D


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

Table of contents



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

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostsAndExpenses
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:GainLossOnInvestments
us-gaap:ConsolidationItems, us-gaap:InvestmentType

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
dei:LegalEntity
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
dei:LegalEntity, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity
dei:LegalEntity, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementOperatingActivitiesSegment

us-gaap:InterestAndDebtExpense
dei:LegalEntity
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:BusinessAcquisition
us-gaap:LitigationSettlementExpense
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

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

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
dei:LegalEntity, us-gaap:ConsolidationItems
us-gaap:NonoperatingIncomeExpense
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingIncomeLoss
dei:LegalEntity

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

us-gaap:OtherNonoperatingIncomeExpense
dei:LegalEntity
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RegulatedAndUnregulatedOperatingRevenue
dei:LegalEntity

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
dei:LegalEntity
dei:LegalEntity, us-gaap:Ownership
dei:LegalEntity, us-gaap:ProductOrService
dei:LegalEntity, us-gaap:ProductOrService, us-gaap:ContractWithCustomerSalesChannel
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:ContractWithCustomerSalesChannel
us-gaap:ProductOrService, us-gaap:TimingOfTransferOfGoodOrService

us-gaap:Revenues
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:StatementBusinessSegments

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

us-gaap:Liabilities
dei:LegalEntity

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity

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

us-gaap:AssetsCurrent
dei:LegalEntity
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity
us-gaap:BalanceSheetLocation

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity

us-gaap:InventoryNet
dei:LegalEntity

us-gaap:InventoryRawMaterialsAndSupplies
dei:LegalEntity

us-gaap:OtherAssetsCurrent
dei:LegalEntity

us-gaap:PropertyPlantAndEquipmentGross
dei:LegalEntity

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
dei:LegalEntity
us-gaap:TypeOfArrangement

us-gaap:PropertyPlantAndEquipmentNet
dei:LegalEntity
us-gaap:LitigationCase, us-gaap:BusinessAcquisition
us-gaap:TypeOfArrangement

us-gaap:LongTermInvestments
dei:LegalEntity

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

us-gaap:IntangibleAssetsNetExcludingGoodwill
dei:LegalEntity

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity
us-gaap:DisposalGroupClassification, us-gaap:StatementBusinessSegments

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementGeographical, us-gaap:InvestmentType
us-gaap:EquitySecuritiesFvNi
us-gaap:StatementGeographical, us-gaap:InvestmentType

us-gaap:AccountsPayableCurrent
dei:LegalEntity

us-gaap:AccruedLiabilitiesCurrent
dei:LegalEntity
dei:LegalEntity
us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent
dei:LegalEntity
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:Ownership
dei:LegalEntity, us-gaap:IncomeTaxAuthority, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:TaxesPayableCurrent
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LongTermDebt
dei:LegalEntity
us-gaap:LongTermDebtNoncurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:LongTermDebtAndCapitalLeaseObligations
dei:LegalEntity

us-gaap:DeferredIncomeTaxLiabilitiesNet
dei:LegalEntity

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

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent
dei:LegalEntity

us-gaap:OperatingLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
dei:LegalEntity

us-gaap:OperatingLeaseLiability
dei:LegalEntity
us-gaap:DisposalGroupClassification, us-gaap:StatementBusinessSegments

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity

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

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue
dei:LegalEntity
dei:LegalEntity
us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit
dei:LegalEntity
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:Ownership, us-gaap:CreditFacility, us-gaap:GuaranteeObligationsByNature

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:RetirementPlanType

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementScenario
us-gaap:DeferredIncomeTaxExpenseBenefit
us-gaap:BusinessAcquisition
us-gaap:StatementScenario

us-gaap:IncreaseDecreaseInAccountsPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsReceivable
dei:LegalEntity

us-gaap:IncreaseDecreaseInInventories
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

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

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity
dei:LegalEntity
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity

us-gaap:PaymentsOfDividendsCommonStock
dei:LegalEntity

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
dei:LegalEntity

us-gaap:DeferredTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsNet
dei:LegalEntity

us-gaap:UnrecognizedTaxBenefits
us-gaap:BalanceSheetLocation, us-gaap:BusinessAcquisition
us-gaap:LitigationReserveCurrent
us-gaap:BusinessAcquisition
dei:LegalEntity
d:AffiliatedSuppliers

d:AmountOfDilutiveEffectOfPreferredStock
dei:LegalEntity, us-gaap:ConsolidationItems
d:AssetEarlyRetirementExpense
dei:LegalEntity, us-gaap:ConsolidationItems
d:AssetEarlyRetirementExpenseAfterTax
us-gaap:ConsolidationItems, us-gaap:RegulatoryAsset, us-gaap:StatementBusinessSegments
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
d:AssetImpairmentAndOtherCharges
us-gaap:BusinessAcquisition
d:AssetImpairmentAndOtherChargesNetOfTax
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:IncomeStatementLocation
d:AssetImpairmentBenefit
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:IncomeStatementLocation
d:AssetImpairmentBenefitAfterTax
dei:LegalEntity, us-gaap:IncomeStatementLocation
d:AssetImpairmentChargesAfterTax
us-gaap:ProductOrService, us-gaap:IncomeStatementLocation
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
d:AssetImpairmentChargesAttributableToNoncontrollingInterest

d:AssetImpairmentsAndOtherCharges
dei:LegalEntity
us-gaap:IncomeStatementLocation
d:AssetRetirementObligationLiabilitiesIncurredAfterTax
dei:LegalEntity, us-gaap:ConsolidationItems
d:BenefitForCustomerCreditReinvestmentOffset
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:ConsolidationItems
d:BenefitForCustomerCreditReinvestmentOffsetNetOfTax
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementScenario
d:BenefitsToRetireesExpectedCharge
us-gaap:StatementScenario
d:BenefitsToRetireesExpectedChargeAfterTax
us-gaap:BusinessAcquisition
d:BusinessCombinationFairValueOfConsiderationTransferred
dei:LegalEntity, us-gaap:BusinessAcquisition
d:CapacityOfFacilityOfCompanyOwnedSolarDistributionGenerationFacilities
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

d:ChangesInOtherComprehensiveIncomeLossFromEquityMethodInvesteesInvestmentsNetOfTaxIncludingPortionAttributableToNonControllingInterest

d:ChangesInOtherComprehensiveIncomeLossFromEquityMethodInvesteesInvestmentsTaxIncludingPortionAttributableToNonControllingInterest
dei:LegalEntity, us-gaap:ConsolidationItems
d:ChargeAssociatedWithBudgetProcessRelatedToCustomerArrears
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:ConsolidationItems
d:ChargeAssociatedWithBudgetProcessRelatedToCustomerArrearsNetOfTax
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

d:ChargeAssociatedWithCertainNonregulatedSolarGenerationFacilitiesNetOfTax

d:ChargeAssociatedWithLegislationEnactedRelatedToCustomerArrearsNetOfTax
dei:LegalEntity

d:ChargeAssociatedWithSaleOfInvestmentNetOfTax
dei:LegalEntity, us-gaap:ConsolidationItems
d:ChargeForExpectedCustomerCreditReinvestmentOffset

d:ChargeForExpectedCustomerCreditReinvestmentOffsetNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidationItems
us-gaap:Ownership
d:ContractTerminationLoss
us-gaap:Ownership
d:ContractTerminationLossNetOfTax

d:CorporateUnitsStockPurchaseContractLiabilityPayments

d:DebtAndEquitySecuritiesRealizedGains
dei:LegalEntity

d:DebtAndEquitySecuritiesRealizedLosses
dei:LegalEntity

d:DecreaseInCommonStock

d:DepreciationDepletionAndAmortizationIncludingNuclearFuel
dei:LegalEntity
dei:LegalEntity, us-gaap:Ownership, us-gaap:StatementScenario, us-gaap:StatementBusinessSegments
d:DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationIncludingCashFlowHedgesBeforeIncomeTax
us-gaap:Ownership, us-gaap:StatementScenario, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
d:DisposalGroupIncludingDiscontinuedOperationInterestAndRelatedCharges
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
d:DisposalGroupIncludingDiscontinuedOperationOtherIncomeLoss
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
d:DisposalGroupNotDiscontinuedOperationGainLossOnDisposalAfterTax

d:EffectiveIncomeTaxRateReconciliationAllowanceForFundsUsedDuringConstructionEquity
dei:LegalEntity

d:EffectiveIncomeTaxRateReconciliationChangeInStateDeferredTaxesAssociatedWithAssetsHeldForSale

d:EffectiveIncomeTaxRateReconciliationChangeInTaxStatus

d:EffectiveIncomeTaxRateReconciliationReversalOfExcessDeferredIncomeTaxes
dei:LegalEntity

d:ElectricFuelAndOtherEnergyRelatedPurchases
dei:LegalEntity
dei:LegalEntity, us-gaap:EnvironmentalRemediationContingency, us-gaap:EnvironmentalRemediationSite, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:RegulatoryAgency
d:EnvironmentalRemediationReserves
us-gaap:EnvironmentalRemediationContingency, us-gaap:EnvironmentalRemediationSite, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:RegulatoryAgency
us-gaap:LitigationCase, us-gaap:BusinessAcquisition
d:EstimatedProceedsFromSaleOfPropertyPlantAndEquipment
dei:LegalEntity
d:ExcessDeferredTaxesAdjustedInChargeOfOperatingRevenue
dei:LegalEntity
d:ExcessDeferredTaxesAdjustedInChargeOfOperatingRevenueNetOfTax
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
d:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInRegulatoryAssetsAndLiabilities
us-gaap:DerivativeInstrumentRisk

d:FinancingLeases
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:InvestmentType
d:GainLossOnInvestmentsNetOfTax
us-gaap:ConsolidationItems, us-gaap:InvestmentType, us-gaap:StatementBusinessSegments
dei:LegalEntity
d:ImpairmentOfAssetsAndOtherChargesBenefit
us-gaap:Ownership
d:IncomeLossFromEquityMethodInvestmentsAfterTax

d:IncomeTaxExpenseBenefitAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
d:IncreaseDecreaseInAnnualBaseFuelComponentRecoveries
dei:LegalEntity, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
d:IncreaseDecreaseInDerivativesAffectingRegulatoryAssetsAndLiabilities
dei:LegalEntity, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:ChangeInAccountingEstimateByType
d:IncreaseDecreaseInEarningsPerShare
us-gaap:EnvironmentalRemediationContingency, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:RegulatoryAgency
d:IncreaseInEnvironmentalExpense

d:Leases
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
d:LitigationSettlementExpenseNetOfTax
us-gaap:StatementBusinessSegments
d:LossAssociatedWithCashFlowHedgesOfDebtRelatedItems
us-gaap:StatementBusinessSegments
d:LossAssociatedWithCashFlowHedgesOfDebtRelatedItemsAfterTax
dei:LegalEntity, us-gaap:ConsolidationItems
d:LossFromUnbilledRevenueReduction
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:ConsolidationItems
d:LossFromUnbilledRevenueReductionNetOfTax
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

d:MaximumRetrospectivePremiumAssessmentForNuclearPowerPlantLicensees
dei:LegalEntity
us-gaap:Ownership
d:NetPaymentOfLongTermPowerAndCapacityContract
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
d:NonoperatingIncomeExpenseForSpecificItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:LeaseContractualTerm, us-gaap:PropertyPlantAndEquipmentByType
d:OperatingLeaseExpenseAfterTax

d:OperatingLeases
us-gaap:BusinessAcquisition
d:OtherExpensesNetOfTax

d:OtherRevenues
dei:LegalEntity
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:ProductOrService

d:PaymentsToAcquirePropertyPlantAndEquipmentIncludingNuclearFuel

d:PaymentsToContributionsEquityMethodInvestments
us-gaap:Ownership
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:Ownership, us-gaap:StatementBusinessSegments
d:PercentageOfControllingInterestSold
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
d:PhaseInPlanAmountOfCapitalizedCostsRecoverable
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency

d:ProceedsFromIssuanceRepaymentOfShortTermDebtExcludingCreditBorrowingFacilities
dei:LegalEntity
us-gaap:StatementEquityComponents
d:PropertyPlantAndEquipmentWriteDownToEstimatedFairValue
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
d:PublicUtilitiesActualEarnedReturnOnEquityPercentage
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
d:PublicUtilitiesAnnualTransportationCostRateAdjustmentApprovalRequestToRecoverAmount
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency
d:PublicUtilitiesApprovedRateAmount
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:PublicUtilitiesRegulatoryProceeding
us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
d:PublicUtilitiesApprovedRateAmountIncreaseDecrease
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding
d:PublicUtilitiesApprovedRateIncreaseDecreaseAmountPublicUtilitiesApprovedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency
d:PublicUtilitiesDistributionInfrastructureGatheringAssets
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
d:PublicUtilitiesEnergyEfficiencyUpgradesAndCriticalHealthAndSafetyRepairs

d:PublicUtilitiesOperatingExpenseEstimatedFuelExpensesRecovery
us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
d:PublicUtilitiesOperatingExpenseEstimatedFuelExpensesUnderRecoveredBalance
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:SubsequentEventType
d:PublicUtilitiesProjectsProposedRevenueRequirement
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
d:PublicUtilitiesPropertyPlantAndEquipmentRequestedCostOfConstruction
dei:LegalEntity, us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
d:PublicUtilitiesRequestedRateIncreaseAmortizationOfCertainExcessDeferredIncomeTaxes
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d:PurchasedGas
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d:ShareholderLitigationSettlementThroughIssuanceOfShares

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d:StormDamageAndServiceRestorationCharges
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us-gaap:CapitalExpenditureDiscontinuedOperations

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us-gaap:TypeOfArrangement
us-gaap:Depreciation

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dei:LegalEntity
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us-gaap:StatementEquityComponents

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us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

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us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings
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us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
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us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
us-gaap:DerivativeInstrumentRisk

us-gaap:GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee
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us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest

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us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

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us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInDeferredFuelCosts
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dei:LegalEntity
us-gaap:IncreaseDecreaseInDueFromAffiliatesCurrent

us-gaap:IncreaseDecreaseInMarginDepositsOutstanding

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations

us-gaap:IncreaseDecreaseInPrepaidExpense
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us-gaap:Ownership
us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest

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us-gaap:OperatingLeaseExpense
us-gaap:TypeOfArrangement
us-gaap:OperatingLeaseLeaseIncome
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us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
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us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax
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us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
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us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax
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us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
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us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
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us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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us-gaap:BusinessAcquisition
us-gaap:OtherExpenses

us-gaap:OtherNoncashIncomeExpense
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us-gaap:BusinessAcquisition, us-gaap:IncomeTaxAuthorityName
us-gaap:LitigationCase, us-gaap:BusinessAcquisition
dei:LegalEntity
us-gaap:PaymentsForNuclearFuel

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us-gaap:PaymentsOfDebtExtinguishmentCosts
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us-gaap:PaymentsToAcquireProjects
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dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
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us-gaap:ProceedsFromDivestitureOfBusinesses

us-gaap:ProceedsFromIssuanceOfCommonStock
us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromNotesPayable

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

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities
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us-gaap:ProceedsFromSaleOfProductiveAssets
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us-gaap:PublicUtilitiesApprovedRateIncreaseDecreaseAmount
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us-gaap:PublicUtilitiesApprovedReturnOnEquityPercentage
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us-gaap:PublicUtilitiesInterimRateIncreaseDecreaseAmount
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us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesRequestedRateIncreaseDecreasePercentage
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us-gaap:PublicUtilitiesRequestedReturnOnEquityPercentage
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us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
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us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax
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us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
dei:LegalEntity
us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfNotesPayable
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us-gaap:RevenueFromRelatedParties
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us-gaap:ShorttermDebtMaximumAmountOutstandingDuringPeriod

us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:Range, us-gaap:SubsidiarySaleOfStock
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType
us-gaap:StatementEquityComponents, us-gaap:TypeOfArrangement

us-gaap:StockRepurchasedDuringPeriodShares
us-gaap:ShareRepurchaseProgram, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:ShareRepurchaseProgram, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StatementScenario, us-gaap:StatementEquityComponents

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

us-gaap:TaxesExcludingIncomeAndExciseTaxes
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dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:UnrealizedGainLossOnCashFlowHedgingInstruments
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us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations
dei:LegalEntity
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d:AcceleratedShareRepurchaseAdditionalSharesDelivered

d:AcceleratedShareRepurchaseCashPaidForNumberOfSharesExchange

d:AccountsPayableChecksOutstanding
dei:LegalEntity

d:AccumulatedOtherComprehensiveIncomeLossIncludingPortionAttributableToNoncontrollingInterestNetOfTax
us-gaap:StatementEquityComponents
dei:LegalEntity
d:AllowanceForFundsUsedDuringConstructionRecordedAsRegulatoryAsset

d:AmountOfGainLossExpectedToBeReclassifiedToEarningsDuringNext12MonthsAfterTax
dei:LegalEntity

d:AvailableForSaleSecuritiesAmortizedCostBasisAndOtherInvestments
dei:LegalEntity
dei:LegalEntity, us-gaap:InvestmentType
d:CashEquivalentsAndOtherCarryingValue
us-gaap:InvestmentType
dei:LegalEntity, us-gaap:InvestmentType
d:CashEquivalentsAndOtherCarryingValueAdjustments
us-gaap:InvestmentType
dei:LegalEntity, us-gaap:InvestmentType
d:CashEquivalentsAndOtherFairValue
us-gaap:InvestmentType
dei:LegalEntity, us-gaap:InvestmentType
d:CashEquivalentsAndOtherFairValueAdjustments
us-gaap:InvestmentType
us-gaap:InvestmentType
d:CashEquivalentsAndOtherUnrealizedGains
us-gaap:InvestmentType
d:CashEquivalentsAndOtherUnrealizedLoss
us-gaap:BalanceSheetLocation
d:CharityCommitments

d:CommonStockWorthBasedOnClosingPrice

d:CorporateUnitsPresentValueOfStockPurchaseContractPayments

d:DebtWeightedAverageCouponInterestRateMaturitiesYearFive
dei:LegalEntity

d:DebtWeightedAverageCouponInterestRateMaturitiesYearFour
dei:LegalEntity

d:DebtWeightedAverageCouponInterestRateMaturitiesYearOne

d:DebtWeightedAverageCouponInterestRateMaturitiesYearThree
dei:LegalEntity

d:DebtWeightedAverageCouponInterestRateMaturitiesYearTwo
dei:LegalEntity

d:DebtWeightedAverageCouponInterestRateMaturitiesafterYearFive
dei:LegalEntity

d:DecommissioningFundInvestmentsNet
dei:LegalEntity
us-gaap:FinancialInstrument
d:DecommissioningTrustSecuritiesAllowanceForCreditLosses

d:DecommissioningTrustSecuritiesUnrealizedGains
dei:LegalEntity

d:DecommissioningTrustSecuritiesUnrealizedLosses
dei:LegalEntity

d:DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrent
dei:LegalEntity

d:DeferredTaxAssetsDeferredFuelPurchasedEnergyAndGasCosts
dei:LegalEntity

d:DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards
dei:LegalEntity

d:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefitsExpenses
dei:LegalEntity

d:DeferredTaxLiabilitiesAndDeferredInvestmentTaxCreditsNet
dei:LegalEntity

d:DeferredTaxLiabilitiesExcessDeferredIncomeTaxes
dei:LegalEntity

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dei:LegalEntity

d:DeferredTaxLiabilitiesNuclearDecommissioning
dei:LegalEntity

d:DeferredTaxLiabilitiesPartnershipBasisDifferences

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d:DeferredTaxLiabilitiesStateIncomeTaxes
dei:LegalEntity

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dei:LegalEntity

d:DeferredTaxLiabilitiesTaxRefund

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d:DefinedBenefitPlanAssumptionsUsedCreditingInterestRateForCashBalanceAndSimilarPlans

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dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
d:DerivativeImputedInterestRate

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d:DisposalGroupIncludingDiscontinuedOperationLongTermDebtNoncurrent

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d:EstimatedInsuranceRecoveriesPerYearPerReactor
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d:HedgedLiabilityDiscontinuedFairValueHedge
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d:JointlyOwnedUtilityPlantAccumulatedAmortizationOfNuclearFuel
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d:JointlyOwnedUtilityPlantNuclearFuel
us-gaap:Ownership
d:LiabilityAssociatedWithItsInvestment

d:LiabilityToAtlanticCoastPipelineProjectCurrent

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dei:LegalEntity

d:LongTermDebtOtherThanJuniorSubordinatedNotes

d:LongtermDebtGrossCurrentMaturities
us-gaap:GuaranteeObligationsByNature
d:MinimumNuclearInsuranceRequiredPerSite

d:NetAssetsLiabilitiesOfPendingSalesPurchasesOfInvestmentSecurities
dei:LegalEntity

d:NetAssetsRelatedToPendingPurchasesOfSecurities
dei:LegalEntity

d:NonjurisdictionalIncludingPlantUnderConstruction
dei:LegalEntity

d:NonregulatedGenerationNuclear

d:NonregulatedGenerationOther

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d:OperatingAndFinanceLeaseLiability
dei:LegalEntity

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dei:LegalEntity

d:OperatingAndFinanceLeaseLiabilityNoncurrent
dei:LegalEntity

d:OperatingAndFinanceLeaseRightOfUseAsset
dei:LegalEntity

d:OtherNonUtilityIncludingPlantUnderConstruction
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d:PropertyAndCasualtyInsuranceCoverageAmount
us-gaap:GuaranteeObligationsByNature
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d:PublicUtilitiesCumulativePropertyPlantAndEquipmentAmountOfConstructionWorkInProcessIncludedInRateBase
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d:PublicUtilitiesPropertyPlantAndEquipmentExpectedCostOfConstruction
us-gaap:BusinessAcquisition
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d:ReceivablesForSpentNuclearFuelRelatedCosts
us-gaap:LossContingenciesByNatureOfContingency
dei:LegalEntity
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us-gaap:RelatedPartyTransactionsByRelatedParty
d:UnfundedCommitments

dei:EntityCommonStockSharesOutstanding

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us-gaap:AcceleratedShareRepurchasesSettlementPaymentOrReceipt

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dei:LegalEntity

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dei:LegalEntity

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dei:LegalEntity

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dei:LegalEntity

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dei:LegalEntity

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us-gaap:DerivativeInstrumentRisk
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us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:AociTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:AssetRetirementObligation
dei:LegalEntity
dei:LegalEntity
us-gaap:AssetRetirementObligationCurrent
us-gaap:BalanceSheetLocation
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us-gaap:AssetRetirementObligationsNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
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us-gaap:FairValueByMeasurementFrequency
us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:AssetsHeldInTrust

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
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dei:LegalEntity, us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
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us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:InvestmentType

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
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dei:LegalEntity, us-gaap:FinancialInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:FinancialInstrument, us-gaap:InvestmentType
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us-gaap:InvestmentType
us-gaap:BusinessAcquisition
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us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
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us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

us-gaap:CashCashEquivalentsAndShortTermInvestments
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us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments

us-gaap:CollateralAlreadyPostedAggregateFairValue
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:ContractWithCustomerLiability
us-gaap:BalanceSheetLocation
dei:LegalEntity, us-gaap:LeaseContractualTerm
us-gaap:ContractualObligation

us-gaap:DebtInstrumentCarryingAmount
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us-gaap:DebtInstrumentRepurchaseAmount
us-gaap:DebtInstrument, us-gaap:SubsequentEventType

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dei:LegalEntity

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition
dei:LegalEntity

us-gaap:DebtWeightedAverageInterestRate

us-gaap:DecommissioningFundInvestments
dei:LegalEntity
us-gaap:Range
us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible
d:GrantDate, us-gaap:TitleOfIndividual, us-gaap:DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensation
us-gaap:DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount
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us-gaap:DeferredCompensationArrangementWithIndividualRecordedLiability

us-gaap:DeferredCreditsAndOtherLiabilities
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us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:FairValueByLiabilityClass, us-gaap:HedgingDesignation
us-gaap:DeferredGainLossOnDiscontinuationOfFairValueHedge

us-gaap:DeferredIncomeTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
dei:LegalEntity
us-gaap:IncomeTaxAuthority

us-gaap:DeferredTaxAssetsOther
dei:LegalEntity
dei:LegalEntity, us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward
us-gaap:DeferredTaxAssetsTaxCreditCarryforwards
us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
dei:LegalEntity

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanType
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us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
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us-gaap:RetirementPlanType
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us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
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us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
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us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
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us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
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us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:Ownership, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets

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us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:Ownership, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:RetirementPlanType

us-gaap:DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
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dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType
us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType

us-gaap:DerivativeAssetNotOffsetPolicyElectionDeduction
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dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType
us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType

us-gaap:DerivativeAssetNotSubjectToMasterNettingArrangement
dei:LegalEntity
us-gaap:Range

us-gaap:DerivativeAssets

us-gaap:DerivativeAssetsCurrent
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dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
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us-gaap:BalanceSheetLocation
us-gaap:DerivativeInstrumentRisk
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us-gaap:HedgingDesignation

us-gaap:DerivativeAssetsNoncurrent
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us-gaap:DerivativeInstrumentRisk
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us-gaap:HedgingDesignation

us-gaap:DerivativeCollateralRightToReclaimCash
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dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType
us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:DerivativeLiabilities

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us-gaap:DerivativeInstrumentRisk
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us-gaap:HedgingDesignation

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us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
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us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType

us-gaap:DerivativeLiabilityNotOffsetPolicyElectionDeduction
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us-gaap:DerivativeInstrumentRisk, us-gaap:TransactionType

us-gaap:DerivativeLiabilityNotSubjectToMasterNettingArrangement
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us-gaap:Range

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us-gaap:DerivativeNotionalAmount
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us-gaap:DisposalGroupDeferredGainOnDisposal
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us-gaap:DisposalGroupIncludingDiscontinuedOperationCash
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us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets
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us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RetirementPlanType
us-gaap:DueFromAffiliateNoncurrent
dei:LegalEntity
us-gaap:DueFromRelatedPartiesCurrent
dei:LegalEntity
us-gaap:DueToAffiliateCurrent
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RetirementPlanType
us-gaap:DueToAffiliateNoncurrent
dei:LegalEntity
us-gaap:DueToRelatedPartiesCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:CounterpartyName
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RetirementPlanType
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EnergyRelatedInventoryGasStoredUnderground

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

us-gaap:EquityMethodInvestments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
dei:LegalEntity, us-gaap:StatementGeographical, us-gaap:InvestmentType
us-gaap:EquitySecuritiesFvNiCost
us-gaap:StatementGeographical, us-gaap:InvestmentType
us-gaap:Range
us-gaap:EstimatedInsuranceRecoveries
dei:LegalEntity
us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue

us-gaap:FairValueHedgesAtFairValueNet
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
us-gaap:DerivativeInstrumentRisk

us-gaap:FinanceLeaseLiability
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity

us-gaap:FinanceLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization
dei:LegalEntity

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

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
dei:LegalEntity

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
dei:LegalEntity

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
dei:LegalEntity

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
dei:LegalEntity

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
dei:LegalEntity
dei:LegalEntity, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:Ownership, us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:GuaranteeObligationsByNature
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:FairValueByLiabilityClass, us-gaap:HedgingDesignation
us-gaap:HedgedLiabilityDiscontinuedFairValueHedgeCumulativeIncreaseDecrease
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:FairValueByLiabilityClass, us-gaap:HedgingDesignation
us-gaap:HedgedLiabilityFairValueHedge
us-gaap:BalanceSheetLocation, us-gaap:BusinessAcquisition
us-gaap:InsuranceSettlementsReceivableCurrent
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet
us-gaap:DerivativeInstrumentRisk

us-gaap:InterestRateFairValueHedgeDerivativeAtFairValueNet
us-gaap:Ownership
us-gaap:InvestmentSoldNotYetPurchasedAtFairValue
us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService
us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress
us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation
us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantProportionateOwnershipShare

us-gaap:JuniorSubordinatedLongTermNotes
dei:LegalEntity
us-gaap:LIFOInventoryAmount

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity

us-gaap:LettersOfCreditOutstandingAmount
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
us-gaap:Ownership
us-gaap:Ownership, us-gaap:BalanceSheetLocation
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:BalanceSheetLocation

us-gaap:LineOfCredit
us-gaap:CreditFacility
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LinesOfCreditCurrent

us-gaap:LinesOfCreditFairValueDisclosure
us-gaap:DebtInstrument
us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermCommercialPaperCurrent
dei:LegalEntity

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
dei:LegalEntity

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

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

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

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

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

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

us-gaap:LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths
us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis

us-gaap:LongtermCommercialPaperCurrentAndNoncurrent
dei:LegalEntity

us-gaap:MarginDepositAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:Ownership, us-gaap:BusinessAcquisition, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners
us-gaap:Ownership
us-gaap:Ownership, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent
dei:LegalEntity, us-gaap:Ownership, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:OptionIndexedToIssuersEquityEquity
dei:LegalEntity, us-gaap:Ownership, us-gaap:StatementScenario, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:Ownership
us-gaap:Ownership, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:PartnerTypeOfPartnersCapitalAccount, us-gaap:StatementBusinessSegments
us-gaap:Ownership, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:PartnerTypeOfPartnersCapitalAccount, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:Ownership, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
us-gaap:Ownership, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:Ownership, us-gaap:PartnerTypeOfPartnersCapitalAccount, us-gaap:StatementBusinessSegments
us-gaap:Ownership, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments

us-gaap:NoninterestBearingDepositLiabilities

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity

us-gaap:OperatingLossCarryforwards
us-gaap:IncomeTaxAuthority
dei:LegalEntity
us-gaap:OperatingLossCarryforwardsValuationAllowance
dei:LegalEntity, us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward
us-gaap:IncomeTaxAuthority
us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward

us-gaap:OtherLongTermDebtNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk

us-gaap:OtherLongTermInvestments
dei:LegalEntity

us-gaap:OtherReceivablesNetCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:Ownership, us-gaap:Range
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PhaseInPlanAmountOfCostsDeferredForRateMakingPurposes
us-gaap:StatementScenario
us-gaap:PreferredStockRedemptionPricePerShare

us-gaap:PreferredStockValue

us-gaap:PrepaidExpenseCurrent
dei:LegalEntity
us-gaap:EnvironmentalExitCostByProperty
us-gaap:PrepaidInsurance
us-gaap:ProductOrService, us-gaap:DerivativeInstrumentRisk
us-gaap:PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk
us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfConstructionWorkInProcessIncludedInRateBase

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentDistribution
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentFuel
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentTransmission
dei:LegalEntity
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseObligation
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseObligationDueAfterFifthYear
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseObligationDueInFifthYear
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseObligationDueInFourthYear
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseObligationDueInNextTwelveMonths
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseObligationDueInSecondYear
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseObligationDueInThirdYear

us-gaap:RegulatoryAssets
dei:LegalEntity
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:RegulatoryAgency

us-gaap:RegulatoryAssetsCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryAsset
us-gaap:RegulatoryAsset

us-gaap:RegulatoryAssetsNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryAsset
us-gaap:RegulatoryAsset

us-gaap:RegulatoryLiabilities
dei:LegalEntity

us-gaap:RegulatoryLiabilityCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryLiability
us-gaap:RegulatoryLiability

us-gaap:RegulatoryLiabilityNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryLiability
us-gaap:RegulatoryLiability

us-gaap:RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
dei:LegalEntity
us-gaap:BalanceSheetLocation
us-gaap:RestrictedCash
dei:LegalEntity
us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
us-gaap:BalanceSheetLocation

us-gaap:RestrictedCashAndInvestmentsCurrent

us-gaap:RevenueRemainingPerformanceObligation
dei:LegalEntity
us-gaap:EnvironmentalExitCostByProperty
us-gaap:SecurityDeposit
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShortTermBorrowings
dei:LegalEntity
us-gaap:CreditFacility
us-gaap:DebtInstrument
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:ShortTermDebtWeightedAverageInterestRate

us-gaap:UnbilledReceivablesCurrent
dei:LegalEntity

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Income Tax Expense Benefit
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Payable
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
DividendsAndRepurchase
Dividends Common Stock Cash
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▇▇▇▇███▇▇▇▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁21369.021310.021258.021930.023984.023902.023824.022131.020660.020834.012588.010862.010782.010316.09865.09789.08717.08629.08550.08592.08160.06778.06680.06606.06530.06170.05876.05788.05861.05785.05783.05699.05650.05571.05493.05420.05351.05256.05180.05171.05150.05464.05715.0NANANA
 us-gaap:SharesOutstanding dei:LegalEntity,us-gaap:StatementEquityComponents d:VirginiaElectricAndPowerCompany,us-gaap:CommonStock▁▁▁▁▁▁▁▁▁▁█▁█▁█0.2750.2750.2750.2750.2750.2750.2750.2750.2750.275275.00.275275.00.275275.0NANANA275.0NANANA275.0NANANA275.0NANANA275.0NANANA275.0NANANA275.0NANANA275.0NANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock▇▇▇▇████▇▇▃▃▃▃▂▂▂▂▂▂▂▁▁807.0806.0806.0816.0840.0839.0838.0823.0803.0802.0681.0655.0654.0653.0645.0644.0630.0629.0628.0627.0617.0597.0596.0NANANA585.0NANANA581.0NANANA576.0NANANA570.0NANANA581.0NANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:PreferredStock█████████▁▁2.02.02.02.02.02.02.02.02.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁806.6805.9NA833.8839.4838.2NA813.0802.6793.1NA654.9653.1650.5NA642.5629.2628.1NA626.0617.0598.2NA595.5592.5589.9NA584.6583.9582.9NA580.1578.9577.5NA574.7573.1571.9NA571.2575.2580.5NA586.4591.4600.9
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 806.6NANANA839.4NANA813.0802.5793.1NA653.9652.8650.5NA642.5629.2628.1NA625.9615.6596.6NA594.6591.5587.9NA583.1581.9581.6NA579.4578.1576.6NA573.8572.0570.5NA569.4573.4579.8NA585.0590.4599.9
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NA805.9NA833.8839.4838.2NA813.0802.5793.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▄▅▅▄▁▃▅▅▃▂▅▅▄▄▇▅▄▅▄▅▄▅▄▅▄▅▄▅▄▄▄▅▄▅▁▄▄▅▄▄▄▅▄▅█▄0.331.230.820.41-1.41-0.341.221.190.07-0.860.971.310.690.772.041.030.621.010.731.10.730.880.61.00.70.910.420.910.270.650.740.980.350.86-1.150.360.450.870.350.690.590.830.52999999999999940.982.980.29
us-gaap:EarningsPerShareDiluted ▄▅▅▄▁▃▅▅▃▂▅▅▄▄▇▅▄▅▄▅▄▅▄▅▄▅▄▅▄▄▄▅▄▅▁▄▄▅▄▄▄▅▄▅█▄0.331.230.820.41-1.41-0.341.211.170.05-0.860.971.30.690.772.041.030.621.010.731.10.730.880.61.00.70.910.420.90.270.650.740.980.350.86-1.150.360.450.860.350.690.580.820.52999999999999940.982.980.29
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare ▅█▇▆▇▃▇█▄▁3e-071.19e-069.8e-074.2e-071.01e-06-5.699999999999999e-079.9e-071.1399999999999999e-06-2.5e-07-1.1399999999999999e-06NANANANANANANANANANANANA6e-071e-067e-079.100000000000001e-074.2e-079.100000000000001e-072.7e-076.5e-077.4e-071.02e-064.6999999999999995e-078.6e-07-1.15e-063.7e-074.8e-078.6e-073.5e-076.9e-075.9e-078.3e-075.4e-079.8e-072.98e-065.4e-07
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare ▅█▇▆▇▃▇█▄▁3e-071.19e-069.8e-074.2e-079.000000000000001e-07-5.699999999999999e-079.9e-071.12e-06-2.5e-07-1.1399999999999999e-06NANANANANANANANANANANANA6e-071e-067e-079.100000000000001e-074.2e-079.000000000000001e-072.7e-076.5e-077.4e-071.02e-064.6999999999999995e-078.6e-07-1.15e-063.7e-074.8e-078.6e-073.5e-076.9e-075.8e-078.2e-075.399999999999992e-079.8e-072.98e-065.4e-07
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Cost Ratio dei:LegalEntity d:VirginiaElectricAndPowerCompany▃▄▃█▃▅▅█▅▅▄█▄▃▄▇▃▄▃▇▃▄▂▆▄▇▄▆▃▅▃▆▃▃▂▆▃▃▁▇▃▃▂▆▃1741.01830.01780.02248.01805.01930.01941.02264.01938.01965.01810.02232.01829.01748.01824.02154.01747.01831.01711.02211.01776.01890.01614.02058.01813.02137.01814.02053.01729.01983.01745.02059.01710.01781.01630.02086.01756.01754.01555.02177.01757.01757.01658.02111.01711.0NA
 EBT Margin dei:LegalEntity d:VirginiaElectricAndPowerCompany▃▄▃█▃▅▅█▅▅▄█▄▃▄▇▃▄▃▇▃▄▂▆▄▇▄▆▃▅▃▆▃▃▂▆▃▃▁▇▃▃▂▆▃1741.01830.01780.02248.01805.01930.01941.02264.01938.01965.01810.02232.01829.01748.01824.02154.01747.01831.01711.02211.01776.01890.01614.02058.01813.02137.01814.02053.01729.01983.01745.02059.01710.01781.01630.02086.01756.01754.01555.02177.01757.01757.01658.02111.01711.0NA
 Operating Margin dei:LegalEntity d:VirginiaElectricAndPowerCompany▃▄▃█▃▅▅█▅▅▄█▄▃▄▇▃▄▃▇▃▄▂▆▄▇▄▆▃▅▃▆▃▃▂▆▃▃▁▇▃▃▂▆▃1741.01830.01780.02248.01805.01930.01941.02264.01938.01965.01810.02232.01829.01748.01824.02154.01747.01831.01711.02211.01776.01890.01614.02058.01813.02137.01814.02053.01729.01983.01745.02059.01710.01781.01630.02086.01756.01754.01555.02177.01757.01757.01658.02111.01711.0NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▅▇▇▄▆▆██▅▂▆▇▆▇▇█▆▇▆▇▆▇▆▇▆▇▆▇▅▆▆▇▆▇▁▅▆▇▅▆▆▇▆363.0878.0856.027.0540.0631.01221.01314.0461.0-482.0834.01150.0742.0875.01004.01200.0801.01125.0819.01145.0781.0882.0638.01123.0773.01002.0638.0921.0394.0768.0804.01034.0548.0930.0-892.0518.0617.0915.0340.0833.0725.0963.0737.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▅▇▆▅▁▃▆▆▄▂▅▆▅▆▇▆▅▆▄▆▅▅▅▅▅▅▅▅▄▅▆▅▅▅▁▄▄▆▄▄▅▅▄▅█▅316.01054.0981.0320.0-1131.0-495.0993.0881.0102.0-711.0461.0872.0462.0634.01281.0719.0443.0696.0129.0712.0422.0535.0384.0478.0436.0543.0244.0429.0141.0404.0643.0516.0539.0552.0-1029.0157.0214.0693.090.0222.0334.0482.0154.0589.01602.0344.0
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest 10.0NA8.0-225.037.031.01.010.04.03.021.029.029.024.022.031.027.042.034.038.010.07.09.06.05.04.06.02.02.06.04.06.06.07.07.06.07.07.06.04.04.04.0NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▅▇▆▄▁▃▆▆▄▂▅▆▅▆▇▆▅▆▄▆▅▅▅▅▅▅▄▅▄▅▆▅▅▅▁▄▄▆▄▄▅▅▄▅█▅326.01054.0989.095.0-1094.0-464.0994.0891.0106.0-708.0482.0901.0491.0658.01303.0750.0470.0738.0163.0750.0432.0542.0393.0484.0441.0547.0250.0431.0143.0410.0647.0522.0545.0559.0-1022.0163.0221.0700.096.0226.0338.0486.0159.0593.01606.0348.0
us-gaap:CostsAndExpenses ▃▄▃▆▄▇▅▄▆█▃▂▂▃▂▁▂▂▂▁▁▂▁▁▁▃▂▂▃▄▃▃▃▃▇▄▃▃▄▄▃▅▄▄▃▅2675.02992.02665.03580.03045.03865.03254.02955.03509.04340.02527.02301.02346.02591.02206.01979.02012.02259.02267.01987.01817.02039.01918.01848.01974.02407.02305.02129.02419.02862.02381.02398.02432.02593.04059.02893.02436.02577.02838.02970.02616.03094.03009.02831.02690.03434.0
 us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal dei:LegalEntity,us-gaap:StatementScenario,us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations d:TerraNovaRenewablePartners,srt:ScenarioForecast,d:NonregulatedSolarProjectsNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GainLossOnInvestments ▇▆▇▇█▁▆▅▆▇▃▆▅▅▅212.0152.0311.0218.0409.0-526.0208.047.0100.0271.0-310.0168.065.0-25.016.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperations ▅█▇▅▇▁▇█259.0980.0816.0369.0863.0-466.0824.0937.0NANANANANANANANANANANANANANA357.0593.0413.0536.0243.0529.0159.0379.0431.0592.0272.0494.0-659.0214.0276.0493.0200.0392.0336.0479.0306.0575.01759.0323.0
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆██▅▁▄▇▇▅222.01192.01021.02.0-1688.0-518.0868.0863.0101.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments dei:LegalEntity d:VirginiaElectricAndPowerCompany▆▆▆▇▆▁▇▇▄▃▅▇▆▄▆█▆▆▅█▆▆▅▇▅▆▄▆▄▆▅▇▅▆▅▇▅▅▃▆▅▆▄▇▆483.0444.0425.0586.0550.0-311.0573.0697.0119.024.0268.0651.0428.0235.0517.0732.0501.0564.0262.0809.0458.0416.0282.0638.0394.0432.0245.0517.0123.0521.0324.0605.0406.0462.0360.0674.0278.0391.038.0479.0397.0448.0180.0610.0424.0NA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments dei:LegalEntity,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents d:VirginiaElectricAndPowerCompany,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedGainLossNetCashFlowHedgeParentNA-1.00.0-1.0-1.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments dei:LegalEntity,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents d:VirginiaElectricAndPowerCompany,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest▄▂▄▄█▁1.0-1.01.01.04.0-2.0NANANANANANANANANANANA5.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest▅▄▅▅▆█▁▆▄4.0-1.03.03.05.013.0-11.05.01.0NA12.0-3.0-1.0-1.0-114.06.06.044.07.020.013.03.024.02.020.033.0NANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest ▅█▇▅█▃▇█▄▁269.0980.0815.0112.0869.0-468.0820.0947.0-199.0-908.0NANANANANANANANANANANANANANANANA249.0531.0161.0385.0435.0598.0278.0501.0-652.0220.0283.0511.0207.0396.0340.0483.0311.0579.01763.0327.0
us-gaap:IncomeTaxExpenseBenefit ▄▅▄▃▂▄▄▄▄▄▄▅▄▄▁▅▄▅▄▅▄▄▄▅▄▅▄▅▄▄▄▅▄▅▂▄▄▅▄▄▄▅▅▅█▅-47.0212.0206.0-110.0-556.0-19.0143.051.043.0114.095.0262.088.0135.0-713.0272.0136.0275.094.0230.0152.0179.0111.0305.0190.0299.0-25.0228.063.0186.0183.0305.0116.0288.0-406.0139.0154.0260.023.0204.0208.0310.0254.0374.01134.0295.0
 us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity d:VirginiaElectricAndPowerCompany▃▃▃▄▃▁▅▄▂▂▂▄▃▃▄▇▅▆▄█▅▅▄▇▅▅▄▆▃▆▄▆▅▅▅▇▄▅▂▅▅▅▃▆▅69.070.089.0111.060.0-31.0146.095.019.04.029.0131.089.051.0110.0273.0183.0208.090.0306.0178.0153.095.0253.0148.0163.094.0203.054.0197.0125.0218.0141.0175.0140.0259.0106.0148.032.0182.0156.0170.070.0230.0157.0NA
 us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents d:VirginiaElectricAndPowerCompany,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedGainLossNetCashFlowHedgeParentNANANA0.0-1.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents d:VirginiaElectricAndPowerCompany,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestNANA0.00.02.0-1.0NANANANANANANANANANANA2.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:FairValueHedging,us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome▁▂▁█▂▁▂▂▂-4.04.0-3.063.0-2.0-7.02.01.08.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest1.0NA0.02.00.04.00.01.00.0NA3.00.0-1.0NA-41.02.02.016.02.07.05.01.09.00.08.012.0NANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementOperatingActivitiesSegment us-gaap:SegmentDiscontinuedOperationsNANA368.0NANANA95.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestAndDebtExpense █▁▄▅▇█▆▇▇▇▇▆▆▅▅▅▅▅▅▄▄▄▄▄▄▄█▄▄▄▄▃▃▄▃▃▄▄▃▄▃▄▄▄▃▃518.053.0241.0306.0449.0490.0401.0451.0452.0469.0440.0378.0361.0314.0300.0305.0308.0292.0295.0250.0239.0226.0230.0230.0221.0223.0498.0231.0227.0237.0229.0217.0203.0228.0215.0215.0224.0228.0177.0249.0216.0227.0232.0229.0188.0183.0
 us-gaap:LitigationSettlementExpense us-gaap:BusinessAcquisition d:SCANANANANANANANA192.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LitigationSettlementExpense us-gaap:BusinessAcquisition,us-gaap:SubsequentEventType d:DESC,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LitigationSettlementExpense us-gaap:BusinessAcquisition,us-gaap:SubsequentEventType d:SCANA,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LitigationSettlementExpense us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,d:DominionEnergySouthCarolinaInc▁█10.060.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▄▆▅▅▁▃▆▆▄▂▅▆▅▅▇▅▅▅▅▅▅▅▅▅▅▅▄▅▄▅▅▅▄▅▂▄▄▅▄▅▅▅▅▅█▄285.01008.0682.0356.0-1169.0-270.01009.0975.054.0-680.0641.0854.0449.0503.01312.0665.0390.0632.0457.0690.0452.0524.0357.0593.0413.0536.0243.0529.0159.0379.0431.0569.0202.0495.0-659.0209.0258.0494.0201.0392.0336.0479.0298.0575.01761.0174.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest 10.0NA8.0-225.037.031.01.010.04.03.021.029.029.023.021.031.027.042.034.038.010.07.09.06.05.04.06.02.02.06.04.06.06.07.07.06.07.07.06.04.04.04.05.04.04.04.0
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▆█▇▆▁▃██▅243.0964.0799.0353.0-1185.0-482.01000.0968.054.0NA560.0854.0478.0526.01333.0696.0417.0674.0491.0728.0462.0531.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:CorporateAndOther▃▃█▂▁▂▂▂▂▁▃▃▂▂▃▂▂▂▂▂▂▂287.071.07100.0-300.0-1900.0-1200.0-500.00.0-500.0-1600.0861.096.0-111.0-238.0406.0-7.0-31.021.0-421.0-26.011.0-48.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▃▄▄▃▄▄▅▅▃▂▄▅▄▄▄▅▄▅▄▅▄▄▄▅▄▄▄▄▃▄▄▄▄▄▁▃▄▄▃▄▄▄▄▅█▄363.0878.0856.027.0540.0631.01221.01314.0461.0-482.0834.01150.0742.0875.01004.01200.0801.01125.0819.01145.0781.0882.0638.01123.0773.01002.0638.0921.0394.0768.0804.01034.0548.0930.0-892.0518.0617.0915.0340.0833.0725.0963.0737.01119.03110.0734.0
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▅█▄▅▂▅▄▅▄▃▅▅▆▄▅▅▅▁▅▄▅▅▄▅▅▅▄▄▅▇▄█▅▁▄▄▇▄▃▅31.046.0299.0-36.038.0-225.0-16.0-94.048.0-31.0-180.018.013.0132.0-30.054.053.064.0-328.022.0-30.011.027.0-115.023.07.01.0-100.0-18.025.0212.0-53.0337.057.0-370.0-52.0-44.0199.0-111.0-170.0-2.0NANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▇▇▇▆█▁▇▅▅▇▇▇▆▅▃▅▅▅▅▅▅▅▅▄▅▅▅▅▅▄▄▅▄▅▄▅▄▅▅▄▄▅▅▅▄▅312.0367.0406.0281.0502.0-399.0333.0173.092.0388.0363.0373.0185.0100.0-84.073.060.0116.061.063.072.054.069.011.056.060.084.069.057.040.043.086.049.087.049.056.044.074.067.016.039.057.060.063.0-25.071.0
us-gaap:PreferredStockDividendsIncomeStatementImpact ██████▅▄▁16.016.017.016.016.016.09.07.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▄▆▅▄▁▃▆▆▄▂▅▆▅▅▇▅▅▅▅▅▅▅▅▅▅▅▄▅▄▅▅▅▄▅▂▄▄▅▄▅▅▅▄▅█▄295.01008.0690.0131.0-1132.0-239.01010.0985.058.0-677.0662.0883.0478.0526.01333.0696.0417.0674.0491.0728.0462.0531.0366.0599.0418.0540.0249.0531.0161.0385.0435.0575.0208.0502.0-652.0215.0265.0501.0207.0396.0340.0483.0303.0579.01765.0178.0
us-gaap:RegulatedAndUnregulatedOperatingRevenue ▃▆▄▅▅██▅▆▆▄▄▃▄▃▃▂▄▃▃▁▂▁▂▂▄▂▃▂▅▃▄▃▄▃▄▃▄▃▅▄▆▅▆▄▇3038.03870.03521.03607.03585.04496.04475.03782.03970.03858.03361.03451.03088.03466.03210.03179.02813.03384.03086.03132.02598.02921.02556.02971.02747.03409.02943.03050.02813.03630.03185.03432.02980.03523.03167.03332.03053.03492.03129.03803.03341.04057.03746.03950.03333.04168.0
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▃▆▅▅▄▇█▅▅▅▄▄▃▄▃▃▂▄▃▃▁▂▁▃▂▄▂▃▂▅▃▄▃▅▃▄▃▄▃▆▄▆▅▆▄▇3084.03840.03521.03536.03470.04323.04475.03623.03746.03631.03361.03451.03088.03466.03210.03179.02813.03384.03086.03132.02598.02921.02556.02971.02747.03409.02943.03050.02813.03630.03185.03432.02980.03523.03167.03332.03053.03492.03129.03803.03341.04057.03746.03950.03333.04168.0
us-gaap:Revenues ▃▆▄▅▅██▇▆▆▄▄▃▄▃▃▂▄▃▃▁▂▁▂▂▄▂▃▂▅▃▄▃▄▃▄▃▄▃▅▄▆▅▆▄▇3038.03870.03521.03607.03585.04496.04475.04269.03970.03858.03361.03451.03088.03466.03210.03179.02813.03384.03086.03132.02598.02921.02556.02971.02747.03409.02943.03050.02813.03630.03185.03432.02980.03523.03167.03332.03053.03492.03129.03803.03341.04057.03746.03950.03333.04168.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▇▇▇██████▇▅▅▅▅▅▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁97963.096703.095905.0104535.0103728.0104126.0103823.0102359.0100822.0100054.077914.079082.078075.077354.076585.075391.073902.072852.071610.069599.061369.059505.058797.056599.055942.055156.054327.052279.051499.050586.050096.048488.048426.047116.046838.046886.046416.046093.045614.044030.043411.042777.042817.0NANANA
us-gaap:Liabilities ▇▇▇█▇▇▇▇▇▇▅▅▅▅▅▅▅▅▅▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁71079.069665.069444.076469.072844.071374.069790.072402.072441.072455.055866.058656.058039.057312.057215.056889.056697.055671.054770.053407.045917.045490.045195.043323.043087.042740.042370.040572.039798.038753.038197.036989.037109.035931.035956.034751.034206.033867.033854.032141.031474.030577.030563.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇▇██████▇▅▅▅▅▅▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁97963.096703.095905.0104535.0103728.0104126.0103823.0102359.0100822.0100054.077914.079082.078075.077354.076585.075391.073902.072852.071610.069599.061369.059505.058797.056599.055942.055156.054327.052279.051499.050586.050096.048488.048426.047116.046838.046886.046416.046093.045614.044030.043411.042777.042817.0NANANA
us-gaap:StockholdersEquity ▆▆▆▆▇██▇▇▆▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁26550.026699.026117.026336.028871.030726.031994.029286.027697.026909.020107.018470.018064.017689.017142.016280.014973.014917.014605.014958.014252.012880.012664.012592.012422.012011.011555.011573.011567.011699.011642.011242.011003.010868.010568.011818.011896.011909.011446.011632.011680.011943.011997.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▂▂▂█▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▁▁▂▂▂▂▂▂6923.06662.06886.019829.06124.06536.06088.06269.05727.05975.05161.05702.04610.04281.04334.03994.03911.04285.04248.03799.04143.03711.04191.04123.04452.05053.05615.05446.05561.05478.05940.05210.05863.05148.05140.04653.04712.05019.05430.05267.04962.04932.05400.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▂▄▂▃▅█▂▃▃▃▂▃▂▂▂▂▂▄▂▂▃▂▄▂▂▂▃▂▃▂▃▃▂▁▂▁▂▂▁▂▁▂▁▃▃240.0477.0172.0413.0675.01192.0166.0378.0382.0422.0268.0310.0190.0189.0120.0227.0260.0486.0261.0251.0377.0218.0607.0238.0271.0275.0318.0218.0419.0228.0316.0287.0190.035.0248.081.0162.0133.0102.0212.080.0188.062.0446.0411.0NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▄▂▄▅█▂▃▄▄▃▃▃▃▁▂▃▄▁304.0562.0247.0558.0742.01267.0269.0440.0560.0627.0391.0387.0354.0334.065.0301.0324.0540.061.0NANANA632.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▅▅█▆▆▇█▆▆█▅▃▃▄▄▂▂▂▃▂▁▁▁▂▂▄▃▂▃▅▄▃▃▅▄▃▃▃▅▄▄▅▇1728.01841.02295.02002.02040.02177.02278.01972.01908.02236.01749.01539.01510.01615.01660.01292.01242.01361.01523.01259.01140.01175.01200.01289.01334.01589.01514.01339.01476.01805.01695.01499.01514.01758.01621.01510.01494.01539.01780.01646.01695.01837.02158.0NANANA
us-gaap:InventoryNet ▆▅▆▆▇▇▇█▇▇▅▅▅▄▅▆▅▅▆▅▄▄▄▄▃▃▅▄▃▁▂▃▂▁▃▃▃▃▄▄▃▁▂1538.01476.01550.01565.01735.01677.01742.01800.01724.01657.01418.01455.01429.01367.01477.01527.01469.01453.01524.01516.01351.01304.01348.01310.01260.01227.01410.01385.01261.01013.01176.01210.01154.01039.01259.01257.01251.01249.01348.01326.01194.01044.01163.0NANANA
us-gaap:InventoryRawMaterialsAndSupplies NANA1105.0NANANA1193.0NANANA1039.0NANANA1049.0NANANA1087.0NANANA902.0NANANA923.0NANANA689.0NANANA684.0NANANA641.0NANANA609.0NANANA
 us-gaap:InventoryRawMaterialsAndSupplies dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA581.0NANANA549.0NANANA550.0NANANA531.0NANANA525.0NANANA502.0NANANA455.0NANANA418.0NANANA385.0NANANA359.0NANANA314.0NANANA
us-gaap:OtherAssetsCurrent ▂▂▁▂▂▃▂▁▃▃▃▃▃▄▂▂▃▃▁▂▂▃▁▂▄▄▁█▇▆▂▅▆▅▂▄▄▄▁▅▅▅▂340.0479.0167.0232.0236.0574.0328.0169.0780.0732.0634.0697.0732.0974.0397.0425.0787.0776.0179.0493.0477.0704.047.0469.0844.01013.0117.02203.02020.01577.0335.01422.01485.01403.0296.01122.0960.01103.0118.01257.01214.01194.0506.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross ▇▆▆▆██████▅▅▅▅▅▅▅▅▅▄▄▃▃▃▃▃▂▂▂▂▂▂▂▁▁▂▁▁▁▁▁▁▁85293.084035.082959.081729.096527.095341.097466.096122.094873.093485.076578.076190.076458.075632.074823.073610.072163.070728.069556.068282.060490.059154.057776.055848.054448.052720.051406.049932.048698.047723.046969.046102.044610.043705.043364.044397.043732.042895.042033.042155.041163.040390.039855.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▇▇▆▆█████▇▅▅▅▅▅▄▄▄▄▄▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁26067.025614.025111.024941.028547.027945.028384.028144.027732.026918.022018.022005.021854.021503.021065.020799.020415.020012.019592.019394.016808.016531.016222.016067.015780.015494.015136.015048.014811.014596.014341.014241.014013.013753.013548.013831.013768.013564.013320.013744.013512.013308.013142.0NANANA
us-gaap:PropertyPlantAndEquipmentNet ▆▆▆▆██████▆▆▆▆▅▅▅▅▅▅▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁59226.058421.057848.056788.067980.067396.069082.067978.067141.066567.054560.054185.054604.054129.053758.052811.051748.050716.049964.048888.043682.042623.041554.039781.038668.037226.036270.034884.033887.033127.032628.031861.031554.030909.030773.031523.030921.030288.029670.028411.027651.027082.026713.0NANANA
us-gaap:LongTermInvestments ██▇▄▄▅▅▅▅▅▄▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁10856.010493.010238.06890.06984.07575.08217.07757.07596.07370.06560.07627.07208.07032.06964.07096.06858.06674.06343.06224.05980.05853.05774.05624.05585.05617.05561.05477.05458.05317.05102.04876.04387.04400.04191.04178.04098.04183.03985.03852.04194.04216.04151.0NANANA
us-gaap:Goodwill ▆▆▆▆██████▅▅▅▅▅▅▅▅▅▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁7405.07381.07381.07395.08946.08946.08946.08986.08985.08960.06410.06410.06405.06405.06405.06405.06399.06399.06399.06405.03294.03294.03294.03294.03294.03294.03044.03044.03044.03046.03086.03087.03125.03128.03130.03141.03141.03141.03141.03141.03141.03141.03141.0NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill NANA765.0NANANA791.0773.0878.0887.0670.0NANANA685.0NANANA618.0NANANA570.0NANANA570.0NANANA560.0NANANA536.0NANANA637.0NANANA642.0NANANA
 us-gaap:IntangibleAssetsNetExcludingGoodwill dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA334.0NANANA271.0NANANA250.0NANANA233.0NANANA225.0NANANA213.0NANANA205.0203.0202.0194.0193.0187.0184.0182.0181.0178.0188.0185.0183.0176.0217.0NA212.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA564.0NANANA499.0455.0468.0486.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA185.0NANANA212.0184.0191.0202.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseRightOfUseAsset us-gaap:DisposalGroupClassification,us-gaap:StatementBusinessSegments us-gaap:SegmentDiscontinuedOperations,d:GTSAndQPipeTransactionsNANA43.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ██▃▇▇▇▂▂▂▄▁▅▅▅▁▄▄▄▁▂▂▂▁▂▂▂▁▄▄▄▁▃▃▃▁▄▄▄▁▃▃▃▁4790.04953.01950.04184.04256.04109.01304.0862.0903.02234.0598.02842.02853.02809.0581.02582.02499.02339.0487.01045.01103.01069.0606.01159.01316.01322.0669.02191.02174.02127.0610.01976.02024.01835.0649.02085.02216.02143.0688.01949.01990.01963.0612.0NANANA
 us-gaap:EquitySecuritiesFvNi dei:LegalEntity,us-gaap:StatementGeographical,us-gaap:InvestmentType d:VirginiaElectricAndPowerCompany,country:US,us-gaap:EquitySecurities█▇█▅▄▁▅▄▄▃▁▃2306.02244.02279.02032.01883.01614.02027.01888.01858.01784.01585.01801.0NANA1565.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:StatementGeographical,us-gaap:InvestmentType country:US,us-gaap:EquitySecurities█▇█▅▄▁▅▄▄▃▁▃4771.04599.04680.04179.03851.03361.04238.03926.03875.03732.03330.03828.0NANA3426.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▂▃▄▂▃▃▅▂▂▃▃▁▂▂▃▂▂▂▄▂▁▂▂▂▃▄▄▃▃▅▅▄▃▄▅▄▃▃▆▅▅▅█774.0848.0944.0738.0797.0842.01115.0791.0787.0920.0914.0587.0660.0702.0875.0757.0695.0724.01000.0685.0589.0670.0726.0705.0842.0945.0952.0848.0852.01143.01168.0980.0909.0950.01137.01020.0917.0935.01250.01138.01125.01189.01562.0NANANA
us-gaap:AccruedLiabilitiesCurrent ▃▃▅▅▄▅█▇▅▃▁997.0957.01133.01146.01011.01089.01323.01263.01123.0957.0836.0NANANA848.0843.0725.0779.0798.0800.0561.0583.0515.0553.0527.0NA566.0NANANA609.0NANANA636.0NANANA648.0647.0582.0720.0849.0NANANA
 us-gaap:ContractWithCustomerLiabilityCurrent dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA114.0NANANA121.0NANANA121.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▅▅▄█▄▄▄▅▄▄▃▄▃▄▄▃▄▃▃▃▂▃▃▂▂▃▂▃▂▂▂▂▃▂▃▂▂▂▂▂▂▁▂11676.011836.010843.017560.09537.010448.09939.012191.09503.09776.07647.09212.08918.09339.09636.08559.09502.07842.08115.09027.07266.07518.08120.06746.06736.08021.07198.07579.07243.06351.06994.06453.07377.06972.07763.06562.06806.06654.06962.05496.05514.04501.05773.0NANANA
 us-gaap:LongTermDebtCurrent dei:LegalEntity,us-gaap:ConsolidatedEntities d:SBLHoldco,us-gaap:VariableInterestEntityPrimaryBeneficiary█▆▁35.034.032.0NA32.0NA31.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent NANA54.0NANANA59.058.059.062.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseLiabilityCurrent dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA28.0NANANA30.030.031.033.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▆▆▅▇█▄▇▇▇▅▆██▇▄▃▃▄▄▄▄▄▃▄▄▄▂▄▄▄▂▄▄▄▂▄▄▅▁▅▃▃▁2114.01924.01725.02376.02446.01414.02235.02261.02159.01795.01866.02589.02563.02321.01537.01023.01093.01321.01290.01514.01331.01463.01232.01405.01435.01454.0939.01515.01482.01518.0943.01537.01442.01370.0709.01486.01466.01660.0547.01601.01208.01247.0579.0NANANA
 us-gaap:TaxesPayableCurrent dei:LegalEntity,us-gaap:IncomeTaxAuthority,us-gaap:RelatedPartyTransactionsByRelatedParty d:VirginiaElectricAndPowerCompany,us-gaap:DomesticCountry,srt:AffiliatedEntityNANA17.0NANANA15.0NANANA34.0NANANA16.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TaxesPayableCurrent dei:LegalEntity,us-gaap:IncomeTaxAuthority,us-gaap:RelatedPartyTransactionsByRelatedParty d:VirginiaElectricAndPowerCompany,us-gaap:StateAndLocalJurisdiction,srt:AffiliatedEntityNANA2.0NANANA20.0NANANA2.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:TaxesPayableCurrent dei:LegalEntity,us-gaap:RelatedPartyTransactionsByRelatedParty d:VirginiaElectricAndPowerCompany,srt:AffiliatedEntityNANA19.0NANANA35.0NANANA36.0NANANA16.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:LongTermDebt dei:LegalEntity,us-gaap:LongtermDebtType d:VirginiaElectricAndPowerCompany,d:TaxExemptBondsNANANA322.0105.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent dei:LegalEntity d:VirginiaElectricAndPowerCompany███▇▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▁▁▁▁▁▂12760.012759.013207.012328.012328.012327.012325.011792.011291.011288.011321.010742.011091.011090.010496.010495.09749.010348.09852.08963.09562.09638.08949.08952.08970.08275.08726.08714.08716.08719.07974.07981.07398.07445.06251.06258.06285.06292.06246.06853.0NANA6702.0NANANA
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us-gaap:LongTermDebtAndCapitalLeaseObligations ▅▃▄▃█▅▄▄▇█▁34585.033248.033957.033145.037146.034615.033824.033635.036648.036861.031144.0NANANA30948.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▇▃▁▃6261.06202.05953.05812.05921.0NA6277.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent NANA1706.0NANANA2366.02571.02612.0NA2328.0NANANA2160.0NANANA2112.0NANANA1199.0NANANA1296.0NANANA481.01294.01299.01834.01831.0NANANA962.0NANANA765.0NANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA436.0NANANA782.0NANANA632.0NANANA505.0NANANA396.0NANANA316.0NANANA219.0NANANA147.0NANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:OtherPostretirementBenefitPlansDefinedBenefitNANA281.0NANANA314.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:PensionPlansDefinedBenefitNANA1424.0NANANA2052.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▁▁▁▆▇▇▇▂▂▂▇▇▇██████▄▄▄▃▂▁▁▁334.0339.0344.01730.02013.02026.02039.0671.0684.0690.01941.01956.01972.02353.02228.02222.02232.02264.02235.01234.01200.01135.0938.0684.0433.0405.0402.0NANANA0.00.057.060.057.060.057.060.057.0NANANA0.0NANANA
us-gaap:OtherLiabilitiesNoncurrent ▇▇▂███▂▂▂▃▁▅▅▅▁▅▅▅▁▂▂▂▁▂▂▂▁▂▂▂▁▁▁▁▁▂▂▂▁▂▂▂▁8265.08177.01394.09245.08812.08711.01517.01467.01297.03508.0541.05031.05097.05157.0863.05159.05138.05091.0852.02248.01939.01980.0674.01784.01782.02025.01003.01530.01319.01209.0793.0616.0657.0521.0556.01590.01530.01596.0613.01457.01325.01341.0590.0NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent NANA516.0NANANA442.0394.0404.0418.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA155.0NANANA180.0152.0158.0169.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA56.0NANANA65.068.067.066.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA25.0NANANA30.033.033.036.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA47.0NANANA55.061.059.058.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA20.0NANANA24.029.029.031.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA40.0NANANA45.050.049.049.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA15.0NANANA19.023.023.024.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA34.0NANANA36.040.039.039.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA11.0NANANA14.018.018.019.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA756.0NANANA582.0538.0531.0532.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA194.0NANANA205.0160.0160.0162.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▆▆▆▆▇██▇▇▆▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁26550.026699.026117.026336.028871.030726.031994.029286.027697.026909.020107.018470.018064.017689.017142.016280.014973.014917.014605.014958.014252.012880.012664.012592.012422.012011.011555.011573.011567.011699.011642.011242.011003.010868.010568.011818.011896.011909.011446.011632.011680.011943.011997.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▆▆▆▆▇██▇▆▆▄▄▄▄▃▃▃▃▃▂▂▂▂▁▁▁▁26884.027038.026461.028066.030884.032752.034033.029957.028381.027599.022048.020426.020036.020042.019370.018502.017205.017181.016840.016192.015452.014015.013602.013276.012855.012416.011957.0NANANA11642.011242.011060.010928.010625.011878.011953.011969.011503.0NANANA11997.0NANANA
us-gaap:CommonStockValue ▇▇▇▇███▇▇▇▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁21369.021310.021258.021930.023984.023902.023824.022131.020660.020834.012588.010862.010782.010316.09865.09789.08717.08629.08550.08592.08160.06778.06680.06606.06530.06170.05876.05788.05861.05785.05783.05699.05650.05571.05493.05420.05351.05256.05180.05171.05150.05464.05715.0NANANA
 us-gaap:AdditionalPaidInCapitalCommonStock dei:LegalEntity d:VirginiaElectricAndPowerCompany███████████████████████████████████▄▄▁▁▁▁1113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01113.01112.01112.01111.01111.01111.01111.0NA1111.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▂▂▁▁▂▄▆▅▅▆██▇█▆▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▄▃▄▃▅▅▅▅▅▅▄▄4434.04673.04189.04035.04480.06455.07576.07336.07124.07806.09219.09128.08820.08924.07936.07119.06938.07023.06854.06837.06585.06565.06458.06487.06278.06250.06095.06202.06023.06213.06183.06079.05836.05961.05790.06753.06847.06891.06697.06778.06665.06612.06418.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▂▂▁▁▁▂▂▂▂▂▃▃▃▇▇▆▆▆▇▇▇▇▇███████▇▇▆▆▇▇█▇▇███-1640.0-1671.0-1717.0-2016.0-1980.0-2018.0-1793.0-1777.0-1683.0-1731.0-1700.0-1520.0-1538.0-1551.0-659.0-628.0-682.0-735.0-799.0-471.0-493.0-463.0-474.0-501.0-386.0-409.0-416.0-417.0-317.0-299.0-324.0-536.0-483.0-820.0-877.0-507.0-455.0-411.0-610.0-499.0-329.0-327.0-330.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity d:VirginiaElectricAndPowerCompany▃▄▂▂▁▁▃▃▄▄▄▅▄▄██▇▇▇▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆-33.0-23.0-52.0-65.0-70.0-75.0-29.0-41.0-26.0-17.0-12.0-6.0-9.0-9.062.055.051.050.046.032.030.034.040.034.052.047.050.050.051.047.048.039.035.034.025.026.023.027.019.015.026.0NA24.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents d:VirginiaElectricAndPowerCompany,us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestNANA-60.0NANANA-34.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents d:VirginiaElectricAndPowerCompany,us-gaap:AccumulatedNetUnrealizedInvestmentGainLossNANA8.0NANANA5.0NANANA1.0NANANA74.0NANANA54.0NANANA47.0NANANA57.0NANANA48.0NANANA31.0NANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType us-gaap:OtherPostretirementBenefitPlansDefinedBenefitNANA-120.0NANANA-241.0NANANA-350.0NANANA-283.0NANANA-283.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType us-gaap:PensionPlansDefinedBenefitNANA-3207.0NANANA-3327.0NANANA-3477.0NANANA-3181.0NANANA-3200.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▁▁▁▆▇▇▇▂▂▂▇▇▇██████▄▄▄▃▂▁▁▁334.0339.0344.01730.02013.02026.02039.0671.0684.0690.01941.01956.01972.02353.02228.02222.02232.02264.02235.01234.01200.01135.0938.0684.0433.0405.0402.0NANANA0.00.057.060.057.060.057.060.057.0NANANA0.0NANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues ▁▁▁▂▁▁█▆▇▂▇▁▁▃▁▅▁▁▁▃▆▁49.048.00.0333.070.078.02003.01477.01674.0247.01724.075.082.0580.070.01076.077.079.073.0621.01383.075.0NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▇▃█▇█▇▇▆▆▆▇▆▆▅▇▆▇▅▇▅▆▆▇▆▆▆▅▄▅▄▆▅▆▄▆▅█▄▆▃▅▂▄▁█788.01452.0417.01674.01503.01633.01495.01396.01142.01171.01062.01286.01193.01232.0885.01312.0992.01360.0741.01368.0826.01192.01022.01293.01029.01131.01029.0963.0694.0753.0483.01159.0739.01052.0675.01064.0775.01623.0585.01111.0375.0912.0-59.0478.0-244.01650.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▄█▅▄▅▅▅▅▆▇▅▅▅▅▅▅▄▅▁▄▅▄▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▅▆█▆-1460.0-2308.01944.0-1526.0-1693.0-1641.0-1462.0-1327.0-1281.0-552.01011.0-1133.0-1053.0-1183.0-1120.0-1557.0-1622.0-1694.0-1674.0-5304.0-2200.0-1525.0-2153.0-1266.0-1585.0-1499.0-1648.0-1347.0-1267.0-919.0-1110.0-463.0-1023.0-862.0-1056.0-920.0-918.0-946.0-957.0-829.0-783.0-752.0-806.0-436.01832.0-171.0
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity d:VirginiaElectricAndPowerCompany▁▃▁▂▂▃▁▃▄▅▄▅▅▅▄▄▄▄▄▅▄▅▃▅▃▅▂▃▃▃▅▅▄▅▄▇▆▆▇▇▆█▄▅-919.0-783.0-904.0-851.0-874.0-774.0-926.0-801.0-718.0-620.0-690.0-667.0-647.0-639.0-709.0-735.0-669.0-702.0-737.0-651.0-689.0-647.0-794.0-595.0-777.0-622.0-850.0-745.0-763.0-776.0-653.0-611.0-682.0-655.0-731.0-467.0-526.0-558.0-516.0-458.0-562.0-411.0-717.0-596.0NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▅▁▄▄▅▄▄▄▃▂▄▄▄▄▄▄▄▅█▆▄▆▄▄▄▅▄▅▄▅▃▄▃▄▄▄▃▄▄▄▄▄▄▃▂414.01171.0-2672.0-332.0-335.01006.0-204.0-189.072.0-383.0-2069.0-120.0-120.0100.0128.0212.0404.0559.0943.03810.01533.0-56.01500.0-60.0552.0325.0719.0183.0764.078.0656.0-599.0439.0-403.0548.0-225.0172.0-646.0262.0-150.0300.0-34.0481.0-7.0-1262.0-1444.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▂▅▂▃▁█▃▃▃▄▃▄▄▄▃▃-258.0315.0-311.0-184.0-525.0998.0-171.0-120.0-67.0236.04.033.020.0149.0-116.0-23.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity d:VirginiaElectricAndPowerCompany▃▆▂▆▁█▃▅▄▃▄▄▅▃▄▂-7.021.0-28.023.0-36.052.0-13.012.02.0-15.06.02.014.0-8.08.0-28.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:BusinessAcquisition d:SCANANANA-4.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsPayable ▄▅█▅▅▃█▅▃▁█▅▄▄▆▆▄▃▇▅▄▅▅▄▄▄▆▅▁▆▇▅▅▃▇▆▅▁▅▅▄▁▇▆▄▄-63.021.0221.05.0-27.0-164.0221.00.0-162.0-284.0234.0-16.0-94.0-57.069.053.0-71.0-140.0186.03.0-55.0-37.023.0-49.0-88.0-85.089.0-33.0-311.053.0194.05.0-14.0-135.0155.049.010.0-275.06.0-25.0-95.0-299.0170.080.0-41.0-90.0
 us-gaap:IncreaseDecreaseInAccountsPayable dei:LegalEntity d:VirginiaElectricAndPowerCompanyNANA7.08.0-108.099.07.0-3.0-2.0-33.02.017.0-48.03.0-9.0-1.0-11.0-21.021.014.0-7.0-3.0-13.0-54.0-11.03.029.0-42.0-16.034.025.020.035.0-65.0-9.039.048.0-59.0-123.063.012.0-69.028.060.0NANA
us-gaap:IncreaseDecreaseInAccountsReceivable ▄▁█▅▃▂▇▅▁▂▆▄▃▃▇▄▂▃▆▄▃▃▃▄▁▄▅▃▁▅▅▄▂▅▄▄▃▁▅▂▄▁▇▃▂▃-3.0-334.0529.0105.0-151.0-245.0425.0138.0-339.0-153.0239.029.0-111.0-47.0350.060.0-171.0-136.0305.063.0-42.0-40.0-65.0-15.0-279.065.0169.0-147.0-336.0183.0196.0-6.0-216.0124.079.0-8.0-36.0-327.0162.0-251.016.0-292.0420.0-48.0-186.0-126.0
 us-gaap:IncreaseDecreaseInAccountsReceivable dei:LegalEntity d:VirginiaElectricAndPowerCompany█▁▆▇▇▃▆█▅▄▄▆▆▄▆▆▅▄▅▆▅▄▃▅▄▅▆▅▅▅▆▅▅▅▃▅▆▃▄▃█▃▅▆229.0-317.0114.0153.0122.0-123.042.0222.0-6.0-62.0-53.087.0104.0-78.059.060.0-16.0-76.0-34.0106.031.0-38.0-118.030.0-60.020.047.06.0-35.09.059.013.021.031.0-128.035.092.0-125.0-62.0-128.0241.0-127.0-29.066.0NANA
us-gaap:IncreaseDecreaseInInventories ▆▄▅▅▆▄▅▇▆▄▅▆▆▃▄▆▆▄▅▅▆▄▅▆▇▂▅▆█▂▄▆█▂▅▆▅▃▅▇█▃▄▇▇▁63.0-73.0-10.0-22.064.0-71.0-16.092.067.0-53.0-8.068.073.0-104.0-49.055.040.0-61.0-11.07.047.0-44.023.050.0101.0-148.04.041.0161.0-163.0-34.053.0143.0-133.02.040.024.0-99.023.0131.0150.0-119.0-58.0114.0122.0-213.0
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▆▇▅▂▆▇▁▄▇▆▄▁▄▄▄▄▆▅▂▅▇▄▃▄▆▄█▆▄▂▅▄▄▁▆▄▄▂▆▄▂▃▂▄▅▂200.0243.098.0-89.0176.0271.0-181.00.0281.0187.09.0-165.027.020.04.044.0157.071.0-119.074.0223.0-3.0-16.06.0187.051.0321.0155.033.0-117.070.0-10.053.0-200.0162.016.022.0-91.0174.016.0-103.0-63.0-116.013.082.0-154.0
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▇▃█▇█▇▇▆▆▆▇▆▆▅▇▆▇▅▇▅▆▆▇▆▆▆▅▄▅▄▆▅▆▄▆▅█▄▆▃▅▂▄▁█788.01452.0417.01674.01503.01633.01495.01396.01142.01171.01062.01286.01193.01232.0885.01312.0992.01360.0741.01368.0826.01192.01022.01293.01029.01131.01029.0963.0694.0753.0483.01159.0739.01052.0675.01064.0775.01623.0585.01111.0375.0912.0-59.0478.0-244.01650.0
us-gaap:NetIncomeLoss ▄▆▅▅▁▃▆▆▄▂▅▆▅▅▇▅▅▅▅▅▅▅▅▅▅▅▄▅▄▅▅▅▄▅▂▄▄▅▄▅▅▅▅▅█▄285.01008.0682.0356.0-1169.0-270.01009.0975.054.0-680.0641.0854.0449.0503.01312.0665.0390.0632.0457.0690.0452.0524.0357.0593.0413.0536.0243.0529.0159.0379.0431.0569.0202.0495.0-659.0209.0258.0494.0201.0392.0336.0479.0298.0575.01761.0174.0
us-gaap:ProfitLoss ▄▆▅▄▁▃▆▆▄▂▅▆▅▅▇▅▅▅▅▅▅▅▅▅▅▅▄▅▄▅▅▅▄▅▂▄▄▅▄▅▅▅▄▅█▄295.01008.0690.0131.0-1132.0-239.01010.0985.058.0-677.0662.0883.0478.0526.01333.0696.0417.0674.0491.0728.0462.0531.0366.0599.0418.0540.0249.0531.0161.0385.0435.0575.0208.0502.0-652.0215.0265.0501.0207.0396.0340.0483.0303.0579.01765.0178.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▄█▅▄▅▅▅▅▆▇▅▅▅▅▅▅▄▅▁▄▅▄▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▅▆█▆-1460.0-2308.01944.0-1526.0-1693.0-1641.0-1462.0-1327.0-1281.0-552.01011.0-1133.0-1053.0-1183.0-1120.0-1557.0-1622.0-1694.0-1674.0-5304.0-2200.0-1525.0-2153.0-1266.0-1585.0-1499.0-1648.0-1347.0-1267.0-919.0-1110.0-463.0-1023.0-862.0-1056.0-920.0-918.0-946.0-957.0-829.0-783.0-752.0-806.0-436.01832.0-171.0
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity d:VirginiaElectricAndPowerCompany▁▃▁▂▂▃▁▃▄▅▄▅▅▅▄▄▄▄▄▅▄▅▃▅▃▅▂▃▃▃▅▅▄▅▄▇▆▆▇▇▆█▄▅-919.0-783.0-904.0-851.0-874.0-774.0-926.0-801.0-718.0-620.0-690.0-667.0-647.0-639.0-709.0-735.0-669.0-702.0-737.0-651.0-689.0-647.0-794.0-595.0-777.0-622.0-850.0-745.0-763.0-776.0-653.0-611.0-682.0-655.0-731.0-467.0-526.0-558.0-516.0-458.0-562.0-411.0-717.0-596.0NANA
 us-gaap:PaymentsToAcquirePropertyPlantAndEquipment dei:LegalEntity d:VirginiaElectricAndPowerCompany█▇██▆▇█▆▃▄▃▃▄▄▄▆▄▅▅▄▄▄▅▃▆▄▇▆▆▆▄▄▅▄▅▂▂▂▂▂▂▁▃▃809.0766.0837.0827.0710.0764.0826.0737.0516.0563.0532.0526.0600.0570.0579.0698.0572.0647.0654.0609.0622.0604.0634.0548.0709.0583.0791.0735.0694.0691.0600.0577.0625.0592.0680.0446.0473.0483.0493.0494.0490.0408.0534.0538.0NANA
 us-gaap:PaymentsToAcquirePropertyPlantAndEquipment dei:LegalEntity,us-gaap:RelatedPartyTransaction,us-gaap:RelatedPartyTransactionsByRelatedParty d:VirginiaElectricAndPowerCompany,d:ServicesProvidedByAffiliates,srt:AffiliatedEntity█▄▂▅▂▂▁▁▂▁▃▂▄▄▅▁▄44.038.034.039.034.034.033.033.034.033.036.034.038.037.040.033.037.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▅▁▄▄▅▄▄▄▃▂▄▄▄▄▄▄▄▅█▆▄▆▄▄▄▅▄▅▄▅▃▄▃▄▄▄▃▄▄▄▄▄▄▃▂414.01171.0-2672.0-332.0-335.01006.0-204.0-189.072.0-383.0-2069.0-120.0-120.0100.0128.0212.0404.0559.0943.03810.01533.0-56.01500.0-60.0552.0325.0719.0183.0764.078.0656.0-599.0439.0-403.0548.0-225.0172.0-646.0262.0-150.0300.0-34.0481.0-7.0-1262.0-1444.0
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▃▁▃▃▇▃▅▄▁▂▄▅▄▃▂▂▂▄▅█▂▃▂▃▃▁█▃▁▃▃▂▃▃▁▃▁▂▁▃▁▃▂1100.0150.0900.01322.03405.0950.02076.01500.0198.0600.01962.02000.01450.0950.0400.0750.0780.01950.01992.03800.0680.01250.0700.01062.01200.00.03935.01000.00.01150.01200.0585.01100.01250.00.01050.00.0450.075.01185.00.01060.0540.0NANANA
us-gaap:RepaymentsOfLongTermDebt ▃▃▃▃▄▄▃█▄▅▅▃▅▄▃▄▃▃▃▄▃▃▃▄▃▃▆▃▃▃▃▃▃▄▄▄▃▃▃▃▃▃▁▃561.0161.0333.0336.01278.0932.0521.05217.01161.02217.02528.0314.01660.01180.043.01039.089.0401.0441.0669.04.0496.0217.0667.05.03.03268.065.052.0608.031.029.0473.0712.0638.0869.064.0104.0563.036.036.02.0-1906.03.0NANA
us-gaap:PaymentsOfDividendsCommonStock ▄▄▄█████▇▇▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁508.0508.0511.0785.0789.0788.0759.0755.0736.0733.0550.0546.0545.0544.0496.0486.0475.0474.0440.0438.0432.0417.0386.0385.0384.0381.0350.0350.0349.0349.0326.0326.0326.0324.0303.0303.0302.0301.0281.0280.0283.0285.0266.0266.0269.0275.0
us-gaap:PaymentsForRepurchaseOfCommonStock NANA695.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA0.00.00.00.00.00.0327.0274.00.0400.0309.0191.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2136921310212582193023984239022382422131206602083412588108621078210316986597898717862985508592816067786680660665306170587657885861578557835699565055715493542053515256518051715150546457156525
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.822.022.221.023.123.022.921.620.520.816.213.713.813.312.913.011.811.811.912.313.311.411.411.711.711.210.811.111.411.411.511.811.711.811.711.611.511.411.411.711.912.813.315.3

us-gaap:CommonStockValue dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value573857385738573857385738573857385738573857385738573857385738573857385738573857385738573857385738573757385738573857385738573857385738573857385738573857385738573857385738
Percentage of CommonStockValue26.926.927.026.223.924.024.125.927.827.545.652.853.255.658.258.665.866.567.166.870.384.785.986.987.993.097.799.197.999.299.2100.7101.6103.0104.5105.9107.2109.2110.8111.0111.4100.4
Percentage of Assets5.95.96.05.55.55.55.55.65.75.77.47.37.37.47.57.67.87.98.08.29.39.69.810.110.310.410.611.011.111.311.511.811.812.212.312.212.412.412.613.013.213.4
Percentage of Assets d:VirginiaElectricAndPowerCompany12.713.113.113.413.614.013.914.114.314.615.615.715.816.116.316.616.817.017.217.517.718.118.118.818.919.419.420.120.320.821.321.822.222.823.123.724.024.324.424.624.825.8

Shares Outstanding

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

us-gaap:SharesOutstanding

d:VirginiaElectricAndPowerCompany, us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.2750.2750.2750.2750.2750.2750.2750.2750.2750.2752750.2752750.275275275275275275275275275242210
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value807806806816840839838823803802681655654653645644630629628627617597596585581576570581599583
Percentage of SharesOutstanding293454.5293090.9293090.9296727.3305454.5305090.9304727.3299272.7292000.0291636.4247.6238181.8237.8237454.5234.50.00.00.0228.40.00.00.0216.7212.7211.3209.5207.3211.3247.5277.6

us-gaap:PreferredStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.02.02.02.02.02.02.02.02.00.00.0
Percentage of SharesOutstanding727.3727.3727.3727.3727.3727.3727.3727.3727.30.00.0

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
Value806805833839838813802793654653650642629628626617598595592589584583582580578577574573571571575580586591600
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 End2021-06-302020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value806839813802793653652650642629628625615596594591587583581581579578576573572570569573579585590599
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value805833839838813802793
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.331.230.820.41-1.41-0.341.221.190.07-0.860.971.310.690.772.041.030.621.010.731.10.730.880.61.00.70.910.420.910.270.650.740.980.350.86-1.150.360.450.870.350.690.590.830.530.982.980.29
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.331.230.820.41-1.41-0.341.211.170.05-0.860.971.30.690.772.041.030.621.010.731.10.730.880.61.00.70.910.420.90.270.650.740.980.350.86-1.150.360.450.860.350.690.580.820.530.982.980.29
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.31.190.980.421.01-0.570.991.14-0.25-1.140.61.00.70.910.420.910.270.650.741.020.470.86-1.150.370.480.860.350.690.590.830.540.982.980.54
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.31.190.980.420.9-0.570.991.12-0.25-1.140.61.00.70.910.420.90.270.650.741.020.470.86-1.150.370.480.860.350.690.580.820.540.982.980.54
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3161054981320-1131.0-495.0993881102-711.04618724626341281719443696129712422535384478436543244429141404643516539552-1029.0157214693902223344821545891602344
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue10.427.227.98.9-31.5-11.022.223.32.6-18.413.725.315.018.339.922.615.720.64.222.716.218.315.016.115.915.98.314.15.011.120.215.018.115.7-32.54.77.019.82.95.810.011.90.014.948.18.3

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value404403349480495-326.043958791152335233391894144633193601865052762571933672512661513137332320839126629621941816825110.0286241280
Percentage of ComprehensiveIncomeNetOfTax127.838.235.6150.0-43.865.944.266.689.2-2.150.560.073.429.832.364.472.051.7144.270.965.448.050.376.857.649.061.973.051.880.032.375.849.453.6-21.3266.278.536.211.1128.872.258.1
Percentage of RegulatedAndUnregulatedOperatingRevenue13.310.49.913.313.8-7.39.815.52.30.46.915.211.05.512.914.611.310.66.016.110.68.87.612.49.17.85.110.32.68.96.511.48.98.46.912.55.57.20.37.57.26.9
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany23.222.019.621.427.4-16.922.625.94.70.812.923.418.510.822.721.518.319.710.922.815.513.612.017.813.812.48.315.24.216.311.919.015.616.613.420.09.614.30.613.113.715.9

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value10.08.0-225.037311.010.04.03.02129292422312742343810.07.09.06.05.04.06.02.02.06.04.06.06.07.07.06.07.07.06.04.04.04.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.2-6.21.00.70.00.30.10.10.60.80.90.70.71.01.01.21.11.20.40.20.40.20.20.10.20.10.10.20.10.20.20.20.20.20.20.20.20.10.10.1

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
Value326105498995-1094.0-464.0994891106-708.04829014916581303750470738163750432542393484441547250431143410647522545559-1022.0163221700962263384861595931606348
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 RegulatedAndUnregulatedOperatingRevenue10.727.228.12.6-30.5-10.322.223.62.7-18.414.326.115.919.040.623.616.721.85.323.916.618.615.416.316.116.08.514.15.111.320.315.218.315.9-32.34.97.220.03.15.910.112.00.015.048.28.3

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
Value2675299226653580304538653254295535094340252723012346259122061979201222592267198718172039191818481974240723052129241928622381239824322593405928932436257728382970261630943009283126903434
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 RegulatedAndUnregulatedOperatingRevenue88.177.375.799.384.986.072.778.188.4112.575.266.776.074.868.762.371.566.873.563.469.969.875.062.271.970.678.369.886.078.874.869.981.673.6128.286.879.873.890.778.178.376.30.071.780.782.4

us-gaap:CostsAndExpenses dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value117012821283156111702063128214441700184313921476129613841205130711341178134212971223137612401317133216121502145915241370133713801247125112131340139512861500160912861246142314381232
Percentage of CostsAndExpenses43.742.848.143.638.453.439.448.948.442.555.164.155.253.454.666.056.452.159.265.367.367.564.771.367.567.065.268.563.047.956.257.551.348.229.946.357.349.952.954.249.240.347.350.845.8
Percentage of RegulatedAndUnregulatedOperatingRevenue38.533.136.443.332.645.928.638.242.847.841.442.842.039.937.541.140.334.843.541.447.147.148.544.348.547.351.047.854.237.742.040.241.835.538.340.245.736.847.942.338.530.70.036.437.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany67.270.172.169.464.8106.966.063.887.793.876.966.170.979.266.160.764.964.378.458.768.972.876.864.073.575.482.871.188.169.176.667.072.970.274.464.279.473.396.573.973.270.90.068.172.0

Disposal Group Not Discontinued Operation Gain Loss On Disposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal dei:LegalEntity, us-gaap:StatementScenario, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

d:TerraNovaRenewablePartners, srt:ScenarioForecast, d:NonregulatedSolarProjects


Disposal
Period End2021-09-30
Value25
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:TerraNovaRenewablePartners srt:ScenarioForecast d:NonregulatedSolarProjects0.0

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value212152311218409-526.020847100271-310.016865-25.016
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue7.03.98.86.011.4-11.74.61.22.57.0-9.24.92.1-0.70.5

us-gaap:GainLossOnInvestments us-gaap:ConsolidationItems, us-gaap:InvestmentType

us-gaap:OperatingSegments, d:NuclearDecommissioningTrustFund


Gain
Period End2021-06-302021-03-312020-06-302020-03-31
Value194134393-538.0
Percentage of GainLossOnInvestments91.588.296.1102.3
Percentage of RegulatedAndUnregulatedOperatingRevenue6.43.511.0-12.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:NuclearDecommissioningTrustFund0.00.00.00.0

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value259980816369863-466.0824937357593413536243529159379431592272494-659.02142764932003923364793065751759323
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue8.525.323.210.224.1-10.418.424.814.020.015.015.78.317.35.710.413.517.29.114.0-20.86.49.014.16.410.310.111.80.014.652.87.7

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value222119210212.0-1688.0-518.0868863101
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue7.330.829.00.1-47.1-11.519.422.82.5

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

d:DominionCovePointLNGLP


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value136138131133
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest61.311.6-7.8-25.7
Percentage of RegulatedAndUnregulatedOperatingRevenue4.53.63.73.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:DominionCovePointLNGLP0.00.00.00.0

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments dei:LegalEntity

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

d:VirginiaElectricAndPowerCompany


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value483444425586550-311.05736971192426865142823551773250156426280945841628263839443224551712352132460540646236067427839138479397448180610424
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue15.911.512.116.215.3-6.912.818.43.00.68.018.913.96.816.123.017.816.78.525.817.614.211.021.514.312.78.317.04.414.410.217.613.613.111.420.29.111.21.212.611.911.00.015.412.7
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany27.724.323.926.130.5-16.129.530.86.11.214.829.223.413.428.334.028.730.815.336.625.822.017.531.021.720.213.525.27.126.318.629.423.725.922.132.315.822.32.422.022.625.50.028.924.8

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments dei:LegalEntity, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

d:VirginiaElectricAndPowerCompany, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Income
Period End2021-03-312020-12-312020-09-302020-06-30
Value-1.00.0-1.0-1.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-0.20.0-0.2-0.2
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.00.0-0.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312017-03-31
Value1.0-1.01.01.04.0-2.05.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments0.2-0.20.20.20.70.60.9
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.00.00.00.1-0.00.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:FairValueHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-16.0-17.0-15.0-251.0-7.0-29.06.07.029
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-3.3-3.8-3.5-42.8-1.39.31.01.024.4
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.5-0.4-0.4-7.0-0.2-0.60.10.20.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:FairValueHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4.0-1.03.03.05.013-11.05.01.012-3.0-1.0-1.0-114.06.06.0447.020133.0242.02033
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments0.8-0.20.70.50.9-4.2-1.90.70.84.5-0.5-0.2-0.4-22.10.81.27.82.72.52.80.78.50.35.17.6
Percentage of RegulatedAndUnregulatedOperatingRevenue0.1-0.00.10.10.10.3-0.20.10.00.4-0.1-0.0-0.0-3.60.20.21.30.20.60.50.10.90.10.71.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value269980815112869-468.0820947-199.0-908.0249531161385435598278501-652.02202835112073963404833115791763327
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue8.925.323.13.124.2-10.418.325.0-5.0-23.58.517.45.710.613.717.49.314.2-20.66.69.314.66.610.410.211.90.014.752.97.8

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

d:VirginiaElectricAndPowerCompany, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Income
Period End2021-03-312020-12-312020-09-302020-06-30
Value-1.0-1.0-1.00.0
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest-0.1-0.1-0.90.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.0-0.0-0.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312017-03-31
Value1.0-1.01.01.02.0-1.03.0
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest0.4-0.10.10.90.20.20.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.00.00.00.1-0.00.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:FairValueHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-12.0-13.0-12.0-188.0-5.0-22.04.06.021
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest-4.5-1.3-1.5-167.9-0.64.70.50.6-10.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.4-0.3-0.3-5.2-0.1-0.50.10.20.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:FairValueHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3.0-1.03.01.05.09.0-9.04.01.09.0-3.00.0-1.0-73.04.04.0285.0138.02.0152.01221
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest1.1-0.10.40.90.6-1.9-1.10.4-0.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.1-0.00.10.00.10.2-0.20.10.00.3-0.10.0-0.0-2.30.10.10.80.20.40.30.10.60.10.40.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-11-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-47.0212336206-110.0-556.0-19.014351431149526288135-713.027213627594230152179111305190299-25.022863186183305116288-406.0139154260232042083102543741134295
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-1.55.50.05.9-3.0-15.5-0.43.21.31.13.02.87.62.83.9-22.28.64.88.13.07.35.96.14.310.36.98.8-0.87.52.25.15.78.93.98.2-12.84.25.07.40.75.46.27.60.09.534.07.1

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value69708911160-31.014695194.0291318951110273183208903061781539525314816394203541971252181411751402591061483218215617070230157
Percentage of IncomeTaxExpenseBenefit-146.833.043.2-100.9-10.8163.2102.1186.344.23.530.550.0101.137.8-15.4100.4134.675.695.7133.0117.185.585.683.077.954.5-376.089.085.7105.968.371.5121.660.8-34.5186.368.856.9139.189.275.054.827.661.513.8
Percentage of RegulatedAndUnregulatedOperatingRevenue2.31.82.53.11.7-0.73.32.50.50.10.93.82.91.53.48.66.56.12.99.86.95.23.78.55.44.83.26.71.95.43.96.44.75.04.47.83.54.21.04.84.74.20.05.84.7
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany4.03.85.04.93.3-1.67.54.21.00.21.65.94.92.96.012.710.511.45.313.810.08.15.912.38.27.65.29.93.19.97.210.68.29.88.612.46.08.42.18.48.99.70.010.99.2

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

d:VirginiaElectricAndPowerCompany, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Income
Period End2020-09-302020-06-30
Value0.0-1.0
Percentage of IncomeTaxExpenseBenefit-0.00.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2020-12-312020-09-302020-06-302020-03-312017-03-31
Value0.00.02.0-1.02.0
Percentage of IncomeTaxExpenseBenefit0.0-0.0-0.45.30.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.1-0.00.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:FairValueHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-4.04.0-3.063-2.0-7.02.01.08.0
Percentage of IncomeTaxExpenseBenefit8.51.9-1.5-57.30.436.81.42.018.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.10.1-0.11.7-0.1-0.20.00.00.2
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:FairValueHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1.00.02.00.04.00.01.00.03.00.0-1.0-41.02.02.0162.07.05.01.09.00.08.012
Percentage of IncomeTaxExpenseBenefit-2.10.0-1.8-0.0-21.10.02.00.03.20.0-1.15.80.71.55.82.13.03.30.68.10.04.24.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.10.00.10.00.00.00.10.0-0.0-1.30.10.10.50.10.20.20.00.40.00.30.4
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementOperatingActivitiesSegment

us-gaap:SegmentDiscontinuedOperations


Income
Period End2020-12-312019-12-31
Value36895
Percentage of IncomeTaxExpenseBenefit178.666.4
Percentage of RegulatedAndUnregulatedOperatingRevenue10.52.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:SegmentDiscontinuedOperations0.00.0

Interest And Debt Expense

us-gaap:InterestAndDebtExpense

us-gaap:InterestAndDebtExpense


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
Value51853241306449490401451452469440378361314300305308292295250239226230230221223498231227237229217203228215215224228177249216227232229188183
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue17.11.46.88.512.510.99.011.911.412.213.111.011.79.19.39.610.98.69.68.09.27.79.07.78.06.516.97.68.16.57.26.36.86.56.86.57.36.55.76.56.55.60.05.85.64.4

us-gaap:InterestAndDebtExpense dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value128136118135137126116138135135123130126132121128125120116118113114111116108108100101103107999384938897100100411148492888883
Percentage of InterestAndDebtExpense24.7256.649.044.130.525.728.930.629.928.828.034.434.942.040.342.040.641.139.347.247.350.448.350.448.948.420.143.745.445.143.242.941.440.840.945.144.643.923.245.838.940.537.938.444.1
Percentage of RegulatedAndUnregulatedOperatingRevenue4.23.53.43.73.82.82.63.63.43.53.73.84.13.83.84.04.43.53.83.84.33.94.33.93.93.23.43.33.72.93.12.72.82.62.82.93.32.91.33.02.52.30.02.22.5
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany7.47.46.66.07.66.56.06.17.06.96.85.86.97.66.65.97.26.66.85.36.46.06.95.66.05.15.54.96.05.45.74.54.95.25.44.75.75.72.65.24.85.20.04.24.9

us-gaap:InterestAndDebtExpense dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

d:VirginiaElectricAndPowerCompany, us-gaap:InterestRateContract, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Interest
Period End2021-03-312020-12-312020-09-302020-06-30
Value1.00.01.01.0
Percentage of InterestAndDebtExpense1.90.00.30.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:InterestRateContract us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.0

us-gaap:InterestAndDebtExpense us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:InterestRateContract, us-gaap:FairValueHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value161617-23.02225141213
Percentage of InterestAndDebtExpense3.130.27.1-7.54.95.13.52.72.9
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.40.5-0.60.60.60.30.30.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:InterestRateContract us-gaap:FairValueHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

Litigation Settlement Expense

us-gaap:LitigationSettlementExpense us-gaap:BusinessAcquisition

us-gaap:LitigationSettlementExpense

d:SCANA


Litigation
Period End2020-08-312019-12-31
Value32192
Percentage of LitigationSettlementExpense100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:SCANA0.00.0

us-gaap:LitigationSettlementExpense us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

d:DESC, us-gaap:SubsequentEvent


Litigation
Period End2021-07-31
Value99
Percentage of LitigationSettlementExpense0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:DESC us-gaap:SubsequentEvent0.0

d:SCANA, us-gaap:SubsequentEvent


Litigation
Period End2020-07-31
Value32
Percentage of LitigationSettlementExpense0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:SCANA us-gaap:SubsequentEvent0.0

us-gaap:LitigationSettlementExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, d:DominionEnergySouthCarolinaInc


Litigation
Period End2021-06-302021-03-31
Value10.060
Percentage of LitigationSettlementExpense0.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.31.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:DominionEnergySouthCarolinaInc0.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2851008682356-1169.0-270.0100997554-680.06418544495031312665390632457690452524357593413536243529159379431569202495-659.02092584942013923364792985751761174
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue9.426.019.49.9-32.6-6.022.525.81.4-17.619.124.714.514.540.920.913.918.714.822.017.417.914.020.015.015.78.317.35.710.413.516.66.814.1-20.86.38.514.16.410.310.111.80.014.652.84.2

us-gaap:NetIncomeLoss dei:LegalEntity

d:VirginiaElectricAndPowerCompany


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
Value414374336475490-280.042760210020239520339184407459318356172503280263187385246269151314693241993872652872204151722436.0297241278110380267
Percentage of NetIncomeLoss145.337.149.3133.4-41.9103.742.361.7185.2-2.937.360.975.536.631.069.081.556.337.672.961.950.252.464.959.650.262.159.443.485.546.268.0131.258.0-33.4198.666.749.23.075.871.758.036.966.115.2
Percentage of RegulatedAndUnregulatedOperatingRevenue13.69.79.513.213.7-6.29.515.92.50.57.115.111.05.312.714.411.310.55.616.110.89.07.313.09.07.95.110.32.58.96.211.38.98.16.912.55.67.00.27.87.26.90.09.68.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany23.820.418.921.127.1-14.522.026.65.21.013.223.318.510.522.321.318.219.410.122.715.813.911.618.713.612.68.315.34.016.311.418.815.516.113.519.99.813.90.413.613.715.80.018.015.6

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

d:VirginiaElectricAndPowerCompany, d:DominionEnergyVirginia


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value429432407615435427404628393358
Percentage of NetIncomeLoss150.542.959.7172.8-37.2-158.140.064.4727.8-52.6
Percentage of RegulatedAndUnregulatedOperatingRevenue14.111.211.617.112.19.59.016.69.99.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany d:DominionEnergyVirginia0.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-15.0-58.0-71.0-140.055-707.023-26.0-293.0-338.0-26.0-61.0-108.0-54.0-181.01.0-44.02.0-6.01.0-12.04.0-46.03.0-144.0-119.0-5.0
Percentage of NetIncomeLoss-5.3-5.8-10.4-39.3-4.7261.92.3-2.7-542.649.7-6.3-11.4-44.4-10.2-113.80.3-10.20.4-3.00.21.81.9-17.80.6-71.6-30.4-1.5
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.5-1.5-2.0-3.91.5-15.70.5-0.7-7.4-8.8-0.9-1.8-3.7-1.8-6.40.0-1.40.1-0.20.0-0.40.1-1.50.1-4.6-3.1-0.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

d:VirginiaElectricAndPowerCompany, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value414374336475490-280.042760210020239520339184
Percentage of NetIncomeLoss145.337.149.3133.4-41.9103.742.361.7185.2-2.937.360.975.536.6
Percentage of RegulatedAndUnregulatedOperatingRevenue13.69.79.513.213.7-6.29.515.92.50.57.115.111.05.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, d:ContractedAssets


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value10415072111
Percentage of NetIncomeLoss36.514.9-6.2-41.1
Percentage of RegulatedAndUnregulatedOperatingRevenue3.43.92.02.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:ContractedAssets0.00.00.00.0

us-gaap:OperatingSegments, d:DominionEnergySouthCarolina


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value841027594
Percentage of NetIncomeLoss29.510.1-6.4-34.8
Percentage of RegulatedAndUnregulatedOperatingRevenue2.82.62.12.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:DominionEnergySouthCarolina0.00.00.00.0

us-gaap:OperatingSegments, d:DominionEnergyVirginia


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value431434437429
Percentage of NetIncomeLoss151.243.1-37.4-158.9
Percentage of RegulatedAndUnregulatedOperatingRevenue14.211.212.29.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:DominionEnergyVirginia0.00.00.00.0

us-gaap:OperatingSegments, d:GasDistributionSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value9525187224
Percentage of NetIncomeLoss33.324.9-7.4-83.0
Percentage of RegulatedAndUnregulatedOperatingRevenue3.16.52.45.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:GasDistributionSegment0.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-06-302020-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-429.071-1840.0-1128.0-140.0-17.0-238.0-234.015-27.0-140.0-75.0-83.0-93.0-395.0-60.0
Percentage of NetIncomeLoss-150.57.0157.4417.8-35.9-2.7-52.1-33.93.3-5.2-39.2-12.6-20.1-17.4-162.6-11.3
Percentage of RegulatedAndUnregulatedOperatingRevenue-14.11.8-51.3-25.1-5.0-0.5-7.7-7.50.6-0.9-5.5-2.5-3.0-2.7-13.4-2.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments

d:ContractedAssets


Net
Period End2020-09-302019-09-30
Value11286
Percentage of NetIncomeLoss31.58.8
Percentage of RegulatedAndUnregulatedOperatingRevenue3.12.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:ContractedAssets0.00.0

d:DominionEnergySouthCarolina


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value15775941669571
Percentage of NetIncomeLoss44.1-6.4-34.817.0175.9-10.4
Percentage of RegulatedAndUnregulatedOperatingRevenue4.42.12.14.42.41.8
Percentage of RegulatedAndUnregulatedOperatingRevenue d:DominionEnergySouthCarolina0.00.00.00.00.00.0

d:DominionEnergyVirginia


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value613437429629393361
Percentage of NetIncomeLoss172.2-37.4-158.964.5727.8-53.1
Percentage of RegulatedAndUnregulatedOperatingRevenue17.012.29.516.69.99.4
Percentage of RegulatedAndUnregulatedOperatingRevenue d:DominionEnergyVirginia0.00.00.00.00.00.0

d:GasDistributionSegment


Net
Period End2020-09-302020-06-302019-09-302019-06-30
Value64874366
Percentage of NetIncomeLoss18.0-7.44.4122.2
Percentage of RegulatedAndUnregulatedOperatingRevenue1.82.41.11.7
Percentage of RegulatedAndUnregulatedOperatingRevenue d:GasDistributionSegment0.00.00.00.0

us-gaap:CorporateAndOther


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-590.0-1973.0-1298.0-79.0-681.0-1634.013-221.0-328.0-29.0-140.0-17.0-234.0-83.0-93.0-395.0-60.0-246.0-269.0-118.0-62.0-219.0-53.0-1116.0-377.0-146.0-54.0-180.0-208.0-71.0
Percentage of NetIncomeLoss-165.7168.8480.7-8.1-1261.1240.31.5-49.2-65.2-4.4-35.9-2.7-33.9-20.1-17.4-162.6-11.3-154.7-71.0-27.4-10.9-108.4-10.7169.3-180.4-56.6-10.9-89.6-53.1-21.1
Percentage of RegulatedAndUnregulatedOperatingRevenue-16.4-55.0-28.9-2.1-17.2-42.40.4-7.2-9.5-0.9-5.0-0.5-7.5-3.0-2.7-13.4-2.0-8.7-7.4-3.7-1.8-7.3-1.5-35.2-11.3-4.8-1.5-5.8-5.5-2.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10.08.0-225.037311.010.04.03.02129292321312742343810.07.09.06.05.04.06.02.02.06.04.06.06.07.07.06.07.07.06.04.04.04.05.04.04.04.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.2-6.21.00.70.00.30.10.10.60.80.90.70.71.01.01.21.11.20.40.20.40.20.20.10.20.10.10.20.10.20.20.20.20.20.20.20.20.10.10.10.00.10.10.1

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value243964799353-1185.0-482.01000968545608544785261333696417674491728462531
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue8.024.922.79.8-33.1-10.722.325.61.416.724.715.515.241.521.914.819.915.923.217.818.2

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense dei:LegalEntity, us-gaap:ConsolidationItems

us-gaap:NonoperatingIncomeExpense

d:VirginiaElectricAndPowerCompany, us-gaap:OperatingSegments


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-03-31
Value-15.0-58.01678-161.0-20.0-634.0-46.0-283.0-324.04.0-41.0-189.0-25.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.5-1.547.7-4.5-0.6-14.1-1.2-7.1-8.40.1-1.3-5.5-0.9
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.0

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

d:VirginiaElectricAndPowerCompany, us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-15.0-58.01678-161.046-700.039-21.0-308.0-344.0-83.08.0-40.0-197.0810.0-9.02.0-155.01.07.0-26.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0-230.0110.40.045.7108.8106.20.0200.097.6104.20.00.00.00.00.00.00.0104.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.5-1.547.7-4.51.3-15.60.9-0.6-7.8-8.9-2.50.2-1.3-5.72.50.0-0.30.1-5.00.00.3-0.9
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-31
Value-227.0-87.025001600-1900.0-1000.00.0-100.0-500.0-1400.0276122-92.0-218.08620.0-158.04.012-38.0
Percentage of NonoperatingIncomeExpense1513.3150.0149.0-993.89500.0157.70.0217.4176.7432.10.03050.0224.4115.30.00.00.00.00.0152.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-7.5-2.271.044.4-53.0-22.20.0-2.6-12.6-36.38.23.5-3.0-6.326.90.0-5.10.10.5-1.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value287717100-300.0-1900.0-1200.0-500.00.0-500.0-1600.086196-111.0-238.0406-7.0-31.021-421.0-26.011-48.0
Percentage of NonoperatingIncomeExpense-1913.3-122.4423.1186.39500.0189.30.0-0.0176.7493.80.02400.0270.7125.90.00.00.00.00.00.00.0192.0
Percentage of RegulatedAndUnregulatedOperatingRevenue9.41.8201.6-8.3-53.0-26.7-11.20.0-12.6-41.525.62.8-3.6-6.912.6-0.2-1.10.6-13.6-0.80.4-1.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3638788562754063112211314461-482.083411507428751004120080111258191145781882638112377310026389213947688041034548930-892.051861791534083372596373711193110734
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue11.922.724.30.715.114.027.334.711.6-12.524.833.324.025.231.337.728.533.226.536.630.130.225.037.828.129.421.730.214.021.225.230.118.426.4-28.215.520.226.210.921.921.723.70.028.393.317.6

us-gaap:OperatingIncomeLoss dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value571548497687635-133.065982023812241875653336461984761365336991455351437474148152531259420561340867946353041774636146855568471511235673479
Percentage of OperatingIncomeLoss157.362.458.12544.4117.6-21.154.062.451.6-25.350.165.771.841.661.770.676.558.045.179.870.858.358.666.062.252.448.964.552.079.850.765.784.557.0-46.7144.058.551.116.268.265.053.131.960.115.4
Percentage of RegulatedAndUnregulatedOperatingRevenue18.814.214.119.017.7-3.014.721.76.03.212.421.917.310.519.326.621.819.312.029.221.317.614.624.917.515.410.619.57.316.912.819.815.515.013.222.411.813.41.814.914.112.60.017.014.4
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany32.829.927.930.635.2-6.934.036.212.36.223.133.929.120.833.939.335.135.721.641.331.127.223.236.026.524.617.228.911.930.923.433.027.129.825.635.820.626.73.526.126.829.10.031.928.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value3146299-36.038-225.0-16.0-94.048-31.0-180.01813132-30.0545364-328.022-30.01127-115.0237.01.0-100.0-18.025212-53.033757-370.0-52.0-44.0199-111.0-170.0-2.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue1.01.28.5-1.01.1-5.0-0.4-2.51.2-0.8-5.40.50.43.8-0.91.71.91.9-10.60.7-1.20.41.1-3.90.80.20.0-3.3-0.60.76.7-1.511.31.6-11.7-1.6-1.45.7-3.5-4.5-0.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-10.029135.05.0-46.012-15.0-9.0-5.0-6.03.00.05.07.04.01.04.0142.0-4.0-6.06.0-18.05.0-3.00.0-1.04.0-1.09.04.01.09.0-1.03.0-4.08.04.0-11.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-32.363.04.3-13.913.220.4-75.016.0-18.816.13.316.70.03.8-23.37.41.96.2-4.39.113.3-54.522.215.721.7-42.90.01.0-22.2-4.04.2-7.50.315.80.3-5.89.14.0-3.66.5-0.0
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.30.70.40.10.1-1.00.3-0.4-0.2-0.1-0.20.10.00.10.20.10.00.10.50.1-0.2-0.20.2-0.60.2-0.10.0-0.00.1-0.00.30.10.00.3-0.00.1-0.10.20.1-0.30.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany-0.61.60.70.20.3-2.40.6-0.7-0.5-0.3-0.30.10.00.30.40.20.10.20.80.1-0.2-0.30.4-0.90.3-0.10.0-0.00.2-0.10.50.20.10.5-0.10.1-0.20.50.3-0.50.0

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

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-12.033126.01.0-45.012-16.0-10.0-7.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-38.771.74.0-16.72.620.0-75.017.0-20.822.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.40.90.30.20.0-1.00.3-0.4-0.3-0.2
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value2.0-4.01.0-1.04.0-1.00.01.01.02.00.0-2.07.06.03.0
Percentage of OtherComprehensiveIncomeLossNetOfTax6.5-8.70.32.810.50.4-0.0-1.12.1-6.50.0-15.4-23.311.15.7
Percentage of RegulatedAndUnregulatedOperatingRevenue0.1-0.10.0-0.00.1-0.00.00.00.00.10.0-0.10.20.20.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-10.029135.05.0-46.012-15.0-9.0-5.0-6.03.00.05.07.04.01.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-32.363.04.3-13.913.220.4-75.016.0-18.816.13.316.70.03.8-23.37.41.9
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.30.70.40.10.1-1.00.3-0.4-0.2-0.1-0.20.10.00.10.20.10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

d:OtherComprehensiveIncomeLossFromEquityMethodInvestees


Other
Period End2020-12-312020-09-302020-06-302019-09-302019-06-30
Value0.01.00.0-1.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax0.0-2.80.01.10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.00.0-0.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:OtherComprehensiveIncomeLossFromEquityMethodInvestees0.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2624264-238.01719-115.0161358.0-57.0141113-325.0248.08.0-48.05.01513-297.08.0134.03112.023820
Percentage of OtherComprehensiveIncomeLossNetOfTax83.952.288.3661.144.7-8.4718.8-17.0281.2-25.8190.025.920.820.399.1109.1-26.772.7-177.8-4.365.2185.7-29700.0-8.0-72.216.0146.7-3.870.635.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.90.67.5-6.60.50.4-2.60.43.40.2-1.80.40.40.4-10.50.80.30.3-1.90.20.50.4-10.10.30.50.19.80.18.00.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-4.052271987.0-244.095-113.0-99.0-55.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-12.9113.09.0-550.018.4108.4-593.8120.2-206.2177.4
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.11.30.85.50.2-5.42.1-3.0-2.5-1.4
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value9.0-30.08.03.0143.04.01216734431301618181346-61.0-23.0-6.033-19.042187528-6.051
Percentage of OtherComprehensiveIncomeLossNetOfTax29.0-65.22.7-8.336.8-18.8-4.325.0-51.6-243.381.558.546.9-4.981.8-60.0118.2170.453.0-100.0-85.73300.019.0-233.372.035.4-52.8-1.889.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.3-0.80.20.10.40.10.10.30.42.31.41.10.90.50.60.70.41.8-2.1-0.8-0.21.1-0.61.50.52.40.8-0.21.4
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value3146299-36.038-225.0-16.0-94.048-31.0-180.01813131-31.0545364-328.022-30.01127-115.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.2103.3100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue1.01.28.5-1.01.1-5.0-0.4-2.51.2-0.8-5.40.50.43.8-1.01.71.91.9-10.60.7-1.20.41.1-3.9
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3146299-36.038-225.0-16.0-94.048-31.0-180.01813131-31.0545364-328.022-30.011
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.2103.3100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue1.01.28.5-1.01.1-5.0-0.4-2.51.2-0.8-5.40.50.43.8-1.01.71.91.9-10.60.7-1.20.4
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value312367406281502-399.033317392388363373185100-84.073601166163725469115660846957404386498749564474671639576063-25.071
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 RegulatedAndUnregulatedOperatingRevenue10.39.511.57.814.0-8.97.44.62.310.110.810.86.02.9-2.62.32.13.42.02.02.81.82.70.42.01.82.92.32.01.11.42.51.62.51.51.71.42.12.10.41.21.40.01.6-0.81.7

us-gaap:OtherNonoperatingIncomeExpense dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4032463452-52.030151637-27.025213.0191313319.013181619132115332421151519272531251723242510.029332528
Percentage of OtherNonoperatingIncomeExpense12.88.711.312.110.413.09.08.717.49.5-7.46.711.43.0-22.617.821.726.714.820.625.029.627.5118.237.525.039.334.836.837.534.922.155.128.763.344.638.631.135.8156.225.650.955.039.7-112.0
Percentage of RegulatedAndUnregulatedOperatingRevenue1.30.81.30.91.5-1.20.70.40.41.0-0.80.70.70.10.60.40.50.90.30.40.70.50.70.40.80.41.10.80.70.40.50.60.90.71.00.80.60.70.80.70.30.70.00.60.8
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany2.31.72.61.52.9-2.71.50.70.81.9-1.51.11.10.21.00.60.71.70.50.61.00.81.20.61.20.71.81.21.20.80.90.91.61.41.91.21.01.31.51.10.61.70.01.21.6

us-gaap:OtherNonoperatingIncomeExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-40.0-30.0-37.0-36.0-31.0-30.0-28.0-31.0-27.0-27.0-30.0-29.0-31.0-26.0-26.0-25.0
Percentage of OtherNonoperatingIncomeExpense-12.8-8.2-9.1-12.8-6.27.5-8.4-17.9-29.3-7.0-8.0-15.7-31.0-35.6-43.3-21.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-1.3-0.8-1.1-1.0-0.9-0.7-0.6-0.8-0.7-0.7-0.9-0.9-0.9-0.8-0.9-0.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value5.05.0685.05.06.06.05.08.05.05.05.05.05.05.04.0
Percentage of OtherNonoperatingIncomeExpense1.61.416.71.81.0-1.51.82.98.71.31.32.75.06.88.33.4
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.11.90.10.10.10.10.10.20.10.10.20.10.20.20.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value1616171616169.07.00.0
Percentage of PreferredStockDividendsIncomeStatementImpact100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.50.40.50.40.40.40.20.20.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2951008690131-1132.0-239.0101098558-677.06628834785261333696417674491728462531366599418540249531161385435575208502-652.02152655012073963404833035791765178
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 RegulatedAndUnregulatedOperatingRevenue9.726.019.63.6-31.6-5.322.626.01.5-17.519.725.615.515.241.521.914.819.915.923.217.818.214.320.215.215.88.517.45.710.613.716.87.014.2-20.66.58.714.36.610.410.211.90.014.753.04.3

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10.08.0-225.037311.010.04.03.021292923
Percentage of ProfitLoss3.41.2-171.8-3.3-13.00.11.06.9-0.43.23.36.14.4
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.2-6.21.00.70.00.30.10.10.60.80.90.7
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2851008682356-1169.0-270.0100997554-680.0641854449503
Percentage of ProfitLoss96.6100.098.8271.8103.3113.099.999.093.1100.496.896.793.995.6
Percentage of RegulatedAndUnregulatedOperatingRevenue9.426.019.49.9-32.6-6.022.525.81.4-17.619.124.714.514.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2851008682356-1169.0-270.0100997554-680.0641854449503
Percentage of ProfitLoss96.6100.098.8271.8103.3113.099.999.093.1100.496.896.793.995.6
Percentage of RegulatedAndUnregulatedOperatingRevenue9.426.019.49.9-32.6-6.022.525.81.4-17.619.124.714.514.5
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Regulated And Unregulated Operating Revenue

us-gaap:RegulatedAndUnregulatedOperatingRevenue

us-gaap:RegulatedAndUnregulatedOperatingRevenue


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3038387035213607358544964475378239703858336134513088346632103179281333843086313225982921255629712747340929433050281336303185343229803523316733323053349231293803334140573746395033334168
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Regulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value174118301780224818051930194122641938196518102232182917481824215417471831171122111776189016142058181321371814205317291983174520591710178116302086175617541555217717571757165821111711
Percentage of RegulatedAndUnregulatedOperatingRevenue57.347.350.662.350.342.943.459.948.850.953.964.759.250.456.867.862.154.155.470.668.464.763.169.366.062.761.667.361.554.654.860.057.450.651.562.657.550.249.757.252.643.344.353.451.3
Percentage of RegulatedAndUnregulatedOperatingRevenue57.347.350.662.350.342.943.459.948.850.953.964.759.250.456.867.862.154.155.470.668.464.763.169.366.062.761.667.361.554.654.860.057.450.651.562.657.550.249.757.252.643.344.353.451.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


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
Value3084384035213536347043234475362337463631336134513088346632103179281333843086313225982921255629712747340929433050281336303185343229803523316733323053349231293803334140573746395033334168
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue101.599.2100.098.096.896.2100.095.894.494.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value172318071780223117651909194122501914195118102210182917481824215417471831171122111776189016142058181321371814205317291983174520591710178116302086175617541555217717571757165821111711
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.947.150.663.150.944.243.462.151.153.753.964.059.250.456.867.862.154.155.470.668.464.763.169.366.062.761.667.361.554.654.860.057.450.651.562.657.550.249.757.252.643.344.353.451.3
Percentage of RegulatedAndUnregulatedOperatingRevenue56.746.750.661.949.242.543.459.548.250.653.964.059.250.456.867.862.154.155.470.668.464.763.169.366.062.761.667.361.554.654.860.057.450.651.562.657.550.249.757.252.643.344.353.451.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany99.098.7100.099.297.898.9100.099.498.899.3100.099.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

d:DominionEnergyTransmissionInc, d:AtlanticCoastPipelineLLC


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.07.0172022242631
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.50.50.50.70.70.9
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.20.50.40.50.60.70.8
Percentage of RegulatedAndUnregulatedOperatingRevenue d:DominionEnergyTransmissionInc d:AtlanticCoastPipelineLLC0.00.00.00.00.00.00.00.0

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

d:VirginiaElectricAndPowerCompany, d:OtherNonregulatedRevenues


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
Value27213.03320131721196.01410.01813
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.50.10.90.60.30.40.60.50.20.40.30.60.4
Percentage of RegulatedAndUnregulatedOperatingRevenue0.90.50.10.90.60.30.40.60.50.20.40.30.60.4
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany d:OtherNonregulatedRevenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, d:OtherRegulatedRevenues


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
Value7157826194626636623337303332
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.52.31.72.71.41.51.01.70.91.10.91.10.9
Percentage of RegulatedAndUnregulatedOperatingRevenue2.31.52.31.72.61.41.51.01.60.91.10.91.10.9
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany d:OtherRegulatedRevenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, d:RenewableEnergyInvestmentTaxCredits


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.04.0-13.0165.03.03.0112.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.1-0.40.50.10.10.10.30.10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.1-0.40.40.10.10.10.30.10.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany d:RenewableEnergyInvestmentTaxCredits0.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity, us-gaap:ProductOrService, us-gaap:ContractWithCustomerSalesChannel

d:VirginiaElectricAndPowerCompany, us-gaap:ElectricityUsRegulated, d:Commercial


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
Value564547537645546614663732681636606737636524
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.314.215.318.215.714.214.820.218.217.518.021.420.615.1
Percentage of RegulatedAndUnregulatedOperatingRevenue18.614.115.317.915.213.714.819.417.216.518.021.420.615.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ElectricityUsRegulated d:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:ElectricityUsRegulated, d:GovernmentAndOtherRetail


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
Value208176201223177203198224197204207224210213
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.74.65.76.35.14.74.46.25.35.66.26.56.86.1
Percentage of RegulatedAndUnregulatedOperatingRevenue6.84.55.76.24.94.54.45.95.05.36.26.56.86.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ElectricityUsRegulated d:GovernmentAndOtherRetail0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:ElectricityUsRegulated, d:Industrial


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
Value839196988997104121118112119143121107
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.72.42.72.82.62.22.33.33.23.13.54.13.93.1
Percentage of RegulatedAndUnregulatedOperatingRevenue2.72.42.72.72.52.22.33.23.02.93.54.13.93.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ElectricityUsRegulated d:Industrial0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:ElectricityUsRegulated, d:Residential


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
Value748889817114681889684110858089237721036788817
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.323.223.232.423.620.718.829.921.625.423.030.025.523.6
Percentage of RegulatedAndUnregulatedOperatingRevenue24.623.023.231.822.819.918.828.720.423.923.030.025.523.6
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ElectricityUsRegulated d:Residential0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:ElectricityUsRegulated, d:Wholesale


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
Value2226202521243131293742302342
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.70.60.70.60.60.70.90.81.01.20.90.71.2
Percentage of RegulatedAndUnregulatedOperatingRevenue0.70.70.60.70.60.50.70.80.71.01.20.90.71.2
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:ElectricityUsRegulated d:Wholesale0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

d:NonregulatedElectricitySales


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
Value217249176218177232238197175316272322282418
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.06.55.06.25.15.45.35.44.78.78.19.39.112.1
Percentage of RegulatedAndUnregulatedOperatingRevenue7.16.45.06.04.95.25.35.24.48.28.19.39.112.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:NonregulatedElectricitySales0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:NonregulatedGasOperations


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
Value155250123383126517124771429.088
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.51.41.40.31.01.92.81.41.96.82.11.20.32.5
Percentage of RegulatedAndUnregulatedOperatingRevenue0.51.31.40.30.91.82.81.31.86.42.11.20.32.5
Percentage of RegulatedAndUnregulatedOperatingRevenue d:NonregulatedGasOperations0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:OtherNonregulatedRevenues


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
Value574826617988333910195-288.0133141136
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.20.71.72.32.00.71.12.72.6-8.63.94.63.9
Percentage of RegulatedAndUnregulatedOperatingRevenue1.91.20.71.72.22.00.71.02.52.5-8.63.94.63.9
Percentage of RegulatedAndUnregulatedOperatingRevenue d:OtherNonregulatedRevenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:OtherRegulatedRevenues


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
Value7466916198756854825846384450
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.41.72.61.72.81.71.51.52.21.61.41.11.41.4
Percentage of RegulatedAndUnregulatedOperatingRevenue2.41.72.61.72.71.71.51.42.11.51.41.11.41.4
Percentage of RegulatedAndUnregulatedOperatingRevenue d:OtherRegulatedRevenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:RegulatedGasTransportationAndStorage


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value219271223165182232195168
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.17.16.34.75.25.44.44.6
Percentage of RegulatedAndUnregulatedOperatingRevenue7.27.06.34.65.15.24.44.4
Percentage of RegulatedAndUnregulatedOperatingRevenue d:RegulatedGasTransportationAndStorage0.00.00.00.00.00.00.00.0

d:RenewableEnergyInvestmentTaxCredits


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.06.0-12.0217.04.05.0124.03.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.2-0.30.60.20.10.10.30.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.20.2-0.30.60.20.10.10.30.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue d:RenewableEnergyInvestmentTaxCredits0.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:ContractWithCustomerSalesChannel

d:RegulatedGasSales, d:Commercial


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
Value7920615350631911465273191691534103
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.65.44.31.41.84.43.31.41.95.32.10.41.13.0
Percentage of RegulatedAndUnregulatedOperatingRevenue2.65.34.31.41.84.23.31.41.85.02.10.41.13.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:RegulatedGasSales d:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:RegulatedGasSales, d:Other


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
Value23342718162825232538-3.03.01.010.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.90.80.50.50.60.60.60.71.0-0.10.10.00.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.80.90.80.50.40.60.60.60.61.0-0.10.10.00.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:RegulatedGasSales d:Other0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:RegulatedGasSales, d:Residential


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
Value18863043012318254843812117760226573116364
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.116.412.23.55.212.79.83.34.716.67.92.13.810.5
Percentage of RegulatedAndUnregulatedOperatingRevenue6.216.312.23.45.112.29.83.24.515.67.92.13.810.5
Percentage of RegulatedAndUnregulatedOperatingRevenue d:RegulatedGasSales d:Residential0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricityUsRegulated, d:Commercial


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
Value761719711865728798872962889496606737636524
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.718.720.224.521.018.519.526.623.713.718.021.420.615.1
Percentage of RegulatedAndUnregulatedOperatingRevenue25.018.620.224.020.317.719.525.422.412.918.021.420.615.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ElectricityUsRegulated d:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricityUsRegulated, d:GovernmentAndOtherRetail


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
Value223189217239193219215244214200207224210213
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.24.96.26.85.65.14.86.75.75.56.26.56.86.1
Percentage of RegulatedAndUnregulatedOperatingRevenue7.34.96.26.65.44.94.86.55.45.26.26.56.86.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ElectricityUsRegulated d:GovernmentAndOtherRetail0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricityUsRegulated, d:Industrial


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
Value17517818219017618220922721730119143121107
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.74.65.25.45.14.24.76.35.80.83.54.13.93.1
Percentage of RegulatedAndUnregulatedOperatingRevenue5.84.65.25.34.94.04.76.05.50.83.54.13.93.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ElectricityUsRegulated d:Industrial0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricityUsRegulated, d:Residential


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
Value1017115510871497109111581145144010946467721036788817
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.030.130.942.331.426.825.639.729.217.823.030.025.523.6
Percentage of RegulatedAndUnregulatedOperatingRevenue33.529.830.941.530.425.825.638.127.616.723.030.025.523.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ElectricityUsRegulated d:Residential0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricityUsRegulated, d:Wholesale


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
Value3643293729334245414842302342
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.10.81.00.80.80.91.21.11.31.20.90.71.2
Percentage of RegulatedAndUnregulatedOperatingRevenue1.21.10.81.00.80.70.91.21.01.21.20.90.71.2
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:ElectricityUsRegulated d:Wholesale0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:TimingOfTransferOfGoodOrService

us-gaap:NaturalGasMidstream, us-gaap:TransferredAtPointInTime


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value8.07.06.05.0197.08.01242
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.20.20.10.50.20.20.31.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.30.20.20.10.50.20.20.31.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:NaturalGasMidstream us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3038387035213607358544964475426939703858336134513088346632103179281333843086313225982921255629712747340929433050281336303185343229803523316733323053349231293803334140573746395033334168
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0112.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Revenuesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value174118301780224818051930194122641938196518102232182917481824215417471831171122111776189016142058181321371814205317291983174520591710178116302086175617541555217717571757165821111711
Percentage of Revenues57.347.350.662.350.342.943.453.048.850.953.964.759.250.456.867.862.154.155.470.668.464.763.169.366.062.761.667.361.554.654.860.057.450.651.562.657.550.249.757.252.643.344.353.451.3
Percentage of RegulatedAndUnregulatedOperatingRevenue57.347.350.662.350.342.943.459.948.850.953.964.759.250.456.867.862.154.155.470.668.464.763.169.366.062.761.667.361.554.654.860.057.450.651.562.657.550.249.757.252.643.344.353.451.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity, us-gaap:StatementBusinessSegments

d:VirginiaElectricAndPowerCompany, d:DominionEnergyVirginia


Revenuesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1741198117802248180519301941226419381994
Percentage of Revenues57.351.250.662.350.342.943.453.048.851.7
Percentage of RegulatedAndUnregulatedOperatingRevenue57.351.250.662.350.342.943.459.948.851.7
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany d:DominionEnergyVirginia0.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:CorporateAndOther


Revenuesdei:
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.0-151.00.00.0580.00.0-29.00.0-15.00.00.00.00.0-6.00.00.00.00.00.0
Percentage of Revenues0.0-3.90.00.01.30.00.0-0.80.0-0.40.00.00.00.0-0.20.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.0-3.90.00.01.30.00.0-0.80.0-0.40.00.00.00.0-0.20.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:VirginiaElectricAndPowerCompany us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems

d:EliminationAndReconcilingItems


Revenuesus-gaap:
Period End2020-09-302019-09-30
Value-252.0-239.0
Percentage of Revenues-7.0-5.6
Percentage of RegulatedAndUnregulatedOperatingRevenue-7.0-6.3
Percentage of RegulatedAndUnregulatedOperatingRevenue d:EliminationAndReconcilingItems0.00.0

d:EliminationsAndReconcilingItems


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value-250.0-251.0-248.0-263.0
Percentage of Revenues-8.2-6.5-6.9-5.8
Percentage of RegulatedAndUnregulatedOperatingRevenue-8.2-6.5-6.9-5.8
Percentage of RegulatedAndUnregulatedOperatingRevenue d:EliminationsAndReconcilingItems0.00.00.00.0

srt:ConsolidationEliminations


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-239.0-234.0-264.0-243.0-316.0-341.0-744.0-203.0-303.0-220.0-181.0-177.0-173.0-161.0-160.0-155.0-152.0
Percentage of Revenues-7.9-6.0-7.5-6.7-8.8-7.6-16.6-4.8-7.6-5.7-5.4-5.1-5.6-4.6-5.0-4.9-5.4
Percentage of RegulatedAndUnregulatedOperatingRevenue-7.9-6.0-7.5-6.7-8.8-7.6-16.6-5.4-7.6-5.7-5.4-5.1-5.6-4.6-5.0-4.9-5.4
Percentage of RegulatedAndUnregulatedOperatingRevenue srt:ConsolidationEliminations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.01.0-3.0-5.0-315.0-341.0-744.0-203.0-303.0-220.0-184.0-175.0-187.0-189.0-356.0-361.0-333.0-426.0-339.0-357.0-265.0-378.0-88.0-339.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.00.0-0.1-0.1-8.8-7.6-16.6-4.8-7.6-5.7-5.5-5.1-6.1-5.5-11.1-11.4-11.8-12.6-11.0-11.4-10.2-12.9-3.4-11.40.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.00.0-0.1-0.1-8.8-7.6-16.6-5.4-7.6-5.7-5.5-5.1-6.1-5.5-11.1-11.4-11.8-12.6-11.0-11.4-10.2-12.9-3.4-11.40.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MaterialReconcilingItems


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1117129.0-1.0151712-33.03.0-2.0142819620618127319621012818457177128333-2.0201
Percentage of Revenues0.40.40.30.2-0.00.30.40.3-0.90.1-0.10.50.86.16.56.48.16.46.74.96.32.26.04.79.8-0.16.6
Percentage of RegulatedAndUnregulatedOperatingRevenue0.40.40.30.2-0.00.30.40.3-0.90.1-0.10.50.86.16.56.48.16.46.74.96.32.26.04.79.8-0.16.6
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value30373869352436123585449623114269397038583361345130883466321031792813338430863132
Percentage of Revenues100.0100.0100.1100.1100.0100.051.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.1100.1100.0100.051.6112.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:IntersegmentElimination, d:ContractedAssets


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value17211513158.01111
Percentage of Revenues0.60.50.40.40.40.20.20.3
Percentage of RegulatedAndUnregulatedOperatingRevenue0.60.50.40.40.40.20.20.3
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination d:ContractedAssets0.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, d:DominionEnergySouthCarolina


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value2.02.02.01.01.01.01.01.02.0
Percentage of Revenues0.10.10.10.00.00.00.00.00.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.10.10.00.00.00.00.00.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination d:DominionEnergySouthCarolina0.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, d:DominionEnergyVirginia


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-5.0-2.0-5.0-3.0-4.0-3.0-3.0-6.0-2.0-4.0
Percentage of Revenues-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination d:DominionEnergyVirginia0.00.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, d:GasDistributionSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value2.01.01.03.02.04.05.06.03.0
Percentage of Revenues0.10.00.00.10.10.10.10.10.1
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.00.00.10.10.10.10.20.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination d:GasDistributionSegment0.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value235230260233262279588164263184169160170175159150149152140144133192140128144142150140139147145158164142149164
Percentage of Revenues7.75.97.46.57.36.213.13.86.64.85.04.65.55.05.04.75.34.54.54.65.16.65.54.35.24.25.14.64.94.04.64.65.54.04.74.9
Percentage of RegulatedAndUnregulatedOperatingRevenue7.75.97.46.57.36.213.14.36.64.85.04.65.55.05.04.75.34.54.54.65.16.65.54.35.24.25.14.64.94.04.64.65.54.04.74.9
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:IntersegmentElimination us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, d:ContractedAssets


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value257268210288234288267260
Percentage of Revenues8.56.96.08.06.56.46.06.1
Percentage of RegulatedAndUnregulatedOperatingRevenue8.56.96.08.06.56.46.06.9
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:ContractedAssets0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, d:DominionEnergySouthCarolina


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value679752758635714792703689
Percentage of Revenues22.419.421.017.715.918.617.717.9
Percentage of RegulatedAndUnregulatedOperatingRevenue22.419.421.017.715.920.917.717.9
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:DominionEnergySouthCarolina0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, d:DominionEnergyVirginia


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1752198717892257181419351938227519431997
Percentage of Revenues57.751.350.862.650.643.043.353.348.951.8
Percentage of RegulatedAndUnregulatedOperatingRevenue57.751.350.862.650.643.043.360.248.951.8
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:DominionEnergyVirginia0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, d:GasDistributionSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value453975748311402886732321400
Percentage of Revenues14.925.221.28.611.219.716.47.510.1
Percentage of RegulatedAndUnregulatedOperatingRevenue14.925.221.28.611.219.716.48.510.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments d:GasDistributionSegment0.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-115.0-130.088-11.0230307533146254-856.0171160167-32.01631531553.05942.03.03.0-18.00.04.0-13.0-22.04.0
Percentage of Revenues-3.8-3.42.5-0.36.46.811.93.46.4-22.25.14.65.4-0.95.14.85.50.119.20.10.10.1-0.70.00.1-0.4-0.70.1
Percentage of RegulatedAndUnregulatedOperatingRevenue-3.8-3.42.5-0.36.46.811.93.96.4-22.25.14.65.4-0.95.14.85.50.119.20.10.10.1-0.70.00.1-0.4-0.70.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:CommodityContract, us-gaap:FairValueHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value3.08.09.06.0193438
Percentage of Revenues0.10.20.30.10.40.81.0
Percentage of RegulatedAndUnregulatedOperatingRevenue0.10.20.30.10.40.91.0
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CommodityContract us-gaap:FairValueHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

d:ContractedAssets


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value274289225301249296278271
Percentage of Revenues9.07.56.48.36.96.66.26.3
Percentage of RegulatedAndUnregulatedOperatingRevenue9.07.56.48.36.96.66.27.2
Percentage of RegulatedAndUnregulatedOperatingRevenue d:ContractedAssets0.00.00.00.00.00.00.00.0

d:DominionEnergySouthCarolina


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value681754679759634713767793701689
Percentage of Revenues22.419.519.321.017.715.917.118.617.717.9
Percentage of RegulatedAndUnregulatedOperatingRevenue22.419.519.321.017.715.917.121.017.717.9
Percentage of RegulatedAndUnregulatedOperatingRevenue d:DominionEnergySouthCarolina0.00.00.00.00.00.00.00.00.00.0

d:DominionEnergyVirginia


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1747198517842254181819381961226919452001
Percentage of Revenues57.551.350.762.550.743.143.853.249.051.9
Percentage of RegulatedAndUnregulatedOperatingRevenue57.551.350.762.550.743.143.860.049.051.9
Percentage of RegulatedAndUnregulatedOperatingRevenue d:DominionEnergyVirginia0.00.00.00.00.00.00.00.00.00.0

d:GasDistributionSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value455976749314400890737327397
Percentage of Revenues15.025.221.38.711.219.816.57.710.0
Percentage of RegulatedAndUnregulatedOperatingRevenue15.025.221.38.711.219.816.58.610.0
Percentage of RegulatedAndUnregulatedOperatingRevenue d:GasDistributionSegment0.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value120100348222-32.028-55.0-18.0-9.0-1040.02.00.0-3.0-207.04.03.06.0155-484.01461361951221281481291281441431459414818118919520133395532437
Percentage of Revenues3.92.69.96.2-0.90.6-1.2-0.4-0.2-27.00.10.0-0.1-6.00.10.10.24.6-15.74.75.26.74.84.35.43.84.34.75.14.03.04.36.15.46.26.01.11.117.70.61.1
Percentage of RegulatedAndUnregulatedOperatingRevenue3.92.69.96.2-0.90.6-1.2-0.5-0.2-27.00.10.0-0.1-6.00.10.10.24.6-15.74.75.26.74.84.35.43.84.34.75.14.03.04.36.15.46.26.01.11.117.70.61.1
Percentage of RegulatedAndUnregulatedOperatingRevenue us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value97963967039590510453510372810412610382310235910082210005477914790827807577354765857539173902728527161069599613695950558797565995594255156543275227951499505865009648488484264711646838468864641646093456144403043411427774281742554
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value451564378443654427374204041048414284076539998392743688036535363303562135139345813412433741333083274732393317823162230559302932963629509284832820827619269612631025789251182481124219238922361623544232952316022262
Percentage of Assets46.145.345.540.940.539.439.939.839.739.347.346.246.546.045.945.946.246.346.547.152.853.453.854.054.253.754.354.554.854.653.854.353.353.353.051.751.551.251.652.953.452.0
Percentage of Assets46.145.345.540.940.539.439.939.839.739.347.346.246.546.045.945.946.246.346.547.152.853.453.854.054.253.754.354.554.854.653.854.353.353.353.051.751.551.251.652.953.452.0
Percentage of Assets d:VirginiaElectricAndPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity, us-gaap:StatementBusinessSegments

d:VirginiaElectricAndPowerCompany, d:DominionEnergyVirginia


Assetsdei:
Period End2020-12-312019-12-312018-12-31
Value437004140037000
Percentage of Assets45.639.947.5
Percentage of Assets45.639.947.5
Percentage of Assets d:VirginiaElectricAndPowerCompany d:DominionEnergyVirginia100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value-4900.0-9700.0-12900.0-9100.0-7300.0-5800.0-4300.0
Percentage of Assets-5.1-9.3-16.6-11.9-10.2-9.9-7.9
Percentage of Assets-5.1-9.3-16.6-11.9-10.2-9.9-7.9
Percentage of Assets us-gaap:MaterialReconcilingItems100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, d:ContractedAssets


Assetsus-gaap:
Period End2020-12-312019-12-31
Value1310010200
Percentage of Assets13.79.8
Percentage of Assets13.79.8
Percentage of Assets us-gaap:OperatingSegments d:ContractedAssets100.0100.0

us-gaap:OperatingSegments, d:DominionEnergySouthCarolina


Assetsus-gaap:
Period End2020-12-312019-12-31
Value1600015800
Percentage of Assets16.715.2
Percentage of Assets16.715.2
Percentage of Assets us-gaap:OperatingSegments d:DominionEnergySouthCarolina100.0100.0

us-gaap:OperatingSegments, d:DominionEnergyVirginia


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value460004370039100
Percentage of Assets48.042.150.2
Percentage of Assets48.042.150.2
Percentage of Assets us-gaap:OperatingSegments d:DominionEnergyVirginia100.0100.0100.0

us-gaap:OperatingSegments, d:GasDistributionSegment


Assetsus-gaap:
Period End2020-12-312019-12-31
Value1710016000
Percentage of Assets17.815.4
Percentage of Assets17.815.4
Percentage of Assets us-gaap:OperatingSegments d:GasDistributionSegment100.0100.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value8600690011200120001020090008700
Percentage of Assets9.06.614.415.714.215.316.0
Percentage of Assets9.06.614.415.714.215.316.0
Percentage of Assets us-gaap:OperatingSegments us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7107969665694447646972844713746979072402724417245555866586565803957312572155688956697556715477053407459174549045195433234308742740423704057239798387533819736989371093593135956347513420633867338543214131474305773056331112
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets72.672.072.473.270.268.567.270.771.972.471.774.274.374.174.775.576.776.476.576.774.876.476.976.577.077.578.077.677.376.676.276.376.676.376.874.173.773.574.273.072.571.571.473.1

us-gaap:Liabilities dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Liabilitiesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value300922897329097284222809627492274392721527034263302383323618238332335922915227712243221959214432106921219208842098120035199911946319454183181815717518169061634316013154841532114765147411451014537141841413113498
Percentage of Liabilities42.341.641.937.238.638.539.337.637.336.342.740.341.140.840.140.039.639.439.239.446.245.946.446.246.445.545.945.145.645.244.344.243.243.142.642.543.142.842.944.144.944.2
Percentage of Assets30.730.030.327.227.126.426.426.626.826.330.629.930.530.229.930.230.430.129.930.334.635.135.735.435.735.335.835.035.334.633.733.733.132.932.731.531.831.531.932.232.631.5
Percentage of Assets d:VirginiaElectricAndPowerCompany66.666.266.766.566.867.066.266.867.667.064.664.665.665.665.265.865.765.164.464.365.565.766.365.666.065.765.964.364.463.462.762.162.161.661.861.061.761.461.760.961.060.6

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value97963967039590510453510372810412610382310235910082210005477914790827807577354765857539173902728527161069599613695950558797565995594255156543275227951499505865009648488484264711646838468864641646093456144403043411427774281742554
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value451564378443654427374204041048414284076539998392743688036535363303562135139345813412433741333083274732393317823162230559302932963629509284832820827619269612631025789251182481124219238922361623544232952316022262
Percentage of LiabilitiesAndStockholdersEquity46.145.345.540.940.539.439.939.839.739.347.346.246.546.045.945.946.246.346.547.152.853.453.854.054.253.754.354.554.854.653.854.353.353.353.051.751.551.251.652.953.452.0
Percentage of Assets46.145.345.540.940.539.439.939.839.739.347.346.246.546.045.945.946.246.346.547.152.853.453.854.054.253.754.354.554.854.653.854.353.353.353.051.751.551.251.652.953.452.0
Percentage of Assets d:VirginiaElectricAndPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value2655026699261172633628871307263199429286276972690920107184701806417689171421628014973149171460514958142521288012664125921242212011115551157311567116991164211242110031086810568118181189611909114461163211680119431199711185100779435
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.127.627.225.227.829.530.828.627.526.925.823.423.122.922.421.620.320.520.421.523.221.621.522.222.221.821.322.122.523.123.223.222.723.122.625.225.625.825.126.426.927.928.026.30.00.0

us-gaap:StockholdersEquity dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value150641481114557143151394413556139891355012964129441304712917124971226212224118101169211782118651167811174108981064110524103021017310055100319917996797989710951993779233919788948849875088548772850771736274
Percentage of StockholdersEquity56.755.555.754.448.344.143.746.346.848.164.969.969.269.371.372.578.179.081.278.178.484.684.083.682.984.787.086.785.785.284.286.486.586.387.477.874.874.376.476.175.170.964.162.3
Percentage of Assets15.415.315.213.713.413.013.513.212.912.916.716.316.015.916.015.715.816.216.616.818.218.318.118.618.418.418.519.219.319.719.620.019.719.919.719.619.219.219.220.120.219.916.90.0
Percentage of Assets d:VirginiaElectricAndPowerCompany33.433.833.333.533.233.033.833.232.433.035.435.434.434.434.834.234.334.935.635.734.534.333.734.434.034.334.135.235.236.136.336.936.937.337.238.037.237.537.238.037.938.20.00.0

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

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-39.0-27.0-60.0-72.0-78.0-79.0-34.0-46.0-30.0-20.0-13.0-5.0-8.0-10.0-12.0
Percentage of StockholdersEquity-0.1-0.1-0.2-0.3-0.3-0.3-0.1-0.2-0.1-0.1-0.1-0.0-0.0-0.1-0.1
Percentage of Assets-0.0-0.0-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value6.04.08.07.08.04.05.05.04.03.01.0-1.0-1.01.074676158544757
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.0-0.0-0.00.00.40.40.40.40.40.40.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0-0.0-0.00.00.10.10.10.10.10.10.1
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312011-12-312010-12-312009-12-312008-12-31
Value-33.0-23.0-52.0-65.0-70.0-75.0-29.0-41.0-26.0-17.0-12.0-6.0-9.0-9.0625551504640501924265.0
Percentage of StockholdersEquity-0.1-0.1-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.10.40.30.30.30.30.30.40.20.20.20.0
Percentage of Assets-0.0-0.0-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.10.10.10.10.10.10.10.00.10.10.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312011-12-312010-12-312009-12-312008-12-31
Value57385738573857385738573857385738573857385738573857385738573857385738573847383738
Percentage of StockholdersEquity21.621.522.021.819.918.717.919.620.721.328.531.131.832.433.539.350.147.842.437.1
Percentage of Assets5.95.96.05.55.55.55.55.65.75.77.47.37.37.47.58.012.613.411.10.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312011-12-312010-12-312009-12-312008-12-31
Value82467983775875297163678071676740613961106208607256555420531149681882163412991421
Percentage of StockholdersEquity31.129.929.728.624.822.122.423.022.222.730.932.931.330.631.034.016.413.611.614.1
Percentage of Assets8.48.38.17.26.96.56.96.66.16.18.07.77.27.06.96.94.13.83.10.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

d:OtherComprehensiveIncomeLossFromEquityMethodInvestees


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value-1.0-1.0-1.0-1.0-2.0-2.0-2.0-3.0-2.0-2.0-2.0-2.0-3.0-3.0
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets d:OtherComprehensiveIncomeLossFromEquityMethodInvestees0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value-1309.0-1335.0-1359.0-1623.0-1385.0-1402.0-1421.0-1306.0-1322.0-1457.0-1465.0-1268.0-1286.0-1303.0-1101.0-1044.0-1058.0-1069.0-1082.0-757.0-781.0-789.0-797.0-749.0-754.0-782.0
Percentage of StockholdersEquity-4.9-5.0-5.2-6.2-4.8-4.6-4.4-4.5-4.8-5.4-7.3-6.9-7.1-7.4-6.4-6.4-7.1-7.2-7.4-5.1-5.5-6.1-6.3-5.9-6.1-6.8
Percentage of Assets-1.3-1.4-1.4-1.6-1.3-1.3-1.4-1.3-1.3-1.5-1.9-1.6-1.6-1.7-1.4-1.4-1.4-1.5-1.5-1.1-1.3-1.3-1.4-1.3-1.3-1.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value-371.0-367.0-419.0-446.0-644.0-651.0-407.0-502.0-389.0-290.0-235.0-248.0-248.0-302.0
Percentage of StockholdersEquity-1.4-1.4-1.6-1.7-2.2-2.1-1.3-1.7-1.4-1.1-1.2-1.4-1.4-1.8
Percentage of Assets-0.4-0.4-0.4-0.4-0.6-0.6-0.4-0.5-0.4-0.3-0.3-0.3-0.3-0.4
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value413262545137373430182.0-5.0-2.03.0747674630599569553535517504458519548
Percentage of StockholdersEquity0.20.10.20.20.20.10.10.10.10.10.0-0.0-0.00.04.44.14.24.03.93.73.84.04.03.64.24.7
Percentage of Assets0.00.00.10.10.00.00.00.00.00.00.0-0.0-0.00.01.00.90.90.80.80.80.90.90.90.80.91.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312010-12-312009-12-312008-12-312007-12-31
Value-1640.0-1671.0-1717.0-2016.0-1980.0-2018.0-1793.0-1777.0-1683.0-1731.0-1700.0-1520.0-1538.0-1551.0-659.0-628.0-682.0-735.0-799.0-471.0-493.0-463.0-474.0-501.0-386.0-416.0-330.0-211.0-269.0-12.0
Percentage of StockholdersEquity-6.2-6.3-6.6-7.7-6.9-6.6-5.6-6.1-6.1-6.4-8.5-8.2-8.5-8.8-3.8-3.9-4.6-4.9-5.5-3.1-3.5-3.6-3.7-4.0-3.1-3.6-2.8-1.9-2.7-0.1
Percentage of Assets-1.7-1.7-1.8-1.9-1.9-1.9-1.7-1.7-1.7-1.7-2.2-1.9-2.0-2.0-0.9-0.8-0.9-1.0-1.1-0.7-0.8-0.8-0.8-0.9-0.7-0.8-0.8-0.50.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value692366626886198296124653660886269572759755161570246104281433439943911428542483799414337114191412344525053561554465561547859405210586351485140465347125019543052674962493254006817
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.16.97.219.05.96.35.96.15.76.06.67.25.95.55.75.35.35.95.95.56.86.27.17.38.09.210.310.410.810.811.910.712.110.911.09.910.210.911.912.011.411.512.616.0

us-gaap:AssetsCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value275022622662259724522447267626452475237325712575266821852224213521472352224821322144220725042327229422642551233823452047216321192104188119812107214721232436237822421981
Percentage of AssetsCurrent39.734.038.713.140.037.444.042.243.239.749.845.257.951.051.353.554.954.952.956.151.759.559.756.451.544.845.442.942.237.436.440.735.936.538.545.345.642.344.945.145.236.7
Percentage of Assets2.82.32.82.52.42.42.62.62.52.43.33.33.42.82.92.82.93.23.13.13.53.74.34.14.14.14.74.54.64.04.34.44.34.04.24.54.64.65.35.45.24.6
Percentage of Assets d:VirginiaElectricAndPowerCompany6.15.26.16.15.86.06.56.56.26.07.07.07.36.16.36.26.37.06.76.56.66.97.97.67.67.68.68.28.37.48.08.18.27.58.08.79.09.010.310.29.78.9

us-gaap:AssetsCurrent us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

d:RetailEnergyMarketingOperations


Assets
Period End2021-06-302021-03-312020-12-31
Value607263
Percentage of AssetsCurrent0.91.10.9
Percentage of Assets0.10.10.1
Percentage of Assets d:RetailEnergyMarketingOperations0.00.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value2404771724136751192166378382422268310190189120227260486261251377218607238271275318218419228316287190352488116213310221280188624464114871
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.50.20.40.71.10.20.40.40.40.30.40.20.20.20.30.40.70.40.40.60.41.00.40.50.50.60.40.80.50.60.60.40.10.50.20.30.30.20.50.20.40.10.00.00.10.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value495635623771172917142922206.01416442891118617818398216152158241651143.028212728292453805.022151927
Percentage of CashAndCashEquivalentsAtCarryingValue20.411.720.315.05.56.010.27.74.53.310.87.110.53.211.77.016.959.54.27.216.235.83.016.430.35.84.79.613.810.55.117.87.48.611.325.916.721.128.411.366.242.68.14.93.639.638.0
Percentage of Assets0.10.10.00.10.00.10.00.00.00.00.00.00.00.00.00.00.10.40.00.00.10.10.00.10.10.00.00.00.10.00.00.10.00.00.10.00.10.10.10.10.10.20.00.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.10.10.10.10.10.20.00.10.00.00.10.10.10.00.00.00.10.90.00.10.20.20.10.10.30.10.10.10.20.10.10.20.10.00.10.10.10.10.10.10.20.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:BalanceSheetLocation

d:CurrentAssetsHeldForSale


Cash
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312018-12-312017-12-31
Value19147.059593111021
Percentage of CashAndCashEquivalentsAtCarryingValue7.92.94.18.74.918.741.017.5
Percentage of Assets0.00.00.00.10.10.00.10.0
Percentage of Assets d:CurrentAssetsHeldForSale0.00.00.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value30456224755874212672694405606273913873543346530132454061632
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.60.30.50.71.20.30.40.60.60.50.50.50.40.10.40.40.70.11.1

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value495635634076243725233832301610.016442891118
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents16.110.014.211.35.46.08.98.44.53.79.78.38.54.815.45.313.653.518.02.8
Percentage of Assets0.10.10.00.10.00.10.00.00.00.00.00.00.00.00.00.00.10.40.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.10.10.10.10.10.20.10.10.10.10.10.10.10.00.00.00.10.90.00.1

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value17281841229520022040217722781972190822361749153915101615166012921242136115231259114011751200128913341589151413391476180516951499151417581621151014941539178016461695183721582050
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.92.41.92.02.12.21.91.92.22.21.91.92.12.21.71.71.92.11.81.92.02.02.32.42.92.82.62.93.63.43.13.13.73.53.23.23.33.93.73.94.35.04.8

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value101992613151337118410631163117795893599910779948859519208407908929378377988229559671018986928926925946906897892849930879789892964887905
Percentage of AccountsReceivableNetCurrent59.050.357.366.858.048.851.159.750.241.857.170.065.854.857.371.267.658.058.674.473.467.968.574.172.564.165.169.362.751.255.860.459.250.752.461.658.851.350.158.652.341.9
Percentage of Assets1.01.01.41.31.11.01.11.11.00.91.31.41.31.11.21.21.11.11.21.31.41.31.41.71.71.81.81.81.81.81.91.91.91.91.82.01.91.72.02.22.02.1
Percentage of Assets d:VirginiaElectricAndPowerCompany2.32.13.03.12.82.62.82.92.42.42.72.92.72.52.72.72.52.32.72.92.62.52.63.13.23.43.33.33.33.33.53.43.53.63.43.83.73.33.84.13.84.1

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1538147615501565173516771742180017241657141814551429136714771527146914531524151613511304134813101260122714101385126110131176121011541039125912571251124913481326119410441163
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.51.61.51.71.61.71.81.71.71.81.81.81.81.92.02.02.02.12.22.22.22.32.32.32.22.62.62.42.02.32.52.42.22.72.72.72.73.03.02.82.42.7

us-gaap:InventoryNet dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value837840862828874868873850847836837810814795850853834842853836860833873842828768853841839717808804793721789757756777797732689597
Percentage of InventoryNet54.456.955.652.950.451.850.147.249.150.559.055.757.058.257.555.956.857.956.055.163.763.964.864.365.762.660.560.766.570.868.766.468.769.462.760.260.462.259.155.257.751.3
Percentage of Assets0.90.90.90.80.80.80.80.80.80.81.11.01.01.01.11.11.11.21.21.21.41.41.51.51.51.41.61.61.61.41.61.71.61.51.71.61.61.71.71.71.61.4
Percentage of Assets d:VirginiaElectricAndPowerCompany1.91.92.01.92.12.12.12.12.12.12.32.22.22.22.42.52.42.52.62.62.72.62.82.82.72.62.93.03.02.63.03.13.12.93.23.13.23.33.43.13.02.7

Inventory Raw Materials And Supplies

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:InventoryRawMaterialsAndSupplies


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value11051193103910491087902923689684641609590
Percentage of InventoryRawMaterialsAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.11.31.41.51.51.71.41.51.41.41.4

us-gaap:InventoryRawMaterialsAndSupplies dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value581549550531525502455418385359314
Percentage of InventoryRawMaterialsAndSupplies52.646.052.950.648.355.749.360.756.356.051.6
Percentage of Assets0.60.50.70.70.70.90.80.80.80.80.7
Percentage of Assets d:VirginiaElectricAndPowerCompany1.31.31.51.51.61.61.51.61.61.51.4

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value34047916723223657432816978073263469773297439742578777617949347770447469844101311722032020157733514221485140329611229601103118125712141194506683
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.50.20.20.20.60.30.20.80.70.80.90.91.30.50.61.11.10.20.70.81.20.10.81.51.80.24.23.93.10.72.93.13.00.62.42.12.40.32.92.82.81.21.6

us-gaap:OtherAssetsCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1085227786454305304104547713416935811030931230572333957224333327677279224682712751893024927037353450380355
Percentage of OtherAssetsCurrent31.810.916.233.627.19.49.1313.652.662.012.119.223.136.827.772.739.639.340.26.78.28.146.89.23.93.265.03.513.814.220.319.118.513.510.122.228.133.844.935.831.370.2
Percentage of Assets0.10.10.00.10.10.10.00.50.40.50.10.20.20.50.10.40.40.40.10.00.10.10.00.10.10.10.10.10.50.40.10.60.60.40.10.50.60.80.11.00.90.8
Percentage of Assets d:VirginiaElectricAndPowerCompany0.20.10.10.20.20.10.11.31.01.20.20.40.51.00.30.90.90.90.20.10.10.20.10.10.10.10.30.31.00.80.31.01.10.80.11.01.11.60.21.91.61.6

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value8529384035829598172996527953419746696122948739348576578761907645875632748237361072163707286955668282604905915457776558485444852720514064993248698477234696946102446104370543364443974373242895420334215541163403903985539036
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets87.186.986.578.293.191.693.993.994.193.498.396.397.997.897.797.697.697.197.198.198.699.498.398.797.395.694.695.594.694.393.895.192.192.892.694.794.293.192.195.794.894.493.191.7

us-gaap:PropertyPlantAndEquipmentGross dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value482124743146736460834527344446470384643845749451074452443935434444282742329418134118940514400303942838734381773763937016364803568435180344783393833488328483224931684310853063129942295192913628626289862849027607
Percentage of PropertyPlantAndEquipmentGross56.556.456.356.446.946.648.348.348.248.358.157.756.856.656.656.857.157.357.657.764.064.565.166.367.067.768.469.069.770.269.970.071.071.170.667.467.567.968.168.869.269.3
Percentage of Assets49.249.048.744.143.642.745.345.445.445.157.155.655.655.455.355.555.755.655.956.763.164.264.065.465.264.764.865.965.966.265.666.565.466.065.463.963.663.262.865.865.664.5
Percentage of Assets d:VirginiaElectricAndPowerCompany106.8108.3107.1107.8107.7108.3113.5113.9114.4114.9120.7120.3119.6120.2120.5120.9120.7120.1120.2120.4119.6120.1119.0121.1120.4120.4119.2121.0120.3121.2121.8122.6122.9123.8123.5123.6123.6123.4121.6124.4123.0124.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2606725614251112494128547279452838428144277322691822018220052185421503210652079920415200121959219394168081653116222160671578015494151361504814811145961434114241140131375313548138311376813564133201374413512133081314213444
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.626.526.223.927.526.827.327.527.526.928.327.828.027.827.527.627.627.527.427.927.427.827.628.428.228.127.928.828.828.928.629.428.929.228.929.529.729.429.231.231.131.130.731.6

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value147171444614167140551377413434141561403613877136141400313889136831352213277131441293112699124361231412076119031170811622114311125511080110501089610767105801048110327101571001499759872975896151008899419712
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment56.556.456.456.448.348.149.949.950.050.663.663.162.662.963.063.263.363.563.563.571.872.072.272.372.472.673.273.473.673.873.873.673.773.973.972.171.771.972.273.473.673.9
Percentage of Assets15.014.914.813.413.312.913.613.713.813.618.017.617.517.517.317.417.517.417.417.719.720.019.920.520.420.420.421.121.221.321.121.621.321.621.421.321.321.221.122.922.922.7
Percentage of Assets d:VirginiaElectricAndPowerCompany32.633.032.532.932.832.734.234.434.734.738.038.037.738.037.838.037.937.637.337.637.337.537.038.037.738.037.538.838.639.039.239.840.040.440.441.241.341.340.843.342.943.6

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:TypeOfArrangement

d:PowerPurchaseArrangement


Accumulated
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value68364341318294
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment0.31.31.21.11.1
Percentage of Assets0.10.40.30.30.3
Percentage of Assets d:PowerPurchaseArrangement0.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5922658421578485678867980673966908267978671416656754560541855460454129537585281151748507164996448888436824262341554397813866837226362703488433887331273262831861315543090930773315233092130288296702841127651270822671325592
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets60.560.460.354.365.564.766.566.466.666.570.068.569.970.070.270.070.069.669.870.271.271.670.770.369.167.566.866.765.865.565.165.765.265.665.767.266.665.765.064.563.763.362.460.1

us-gaap:PropertyPlantAndEquipmentNet dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value334953298532569320283149931012328823240231872314933052130046297612930529052286692825827815275942711426658262742593125394250492442924100234282304222721222682176821357209282061719967196471937819011188981854917895
Percentage of PropertyPlantAndEquipmentNet56.656.556.356.446.346.047.647.747.547.355.955.554.554.154.054.354.654.855.255.561.061.662.463.864.865.666.467.268.068.668.268.367.767.767.063.363.564.064.166.567.167.0
Percentage of Assets34.234.134.030.630.429.831.731.731.631.539.238.038.137.937.938.038.238.238.539.043.444.244.144.944.844.344.444.844.744.944.544.944.144.444.042.642.342.041.742.942.741.8
Percentage of Assets d:VirginiaElectricAndPowerCompany74.275.374.674.974.975.679.479.579.780.282.882.281.982.382.782.982.882.482.882.882.382.782.083.182.782.481.782.381.782.382.682.782.883.383.182.482.282.180.781.180.180.4

us-gaap:PropertyPlantAndEquipmentNet us-gaap:LitigationCase, us-gaap:BusinessAcquisition

d:DESCRatepayerCase, d:SCANA


Property
Period End2020-09-302020-08-312020-06-302019-07-31
Value3.0272654
Percentage of PropertyPlantAndEquipmentNet0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets d:DESCRatepayerCase d:SCANA0.00.00.00.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:TypeOfArrangement

d:PowerPurchaseArrangement


Property
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value22002800280028002800
Percentage of PropertyPlantAndEquipmentNet3.84.14.14.24.2
Percentage of Assets2.32.72.72.82.8
Percentage of Assets d:PowerPurchaseArrangement0.00.00.00.00.0

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10856104931023868906984757582177757759673706560762772087032696470966858667463436224598058535774562455855617556154775458531751024876438744004191417840984183398538524194421641513492
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.110.910.76.66.77.37.97.67.57.48.49.69.29.19.19.49.39.28.98.99.79.89.89.910.010.210.210.510.610.510.210.19.19.38.98.98.89.18.78.79.79.99.78.2

us-gaap:LongTermInvestments dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value351533253200293627852471288427412685259423722576245324032402229522262189210920772034198319481878195219541934187518611808177716821626162215291520146514991406132614891492
Percentage of LongTermInvestments32.431.731.342.639.932.635.135.335.335.236.233.834.034.234.532.332.532.833.233.434.033.933.733.435.034.834.834.234.134.034.834.537.136.936.536.435.735.835.334.435.535.9
Percentage of Assets3.63.43.32.82.72.42.82.72.72.63.03.33.13.13.13.03.03.02.93.03.33.33.33.33.53.53.63.63.63.63.53.53.43.43.33.23.23.33.13.03.43.5
Percentage of Assets d:VirginiaElectricAndPowerCompany7.87.67.36.96.66.07.06.76.76.66.47.16.86.76.86.66.56.56.36.36.36.26.26.16.46.66.66.66.66.56.66.46.36.56.26.36.16.36.05.76.46.7

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value740573817381739589468946894689868985896064106410640564056405640563996399639964053294329432943294329432943044304430443046308630873125312831303141314131413141314131413141314133543503
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.67.67.77.18.68.68.68.88.99.08.28.18.28.38.48.58.78.88.99.25.45.55.65.85.96.05.65.85.96.06.26.46.56.66.76.76.86.86.97.17.27.37.37.90.0

us-gaap:Goodwill us-gaap:BusinessAcquisition

d:Birdseye


Goodwillus-gaap:
Period End2021-05-31
Value24
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets d:Birdseye0.0

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

us-gaap:OperatingSegments, d:GasDistributionSegment


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-31
Value351235122497
Percentage of Goodwill47.639.339.0
Percentage of Assets3.73.43.2
Percentage of Assets us-gaap:OperatingSegments d:GasDistributionSegment20.521.90.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value765791773878887670685618570570560536637642693
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.80.80.90.90.90.90.91.01.01.11.11.41.51.6

us-gaap:IntangibleAssetsNetExcludingGoodwill dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value334271250233225213205203202194193187184182181178188185183176217212
Percentage of IntangibleAssetsNetExcludingGoodwill43.734.337.334.036.437.436.00.00.00.034.50.00.00.033.80.00.00.028.70.00.033.0
Percentage of Assets0.30.30.30.30.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.50.5
Percentage of Assets d:VirginiaElectricAndPowerCompany0.80.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.80.80.80.80.91.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value564499455468486504
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.40.50.50.0

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value185212184191202209
Percentage of OperatingLeaseRightOfUseAsset32.842.540.440.841.641.5
Percentage of Assets0.20.20.20.20.20.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.40.50.50.50.50.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:DisposalGroupClassification, us-gaap:StatementBusinessSegments

us-gaap:SegmentDiscontinuedOperations, d:GTSAndQPipeTransactions


Operating
Period End2020-12-31
Value43
Percentage of OperatingLeaseRightOfUseAsset7.6
Percentage of Assets0.0
Percentage of Assets us-gaap:SegmentDiscontinuedOperations d:GTSAndQPipeTransactions0.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value47904953195041844256410913048629032234598284228532809581258224992339487104511031069606115913161322669219121742127610197620241835649208522162143688194919901963612514
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.95.12.04.04.13.91.30.80.92.20.83.63.73.60.83.43.43.20.71.51.81.81.02.02.42.41.24.24.24.21.24.14.23.91.44.44.84.61.54.44.64.61.41.2

us-gaap:OtherAssetsNoncurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value194219771026156615241394565876903893175702719719128462477609104527591543359538551525280217197185143134113117107978286109130219312
Percentage of OtherAssetsNoncurrent40.539.952.637.435.833.943.3101.6100.040.029.324.725.225.622.017.919.126.021.450.453.650.859.246.441.939.741.99.99.18.723.46.85.66.416.54.73.74.015.86.711.051.0
Percentage of Assets2.02.01.11.51.51.30.50.90.90.90.20.90.90.90.20.60.60.80.10.81.00.90.61.01.01.00.50.40.40.40.30.30.20.20.20.20.20.20.20.30.50.7
Percentage of Assets d:VirginiaElectricAndPowerCompany4.34.52.43.73.63.41.42.12.32.30.51.92.02.00.41.31.41.80.31.61.81.71.11.81.81.80.90.80.70.70.50.50.40.50.40.40.30.40.50.60.91.4

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi dei:LegalEntity, us-gaap:StatementGeographical, us-gaap:InvestmentType

us-gaap:EquitySecuritiesFvNi

d:VirginiaElectricAndPowerCompany, country:US, us-gaap:EquitySecurities


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2306224422792032188316142027188818581784158518011565
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.32.41.91.81.62.01.81.81.82.02.32.0
Percentage of Assets d:VirginiaElectricAndPowerCompany country:US us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:StatementGeographical, us-gaap:InvestmentType

country:US, us-gaap:EquitySecurities


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4771459946804179385133614238392638753732333038283426
Percentage of EquitySecuritiesFvNi206.9204.9205.4205.7204.5208.2209.1207.9208.6209.2210.1212.5218.9
Percentage of Assets4.94.84.94.03.73.24.13.83.83.74.34.84.5
Percentage of Assets country:US us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.00.00.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value774848944738797842111579178792091458766070287575769572410006855896707267058429459528488521143116898090995011371020917935125011381125118915621401
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.91.00.70.80.81.10.80.80.91.20.70.80.91.11.00.91.01.41.01.01.11.21.21.51.71.81.61.72.32.32.01.92.02.42.22.02.02.72.62.62.83.63.3

us-gaap:AccountsPayableCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value311311332320305261334286253255339269296308361337347329444330311338366372409456458436456462479392361347430410362395405455410499
Percentage of AccountsPayableCurrent40.236.735.243.438.331.030.036.232.127.737.145.844.843.941.344.549.945.444.448.252.850.450.452.848.648.348.151.453.540.441.040.039.736.537.840.239.542.232.440.036.431.9
Percentage of Assets0.30.30.30.30.30.30.30.30.30.30.40.30.40.40.50.40.50.50.60.50.50.60.60.70.70.80.80.80.90.91.00.80.70.70.90.90.80.90.91.00.91.2
Percentage of Assets d:VirginiaElectricAndPowerCompany0.70.70.80.70.70.60.80.70.60.60.90.70.80.91.01.01.01.01.31.01.01.11.21.21.41.51.61.51.61.71.81.51.41.41.71.71.51.71.72.01.82.2

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9979571133114610111089132312631123957836848843725779798800561583515553527566609636648647582720849676
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.21.11.01.01.31.21.11.01.11.11.11.01.11.11.10.91.00.91.00.91.01.21.41.41.51.31.72.01.6

us-gaap:AccruedLiabilitiesCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value297307253339276270253321248306251256307263248239321229277190336241315199278224228218354205294204296205363226287201214
Percentage of AccruedLiabilitiesCurrent29.832.122.329.627.324.819.125.429.70.00.030.236.436.331.829.940.140.847.536.960.845.70.035.20.00.00.035.80.00.00.032.10.00.00.034.944.434.525.2
Percentage of Assets0.30.30.30.30.30.30.20.30.30.40.30.30.40.40.30.30.50.40.50.30.60.40.60.40.50.40.50.40.70.40.60.40.60.40.80.50.70.50.5
Percentage of Assets d:VirginiaElectricAndPowerCompany0.70.70.60.80.70.70.60.80.70.80.70.70.90.80.70.71.00.70.90.61.10.81.10.71.00.80.80.81.30.81.20.81.20.91.51.01.20.91.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent dei:LegalEntity

us-gaap:ContractWithCustomerLiabilityCurrent

d:VirginiaElectricAndPowerCompany


Contract
Period End2020-12-312019-12-312018-12-31
Value114121121
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0
Percentage of Assets0.10.10.2
Percentage of Assets d:VirginiaElectricAndPowerCompany0.30.30.3

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11676118361084317560953710448993912191950397767647921289189339963685599502784281159027726675188120674667368021719875797243635169946453737769727763656268066654696254965514450157736833
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.912.211.316.89.210.09.611.99.49.89.811.611.412.112.611.412.910.811.313.011.812.613.811.912.014.513.214.514.112.614.013.315.214.816.614.014.714.415.312.512.710.513.516.1

us-gaap:LiabilitiesCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value374629912827262827972301247226543258275628152988290926102920255431802318252231442833261037303472346436073276268125501949221717892236175730072623287827903121225722222078
Percentage of LiabilitiesCurrent32.125.326.115.029.322.024.921.834.328.236.832.432.627.930.329.833.529.631.134.839.034.745.951.551.445.045.535.435.230.731.727.730.325.238.740.042.341.944.841.140.336.0
Percentage of Assets3.83.12.92.52.72.22.42.63.22.83.63.83.73.43.83.44.33.23.54.54.64.46.36.16.26.56.05.15.03.94.43.74.63.76.45.66.26.16.85.15.14.9
Percentage of Assets d:VirginiaElectricAndPowerCompany8.36.86.56.16.75.66.06.58.17.07.68.28.07.38.37.49.36.97.69.68.78.211.811.411.412.211.19.49.07.18.26.88.77.012.110.812.011.813.39.79.69.3

us-gaap:LiabilitiesCurrent us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

d:RetailEnergyMarketingOperations


Liabilities
Period End2021-06-302021-03-312020-12-31
Value171515
Percentage of LiabilitiesCurrent0.10.10.1
Percentage of Assets0.00.00.0
Percentage of Assets d:RetailEnergyMarketingOperations0.00.00.0

Long Term Debt Current

us-gaap:LongTermDebtCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtCurrent

d:SBLHoldco, us-gaap:VariableInterestEntityPrimaryBeneficiary


Long
Period End2021-06-302021-03-312020-12-312020-06-302019-12-31
Value3534323231
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets d:SBLHoldco us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value5459585962
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.1

us-gaap:OperatingLeaseLiabilityCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value2830303133
Percentage of OperatingLeaseLiabilityCurrent51.950.851.752.553.2
Percentage of Assets0.00.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.10.10.10.10.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value21141924172523762446141422352261215917951866258925632321153710231093132112901514133114631232140514351454939151514821518943153714421370709148614661660547160112081247579677
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.01.82.32.41.42.22.22.11.82.43.33.33.02.01.41.51.81.82.22.22.52.12.52.62.61.72.92.93.01.93.23.02.91.53.23.23.61.23.62.82.91.41.6

us-gaap:OtherLiabilitiesCurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value715591448563598732450867126211055878491321597537536585634429690585592216666620505271463452462306413403319296475562520171651527571
Percentage of OtherLiabilitiesCurrent33.830.726.023.724.451.820.138.358.561.631.532.851.525.734.952.453.548.033.345.644.040.517.547.443.234.728.930.630.530.432.426.927.923.341.732.038.331.331.340.743.698.6
Percentage of Assets0.70.60.50.50.60.70.40.81.31.10.81.11.70.80.70.70.80.90.61.01.01.00.41.21.10.90.50.90.90.90.60.90.80.70.61.01.21.10.41.51.21.3
Percentage of Assets d:VirginiaElectricAndPowerCompany1.61.31.01.31.41.81.12.13.22.81.62.33.61.71.51.51.71.91.32.11.81.90.72.22.01.70.91.61.61.71.11.61.61.31.22.02.42.20.72.82.32.6

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

d:DominionEnergyTransmissionInc, d:AtlanticCoastPipelineLLC


Other
Period End2020-09-302020-06-302020-03-312019-12-31
Value155.05.07.0
Percentage of OtherLiabilitiesCurrent0.60.20.40.3
Percentage of Assets0.00.00.00.0
Percentage of Assets d:DominionEnergyTransmissionInc d:AtlanticCoastPipelineLLC0.00.00.00.0

Taxes Payable Current

us-gaap:TaxesPayableCurrent dei:LegalEntity, us-gaap:IncomeTaxAuthority, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:TaxesPayableCurrent

d:VirginiaElectricAndPowerCompany, us-gaap:DomesticCountry, srt:AffiliatedEntity


Taxes
Period End2020-12-312019-12-312018-12-312017-12-31
Value17153416
Percentage of TaxesPayableCurrent100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:DomesticCountry srt:AffiliatedEntity0.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:StateAndLocalJurisdiction, srt:AffiliatedEntity


Taxes
Period End2020-12-312019-12-312018-12-31
Value2.0202.0
Percentage of TaxesPayableCurrent11.8133.35.9
Percentage of Assets0.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:StateAndLocalJurisdiction srt:AffiliatedEntity0.00.00.0

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

d:VirginiaElectricAndPowerCompany, srt:AffiliatedEntity


Taxes
Period End2020-12-312019-12-312018-12-312017-12-31
Value19353616
Percentage of TaxesPayableCurrent111.8233.3105.9100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany srt:AffiliatedEntity0.00.00.00.0

Long Term Debt

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

us-gaap:LongTermDebt

d:VirginiaElectricAndPowerCompany, d:TaxExemptBonds


Long
Period End2020-09-302020-06-30
Value322105
Percentage of LongTermDebt100.0100.0
Percentage of Assets0.30.1
Percentage of Assets d:VirginiaElectricAndPowerCompany d:TaxExemptBonds0.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent dei:LegalEntity

us-gaap:LongTermDebtNoncurrent

d:VirginiaElectricAndPowerCompany


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value1276012759132071232812328123271232511792112911128811321107421109111090104961049597491034898528963956296388949895289708275872687148716871979747981739874456251625862856292624668536702
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.013.213.811.811.911.811.911.511.211.314.513.614.214.313.713.913.214.213.812.915.616.215.215.816.015.016.116.716.917.215.916.515.315.813.313.313.513.713.715.615.7
Percentage of Assets d:VirginiaElectricAndPowerCompany28.329.130.328.829.330.029.828.928.228.730.729.430.531.129.930.328.630.729.627.429.530.328.329.329.627.929.630.630.931.629.630.328.729.625.225.826.326.626.529.430.1

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

d:SBLHoldco, us-gaap:VariableInterestEntityPrimaryBeneficiary


Long
Period End2021-06-302021-03-312020-12-312020-06-302019-12-31
Value228238239258267
Percentage of LongTermDebtNoncurrent1.81.91.82.12.2
Percentage of Assets0.20.20.20.20.3
Percentage of Assets d:SBLHoldco us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.0

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

d:SBLHoldco, us-gaap:VariableInterestEntityPrimaryBeneficiary


Long
Period End2020-09-302019-12-31
Value260267
Percentage of LongTermDebtNoncurrent2.12.2
Percentage of Assets0.20.3
Percentage of Assets d:SBLHoldco us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value345853324833957331453714634615338243363536648368613114430948
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.334.435.431.735.833.232.632.936.336.840.040.4

us-gaap:LongTermDebtAndCapitalLeaseObligations dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1325213240136871280512358123501234111321
Percentage of LongTermDebtAndCapitalLeaseObligations38.339.840.338.633.335.736.536.4
Percentage of Assets13.513.714.312.211.911.911.914.5
Percentage of Assets d:VirginiaElectricAndPowerCompany29.330.231.430.029.430.129.830.7

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value626162025953581259216277
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0
Percentage of Assets6.46.46.25.65.76.0

us-gaap:DeferredIncomeTaxLiabilitiesNet dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value302728732779272027392962
Percentage of DeferredIncomeTaxLiabilitiesNet48.346.346.746.846.347.2
Percentage of Assets3.13.02.92.62.62.9
Percentage of Assets d:VirginiaElectricAndPowerCompany6.76.66.46.46.57.1

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2020-12-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value17062366257126122328216021121199129648112941299183418319627651260
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.82.32.52.63.02.82.92.02.41.02.72.73.93.92.11.83.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value436782632505396316219147
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent25.633.127.123.418.826.416.930.6
Percentage of Assets0.50.80.80.70.60.50.40.3
Percentage of Assets d:VirginiaElectricAndPowerCompany1.01.91.71.41.21.00.70.5

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-31
Value281314
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent16.513.3
Percentage of Assets0.30.3
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.0

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-31
Value14242052
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent83.586.7
Percentage of Assets1.52.0
Percentage of Assets us-gaap:PensionPlansDefinedBenefit0.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value33433934417302013202620396716846901941195619722353222822222232226422351234120011359386844334054020.00.0576057605760570.0
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.30.40.41.71.91.92.00.70.70.72.52.52.53.02.92.93.03.13.11.82.01.91.61.20.80.70.70.00.00.10.10.10.10.10.10.10.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value82658177139492458812871115171467129735085415031509751578635159513850918522248193919806741784178220251003153013191209793616657521556159015301596613145713251341590474
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.48.51.58.88.58.41.51.41.33.50.76.46.56.71.16.87.07.01.23.23.23.31.13.23.23.71.82.92.62.41.61.31.41.11.23.43.33.51.33.33.13.11.41.1

us-gaap:OtherLiabilitiesNoncurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value82478637613771700169856713101120949201736760871357863828797346784829751299436380523287351314287292263253241194252252270271266201203
Percentage of OtherLiabilitiesNoncurrent10.09.627.014.919.319.537.489.386.427.137.214.614.916.941.416.716.115.740.634.942.837.944.424.421.325.828.622.923.823.736.842.738.546.334.915.816.516.944.218.315.234.4
Percentage of Assets0.80.80.41.31.61.60.51.31.10.90.30.91.01.10.51.11.11.10.51.11.41.30.50.80.70.90.50.70.60.60.60.50.50.50.40.50.50.60.60.60.50.5
Percentage of Assets d:VirginiaElectricAndPowerCompany1.81.80.93.24.04.11.43.22.82.40.52.02.12.41.02.52.42.41.02.42.62.40.91.41.31.81.01.21.11.01.11.01.01.00.81.01.11.11.21.10.90.9

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value516442394404418
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0
Percentage of Assets0.50.40.40.40.4

us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value155180152158169
Percentage of OperatingLeaseLiabilityNoncurrent30.040.738.639.140.4
Percentage of Assets0.20.20.10.20.2
Percentage of Assets d:VirginiaElectricAndPowerCompany0.40.40.40.40.4

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value5665686766
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.1

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value2530333336
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo44.646.248.549.354.5
Percentage of Assets0.00.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value4755615958
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.10.10.1

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value2024292931
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree42.643.647.549.253.4
Percentage of Assets0.00.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.00.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value4045504949
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1519232324
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour37.542.246.046.949.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.00.00.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value3436403939
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1114181819
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive32.438.945.046.248.7
Percentage of Assets0.00.00.00.00.0
Percentage of Assets d:VirginiaElectricAndPowerCompany0.00.00.00.00.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value756582538531532
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0100.0
Percentage of Assets0.80.60.50.50.5

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value194205160160162
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive25.735.229.730.130.5
Percentage of Assets0.20.20.20.20.2
Percentage of Assets d:VirginiaElectricAndPowerCompany0.40.50.40.40.4

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value570478452463480
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.40.50.5

us-gaap:OperatingLeaseLiability dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value183187182189202
Percentage of OperatingLeaseLiability32.139.140.340.842.1
Percentage of Assets0.20.20.20.20.2
Percentage of Assets d:VirginiaElectricAndPowerCompany0.40.50.40.50.5

us-gaap:OperatingLeaseLiability us-gaap:DisposalGroupClassification, us-gaap:StatementBusinessSegments

us-gaap:SegmentDiscontinuedOperations, d:GTSAndQPipeTransactions


Operating
Period End2020-12-31
Value43
Percentage of OperatingLeaseLiability7.5
Percentage of Assets0.0
Percentage of Assets us-gaap:SegmentDiscontinuedOperations d:GTSAndQPipeTransactions0.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value997855775780798
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0
Percentage of Assets1.00.80.80.80.8

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value296326271280302
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue29.738.135.035.937.8
Percentage of Assets0.30.30.30.30.3
Percentage of Assets d:VirginiaElectricAndPowerCompany0.70.80.70.70.8

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value427377323317318
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.30.30.3

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1131398991100
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount26.536.927.628.731.4
Percentage of Assets0.10.10.10.10.1
Percentage of Assets d:VirginiaElectricAndPowerCompany0.30.30.20.20.3

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value2655026699261172633628871307263199429286276972690920107184701806417689171421628014973149171460514958142521288012664125921242212011115551157311567116991164211242110031086810568118181189611909114461163211680119431199711185100779435
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.127.627.225.227.829.530.828.627.526.925.823.423.122.922.421.620.320.520.421.523.221.621.522.222.221.821.322.122.523.123.223.222.723.122.625.225.625.825.126.426.927.928.026.30.00.0

us-gaap:StockholdersEquity dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value150641481114557143151394413556139891355012964129441304712917124971226212224118101169211782118651167811174108981064110524103021017310055100319917996797989710951993779233919788948849875088548772850771736274
Percentage of StockholdersEquity56.755.555.754.448.344.143.746.346.848.164.969.969.269.371.372.578.179.081.278.178.484.684.083.682.984.787.086.785.785.284.286.486.586.387.477.874.874.376.476.175.170.964.162.3
Percentage of Assets15.415.315.213.713.413.013.513.212.912.916.716.316.015.916.015.715.816.216.616.818.218.318.118.618.418.418.519.219.319.719.620.019.719.919.719.619.219.219.220.120.219.916.90.0
Percentage of Assets d:VirginiaElectricAndPowerCompany33.433.833.333.533.233.033.833.232.433.035.435.434.434.434.834.234.334.935.635.734.534.333.734.434.034.334.135.235.236.136.336.936.937.337.238.037.237.537.238.037.938.20.00.0

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

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-39.0-27.0-60.0-72.0-78.0-79.0-34.0-46.0-30.0-20.0-13.0-5.0-8.0-10.0-12.0
Percentage of StockholdersEquity-0.1-0.1-0.2-0.3-0.3-0.3-0.1-0.2-0.1-0.1-0.1-0.0-0.0-0.1-0.1
Percentage of Assets-0.0-0.0-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value6.04.08.07.08.04.05.05.04.03.01.0-1.0-1.01.074676158544757
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.0-0.0-0.00.00.40.40.40.40.40.40.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0-0.0-0.00.00.10.10.10.10.10.10.1
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312011-12-312010-12-312009-12-312008-12-31
Value-33.0-23.0-52.0-65.0-70.0-75.0-29.0-41.0-26.0-17.0-12.0-6.0-9.0-9.0625551504640501924265.0
Percentage of StockholdersEquity-0.1-0.1-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.10.40.30.30.30.30.30.40.20.20.20.0
Percentage of Assets-0.0-0.0-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.10.10.10.10.10.10.10.00.10.10.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312011-12-312010-12-312009-12-312008-12-31
Value57385738573857385738573857385738573857385738573857385738573857385738573847383738
Percentage of StockholdersEquity21.621.522.021.819.918.717.919.620.721.328.531.131.832.433.539.350.147.842.437.1
Percentage of Assets5.95.96.05.55.55.55.55.65.75.77.47.37.37.47.58.012.613.411.10.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

d:VirginiaElectricAndPowerCompany, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312011-12-312010-12-312009-12-312008-12-31
Value82467983775875297163678071676740613961106208607256555420531149681882163412991421
Percentage of StockholdersEquity31.129.929.728.624.822.122.423.022.222.730.932.931.330.631.034.016.413.611.614.1
Percentage of Assets8.48.38.17.26.96.56.96.66.16.18.07.77.27.06.96.94.13.83.10.0
Percentage of Assets d:VirginiaElectricAndPowerCompany us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

d:OtherComprehensiveIncomeLossFromEquityMethodInvestees


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value-1.0-1.0-1.0-1.0-2.0-2.0-2.0-3.0-2.0-2.0-2.0-2.0-3.0-3.0
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets d:OtherComprehensiveIncomeLossFromEquityMethodInvestees0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value-1309.0-1335.0-1359.0-1623.0-1385.0-1402.0-1421.0-1306.0-1322.0-1457.0-1465.0-1268.0-1286.0-1303.0-1101.0-1044.0-1058.0-1069.0-1082.0-757.0-781.0-789.0-797.0-749.0-754.0-782.0
Percentage of StockholdersEquity-4.9-5.0-5.2-6.2-4.8-4.6-4.4-4.5-4.8-5.4-7.3-6.9-7.1-7.4-6.4-6.4-7.1-7.2-7.4-5.1-5.5-6.1-6.3-5.9-6.1-6.8
Percentage of Assets-1.3-1.4-1.4-1.6-1.3-1.3-1.4-1.3-1.3-1.5-1.9-1.6-1.6-1.7-1.4-1.4-1.4-1.5-1.5-1.1-1.3-1.3-1.4-1.3-1.3-1.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value-371.0-367.0-419.0-446.0-644.0-651.0-407.0-502.0-389.0-290.0-235.0-248.0-248.0-302.0
Percentage of StockholdersEquity-1.4-1.4-1.6-1.7-2.2-2.1-1.3-1.7-1.4-1.1-1.2-1.4-1.4-1.8
Percentage of Assets-0.4-0.4-0.4-0.4-0.6-0.6-0.4-0.5-0.4-0.3-0.3-0.3-0.3-0.4
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value413262545137373430182.0-5.0-2.03.0747674630599569553535517504458519548
Percentage of StockholdersEquity0.20.10.20.20.20.10.10.10.10.10.0-0.0-0.00.04.44.14.24.03.93.73.84.04.03.64.24.7
Percentage of Assets0.00.00.10.10.00.00.00.00.00.00.0-0.0-0.00.01.00.90.90.80.80.80.90.90.90.80.91.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312010-12-312009-12-312008-12-312007-12-31
Value-1640.0-1671.0-1717.0-2016.0-1980.0-2018.0-1793.0-1777.0-1683.0-1731.0-1700.0-1520.0-1538.0-1551.0-659.0-628.0-682.0-735.0-799.0-471.0-493.0-463.0-474.0-501.0-386.0-416.0-330.0-211.0-269.0-12.0
Percentage of StockholdersEquity-6.2-6.3-6.6-7.7-6.9-6.6-5.6-6.1-6.1-6.4-8.5-8.2-8.5-8.8-3.8-3.9-4.6-4.9-5.5-3.1-3.5-3.6-3.7-4.0-3.1-3.6-2.8-1.9-2.7-0.1
Percentage of Assets-1.7-1.7-1.8-1.9-1.9-1.9-1.7-1.7-1.7-1.7-2.2-1.9-2.0-2.0-0.9-0.8-0.9-1.0-1.1-0.7-0.8-0.8-0.8-0.9-0.7-0.8-0.8-0.50.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-312008-12-31
Value268842703826461280663088432752340332995728381275992204820426200362004219370185021720517181168401619215452140151360213276128551241611957116421124211060109281062511878119531196911503119971118510077
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.428.027.626.829.831.532.829.328.127.628.325.825.725.925.324.523.323.623.523.325.223.623.123.523.022.522.023.223.222.823.222.725.325.826.025.228.026.30.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Stockholders
Period End2020-09-302019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value143151398912964129441304712497122621222411865106411005597989233875085077173
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest51.041.145.746.959.262.461.263.170.578.284.184.286.976.170.964.1
Percentage of Assets13.713.512.912.916.716.015.916.016.618.118.519.619.719.219.916.9
Percentage of Assets d:VirginiaElectricAndPowerCompany33.533.832.433.035.434.434.434.835.633.734.136.337.237.238.20.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-1640.0-1671.0-1717.0-2016.0-1980.0-2018.0-1793.0-1777.0-1683.0-1731.0-1700.0-1520.0-1538.0-1551.0-659.0-628.0-682.0-735.0-799.0-471.0-493.0-463.0-474.0-416.0-324.0-877.0-610.0-330.0-211.0-269.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-6.1-6.2-6.5-7.2-6.4-6.2-5.3-5.9-5.9-6.3-7.7-7.4-7.7-7.7-3.4-3.4-4.0-4.3-4.7-2.9-3.2-3.3-3.5-3.5-2.8-8.3-5.3-2.8-1.9-2.7
Percentage of Assets-1.7-1.7-1.8-1.9-1.9-1.9-1.7-1.7-1.7-1.7-2.2-1.9-2.0-2.0-0.9-0.8-0.9-1.0-1.1-0.7-0.8-0.8-0.8-0.8-0.6-1.9-1.3-0.8-0.50.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value21369213102125821930239842390223824221312066020834125881086210782103169865978987178629855085928160677866805876578354935180571565255994
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest79.578.880.378.177.773.070.073.972.875.557.153.253.851.550.952.950.750.250.853.152.848.449.149.149.751.745.047.658.359.5
Percentage of Assets21.822.022.221.023.123.022.921.620.520.816.213.713.813.312.913.011.811.811.912.313.311.411.410.811.511.711.413.315.30.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value33433934417302013202620396716846901941195619722353222822222232226422351234120011359384020.057570.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.21.31.36.26.56.26.02.22.42.58.89.69.811.711.512.013.013.213.37.67.88.16.93.40.00.50.50.00.00.0
Percentage of Assets0.30.40.41.71.91.92.00.70.70.72.52.52.53.02.92.93.03.13.11.82.01.91.60.70.00.10.10.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value26550266992611726336288713072631994292862769726909201071847018064176891714216280149731491714605149581425212880126641155511642
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest98.898.798.793.893.593.894.097.897.697.591.290.490.288.388.588.087.086.886.792.492.291.993.196.6100.0
Percentage of Assets27.127.627.225.227.829.530.828.627.526.925.823.423.122.922.421.620.320.520.421.523.221.621.521.323.2
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PreferredStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2387238723872387238723872387159615960.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest8.98.89.08.57.77.37.05.35.60.00.0
Percentage of Assets2.42.52.52.32.32.32.31.61.60.00.0
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value443446734189403544806455757673367124780692199128882089247936711969387023685468376585656564586095618357906697641846864170
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest16.517.315.814.414.519.722.324.525.128.341.844.744.044.541.038.540.340.940.742.242.646.847.551.053.154.558.253.541.941.4
Percentage of Assets4.54.84.43.94.36.27.37.27.17.811.811.511.311.510.49.49.49.69.69.810.711.011.011.212.312.414.715.011.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2136921310212582193023984239022382422131206602083412588108621078210316986597898717862985508592816067786680660665306170587657885861578557835699565055715493542053515256518051715150546457156525
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.822.022.221.023.123.022.921.620.520.816.213.713.813.312.913.011.811.811.912.313.311.411.411.711.711.210.811.111.411.411.511.811.711.811.711.611.511.411.411.711.912.813.315.3

us-gaap:CommonStockValue dei:LegalEntity

d:VirginiaElectricAndPowerCompany


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value573857385738573857385738573857385738573857385738573857385738573857385738573857385738573857385738573757385738573857385738573857385738573857385738573857385738573857385738
Percentage of CommonStockValue26.926.927.026.223.924.024.125.927.827.545.652.853.255.658.258.665.866.567.166.870.384.785.986.987.993.097.799.197.999.299.2100.7101.6103.0104.5105.9107.2109.2110.8111.0111.4100.4
Percentage of Assets5.95.96.05.55.55.55.55.65.75.77.47.37.37.47.57.67.87.98.08.29.39.69.810.110.310.410.611.011.111.311.511.811.812.212.312.212.412.412.613.013.213.4
Percentage of Assets d:VirginiaElectricAndPowerCompany12.713.113.113.413.614.013.914.114.314.615.615.715.816.116.316.616.817.017.217.517.718.118.118.818.919.419.420.120.320.821.321.822.222.823.123.724.024.324.424.624.825.8

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock dei:LegalEntity

us-gaap:AdditionalPaidInCapitalCommonStock

d:VirginiaElectricAndPowerCompany


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value111311131113111311131113111311131113111311131113111311131113111311131113111311131113111311131113111311131113111311131113111311131113111311131112111211111111111111111111
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.21.21.11.11.1