ProgressEnergy, us-gaap:NoncontrollingInterest


Profit
Period End2020-12-312020-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.01.01.0-1.00.02.02.02.03.02.03.02.02.03.02.03.03.03.02.03.03.01.00.01.01.01.0
Percentage of ProfitLoss-0.00.10.1-0.10.00.20.40.30.40.20.40.3-0.90.30.40.40.60.30.40.33.00.10.0-1.10.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.0-0.00.00.00.00.00.10.00.10.00.00.00.00.10.10.00.00.00.10.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value411290-187.0605344283229521328249123404265235444341274199104446272209128448215260136329202202195341
Percentage of ProfitLoss58.930.8124.749.0-38.631.837.739.443.927.927.137.952.837.863.235.739.827.8-46.837.853.129.926.647.939.330.0136.025.933.0-217.228.233.8
Percentage of RegulatedAndUnregulatedOperatingRevenue7.14.70.09.06.34.83.87.55.64.02.06.14.73.87.75.34.93.51.96.85.23.92.46.93.84.32.45.13.43.03.25.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value411290-187.0605344283229521328249123404265235444341274199104446272209128448215260136329202202195341
Percentage of ProfitLoss58.930.8124.749.0-38.631.837.739.443.927.927.137.952.837.863.235.739.827.8-46.837.853.129.926.647.939.330.0136.025.933.0-217.228.233.8
Percentage of RegulatedAndUnregulatedOperatingRevenue7.14.70.09.06.34.83.87.55.64.02.06.14.73.87.75.34.93.51.96.85.23.92.46.93.84.32.45.13.43.03.25.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Regulated And Unregulated Operating Revenue

us-gaap:RegulatedAndUnregulatedOperatingRevenue

us-gaap:RegulatedAndUnregulatedOperatingRevenue


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value57586150577767215421594961036940587361636115662856436135579964825555572955776576521353775322648355896065555963955949662461126709587958985695672235773630336839643534366334453946328735943110339629133312
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue dei:LegalEntity

duk:DukeEnergyCarolinas


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
Value161017161599205816101748177621621713174417752090167217631721213617291716168122261675174015602061170719011658193817552000171519191591172916091939161615011466186816071552
Percentage of RegulatedAndUnregulatedOperatingRevenue28.027.927.730.629.729.429.131.229.228.329.031.529.628.729.733.031.130.030.133.932.132.429.331.830.531.329.830.329.530.228.128.627.129.328.328.845.241.343.547.145.542.4
Percentage of RegulatedAndUnregulatedOperatingRevenue28.027.927.730.629.729.429.131.229.228.329.031.529.628.729.733.031.130.030.133.932.132.429.331.830.531.329.830.329.530.228.128.627.129.328.328.845.241.343.547.145.542.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyFlorida


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value132511011291156712501080124415481353108612411462120311151095140111919591030138111331024117414361281108611431491122511161085133211429681095138811961010
Percentage of RegulatedAndUnregulatedOperatingRevenue23.017.922.323.323.118.220.422.323.017.620.322.121.318.218.921.621.416.718.521.021.719.022.122.222.917.920.623.320.616.817.819.919.416.419.220.633.427.8
Percentage of RegulatedAndUnregulatedOperatingRevenue23.017.922.323.323.118.220.422.323.017.620.322.121.318.218.921.621.416.718.521.021.719.022.122.222.917.920.623.320.616.817.819.919.416.419.220.633.427.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyIndiana


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
Value735745725761617692715807714768771819738731745802742758733809702714667749686788792790748845747755700724626718685688625718620659
Percentage of RegulatedAndUnregulatedOperatingRevenue12.812.112.511.311.411.611.711.612.212.512.612.413.111.912.812.413.413.213.112.313.513.312.511.612.313.014.212.412.612.812.211.311.912.311.010.719.219.018.618.117.518.0
Percentage of RegulatedAndUnregulatedOperatingRevenue12.812.112.511.311.411.611.711.612.212.512.612.413.111.912.812.413.413.213.112.313.513.312.511.612.313.014.212.412.612.812.211.311.912.311.010.719.219.018.618.117.518.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyOhio


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value456532464473423498487489433531505469459524497471437518511489428516452462405586480446531763868819811747766757717912770838694879780923649977
Percentage of RegulatedAndUnregulatedOperatingRevenue7.98.78.07.07.88.48.07.07.48.68.37.18.18.58.67.37.99.09.27.48.29.68.57.17.29.78.67.08.911.514.212.213.812.713.511.320.025.122.921.119.624.022.623.419.727.2
Percentage of RegulatedAndUnregulatedOperatingRevenue7.98.78.07.07.88.48.07.07.48.68.37.18.18.58.67.37.99.09.27.48.29.68.57.17.29.78.67.08.911.514.212.213.812.713.511.320.025.122.921.119.624.022.623.419.727.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyProgress


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value13491401121516261243133813981688138714841366158212911460125114601199121911741583121313071160148811931449119613671191142212111430113512161128139810901090
Percentage of RegulatedAndUnregulatedOperatingRevenue23.422.821.024.222.922.522.924.323.624.122.323.922.923.821.622.521.621.321.124.123.324.321.823.021.323.921.521.420.021.519.821.319.320.619.820.830.530.0
Percentage of RegulatedAndUnregulatedOperatingRevenue23.422.821.024.222.922.522.924.323.624.122.323.922.923.821.622.521.621.321.124.123.324.321.823.021.323.921.521.420.021.519.821.319.320.619.820.830.530.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:PiedmontNaturalGas


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-10-312016-09-302016-07-312016-06-302016-04-302016-03-312016-01-31
Value215606426162197512425168209579435172215553444183201500322172158160182353483464
Percentage of RegulatedAndUnregulatedOperatingRevenue3.79.97.42.43.68.67.02.43.69.47.12.63.89.07.72.83.68.75.80.02.40.03.50.09.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue3.79.97.42.43.68.67.02.43.69.47.12.63.89.07.72.83.68.70.00.02.40.03.50.09.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:ProgressEnergy


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
Value267925052510319724982422264432422744257226093045249825762348286423922179220829652348233223362929247625362341286324212541230027662281218622272788228821021752275322692174
Percentage of RegulatedAndUnregulatedOperatingRevenue46.540.743.447.646.140.743.346.746.741.742.745.944.342.040.544.243.138.039.645.145.043.443.945.244.341.842.144.840.738.437.641.238.837.139.141.564.057.952.069.564.259.4
Percentage of RegulatedAndUnregulatedOperatingRevenue46.540.743.447.646.140.743.346.746.741.742.745.944.342.040.544.243.138.039.645.145.043.443.945.244.341.842.144.840.738.437.641.238.837.139.141.564.057.952.069.564.259.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

duk:DukeEnergyOhio, us-gaap:OperatingSegments, duk:ElectricUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-03-312017-06-302017-03-312016-06-302016-03-31
Value343363335394330346357408336355336329337323340
Percentage of RegulatedAndUnregulatedOperatingRevenue6.05.95.85.96.15.85.85.95.75.85.55.95.96.26.3
Percentage of RegulatedAndUnregulatedOperatingRevenue6.05.95.85.96.15.85.85.95.75.85.55.95.96.26.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:OperatingSegments duk:ElectricUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyOhio, us-gaap:OperatingSegments, duk:GasUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-03-312017-06-302017-03-312016-06-302016-03-31
Value1131691297993152130819717617410017098170
Percentage of RegulatedAndUnregulatedOperatingRevenue2.02.72.21.21.72.62.11.21.72.92.81.83.01.93.2
Percentage of RegulatedAndUnregulatedOperatingRevenue2.02.72.21.21.72.62.11.21.72.92.81.83.01.93.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:OperatingSegments duk:GasUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyOhio, us-gaap:OperatingSegments, duk:TotalReportableSegments


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302017-06-302017-03-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value456532464473423498487489433429507421510434456396586480447412575456438
Percentage of RegulatedAndUnregulatedOperatingRevenue7.98.78.07.07.88.48.07.07.47.78.88.19.58.27.07.19.78.67.06.98.77.56.5
Percentage of RegulatedAndUnregulatedOperatingRevenue7.98.78.07.07.88.48.07.07.47.78.88.19.58.27.07.19.78.67.06.98.77.56.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio us-gaap:OperatingSegments duk:TotalReportableSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-50.0-51.0-49.0-49.0-51.0-50.0-51.0-49.0-51.0-49.0-50.0-49.0-49.0-51.0-53.0-49.0-49.0-49.0-47.0-24.0-29.0-25.0-26.0-28.0-27.0-31.0-30.0-32.0-32.0-30.0-31.0-44.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.9-0.8-0.8-0.7-0.9-0.8-0.8-0.7-0.9-0.8-0.8-0.7-0.9-0.8-0.9-0.8-0.9-0.9-0.8-0.4-0.6-0.5-0.5-0.4-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.7
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.9-0.8-0.8-0.7-0.9-0.8-0.8-0.7-0.9-0.8-0.8-0.7-0.9-0.8-0.9-0.8-0.9-0.9-0.8-0.4-0.6-0.5-0.5-0.4-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:CorporateNonSegment, us-gaap:AllOtherSegments


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value27262424262324252521-12.03432359116353377163029
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.40.40.40.50.40.40.40.40.3-0.20.50.60.61.60.20.60.61.40.20.60.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.40.40.40.50.40.40.40.40.3-0.20.50.60.61.60.20.60.61.40.20.60.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CorporateNonSegment us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, duk:ElectricUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.08.08.08.08.09.09.08.08.08.08.07.08.08.08.07.08.0-8.06.08.08.0-8.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.10.20.10.10.10.10.10.10.10.10.10.10.1-0.10.10.10.2-0.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.10.20.10.10.10.10.10.10.10.10.10.10.1-0.10.10.10.2-0.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination duk:ElectricUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, duk:GasUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2223232424242424242426242425252322-22.0230.02.0-1.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.40.40.40.40.40.40.30.40.40.40.40.40.40.40.40.4-0.40.40.00.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.40.40.40.40.40.40.30.40.40.40.40.40.40.40.40.4-0.40.40.00.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination duk:GasUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:IntersegmentElimination, duk:TotalReportableSegments


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value2931313232333332323234313233333030-30.0298.010.0-9.065-9.0-9.0-10.0-10.0-11.0-11.0-10.0-5.0-20.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.50.50.50.60.60.50.50.50.50.60.50.60.50.60.50.5-0.50.50.10.2-0.21.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.50.50.50.60.60.50.50.50.50.60.50.60.50.60.50.5-0.50.50.10.2-0.21.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination duk:TotalReportableSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, us-gaap:AllOtherSegments


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2120181719171817191716181718201919-19.0181619-16.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.30.30.30.40.30.30.20.30.30.30.30.30.30.30.30.3-0.30.30.20.4-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.30.30.30.40.30.30.20.30.30.30.30.30.30.30.30.3-0.30.30.20.4-0.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, duk:CommercialRenewables


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value11911912412612312912513811810613012711910112795110128119139112114
Percentage of RegulatedAndUnregulatedOperatingRevenue2.11.92.11.92.32.22.02.02.01.72.11.92.11.62.21.52.02.22.12.12.12.1
Percentage of RegulatedAndUnregulatedOperatingRevenue2.11.92.11.92.32.22.02.02.01.72.11.92.11.62.21.52.02.22.12.12.12.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:CommercialRenewables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, duk:ElectricUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value5335528151246379503451835450657754755329546762605223532351206122515849474960633250015089
Percentage of RegulatedAndUnregulatedOperatingRevenue92.785.988.794.992.987.189.394.893.286.589.494.492.686.888.394.492.986.488.996.395.994.6
Percentage of RegulatedAndUnregulatedOperatingRevenue92.785.988.794.992.987.189.394.893.286.589.494.492.686.888.394.492.986.488.996.395.994.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:ElectricUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, duk:GasUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3277755542412896645552493067565802563187276612493016705468999170
Percentage of RegulatedAndUnregulatedOperatingRevenue5.712.69.63.65.311.29.13.65.212.39.53.95.611.911.43.85.411.79.81.41.93.2
Percentage of RegulatedAndUnregulatedOperatingRevenue5.712.69.63.65.311.29.13.65.212.39.53.95.611.911.43.85.411.79.81.41.93.2
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:GasUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, duk:TotalReportableSegments


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value57816175580267465446597661306964589961916177664356606151590864665569574556256560521253734203649455826069556364025711626855936214
Percentage of RegulatedAndUnregulatedOperatingRevenue100.4100.4100.4100.4100.5100.5100.4100.3100.4100.5101.0100.2100.3100.3101.999.8100.3100.3100.999.8100.099.979.0100.299.9100.1100.1100.196.094.691.592.6
Percentage of RegulatedAndUnregulatedOperatingRevenue100.4100.4100.4100.4100.5100.5100.4100.3100.4100.5101.0100.2100.3100.3101.999.8100.3100.3100.999.8100.099.979.0100.299.9100.1100.1100.196.094.691.592.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments duk:TotalReportableSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue us-gaap:StatementBusinessSegments

duk:CommercialRenewables


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-31
Value11911912412612312912513811810613012711910112795110128119139114
Percentage of RegulatedAndUnregulatedOperatingRevenue2.11.92.11.92.32.22.02.02.01.72.11.92.11.62.21.52.02.22.12.12.1
Percentage of RegulatedAndUnregulatedOperatingRevenue2.11.92.11.92.32.22.02.02.01.72.11.92.11.62.21.52.02.22.12.12.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:CommercialRenewables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:ElectricUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-31
Value532852735116637150265174544165695467532154596253521553155066612951504939490663405081
Percentage of RegulatedAndUnregulatedOperatingRevenue92.585.788.694.892.787.089.294.793.186.389.394.392.486.687.494.692.786.288.096.494.5
Percentage of RegulatedAndUnregulatedOperatingRevenue92.585.788.694.892.787.089.294.793.186.389.394.392.486.687.494.692.786.288.096.494.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ElectricUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:GasUtilitiesandInfrastructure


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-31
Value30575253121726564053122528273255423229470250027227964851789169
Percentage of RegulatedAndUnregulatedOperatingRevenue5.312.29.23.24.910.88.73.24.811.99.13.55.211.48.64.25.011.39.31.43.1
Percentage of RegulatedAndUnregulatedOperatingRevenue5.312.29.23.24.910.88.73.24.811.99.13.55.211.48.64.25.011.39.31.43.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:GasUtilitiesandInfrastructure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:TotalReportableSegments


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value575261445771671454145943609769325867615961436612562861185693649655395715554265685472536441946485557360595553639159566636610867065883590457126749
Percentage of RegulatedAndUnregulatedOperatingRevenue99.999.999.999.999.999.999.999.999.999.9100.599.899.799.798.2100.299.799.899.499.9105.099.878.8100.099.799.999.999.9100.1100.299.9100.0100.1100.1100.3100.4
Percentage of RegulatedAndUnregulatedOperatingRevenue99.999.999.999.999.999.999.999.999.999.9100.599.899.799.798.2100.299.799.899.499.9105.099.878.8100.099.799.999.999.9100.1100.299.9100.0100.1100.1100.3100.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:TotalReportableSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllOtherSegments


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-31
Value6.06.06.07.07.06.06.08.06.04.0-28.0161517-41.0351614-43.03213
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.10.10.10.10.10.1-0.50.20.30.3-0.70.50.30.2-0.80.50.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.10.10.10.10.10.10.1-0.50.20.30.3-0.70.50.30.2-0.80.50.2
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value56676094566366585338580061036792569559986115645154675928579964825555572955776821521356225322648355896065555963955949662461126709587958985695672235773630336839643534366334453946328735943110339629133312
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue98.499.198.099.198.597.5100.097.997.097.3100.097.396.996.6100.0100.0100.0100.0100.0103.7100.0104.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity

duk:DukeEnergyCarolinas


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value161517391605206816071748177621401676171917752051164616941721213617291716168122261675174015602061170719011658193817552000171519191591172916091939161615011466186816071552
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax28.528.528.331.130.130.129.131.529.428.729.031.830.128.629.733.031.130.030.132.632.130.929.331.830.531.329.830.329.530.228.128.627.129.328.328.845.241.343.547.145.542.4
Percentage of RegulatedAndUnregulatedOperatingRevenue28.028.327.830.829.629.429.130.828.527.929.030.929.227.629.733.031.130.030.133.932.132.429.331.830.531.329.830.329.530.228.128.627.129.328.328.845.241.343.547.145.542.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas100.3101.3100.4100.599.8100.0100.099.097.898.6100.098.198.496.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyFlorida


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value132310931285156712501050124415161322105012411430117510831095140111919591030138111331024117414361281108611431491122511161085133211429681095138811961010
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax23.317.922.723.523.418.120.422.323.217.520.322.221.518.318.921.621.416.718.520.221.718.222.122.222.917.920.623.320.616.817.819.919.416.419.220.633.427.8
Percentage of RegulatedAndUnregulatedOperatingRevenue23.017.822.223.323.117.720.421.822.517.020.321.620.817.718.921.621.416.718.521.021.719.022.122.222.917.920.623.320.616.817.819.919.416.419.220.633.427.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida99.899.399.5100.0100.097.2100.097.997.796.7100.097.897.797.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyIndiana


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value730737716762613692715808709764771809722714745802742758733809702714667749686788792790748845747755700724626718685688625718620659
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.912.112.611.411.511.911.711.912.412.712.612.513.212.012.812.413.413.213.111.913.512.712.511.612.313.014.212.412.612.812.211.311.912.311.010.719.219.018.618.117.518.0
Percentage of RegulatedAndUnregulatedOperatingRevenue12.712.012.411.311.311.611.711.612.112.412.612.212.811.612.812.413.413.213.112.313.513.312.511.612.313.014.212.412.612.812.211.311.912.311.010.719.219.018.618.117.518.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana99.398.998.8100.199.4100.0100.0100.199.399.5100.098.897.897.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyOhio


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value457535465481420504487494429531505466462507497471437518511489428516452462405586480446531763868819811747766757717912770838694879780923649977
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax8.18.88.27.27.98.78.07.37.58.98.37.28.58.68.67.37.99.09.27.28.29.28.57.17.29.78.67.08.911.514.212.213.812.713.511.320.025.122.921.119.624.022.623.419.727.2
Percentage of RegulatedAndUnregulatedOperatingRevenue7.98.78.07.27.78.58.07.17.38.68.37.08.28.38.67.37.99.09.27.48.29.68.57.17.29.78.67.08.911.514.212.213.812.713.511.320.025.122.921.119.624.022.623.419.727.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio100.2100.6100.2101.799.3101.2100.0101.099.1100.0100.099.4100.796.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

duk:DukeEnergyProgress


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value13241386119716121222131713391651135214431330154712451442
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax23.422.721.124.222.922.721.924.323.724.121.724.022.824.3
Percentage of RegulatedAndUnregulatedOperatingRevenue23.022.520.724.022.522.121.923.823.023.421.723.322.123.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress98.198.998.599.198.398.495.897.897.597.297.497.896.498.8

duk:PiedmontNaturalGas


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value197598381144187461398157197570425162205557
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.59.86.72.23.57.96.52.33.59.57.02.53.79.4
Percentage of RegulatedAndUnregulatedOperatingRevenue3.49.76.62.13.47.76.52.33.49.27.02.43.69.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas91.698.789.488.994.990.093.693.594.398.497.794.295.3100.7

duk:ProgressEnergy


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value26472479248231792472236725493167267424932540297724192526
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax46.740.743.847.746.340.841.846.647.041.641.546.144.242.6
Percentage of RegulatedAndUnregulatedOperatingRevenue46.040.343.047.345.639.841.845.645.540.541.544.942.941.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy98.899.098.999.499.097.796.497.797.496.997.497.896.898.1

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

duk:DukeEnergyCarolinas, duk:General, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value498502513664507549530687531496511635501472
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax8.88.29.110.09.59.58.710.19.38.38.49.89.28.0
Percentage of RegulatedAndUnregulatedOperatingRevenue8.68.28.99.99.49.28.79.99.08.08.49.68.97.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas duk:General us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyCarolinas, duk:Industrial, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value256256266342260269288372289266287352286255
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.54.24.75.14.94.64.75.55.14.44.75.55.24.3
Percentage of RegulatedAndUnregulatedOperatingRevenue4.44.24.65.14.84.54.75.44.94.34.75.35.14.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas duk:Industrial us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyCarolinas, duk:Residential, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value683793681883677756713892679760718823659781
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.113.012.013.312.713.011.713.111.912.711.712.812.113.2
Percentage of RegulatedAndUnregulatedOperatingRevenue11.912.911.813.112.512.711.712.911.612.311.712.411.712.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas duk:Residential us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyCarolinas, duk:Wholesale, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11611448117101114121113109119142132115119
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.01.90.81.81.92.02.01.71.92.02.32.02.12.0
Percentage of RegulatedAndUnregulatedOperatingRevenue2.01.90.81.71.91.92.01.61.91.92.32.02.01.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas duk:Wholesale us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyFlorida, duk:General, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value390318388421313329386444411326392427377333
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax6.95.26.96.35.95.76.36.57.25.46.46.66.95.6
Percentage of RegulatedAndUnregulatedOperatingRevenue6.85.26.76.35.85.56.36.47.05.36.46.46.75.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida duk:General us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyFlorida, duk:Industrial, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6962666658626566676165696662
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.21.01.21.01.11.11.11.01.21.01.11.11.21.0
Percentage of RegulatedAndUnregulatedOperatingRevenue1.21.01.11.01.11.01.11.01.11.01.11.01.21.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida duk:Industrial us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyFlorida, duk:Residential, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value738602744934713562632897747578670853648595
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax13.09.913.114.013.49.710.413.213.19.611.013.211.910.0
Percentage of RegulatedAndUnregulatedOperatingRevenue12.89.812.913.913.29.410.412.912.79.411.012.911.59.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida duk:Residential us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyFlorida, duk:Wholesale, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4634535445424661423838373450
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.80.60.90.80.80.70.80.90.70.60.60.60.60.8
Percentage of RegulatedAndUnregulatedOperatingRevenue0.80.60.90.80.80.70.80.90.70.60.60.60.60.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida duk:Wholesale us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyIndiana, duk:General, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value190189186212161181183225197197194218188178
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.43.13.33.23.03.13.03.33.53.33.23.43.43.0
Percentage of RegulatedAndUnregulatedOperatingRevenue3.33.13.23.23.03.03.03.23.43.23.23.33.32.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana duk:General us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyIndiana, duk:Industrial, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value189167181175152175179204201190193202192173
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.32.73.22.62.83.02.93.03.53.23.23.13.52.9
Percentage of RegulatedAndUnregulatedOperatingRevenue3.32.73.12.62.82.92.92.93.43.13.23.03.42.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana duk:Industrial us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyIndiana, duk:Residential, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value265313279289231265262294225306274279245278
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.75.14.94.34.34.64.34.34.05.14.54.34.54.7
Percentage of RegulatedAndUnregulatedOperatingRevenue4.65.14.84.34.34.54.34.23.85.04.54.24.34.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana duk:Residential us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyIndiana, duk:Wholesale, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6350616444555963595472817768
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.10.81.11.00.80.91.00.91.00.91.21.31.41.1
Percentage of RegulatedAndUnregulatedOperatingRevenue1.10.81.11.00.80.91.00.91.00.91.21.21.41.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana duk:Wholesale us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:Commercial, us-gaap:NaturalGasUsRegulated, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2748312023433421264938202849
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.50.80.50.30.40.70.60.30.50.80.60.30.50.8
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.80.50.30.40.70.60.30.40.80.60.30.50.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:Commercial us-gaap:NaturalGasUsRegulated duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:General, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10610410611910311411612710510310411211096
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.91.71.91.81.92.01.91.91.81.71.71.72.01.6
Percentage of RegulatedAndUnregulatedOperatingRevenue1.81.71.81.81.91.91.91.81.81.71.71.71.91.6
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:General us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:Industrial, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3331343533353840363335333330
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.60.50.60.50.60.60.60.60.60.60.60.50.60.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.60.50.60.50.60.60.60.60.60.50.60.50.60.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:Industrial us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:Industrial, us-gaap:NaturalGasUsRegulated, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.07.05.03.03.06.05.04.03.07.05.03.03.07.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.10.10.00.10.10.10.10.10.10.10.00.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.00.10.10.10.10.10.10.10.00.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:Industrial us-gaap:NaturalGasUsRegulated duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:Residential, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value171195168213169176170215159189179203181180
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.03.23.03.23.23.02.83.22.83.22.93.13.33.0
Percentage of RegulatedAndUnregulatedOperatingRevenue3.03.22.93.23.13.02.83.12.73.12.93.13.22.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:Residential us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:Residential, us-gaap:NaturalGasUsRegulated, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6911086556297865364112955966111
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.21.81.50.81.21.71.40.81.11.91.60.91.21.9
Percentage of RegulatedAndUnregulatedOperatingRevenue1.21.81.50.81.11.61.40.81.11.81.60.91.21.8
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:Residential us-gaap:NaturalGasUsRegulated duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:Wholesale, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value131310.010.05.07.010.0139.014523.02.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.20.20.20.20.10.10.20.20.20.20.90.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.20.20.10.10.10.20.20.20.20.90.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:Wholesale us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyProgress, duk:General, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value330306311384298319324399339306308373300299
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.85.05.55.85.65.55.35.96.05.15.05.85.55.0
Percentage of RegulatedAndUnregulatedOperatingRevenue5.75.05.45.75.55.45.35.75.85.05.05.65.34.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress duk:General us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyProgress, duk:Industrial, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value160145162179154154161189164161161177159145
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.82.42.92.72.92.72.62.82.92.72.62.72.92.4
Percentage of RegulatedAndUnregulatedOperatingRevenue2.82.42.82.72.82.62.62.72.82.62.62.72.82.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress duk:Industrial us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyProgress, duk:Residential, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value478560481616460502487625496536479572452516
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax8.49.28.59.38.68.78.09.28.78.97.88.98.38.7
Percentage of RegulatedAndUnregulatedOperatingRevenue8.39.18.39.28.58.48.09.08.48.77.88.68.08.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress duk:Residential us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyProgress, duk:Wholesale, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value285292157358240279289368309315284335287397
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.04.82.85.44.54.84.75.45.45.34.65.25.26.7
Percentage of RegulatedAndUnregulatedOperatingRevenue4.94.72.75.34.44.74.75.35.35.14.65.15.16.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyProgress duk:Wholesale us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:PiedmontNaturalGas, duk:Commercial, us-gaap:NaturalGasUsRegulated, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value59156107445212611547591571214659152
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.02.61.90.71.02.21.90.71.02.62.00.71.12.6
Percentage of RegulatedAndUnregulatedOperatingRevenue1.02.51.90.71.02.11.90.71.02.52.00.71.02.5
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas duk:Commercial us-gaap:NaturalGasUsRegulated duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:PiedmontNaturalGas, duk:Industrial, us-gaap:NaturalGasUsRegulated, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2743302222363125244235242841
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.50.70.50.30.40.60.50.40.40.70.60.40.50.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.70.50.30.40.60.50.40.40.70.60.40.50.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas duk:Industrial us-gaap:NaturalGasUsRegulated duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:PiedmontNaturalGas, duk:PowerGeneration, us-gaap:NaturalGasUsRegulated, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value24227.010.06.0111213131314131413
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.40.40.10.20.10.20.20.20.20.20.20.20.30.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.40.10.10.10.20.20.20.20.20.20.20.20.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas duk:PowerGeneration us-gaap:NaturalGasUsRegulated duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:PiedmontNaturalGas, duk:Residential, us-gaap:NaturalGasUsRegulated, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value88351213579626421859823022235787302
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.65.83.80.91.84.63.60.91.45.03.60.91.65.1
Percentage of RegulatedAndUnregulatedOperatingRevenue1.55.73.70.81.84.43.60.91.44.93.60.91.54.9
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:PiedmontNaturalGas duk:Residential us-gaap:NaturalGasUsRegulated duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, duk:General, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value720624699805611648710843750632700800678631
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.710.212.312.111.411.211.612.413.210.511.412.412.410.6
Percentage of RegulatedAndUnregulatedOperatingRevenue12.510.112.112.011.310.911.612.112.810.311.412.112.010.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy duk:General us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, duk:Industrial, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value229207228245212216226255231222226246224208
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.03.44.03.74.03.73.73.84.13.73.73.84.13.5
Percentage of RegulatedAndUnregulatedOperatingRevenue4.03.43.93.63.93.63.73.73.93.63.73.74.03.4
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy duk:Industrial us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, duk:Residential, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12161162122515501173106411191522124311141149142510991112
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax21.519.121.623.322.018.318.322.421.818.618.822.120.118.8
Percentage of RegulatedAndUnregulatedOperatingRevenue21.118.921.223.121.617.918.321.921.218.118.821.519.518.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy duk:Residential us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:ProgressEnergy, duk:Wholesale, us-gaap:ElectricityUsRegulated, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value331326210412285321335429351353322372322446
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.85.33.76.25.35.55.56.36.25.95.35.85.97.5
Percentage of RegulatedAndUnregulatedOperatingRevenue5.75.33.66.15.35.45.56.26.05.75.35.65.77.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:ProgressEnergy duk:Wholesale us-gaap:ElectricityUsRegulated duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

duk:DukeEnergyCarolinas, duk:OtherRevenues, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value62749762626054766878591098567
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.11.21.70.91.21.00.91.11.21.31.01.71.61.1
Percentage of RegulatedAndUnregulatedOperatingRevenue1.11.21.70.91.11.00.91.11.21.31.01.61.51.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyCarolinas duk:OtherRevenues duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyFlorida, duk:OtherRevenues, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value80773492121558148554745445043
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.41.30.61.42.30.91.30.71.00.80.70.70.90.7
Percentage of RegulatedAndUnregulatedOperatingRevenue1.41.30.61.42.20.91.30.70.90.80.70.70.90.7
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyFlorida duk:OtherRevenues duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyIndiana, duk:OtherRevenues, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value23189.02225162322271725292017
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.40.30.20.30.50.30.40.30.50.30.40.40.40.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.30.20.30.50.30.40.30.50.30.40.40.40.3
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyIndiana duk:OtherRevenues duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:OtherRevenues, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2222202319202118251616202314
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.40.40.40.30.40.30.30.30.40.30.30.30.40.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.40.30.30.40.30.30.30.40.30.30.30.40.2
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:OtherRevenues duk:ElectricUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyOhio, duk:OtherRevenues, duk:GasUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value125.05.03.03.06.06.03.02.08.06.01.06.06.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.20.10.10.00.10.10.10.00.00.10.10.00.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.10.10.00.10.10.10.00.00.10.10.00.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue duk:DukeEnergyOhio duk:OtherRevenues duk:GasUtilitiesandInfrastructure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

duk:DukeEnergyProgress, duk:OtherRevenues, duk:ElectricUtilitiesandInfrastructure


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value71838675706378704412598904785
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.31.41.51.1