10-K 1 d-20231231.htm 10-K 10-K
0000103682false0000715957falseFYFYhttp://fasb.org/us-gaap/2023#AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrenthttp://fasb.org/us-gaap/2023#AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrenthttp://fasb.org/us-gaap/2023#AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrenthttp://fasb.org/us-gaap/2023#AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent1http://www.dominionenergy.com/20231231#ElectricFuelAndOtherEnergyRelatedPurchaseshttp://www.dominionenergy.com/20231231#ElectricFuelAndOtherEnergyRelatedPurchaseshttp://www.dominionenergy.com/20231231#ElectricFuelAndOtherEnergyRelatedPurchaseshttp://www.dominionenergy.com/20231231#ElectricFuelAndOtherEnergyRelatedPurchaseshttp://www.dominionenergy.com/20231231#ElectricFuelAndOtherEnergyRelatedPurchaseshttp://www.dominionenergy.com/20231231#ElectricFuelAndOtherEnergyRelatedPurchasesOctober 31, 2021http://fasb.org/us-gaap/2023#GainLossOnDispositionOfAssetshttp://fasb.org/us-gaap/2023#GainLossOnDispositionOfAssetsJuly 20232022-07http://www.dominionenergy.com/20231231#DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrenthttp://www.dominionenergy.com/20231231#DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrenthttp://www.dominionenergy.com/20231231#DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrenthttp://www.dominionenergy.com/20231231#DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentGrosshttp://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentGrosshttp://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentGrosshttp://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentGrosshttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2023#DeferredCreditsAndOtherLiabilitieshttp://fasb.org/us-gaap/2023#DeferredCreditsAndOtherLiabilitieshttp://fasb.org/us-gaap/2023#DeferredCreditsAndOtherLiabilitieshttp://fasb.org/us-gaap/2023#DeferredCreditsAndOtherLiabilitieshttp://fasb.org/us-gaap/2023#LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent http://fasb.org/us-gaap/2023#OtherLongTermDebtNoncurrenthttp://fasb.org/us-gaap/2023#OtherLongTermDebtNoncurrenthttp://fasb.org/us-gaap/2023#LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent http://fasb.org/us-gaap/2023#OtherLongTermDebtNoncurrenthttp://fasb.org/us-gaap/2023#OtherLongTermDebtNoncurrenthttp://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentGrosshttp://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentGrosshttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2023#OtherLongTermDebtNoncurrenthttp://fasb.org/us-gaap/2023#OtherLongTermDebtNoncurrenthttp://fasb.org/us-gaap/2023#Revenueshttp://fasb.org/us-gaap/2023#Revenueshttp://fasb.org/us-gaap/2023#Revenues2024-06-3001-31-202407-31-202410-31-20242026-01-31http://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/us-gaap/2023#OtherNonoperatingIncomeExpensehttp://fasb.org/srt/2023#AffiliatedEntityMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMemberhttp://www.dominionenergy.com/20231231#NuclearDecommissioningTrustFundMember0000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMemberd:OtherOperationAndMaintenanceMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957d:AcquisitionOfSolarProjectHardinIInOhioMember2021-01-012021-01-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957us-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:AtlanticCoastPipelineLLCMemberus-gaap:OtherCurrentLiabilitiesMember2022-12-310000715957d:ElectricDistributionGridTransformationProjectsMemberd:VirginiaElectricAndPowerCompanyMember2023-03-012023-03-310000715957d:DominionEnergyVirginiaMember2022-02-012022-02-280000715957us-gaap:TrustForBenefitOfEmployeesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957d:EastOhioPsncAndQuestarGasMemberd:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2022-12-310000715957us-gaap:RevolvingCreditFacilityMemberd:AtlanticCoastPipelineLLCMember2017-10-012017-10-310000715957d:AlignRNGLLCMember2022-12-310000715957d:FixedPriceNaturalGasNoncurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:CorporateAndOtherMemberus-gaap:CaliforniaFranchiseTaxBoardMember2023-06-300000715957d:NonregulatedSolarProjectsMemberd:SBLHoldcoLLCMember2021-12-012021-12-310000715957us-gaap:JuniorSubordinatedDebtMemberd:July2016HybridsMember2021-08-012021-08-310000715957d:IndustrialMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957d:IncomeLossFromDiscontinuedOperationsMember2022-01-012022-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:NaturalGasBaseRateMember2023-09-012023-09-300000715957us-gaap:JuniorSubordinatedDebtMemberd:July2016HybridsMember2021-08-310000715957d:DominionCovePointLNGLPMember2022-12-310000715957d:IndustrialMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957d:AcquisitionOfSolarProjectPumpkinseedInVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberd:DominionCovePointLNGLPMember2023-07-310000715957srt:MaximumMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:PumpedStorageMemberd:EndOfYearTwoThousandThirtyFiveMember2020-04-012020-04-300000715957d:OtherSalesMember2021-01-012021-12-310000715957us-gaap:NondesignatedMemberd:ElectricFuelAndOtherEnergyRelatedPurchasesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957d:RiderUMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:PreviousPhaseMember2023-01-012023-12-310000715957d:OtherInvestmentMember2022-12-310000715957srt:MaximumMemberus-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-10-012023-12-310000715957d:OtherSalesMemberd:TredegarSolarFundILlcMember2021-01-012021-12-310000715957us-gaap:EquitySecuritiesMembercountry:USus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:RegulatedGasSalesMemberd:CommercialMember2021-01-012021-12-310000715957us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CommodityContractMember2023-12-310000715957d:CurrentAssetsHeldForSaleMember2021-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2023-07-012023-07-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:FinancialTransmissionRightsMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:DominionEnergyMemberd:GeneralCorporatePurposesMember2023-01-012023-12-310000715957us-gaap:JuniorSubordinatedDebtMemberd:UnsecuredJuniorSubordinatedNotesPayableToAffiliatedTrustsEightPointFourPercentDueMember2023-12-310000715957d:TredegarSolarFundILlcMemberd:OtherSalesMember2022-01-012022-12-310000715957d:DominionEnergyGasHoldingsLLCMember2022-12-310000715957us-gaap:CashFlowHedgingMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMember2022-01-012022-03-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaMember2021-12-310000715957d:SecuredSeniorNotesFourPointEightTwoPercentDueTwoThousandFourtyTwoMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderOSWMember2023-01-012023-12-310000715957us-gaap:NondesignatedMember2022-01-012022-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMember2022-01-012022-12-310000715957d:SeniorNotesDueInTwoThousandFiftyFourMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:SubsequentEventMember2024-01-310000715957us-gaap:AdditionalPaidInCapitalMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:TaxExemptFinancingsZeroPointSevenFiveToThreePointSixFivePercentDueTwoThousandThirtyTwoToTwoThousandFortyOneMemberd:VirginiaElectricAndPowerCompanyMemberd:TaxExemptFinancingMember2022-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:RiderEMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:CommercialMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957d:DominionEnergyServicesIncMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:RelatedPartyMember2022-12-310000715957d:DominionEnergyDirectMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:UtilityScaleSolarMember2023-10-310000715957d:MillstoneUnitMember2023-12-310000715957d:NewCorporateOfficeMemberd:LessorMemberd:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember2019-12-310000715957d:ConstructNewSwitchingStationSubstationTransmissionLinesAndRelatedProjectsInCharlotteHalifaxAndMecklenburgCountiesVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:PensionPlansDefinedBenefitMembersrt:MinimumMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:SegmentContinuingOperationsMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2023-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957us-gaap:LetterOfCreditMemberd:CreditFacilityMaturingInJuneTwoThousandFourMember2023-03-310000715957us-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310000715957d:TredegarSolarFundILlcMemberd:OtherSalesMember2023-12-310000715957us-gaap:NoncontrollingInterestMember2022-12-310000715957d:PowerPurchaseArrangementMember2022-01-012022-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2023-12-310000715957us-gaap:RetainedEarningsMember2020-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2022-12-310000715957d:DominionEnergyServicesIncMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:BaseRateCaseMember2023-04-012023-04-300000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2023-12-310000715957d:QPipeGroupMemberd:SouthwestGasMember2021-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310000715957us-gaap:OtherPlantInServiceMember2022-01-012022-12-310000715957us-gaap:SeriesAPreferredStockMember2022-10-012022-12-310000715957us-gaap:NoncontrollingInterestMember2021-12-310000715957d:UtilityTaxExemptLoanThreePointEightPercentDue2033Memberd:TaxExemptFinancingMember2022-12-310000715957d:DerivativeAssetsMember2023-12-3100007159572019-01-012019-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957srt:WeightedAverageMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2022-05-012022-05-310000715957d:DominionCovePointLNGLPMember2021-01-012021-12-310000715957us-gaap:CommodityContractMember2020-12-310000715957us-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-12-310000715957d:NorthCarolinaRegulationMemberd:PublicServiceCompanyOfNorthCarolinaCustomerUsageTrackerMember2023-09-012023-09-300000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-10-012023-12-310000715957d:SolarMember2023-12-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2022-01-012022-12-310000715957us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-01-012023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:EndOfYearTwoThousandThirtyFiveMemberd:SolarAndOnshoreWindMember2020-04-012020-04-300000715957d:NNDProjectCostsMember2023-12-310000715957us-gaap:NondesignatedMemberd:OtherOperationAndMaintenanceMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanRealEstateMember2022-12-310000715957us-gaap:ElectricityGenerationPlantNonNuclearMember2023-01-012023-12-310000715957d:QuestarGasAndWexproMemberd:EnbridgeMember2023-01-012023-12-310000715957d:NorthCarolinaRegulationMember2023-03-012023-03-310000715957stpr:PA2023-01-012023-12-310000715957d:EnhancedJuniorSubordinatedNotesFivePointSevenFivePercentDueTwoThousandFiftyFourMemberd:EnhancedJuniorSubordinatedNotesMember2023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:EastOhioMember2023-01-012023-12-310000715957d:QPipeGroupMemberd:SouthwestGasMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:FixedPriceElectricityNoncurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:OtherNonregulatedRevenuesMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMemberd:GeneralCorporatePurposesMember2023-12-310000715957d:DominionEnergyKewauneeIncMember2021-05-310000715957d:QuestarGasAndWexproMemberd:EnbridgeMember2023-09-300000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2023-12-310000715957d:HydroelectricFacilitiesMemberd:EnvironmentalProtectionAgencyAndStateRegulatoryAgenciesMember2023-01-012023-12-310000715957us-gaap:IntersegmentEliminationMemberd:ContractedEnergyMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:LongTermDebtDueWithinOneYearMember2023-12-310000715957d:QPipeGroupMemberd:TransitionServiceAgreementMemberd:SouthwestGasMember2022-01-012022-12-310000715957d:InsuranceContractsMember2023-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMemberus-gaap:SeriesAPreferredStockMember2022-05-012022-05-310000715957d:VirginiaElectricAndPowerCompanyMember2022-10-012022-12-310000715957d:SecuredSeniorNotesFourPointEightTwoPercentDueTwoThousandFourtyTwoMemberd:EagleSolarLlcMemberus-gaap:SubsequentEventMember2024-02-230000715957d:TaxExemptFinancingMemberd:VariableRateDue2038Member2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderGVMember2023-01-012023-12-310000715957d:ForwardSaleAgreementMember2021-11-300000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-12-310000715957us-gaap:GasTransmissionMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DominionEnergyVirginiaMember2022-01-012022-12-310000715957d:UnsecuredSeniorNotesThreePointOneZeroToSevenPointFourFivePercentDueTwoThousandTwentySixToTwoThousandFiftyThreeMembersrt:MaximumMemberd:PsncMember2023-12-310000715957us-gaap:SeriesBPreferredStockMember2022-01-012022-03-310000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:InterestRateHedgesMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:SeriesAPreferredStockMember2023-10-012023-12-310000715957us-gaap:DomesticCountryMemberd:FederalProductionAndOtherCreditsMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:EarliestTaxYearMember2023-01-012023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:EastOhioPsncAndQuestarGasMember2023-09-012023-09-300000715957us-gaap:CommonStockMember2021-07-012021-07-310000715957d:UtilityPropertyMember2022-01-012022-12-310000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:NonRegulatedSolarGenerationFacilityMemberd:OtherSalesMember2022-01-012022-12-310000715957d:FederalProductionAndOtherCreditsMemberus-gaap:DomesticCountryMemberus-gaap:EarliestTaxYearMember2023-01-012023-12-310000715957srt:MaximumMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310000715957d:DeferredRiderCostsForVirginiaElectricUtilityMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-10-310000715957d:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DeferredEarlyPlantRetirementChargesMember2022-12-310000715957us-gaap:NondesignatedMemberd:ElectricFuelAndOtherEnergyRelatedPurchasesMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembersrt:MinimumMember2022-12-310000715957us-gaap:OperatingSegmentsMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMemberus-gaap:StateAndLocalJurisdictionMember2022-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:IndustrialMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:VirginiaRegulationMember2020-04-012020-04-300000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-12-310000715957d:DominionEnergyVirginiaMember2022-01-012022-03-310000715957us-gaap:InterestRateContractMemberus-gaap:NondesignatedMemberd:InterestAndRelatedChargesMember2021-01-012021-12-310000715957us-gaap:SeriesBPreferredStockMember2022-04-012022-06-300000715957us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2022-12-310000715957us-gaap:RetainedEarningsMember2021-01-012021-12-310000715957us-gaap:IntersegmentEliminationMemberd:DominionEnergyVirginiaMember2023-01-012023-12-310000715957d:UllicoIncorMember2023-01-012023-12-310000715957d:AtlanticCoastPipelineLLCMember2022-01-012022-12-310000715957us-gaap:ComputerSoftwareIntangibleAssetMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957srt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2022-12-310000715957d:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2022-12-310000715957d:CorporateDebtFixedIncomeSecuritiesMember2023-01-012023-12-310000715957us-gaap:ElectricDistributionMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMember2024-02-190000715957us-gaap:CommonStockMember2022-05-012022-05-310000715957us-gaap:SeriesCPreferredStockMember2023-07-012023-09-300000715957d:VirginiaElectricAndPowerCompanyMemberd:InterestRateHedgesMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ConstructNewGermannaSubstationTransmissionLineAndRelatedProjectsInCulpeperCountyVirginiaMember2023-12-310000715957d:InterestRateNoncurrentDerivativeContractMember2023-12-310000715957us-gaap:DiscontinuedOperationsHeldforsaleMember2022-01-012022-12-310000715957srt:MaximumMember2023-12-310000715957srt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:FinancialTransmissionRightsMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:ElectricDistributionMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2022-01-012022-12-310000715957us-gaap:CommonStockMember2019-01-012019-12-3100007159572022-10-012022-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:CostOfFuelMemberus-gaap:SubsequentEventMember2024-02-012024-02-230000715957d:OhioRegulationMemberd:PipelineInfrastructureReplacementProgramMember2008-01-012008-12-310000715957us-gaap:SuretyBondMember2023-12-310000715957d:DESCMember2023-12-310000715957d:MonetizationOfGuaranteeSettlementMember2023-01-012023-12-310000715957us-gaap:ElectricityGenerationPlantNonNuclearMember2022-01-012022-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMember2022-01-012022-12-310000715957us-gaap:SeriesAPreferredStockMember2022-07-012022-09-300000715957d:AmountsAssociatedWithDominionPensionPlanMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:PensionPlansDefinedBenefitMembersrt:AffiliatedEntityMember2023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCommonCollectiveTrustMember2022-12-310000715957d:AshpondAndLandfillClosureCostMember2023-12-310000715957us-gaap:TrustForBenefitOfEmployeesMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957d:SecuredSeniorNotesMember2023-12-310000715957d:LetterOfCreditMaturesInJune2028Member2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:SuretyBondMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:SubsequentEventMember2024-02-012024-02-230000715957d:CreditFacilitiesMaturingInDecember2021With1YearAutomaticRenewalsThrough2024Memberd:DECPHoldingsMember2023-12-310000715957us-gaap:ParentMember2023-01-012023-12-310000715957us-gaap:TrustForBenefitOfEmployeesMemberus-gaap:FixedIncomeSecuritiesMember2023-01-012023-12-310000715957d:TerraNovaRenewablePartnersMemberd:NonregulatedSolarProjectsMemberd:SBLHoldcoLLCMember2021-12-012021-12-310000715957us-gaap:JuniorSubordinatedDebtMemberd:UnsecuredJuniorSubordinatedNotesPayableToAffiliatedTrustsEightPointFourPercentDueMember2022-12-310000715957us-gaap:OperatingSegmentsMember2021-01-012021-12-310000715957us-gaap:RevenueSubjectToRefundMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:ConstructNewSwitchingStationSubstationsTransmissionLinesAndRelatedProjectsInLunenbergAndMecklenburgCountiesVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:OtherSalesMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMemberus-gaap:OverTheCounterMember2022-12-310000715957d:OtherSalesMemberd:BirdseyeMember2023-10-012023-12-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMember2023-01-012023-12-3100007159572023-10-012023-12-310000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-07-012023-09-300000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:SeriesCPreferredStockMemberd:DominionEnergyMember2021-12-310000715957d:NonregulatedElectricitySalesMember2022-01-012022-12-310000715957srt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:ElectricDistributionMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:AtlanticCoastPipelineLLCMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:GovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957d:WranglerRetailGasHoldingsLLCMemberd:GasSupplyIncMember2022-01-012022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMember2021-01-012021-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMember2022-01-012022-12-310000715957d:EastOhioPsncAndQuestarGasMember2021-01-012021-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2022-12-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:WasteManagementAndRemediationMember2022-04-012022-06-300000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:WasteManagementAndRemediationMember2023-01-012023-12-310000715957d:EastOhioMemberd:EnbridgeMember2023-09-300000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaMember2021-01-012021-12-310000715957d:SCANAMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-07-012023-09-300000715957d:CorporateDebtFixedIncomeSecuritiesMember2023-12-310000715957d:FourBrothersAndThreeCedarsMember2021-12-012021-12-310000715957us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-01-012022-12-310000715957d:PersonalInjuryOrWrongfulDeathCasesMemberd:SCANAMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-11-082023-11-080000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMemberd:WasteManagementAndRemediationMember2023-01-012023-12-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMember2020-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-07-310000715957us-gaap:OtherPlantInServiceMember2023-01-012023-12-310000715957us-gaap:RetainedEarningsMember2022-12-310000715957d:ServicesProvidedByAffiliatesMemberd:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMember2021-01-012021-12-310000715957d:InsuranceContractsMember2022-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:StockBasedAwardsMember2023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:EastOhioPsncAndQuestarGasMemberd:DominionCovePointLNGLPMember2023-09-012023-09-300000715957d:HopeGasIncMember2022-08-310000715957d:QuestarGasAndWexproMemberd:EnbridgeMember2022-12-310000715957us-gaap:EquitySecuritiesMemberd:VirginiaElectricAndPowerCompanyMembercountry:USus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:NondesignatedMemberd:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:DominionEnergyMemberd:GeneralCorporatePurposesMember2023-10-012023-10-310000715957us-gaap:SeriesCPreferredStockMember2022-07-012022-09-300000715957us-gaap:InterestRateContractMemberus-gaap:OverTheCounterMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2021-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-02-280000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMember2022-06-012022-06-300000715957us-gaap:InvestmentCreditMemberus-gaap:DomesticCountryMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957srt:MaximumMemberus-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310000715957us-gaap:DiscontinuedOperationsHeldforsaleMember2023-01-012023-12-310000715957srt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:ParentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-12-310000715957us-gaap:NoncontrollingInterestMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-12-310000715957d:FiniteLivedEquityMethodInvestmentBasisDifferenceMember2022-01-012022-12-310000715957us-gaap:DomesticCountryMember2023-01-012023-12-310000715957d:DeferredRiderCostsForVirginiaElectricUtilityMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:ElectricDistributionGridTransformationProjectsMemberd:VirginiaElectricAndPowerCompanyMember2023-03-310000715957d:FixedPriceElectricityCurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957d:ConstructNewSwitchingStationSubstationsTransmissionLinesAndRelatedProjectsInLunenbergAndMecklenburgCountiesVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityGenerationPlantNonNuclearMember2022-01-012022-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:TaxExemptFinancingsZeroPointSevenFiveToThreePointSixFivePercentDueTwoThousandThirtyTwoToTwoThousandFortyOneMembersrt:MaximumMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:CloverPowerStationMember2023-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMemberd:DESCMemberus-gaap:CommonStockMember2022-05-012022-05-310000715957us-gaap:PensionPlansDefinedBenefitMember2021-12-310000715957us-gaap:ForeignExchangeContractMember2023-12-310000715957srt:MaximumMemberd:VirginiaPowerAndStonepeakMembersrt:ScenarioForecastMember2024-02-290000715957d:TerraNovaRenewablePartnersMemberd:DominionEnergyMidstreamPartnersLPMemberd:NonregulatedSolarProjectsMemberd:FourBrothersAndThreeCedarsMember2023-12-310000715957us-gaap:SeriesAPreferredStockMember2023-12-310000715957d:ServicesProvidedByAffiliatesMemberd:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMember2023-01-012023-12-310000715957us-gaap:RevenueSubjectToRefundMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Memberd:ForeignEquitySecuritiesMember2022-12-310000715957d:TaxExemptFinancingsZeroPointSevenFiveToThreePointSixFivePercentDueTwoThousandThirtyTwoToTwoThousandFortyOneMemberd:VirginiaElectricAndPowerCompanyMemberd:TaxExemptFinancingMember2023-12-310000715957us-gaap:ElectricityMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:DSMRidersMember2023-01-012023-12-310000715957us-gaap:NoncontrollingInterestMember2020-12-310000715957srt:MaximumMemberd:NonregulatedGenerationSolarMember2023-12-310000715957srt:MaximumMemberus-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-07-012023-09-300000715957d:NonRegulatedSolarGenerationFacilityMemberd:OtherSalesMember2023-01-012023-12-310000715957us-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:QuestarGasAndWexproMemberd:UnsecuredSeniorAndMediumTermNotesTwoPointNineEightPercentToSevenPointTwoZeroPercentDueToMember2023-12-310000715957us-gaap:ParentMember2021-01-012021-12-310000715957d:TradingAccountAssetMember2023-12-310000715957d:ConstructNewCirrusAndKeyserSwitchingStationsTransmissionLinesAndRelatedProjectsInCulpeperVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:GovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMemberd:CreditFacilityMaturingInJulyTwoThousandTwentyFourMember2023-07-310000715957srt:MaximumMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2022-12-310000715957d:DominionEnergyMember2023-12-310000715957d:BasisNaturalGasNoncurrentDerivativeContractMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2022-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-01-012023-12-310000715957us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberd:InterestAndRelatedChargesMember2022-01-012022-12-310000715957d:QuestarGasAndWexproMemberd:UnsecuredSeniorAndMediumTermNotesTwoPointNineEightPercentToSevenPointTwoZeroPercentDueToMembersrt:MinimumMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:ByEndOfYearTwoThousandTwentyFourMemberd:UtilityScaleSolarMember2020-04-012020-04-300000715957d:OtherRegulatedRevenuesMember2023-01-012023-12-310000715957d:SurryAndNorthAnnaMember2022-01-012022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957srt:MaximumMemberus-gaap:DeferredProjectCostsMember2023-12-3100007159572021-12-3100007159572023-04-012023-06-300000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:UnsecuredDebtMember2023-12-310000715957srt:MaximumMembersrt:ScenarioForecastMemberd:StonepeakMember2024-02-290000715957d:UnsecuredSeniorNotesThreePointOneZeroToSevenPointFourFivePercentDueTwoThousandTwentySixToTwoThousandFiftyThreeMemberd:PsncMembersrt:MinimumMember2023-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:OverTheCounterMember2022-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:DominionEnergyServicesIncMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:WranglerRetailGasHoldingsLLCMemberd:GasSupplyIncMember2021-01-012021-12-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMembersrt:MaximumMemberd:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMemberd:CleanWaterActMember2020-10-012020-10-310000715957srt:MinimumMembersrt:ScenarioForecastMember2024-02-012024-02-290000715957us-gaap:FairValueInputsLevel1Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:CashEquivalentsAndOtherInvestmentMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:UtilityScaleSolarMember2022-10-310000715957d:DESCMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957us-gaap:DeferredIncomeTaxChargesMember2023-12-3100007159572022-08-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMembersrt:MinimumMember2022-05-310000715957us-gaap:EquitySecuritiesMemberd:VirginiaElectricAndPowerCompanyMembercountry:USus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:SustainabilityRevolvingCreditFacilityMember2023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:AtlanticCoastPipelineLLCMemberd:DominionEnergyGasHoldingsLLCMember2014-09-300000715957us-gaap:OperatingSegmentsMember2022-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:PsncMember2022-01-012022-12-310000715957d:DeferredCostOfFuelUsedInElectricGenerationMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2023-11-012023-11-300000715957us-gaap:NondesignatedMemberd:OtherOperationAndMaintenanceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:PreferredStockMemberd:TwoThousandAndNineteenSeriesACorporateUnitsMember2019-06-142019-06-140000715957d:QPipeGroupMemberd:DispositionOfGTSOperationsMember2021-01-012021-12-310000715957us-gaap:StateAndLocalJurisdictionMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DeferredEarlyPlantRetirementChargesMember2023-12-310000715957d:SouthCarolinaRegulationMemberd:ElectricBaseRateCaseMember2021-08-012021-08-310000715957us-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-12-310000715957us-gaap:PreferredStockMember2022-01-012022-12-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2023-12-310000715957us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-01-012023-03-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:QuestarGasMember2021-01-012021-12-310000715957srt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:FinancialTransmissionRightsMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMember2023-01-012023-12-310000715957d:AcquisitionOfSolarProjectAtSchoolsInVirginiaMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:InterestRateNoncurrentDerivativeContractMember2023-12-310000715957d:FourBrothersAndThreeCedarsMemberd:ClearwayEnergyIncMember2021-12-012021-12-310000715957us-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310000715957us-gaap:SeriesCPreferredStockMember2022-04-012022-06-300000715957d:DVirginiaElectricAndPowerCompanyMemberd:FutureDecommissioningOfNuclearFacilitiesMember2023-01-012023-12-310000715957d:WranglerRetailGasHoldingsLLCMember2020-01-012020-12-310000715957d:NorthCarolinaRegulationMemberd:RiderDMemberus-gaap:SubsequentEventMemberd:PublicServiceCompanyOfNorthCarolinaMember2024-01-012024-01-310000715957us-gaap:SegmentDiscontinuedOperationsMember2022-01-012022-12-310000715957us-gaap:RestrictedStockMember2020-12-310000715957d:OtherCurrentLiabilitiesAndOtherDeferredCreditsAndOtherLiabilitiesMember2022-12-310000715957us-gaap:CommonStockMember2022-06-012022-06-300000715957us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2023-12-310000715957us-gaap:CorporateAndOtherMemberus-gaap:IntersegmentEliminationMember2021-01-012021-12-310000715957d:VariousProgramsMember2022-01-012022-12-310000715957d:DVirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:DesignatedAsHedgingInstrumentMember2023-12-310000715957d:OtherNonregulatedRevenuesMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957us-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:HedgeFundsMember2023-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CashFlowHedgingMember2022-01-012022-12-310000715957us-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel1Membercountry:USus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:ResidentialMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-01-012022-12-310000715957srt:MaximumMemberd:StockBasedAwardsMember2023-01-012023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:DominionCovePointLNGLPMember2021-01-012021-12-310000715957us-gaap:LetterOfCreditMemberd:VirginiaElectricAndPowerCompanyMember2023-03-310000715957us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:NondesignatedMemberd:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMember2022-01-012022-12-310000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMemberd:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2023-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:CostOfFuelMember2023-03-012023-03-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMemberd:CvowCommercialProjectExcludingFinancingCostsMember2024-02-012024-02-290000715957d:VirginiaElectricAndPowerCompanyMembercountry:US2022-12-310000715957d:ChangeInDepreciationRatesFromNewDepreciationStudyMember2022-01-012022-03-310000715957d:AlternativeRevenueProgramsMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaRegulationMemberd:SecuritizationOptionMemberd:AnnualFuelFactorMember2023-01-012023-12-310000715957d:UllicoIncorMember2022-02-020000715957d:DominionEnergyVirginiaMember2022-12-310000715957d:QuestarGasAndWexproMemberd:UnsecuredSeniorNotesTwoPointNineEightMember2023-12-310000715957us-gaap:LetterOfCreditMember2023-02-270000715957d:QPipeGroupMemberd:TransitionServiceAgreementMemberd:SouthwestGasMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ForeignExchangeCurrentDerivativeContractMember2023-12-310000715957d:DominionEnergyMemberus-gaap:SeriesBPreferredStockMember2022-01-012022-12-310000715957us-gaap:CommonStockMember2023-01-012023-12-310000715957d:InsuranceContractsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957d:OhioRegulationMemberd:CapitalExpenditureProgramMember2023-12-3100007159572023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DSMRidersMember2023-01-012023-12-310000715957us-gaap:EarliestTaxYearMemberus-gaap:StateAndLocalJurisdictionMember2023-01-012023-12-310000715957us-gaap:NondesignatedMemberus-gaap:SalesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957d:DeferredNuclearRefuelingOutageCostsMember2023-12-310000715957us-gaap:LongTermDebtMember2023-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957d:AlternativeRevenueProgramsMember2021-01-012021-12-310000715957srt:MaximumMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMember2021-12-310000715957d:CreditFacilitiesMaturingInDecember2021With1YearAutomaticRenewalsThrough2024Memberd:DECPHoldingsMember2022-12-310000715957srt:MaximumMembersrt:ScenarioForecastMemberd:CvowCommercialProjectExcludingFinancingCostsConditionTwoMember2024-02-290000715957d:OtherDebtMemberd:TaxExemptFinancingMember2022-12-310000715957d:VirginiaRegulationMember2023-07-012023-07-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMemberus-gaap:OverTheCounterMember2023-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:OtherLiabilitiesCurrentMember2023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:MillstonePowerStationSummerSurryAndNorthAnnaMember2023-12-310000715957us-gaap:SegmentContinuingOperationsMember2022-01-012022-12-310000715957d:InsuranceContractsMember2023-01-012023-12-310000715957d:IndustrialMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957d:OhioRegulationMemberd:UEXRiderMember2023-01-012023-03-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:IncomePaymentProgramMember2023-10-012023-10-310000715957us-gaap:CorporateAndOtherMemberus-gaap:IntersegmentEliminationMember2022-01-012022-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMember2024-09-012024-09-300000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957us-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310000715957d:DerivativeLiabilitiesMember2022-12-310000715957d:ConstructDavesStoreTransmissionLineExtensionInPrinceWilliamCountyVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberd:ContractedEnergyMember2022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembersrt:MinimumMember2021-01-012021-12-310000715957us-gaap:PropertyPlantAndEquipmentOtherTypesMembersrt:MaximumMember2023-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberd:TransitionServiceAgreementMember2021-01-012021-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957us-gaap:ComputerSoftwareIntangibleAssetMember2022-12-310000715957d:RiderUMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:RestrictedStockMember2021-01-012021-12-310000715957d:RiderOSWOneMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ResidentialMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957d:BirdseyeMember2021-05-012021-05-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:VirginiaElectricAndPowerCompanyMemberd:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMemberd:WasteManagementAndRemediationMember2023-01-012023-12-310000715957us-gaap:InvestmentCreditMemberus-gaap:DomesticCountryMemberus-gaap:EarliestTaxYearMember2023-01-012023-12-310000715957d:RiderT1Memberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:AtlanticCoastPipelineLLCMember2023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:PrivateEquityFundsMember2022-12-310000715957d:OverrecoveredOtherPostretirementBenefitCostsMember2022-12-310000715957d:NonregulatedElectricitySalesMember2021-01-012021-12-310000715957us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:DeferredNuclearRefuelingOutageCostsMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:UnsecuredSeniorNotesTwoPointThreeZeroPercentToEightPointEightSevenFivePercentDueTwoThousandTwentyThreeToTwoThousandFiftyThreeMemberus-gaap:SeniorNotesMember2023-12-310000715957d:AlignRNGLLCMember2023-01-012023-12-310000715957d:PsncMemberd:EnbridgeMember2021-01-012021-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderUOneMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:UnsecuredSeniorNotesTwoPointThreeZeroPercentToEightPointEightSevenFivePercentDueTwoThousandTwentyThreeToTwoThousandFiftyThreeMemberus-gaap:SeniorNotesMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberd:GovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel1Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMembercountry:US2023-12-310000715957d:NonregulatedGenerationSolarMemberd:RevisionOfEstimatedUsefulLifeMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:WholesaleMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957us-gaap:CommodityMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergyVirginiaMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:CommercialMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957us-gaap:RevolvingCreditFacilityMember2021-06-300000715957country:US2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2023-12-310000715957us-gaap:CommodityContractMemberus-gaap:OverTheCounterMember2022-12-310000715957d:UtilityTaxExemptLoanThreePointSixTwoFiveAndFourPercentDue2028To2033Membersrt:MinimumMemberd:TaxExemptFinancingMember2023-12-310000715957us-gaap:MaterialReconcilingItemsMember2022-12-310000715957d:SecuredSeniorNotesFourPointEightTwoPercentDueTwoThousandFourtyTwoMember2023-12-310000715957d:UllicoIncorMember2022-04-012022-06-300000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:VirginiaElectricAndPowerCompanyMemberd:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMemberd:WasteManagementAndRemediationMember2022-01-012022-12-310000715957us-gaap:FairValueInputsLevel1Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:GovernmentDebtSecuritiesMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-12-310000715957us-gaap:CommonStockMember2021-01-012021-12-310000715957us-gaap:ElectricityMembersrt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:DominionEnergyVirginiaMember2023-01-012023-12-310000715957d:MillstonePowerStationMember2023-01-012023-12-310000715957d:ServicesProvidedByAffiliatesMemberd:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMember2022-01-012022-12-310000715957d:DominionEnergyGasHoldingsLLCMember2023-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:TermLoanCreditAgreementMemberd:QPipeTransactionsMember2021-07-310000715957d:OverrecoveredOtherPostretirementBenefitCostsMember2023-12-310000715957d:QPipeGroupMemberd:SouthwestGasMember2021-10-310000715957d:RiderCETwoMember2023-01-012023-12-310000715957us-gaap:TrustForBenefitOfEmployeesMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMember2022-07-012022-09-300000715957d:RiderRMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMembercountry:US2023-12-310000715957d:AccumulatedOtherThanTemporaryImpairmentsMember2023-01-012023-12-310000715957d:OtherReceivablesMemberd:SCANAMember2022-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FixedIncomeFundsMember2022-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:MayTwentyTwentyTwoMember2023-12-310000715957us-gaap:ParentMember2022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-01-012023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:InvestmentsMeasuredAtFairValueIncludingExcludingPendingPurchasesSalesAndAccruedIncomeMember2023-12-310000715957srt:MaximumMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:OffshoreWindFacilityMemberd:BeforeTwoThousandThirtyFiveMember2020-04-012020-04-300000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-10-010000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-01-012023-12-310000715957d:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2023-01-012023-12-310000715957d:EastOhioPsncAndQuestarGasMemberd:DominionCovePointLNGLPMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2023-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957d:DVirginiaElectricAndPowerCompanyMemberd:FutureDecommissioningOfNuclearFacilitiesMember2022-01-012022-12-310000715957us-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957d:SouthCarolinaRegulationMemberd:ElectricBaseRateCaseMemberd:OtherIncomeExpenseMember2021-01-012021-12-310000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMemberd:OtherOperationAndMaintenanceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:OtherOperationsAndMaintenanceExpenseMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310000715957d:TredegarSolarFundILlcMemberd:OtherSalesMember2023-01-012023-12-310000715957us-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:IndustrialMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-04-012023-06-300000715957us-gaap:RetainedEarningsMember2021-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMembersrt:MinimumMember2022-05-012022-05-310000715957d:BasisNaturalGasCurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2022-12-310000715957d:CommercialMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957d:DominionEnergyVirginiaMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:EnvironmentalRestorationCostsMember2022-12-310000715957d:BirdseyeAndMadisonMemberd:OtherSalesMemberus-gaap:SubsequentEventMember2024-02-230000715957d:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMember2022-12-310000715957d:ConstructNewSwitchingStationSubstationTransmissionLinesAndRelatedProjectsInCharlotteHalifaxAndMecklenburgCountiesVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:GasTransmissionAndStorageMemberd:DominionCovePointLNGLPMemberd:CovePointMember2023-09-300000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:AcquisitionOfSolarProjectMaplewoodInVirginiaMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:NonregulatedGenerationSolarMembersrt:MinimumMember2023-12-310000715957d:BasisNaturalGasNoncurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:RevenueSubjectToRefundMember2023-12-310000715957us-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberd:GovernmentDebtSecuritiesMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMemberd:DominionCovePointLNGLPMember2023-07-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957d:OhioRegulationMemberd:PipelineInfrastructureReplacementProgramMember2023-04-012023-04-300000715957us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310000715957us-gaap:SeriesCPreferredStockMemberd:DominionEnergyMember2023-12-310000715957d:GencoVariableRateDue2038Memberd:TaxExemptFinancingMember2023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2023-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:EstimateOfFairValueFairValueDisclosureMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ChangeInDepreciationRatesFromNewDepreciationStudyMember2022-01-012022-03-310000715957us-gaap:ForeignExchangeContractMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2023-01-012023-12-310000715957d:MonetizationOfGuaranteeSettlementMember2022-12-310000715957us-gaap:PreferredStockMember2023-12-310000715957srt:MaximumMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957us-gaap:PreferredStockMemberd:TwoThousandAndNineteenSeriesACorporateUnitsMember2019-06-140000715957d:VirginiaElectricAndPowerCompanyMemberd:DSMRidersOneMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2022-12-310000715957d:NewCorporateOfficeMemberd:LessorMemberd:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember2023-12-310000715957d:NorthCarolinaRegulationMemberd:PublicServiceCompanyOfNorthCarolinaCustomerUsageTrackerMember2023-03-012023-03-310000715957d:UtilityTaxExemptLoanThreePointEightPercentDue2033Memberd:TaxExemptFinancingMember2023-12-310000715957d:DominionEnergySouthCarolinaIncMembersrt:MaximumMemberus-gaap:CaliforniaFranchiseTaxBoardMember2023-07-012023-07-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CashFlowHedgingMember2021-01-012021-12-310000715957us-gaap:LoansPayableMember2023-12-310000715957d:ImpairmentOfAssetsAndOtherChargesBenefitsMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-03-310000715957d:UnsecuredSeniorNotesOnePointThreeZeroPercentToSixPointThreeEightPercentDueTwoThousandTwentyFiveToTwoThousandFiftyTwoMemberd:EastOhioMembersrt:MinimumMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:FinancialTransmissionRightsElectricityNoncurrentDerivativeContractMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:GovernmentAndOtherRetailMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DominionEnergyVirginiaMember2023-01-012023-12-3100007159572022-12-310000715957us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957d:GasTransmissionAndStorageMemberd:DominionCovePointLNGLPMember2022-12-310000715957d:DominionEnergyMember2023-09-012023-09-300000715957d:UnsecuredSeniorNotesTwoPointNineEightMemberd:QuestarGasAndWexproMember2023-01-012023-12-310000715957us-gaap:NondesignatedMemberd:PurchasedGasMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2021-01-012021-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957us-gaap:PensionPlansDefinedBenefitMembersrt:MinimumMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembersrt:ScenarioForecastMember2024-01-012024-12-310000715957us-gaap:OperatingSegmentsMemberd:ContractedEnergyMember2021-12-310000715957us-gaap:CommonStockMember2021-08-012021-08-310000715957d:IndustrialRevenueBondsMember2023-12-310000715957d:InterestRateCurrentDerivativeContractMember2023-12-310000715957d:RegulatedGasTransportationAndStorageMember2021-01-012021-12-310000715957us-gaap:FairValueMeasurementsRecurringMemberd:GovernmentDebtSecuritiesMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957d:InsuranceContractsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2021-10-012021-10-310000715957d:AccumulatedOtherThanTemporaryImpairmentsMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957d:PowerPurchaseArrangementMember2023-01-012023-12-310000715957srt:ConsolidationEliminationsMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:StateAndLocalJurisdictionMember2023-01-012023-12-310000715957us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2023-12-310000715957d:CreditFacilityMaturingInOctoberTwoThousandTwentyFourMemberd:ThreeSixtyFourDayTermLoanFacilityMember2023-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMember2022-12-310000715957d:QPipeGroupMemberd:SouthwestGasMember2021-12-012021-12-310000715957us-gaap:EquityMethodInvesteeMemberd:DominionCovePointLNGLPMemberd:GuaranteesWithMaximumLimitMember2023-12-310000715957d:ForwardSaleAgreementMember2022-12-012022-12-3100007159572022-07-012022-09-300000715957d:VirginiaElectricAndPowerCompanyMemberd:InterestRateCurrentDerivativeContractMember2023-12-310000715957d:ImpairmentOfAssetsAndOtherChargesBenefitsMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembersrt:MinimumMember2023-01-012023-12-310000715957us-gaap:CommodityContractMember2022-01-012022-12-310000715957d:ResidentialMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957us-gaap:DomesticCountryMemberd:FederalProductionAndOtherCreditsMemberus-gaap:LatestTaxYearMember2023-01-012023-12-310000715957d:SCANAMemberus-gaap:SegmentContinuingOperationsMember2021-01-012021-12-310000715957us-gaap:ElectricityUsRegulatedMemberd:CommercialMember2022-01-012022-12-310000715957d:AcquisitionOfSolarProjectHardinIIInOhioMember2023-01-012023-12-310000715957us-gaap:AdditionalPaidInCapitalMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:IntersegmentEliminationMemberd:DominionEnergyVirginiaMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957d:DominionEnergyVirginiaMember2022-01-012022-12-310000715957d:QuestarGasCompanyMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DerivativeLiabilitiesMember2022-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:DominionEnergyMember2023-12-310000715957d:FederalProductionAndOtherCreditsMemberus-gaap:DomesticCountryMember2023-12-310000715957us-gaap:CorporateAndOtherMemberus-gaap:CaliforniaFranchiseTaxBoardMember2023-01-012023-03-310000715957us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:AshpondAndLandfillClosureCostMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:ContractedEnergyMember2023-12-310000715957srt:MinimumMemberd:NonregulatedGenerationNuclearMember2023-12-310000715957d:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2022-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:SurrySwitchingStationTransmissionLineMember2013-11-012013-11-300000715957d:EliminationsAndReconcilingItemsMember2022-01-012022-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:DominionEnergyMemberd:GeneralCorporatePurposesMember2022-06-012022-06-300000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:PrivateEquityFundsMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommonStockMember2023-12-310000715957us-gaap:RevenueSubjectToRefundMember2022-12-310000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-01-012023-03-310000715957us-gaap:LatestTaxYearMemberus-gaap:StateAndLocalJurisdictionMember2023-01-012023-12-310000715957us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2022-12-310000715957d:PsncMemberd:EnbridgeMember2023-12-310000715957d:DeferredCostOfFuelUsedInElectricGenerationMember2022-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMember2018-06-012018-06-300000715957us-gaap:EnvironmentalRestorationCostsMember2023-12-310000715957us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-310000715957us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:NondesignatedMemberd:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMember2021-01-012021-12-310000715957d:SummerUnitMember2023-12-310000715957d:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:UnsecuredSeniorNotesOnePointFourFivePercentToSevenPointZeroPercentDueTwoThousandTwentyThreeToTwoThousandFiftyTwoMemberus-gaap:SeniorNotesMember2023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957d:QuestarGasAndWexproMemberd:EnbridgeMember2022-01-012022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:CommercialMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957srt:MaximumMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-01-012023-12-310000715957us-gaap:CorporateDebtSecuritiesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957d:DeferredEarlyPlantRetirementChargesMember2022-12-310000715957d:OtherRegulatedRevenuesMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:HedgeFundsMember2023-12-310000715957d:AlternativeRevenueProgramsMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957srt:MaximumMembersrt:ScenarioForecastMember2024-02-012024-02-290000715957srt:MaximumMemberus-gaap:ElectricityMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:DominionCovePointLNGLPMember2022-01-012022-12-310000715957us-gaap:DomesticCountryMember2023-12-310000715957d:VariousProgramsMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:GovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:InterestRateHedgesMember2022-12-310000715957d:RemainingUtilityPropertyTransferredMemberus-gaap:CorporateAndOtherMemberus-gaap:CaliforniaFranchiseTaxBoardMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:GasTransmissionMember2023-01-012023-12-310000715957d:AcquisitionOfSolarProjectAtSchoolsInVirginiaMember2023-01-012023-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957d:PsncMemberd:EnbridgeMember2023-01-012023-12-310000715957us-gaap:InterestRateSwapMemberd:VirginiaElectricAndPowerCompanyMember2020-08-012020-08-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-03-310000715957d:ElectricFuelAndOtherEnergyRelatedPurchasesMemberus-gaap:NondesignatedMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957us-gaap:IntersegmentEliminationMemberd:DominionEnergySouthCarolinaMember2021-01-012021-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:UtilityTaxExemptLoanThreePointSixTwoFiveAndFourPercentDue2028To2033Memberd:TaxExemptFinancingMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957srt:MaximumMemberd:SalesAgencyAgreementsToEffectSalesUnderAtMarketProgramMember2020-08-012020-08-310000715957country:US2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2023-12-310000715957us-gaap:ElectricDistributionMember2022-01-012022-12-310000715957us-gaap:RestrictedStockMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMemberd:SeniorSecuredDeferredFuelCostBondsDueInMayTwothousandTwentyNineMember2024-02-290000715957srt:MaximumMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:OtherSalesMemberd:NonregulatedSolarAssetsMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:FixedPriceElectricityCurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:SeriesCPreferredStockMember2022-01-012022-03-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957us-gaap:CommodityContractMember2022-12-310000715957d:FixedPriceNaturalGasCurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:SeriesCPreferredStockMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:CashEquivalentsAndOtherInvestmentMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2023-05-012023-05-310000715957d:OtherRegulatedRevenuesMember2021-01-012021-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-01-012023-01-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:OhioRegulationMemberd:BaseRateCaseMember2023-10-012023-10-310000715957d:WranglerRetailGasHoldingsLLCMember2021-01-012021-12-310000715957us-gaap:NondesignatedMemberus-gaap:SalesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957us-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310000715957d:QuestarGasAndWexproMemberd:EnbridgeMember2023-12-310000715957d:FiniteLivedEquityMethodInvestmentBasisDifferenceMember2022-12-310000715957d:QPipeGroupMemberd:DominionEnergyGasHoldingsLLCMember2021-01-012021-12-310000715957us-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMemberd:CreditFacilityMaturingInJulyTwoThousandTwentyFourMember2023-07-012023-07-310000715957d:BirdseyeMember2021-05-310000715957d:VirginiaElectricAndPowerCompanyMember2023-10-012023-12-310000715957srt:MaximumMemberus-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-04-012023-06-300000715957d:FloatingRateDemandNotesMemberd:ShelfRegistrationForSaleOfDemandNotesMember2017-11-300000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:ImpairmentOfAssetsAndOtherChargesMember2022-01-012022-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957stpr:UT2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMemberd:CvowCommercialProjectExcludingFinancingCostsConditionTwoMember2024-02-012024-02-290000715957d:RenewableEnergyInvestmentTaxCreditsMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:OtherRegulatedRevenuesMember2022-01-012022-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-3100007159572023-01-012023-03-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberus-gaap:GeneralPartnerMember2020-07-310000715957d:DominionEnergyVirginiaMember2022-10-012022-12-310000715957d:CorporateDebtFixedIncomeSecuritiesMember2022-12-310000715957srt:MaximumMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-01-012022-12-310000715957us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ForeignExchangeNonCurrentDerivativeContractMember2023-12-310000715957us-gaap:FixedIncomeFundsMember2023-12-310000715957d:CreditFacilityMaturingInJuneTwoThousandTwentyTwoMemberus-gaap:LetterOfCreditMember2022-12-310000715957srt:ConsolidationEliminationsMember2022-01-012022-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:DominionEnergyMemberd:EnvironmentalSustainabilityAndSocialInvestmentInitiativesMember2022-01-012022-12-310000715957d:InflationReductionActMembersrt:MinimumMember2022-08-012022-08-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2022-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CashFlowHedgingMember2023-01-012023-12-310000715957d:VariousProgramsMember2021-01-012021-12-310000715957d:EastOhioPsncAndQuestarGasMemberd:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2023-12-310000715957d:EastOhioMemberd:EnbridgeMember2023-01-012023-12-310000715957country:US2022-12-310000715957us-gaap:IntersegmentEliminationMember2021-01-012021-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:DominionCovePointLNGLPMember2023-01-012023-12-310000715957us-gaap:ElectricityMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:RestrictedStockMember2023-01-012023-12-310000715957d:DominionEnergySouthCarolinaIncMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:FixedPriceNaturalGasCurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:NuclearPlantMemberd:SecondaryFinancialProtectionProgramMember2023-12-012023-12-310000715957us-gaap:InterestRateSwapMember2020-06-012020-06-300000715957d:ImpairmentOfAssetsAndOtherChargesMemberd:GridTransformationAndSecurityActMemberd:VirginiaElectricAndPowerCompanyMember2020-01-012020-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMember2022-12-310000715957d:PowerPurchaseArrangementMember2021-01-012021-12-310000715957us-gaap:EstimateOfFairValueFairValueDisclosureMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957srt:MaximumMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2022-05-012022-05-310000715957d:EliminationsAndReconcilingItemsMember2023-01-012023-12-310000715957us-gaap:SeriesBPreferredStockMember2023-04-012023-06-300000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMember2020-12-012020-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:OtherPlantInServiceMember2021-01-012021-12-310000715957us-gaap:LongTermDebtMember2022-12-310000715957d:UllicoIncorMember2022-02-022022-02-020000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:SubsequentEventMember2024-02-012024-02-290000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310000715957us-gaap:MaterialReconcilingItemsMember2023-12-310000715957d:OtherNonregulatedRevenuesMember2023-01-012023-12-310000715957us-gaap:SeriesAPreferredStockMember2022-01-012022-03-310000715957us-gaap:CorporateDebtSecuritiesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957d:TransmissionLineFromSkiffesCreekSwitchingStationToWheatonSubstationMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2013-11-012013-11-300000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMemberd:OtherOperationAndMaintenanceMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957d:InterestRateHedgesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:GasTransmissionMember2023-01-012023-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMember2019-06-140000715957d:RenewableEnergyInvestmentTaxCreditsMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:StateAndLocalJurisdictionMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:EnvironmentalRestorationCostsMember2023-12-310000715957us-gaap:SeriesAPreferredStockMember2023-01-012023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:EastOhioMemberd:EnbridgeMember2023-12-3100007159572023-06-300000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957us-gaap:DiscontinuedOperationsHeldforsaleMember2022-12-310000715957d:ProposedFirstOptionToRecoverFuelCostsMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2023-05-012023-05-310000715957us-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:PsncMemberd:EnbridgeMember2023-09-300000715957d:AshpondAndLandfillClosureCostMember2023-01-012023-12-310000715957us-gaap:MaterialReconcilingItemsMember2022-01-012022-12-310000715957srt:MaximumMemberd:NonregulatedGenerationNuclearMember2023-12-310000715957us-gaap:EquityMethodInvesteeMemberd:DominionCovePointLNGLPMemberd:GuaranteesWithNoMaximumLimitMember2023-01-012023-12-310000715957us-gaap:NondesignatedMember2023-12-310000715957d:SeniorNotesDueInTwoThousandThirtyFourMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:SubsequentEventMember2024-01-310000715957srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-12-310000715957d:SBLHoldcoMember2021-01-012021-12-310000715957d:AcquisitionOfSolarProjectBedfordInVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMembersrt:MinimumMemberd:CleanWaterActMember2020-10-012020-10-310000715957d:ResidentialMemberd:RegulatedGasSalesMember2022-01-012022-12-310000715957d:UnsecuredSeniorNotesTwoPointThreeZeroPercentToEightPointEightSevenFivePercentDueTwoThousandTwentyThreeToTwoThousandFiftyThreeMemberus-gaap:SeniorNotesMember2022-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaMember2023-01-012023-12-310000715957d:ConstructNewMarsAndWishingStarSubstationsTransmissionLinesAndRelatedProjectsInLoudounCountyVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:PsncMemberd:EnbridgeMember2022-12-310000715957d:GencoVariableRateDue2038Memberd:TaxExemptFinancingMember2022-12-310000715957us-gaap:PropertyPlantAndEquipmentMember2023-12-310000715957us-gaap:ParentMember2021-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderWMember2023-01-012023-12-310000715957d:DominionEnergySouthCarolinaIncMember2023-03-012023-03-310000715957d:DominionEnergyMember2022-01-012022-12-310000715957us-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:GasTransmissionMember2021-01-012021-12-310000715957us-gaap:OtherThanSecuritiesInvestmentMember2023-12-310000715957d:NonregulatedElectricitySalesMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:CorporateDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:BiennialReviewMemberd:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMember2023-01-012024-12-310000715957us-gaap:EquityMethodInvesteeMemberd:DominionCovePointLNGLPMemberd:GuaranteesWithNoMaximumLimitMember2023-12-310000715957d:UnsecuredSeniorNotesThreePointOneZeroToSevenPointFourFivePercentDueTwoThousandTwentySixToTwoThousandFiftyThreeMemberd:PsncMember2023-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CashFlowHedgingMember2021-01-012021-12-310000715957us-gaap:FairValueMeasurementsRecurringMemberd:GovernmentDebtSecuritiesMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:SmallScaleSolarMemberd:EndOfYearTwoThousandThirtyFiveMember2020-04-012020-04-300000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderEOneMember2023-01-012023-12-310000715957d:QuestarGasAndWexproMemberus-gaap:GasGatheringAndProcessingEquipmentMemberd:WexproMember2021-11-012021-11-300000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:ElectricDSMProgramsMemberus-gaap:SubsequentEventMember2024-01-012024-01-310000715957us-gaap:FinancialGuaranteeMemberus-gaap:EquityMethodInvesteeMemberd:DominionCovePointLNGLPMember2023-01-012023-12-310000715957d:DerivativeLiabilitiesMember2023-12-310000715957d:SouthCarolinaGeneratingCompanyIncMember2023-03-012023-03-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DerivativeAssetsMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaIncMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMembercountry:US2023-01-012023-12-310000715957d:DeferredRiderCostsForVirginiaElectricUtilityMember2023-12-310000715957d:CurrentAssetsHeldForSaleMember2020-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:HedgeFundsMember2022-12-310000715957us-gaap:DeferredIncomeTaxChargesMember2022-12-310000715957d:AcquisitionOfSolarProjectHardinIInOhioMember2020-12-012020-12-310000715957us-gaap:SeriesBPreferredStockMember2019-12-310000715957us-gaap:IntersegmentEliminationMemberd:DominionEnergySouthCarolinaMember2022-01-012022-12-310000715957us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberd:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMember2023-01-012023-12-310000715957d:OtherCurrentLiabilitiesAndOtherDeferredCreditsAndOtherLiabilitiesMember2023-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityOneMember2023-07-310000715957d:AmountsAssociatedWithDominionPensionPlanMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310000715957srt:MaximumMemberus-gaap:LetterOfCreditMember2023-02-280000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2022-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:DominionEnergyMemberd:GeneralCorporatePurposesMember2023-09-012023-09-300000715957d:VirginiaElectricAndPowerCompanyMemberd:RevisionOfEstimatedUsefulLifeMember2022-01-012022-01-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommonStockMember2022-12-310000715957d:CurrentAssetsHeldForSaleMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-03-012023-03-310000715957d:VirginiaElectricAndPowerCompanyMemberd:AshpondAndLandfillClosureCostMember2022-12-310000715957us-gaap:ComputerSoftwareIntangibleAssetMember2023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:NonregulatedSolarAssetsMember2023-12-310000715957us-gaap:CashFlowHedgingMember2022-01-012022-12-310000715957d:AlternativeRevenueProgramsMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957us-gaap:RestrictedStockMember2022-01-012022-12-310000715957d:IncomeLossFromDiscontinuedOperationsMember2021-01-012021-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembersrt:MinimumMember2023-12-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:ComputerSoftwareIntangibleAssetMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:UtilityScaleSolarMember2022-10-012022-10-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCommonCollectiveTrustMember2023-12-310000715957us-gaap:OtherRegulatoryAssetsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberd:CashEquivalentsAndOtherInvestmentMember2023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:MillstonePowerStationMember2022-01-012022-12-310000715957d:OtherNonregulatedRevenuesMember2021-01-012021-12-310000715957d:CorporateDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:WholesaleMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2022-12-310000715957us-gaap:SeriesCPreferredStockMemberd:DominionEnergyMember2022-12-310000715957d:CorporateDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMemberd:DESCMemberus-gaap:CommonStockMember2021-08-012021-08-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:InvestmentAndOtherCreditMemberus-gaap:EarliestTaxYearMemberus-gaap:StateAndLocalJurisdictionMember2023-01-012023-12-310000715957d:FourBrothersAndThreeCedarsMemberd:ClearwayEnergyIncMember2021-08-310000715957us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2023-12-310000715957us-gaap:CommodityContractMember2023-12-310000715957srt:ConsolidationEliminationsMember2021-01-012021-12-310000715957d:MonetizationOfGuaranteeSettlementMember2023-12-310000715957us-gaap:DomesticCountryMemberus-gaap:InvestmentCreditMemberus-gaap:LatestTaxYearMember2023-01-012023-12-310000715957d:CovePointMember2022-12-310000715957us-gaap:DiscontinuedOperationsHeldforsaleMemberd:CurrentAssetsHeldForSaleMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMembersrt:MinimumMember2024-02-290000715957d:CVOWCommercialProjectMemberd:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMembersrt:MinimumMember2024-02-012024-02-290000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2022-12-310000715957d:CVOWCommercialProjectMemberd:VirginiaPowerAndStonepeakMembersrt:ScenarioForecastMember2024-02-012024-02-290000715957us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-01-012022-12-310000715957us-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:OhioRegulationMemberd:CapitalExpenditureProgramMember2023-01-012023-12-310000715957d:EuropeanMutualAssociationMemberd:NonNuclearObligationMemberd:DESCMember2023-12-310000715957us-gaap:CommonStockMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:DSMRidersMember2023-01-012023-12-310000715957d:NewCorporateOfficeMemberd:LessorMemberd:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember2021-01-012021-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommonStockMember2023-10-012023-12-310000715957d:CreditFacilityMaturingInJuneTwoThousandTwentyTwoMemberus-gaap:LetterOfCreditMember2023-12-310000715957d:CovePointMemberd:LimitedPartnershipInterestMember2023-09-300000715957us-gaap:AdditionalPaidInCapitalMemberd:VirginiaElectricAndPowerCompanyMember2021-12-310000715957us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310000715957us-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:OtherDebtMemberd:TaxExemptFinancingMember2023-12-310000715957d:NorthAnnaPowerStationMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaMember2022-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommonStockMember2021-12-310000715957us-gaap:RestrictedStockMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:RelatedPartyMember2021-01-012021-12-310000715957d:IndustrialMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2021-01-012021-12-310000715957srt:MinimumMembersrt:ScenarioForecastMemberd:StonepeakMember2024-02-290000715957d:DominionEnergyKewauneeIncMember2023-01-012023-12-310000715957us-gaap:LetterOfCreditMember2023-03-310000715957us-gaap:OperatingSegmentsMember2023-12-310000715957us-gaap:GasTransmissionMember2021-01-012021-12-310000715957d:OhioRegulationMemberd:PipelineInfrastructureReplacementProgramMember2022-12-310000715957d:OtherInvestmentMember2023-01-012023-12-310000715957us-gaap:NondesignatedMemberd:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957d:DeferredRiderCostsForVirginiaElectricUtilityMember2022-12-310000715957d:InsuranceContractsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:VirginiaRegulationMember2021-01-012021-12-310000715957us-gaap:SegmentDiscontinuedOperationsMember2022-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957us-gaap:SeriesCPreferredStockMemberd:DominionEnergyMember2023-01-012023-12-310000715957us-gaap:SeriesCPreferredStockMember2023-10-012023-12-310000715957us-gaap:LetterOfCreditMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:AcquisitionOfSolarProjectFtPowhatanInVirginiaMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957d:OtherCurrentLiabilitiesAndOtherDeferredCreditsAndOtherLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957srt:MinimumMember2023-12-310000715957d:DominionEnergyServicesIncMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:RelatedPartyMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:FinancialStandbyLetterOfCreditMember2023-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:DeferredRiderCostsForVirginiaElectricUtilityMemberus-gaap:OperatingSegmentsMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergyVirginiaMember2021-12-310000715957d:OhioRegulationMemberd:CapitalExpenditureProgramMember2011-12-012011-12-310000715957d:QuestarGasCompanyMemberd:UtahRegulationMember2023-12-012023-12-310000715957us-gaap:SeriesAPreferredStockMember2022-01-012022-12-310000715957d:AccumulatedOtherThanTemporaryImpairmentsMember2022-01-012022-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:NaturalGasBaseRateMember2023-03-012023-03-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderRPSOneMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:DSMRidersOneMemberd:EnergyEfficiencyProgramMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:PriceVolatilityMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:CarbonRegulationsMember2016-08-012016-08-310000715957us-gaap:ElectricityMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberd:CovePointMember2020-11-300000715957srt:MaximumMemberus-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:PriceVolatilityMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957d:VirginiaRegulationMemberd:SecuritizationOptionMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2023-05-012023-05-310000715957srt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:CommodityContractMember2021-01-012021-12-310000715957d:SustainabilityRevolvingCreditAgreementVariableRateDueTwoThousandTwentyFourMember2023-12-310000715957us-gaap:RetainedEarningsMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-12-310000715957us-gaap:RetainedEarningsMember2023-01-012023-12-310000715957d:FixedPriceNaturalGasNoncurrentDerivativeContractMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:TargetedToReachByEndOfYearFiveMember2020-04-012020-04-300000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:ContractedEnergyMember2022-01-012022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembersrt:MinimumMember2022-01-012022-12-310000715957us-gaap:OperatingSegmentsMemberd:ContractedEnergyMember2023-01-012023-12-310000715957us-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:OtherTransmissionProjectsApprovedMember2023-12-310000715957us-gaap:JuniorSubordinatedDebtMember2016-07-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:FormerGasPlantSiteWithPostClosureGroundwaterMonitoringProgramMemberd:WasteManagementAndRemediationMember2022-01-012022-12-310000715957d:AdditionalGuaranteesMember2023-12-310000715957us-gaap:OperatingSegmentsMember2022-01-012022-12-310000715957us-gaap:DomesticCountryMemberd:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMember2022-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957us-gaap:OtherRegulatoryAssetsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:ConstructNewTransmissionLinesAndConvertJeffressSwitchingStationInMecklenburgCountyVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:AtlanticCoastPipelineLLCMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:GovernmentAndOtherRetailMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:InflationReductionActMember2022-08-012022-08-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:GovernmentDebtSecuritiesMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMemberus-gaap:CommonStockMember2019-06-140000715957us-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel1Membercountry:USus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957d:InsuranceContractsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:OverTheCounterMember2022-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:InvestmentsMeasuredAtFairValueIncludingExcludingPendingPurchasesSalesAndAccruedIncomeMember2022-12-310000715957us-gaap:DefinedBenefitPostretirementHealthCoverageMemberd:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMemberd:AmountsAssociatedWithDominionRetireeHealthAndWelfarePlanMember2022-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberd:DominionCovePointLNGLPMember2023-07-012023-07-310000715957us-gaap:NondesignatedMemberus-gaap:SalesMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:NondesignatedMemberus-gaap:SalesMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957d:AccumulatedOtherThanTemporaryImpairmentsMember2021-12-310000715957srt:MaximumMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMember2022-09-012022-09-300000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310000715957us-gaap:SeriesCPreferredStockMember2023-01-012023-03-310000715957d:VirginiaElectricAndPowerCompanyMember2022-04-012022-06-300000715957d:InvestmentAndOtherCreditMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:StateAndLocalJurisdictionMember2023-12-310000715957us-gaap:DomesticCountryMemberd:FederalProductionAndOtherCreditsMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:DeferredNuclearRefuelingOutageCostsMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMember2022-01-310000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberd:PsncMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:NondesignatedMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CashFlowHedgingMember2023-01-012023-12-310000715957d:SummerUnitMember2021-01-012021-12-310000715957us-gaap:UnsecuredDebtMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2023-12-310000715957d:OtherMemberd:RegulatedGasSalesMember2021-01-012021-12-310000715957d:CVOWCommercialProjectMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:DominionEnergyMemberus-gaap:SeriesBPreferredStockMember2021-01-012021-12-310000715957us-gaap:DefinedBenefitPostretirementHealthCoverageMemberd:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMemberd:AmountsAssociatedWithDominionRetireeHealthAndWelfarePlanMember2023-12-310000715957d:InterestRateHedgesMember2023-12-310000715957us-gaap:CashFlowHedgingMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957us-gaap:LetterOfCreditMemberd:CreditFacilityMaturingInJuneTwoThousandFourMember2023-03-012023-03-310000715957us-gaap:PreferredStockMember2020-12-310000715957d:DominionEnergyMemberus-gaap:SeriesBPreferredStockMember2022-12-310000715957d:ElectricTransmissionProjectMemberd:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMember2023-03-012023-03-310000715957d:OtherDeferredCreditsAndOtherLiabilitiesMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:OperatingRevenueMember2021-01-012021-12-310000715957us-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:NonregulatedSolarAssetsMember2023-01-012023-12-310000715957d:EnbridgeMemberd:EastOhioMember2021-01-012021-12-310000715957us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMemberus-gaap:SeriesAPreferredStockMember2022-09-012022-09-010000715957d:OtherRegulatedRevenuesMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:ElectricDistributionMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957d:DominionEnergyVirginiaMember2022-02-280000715957d:InvestmentAndOtherCreditMemberus-gaap:LatestTaxYearMemberus-gaap:StateAndLocalJurisdictionMember2023-01-012023-12-310000715957d:DominionCovePointLNGLPMember2023-01-012023-12-310000715957us-gaap:PensionPlansDefinedBenefitMember2024-12-310000715957us-gaap:IntersegmentEliminationMemberd:DominionEnergySouthCarolinaMember2023-01-012023-12-310000715957d:TradingAccountAssetMember2022-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:RegulatoryAssetAssociatedWithEarlyRetirementsMember2021-01-012021-12-310000715957srt:ScenarioForecastMemberd:CvowCommercialProjectExcludingFinancingCostsMember2024-02-290000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMemberd:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2022-12-310000715957d:PensionPlansAndOtherPostRetirementBenefitPlanMember2022-01-012022-12-310000715957d:RegulatedGasTransportationAndStorageMember2022-01-012022-12-310000715957us-gaap:ElectricDistributionMember2021-01-012021-12-310000715957d:OtherNonregulatedRevenuesMember2022-01-012022-12-310000715957us-gaap:InterestRateSwapMember2020-08-310000715957d:QuestarGasAndWexproMemberd:EnbridgeMember2021-01-012021-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMember2019-06-300000715957d:AtlanticCoastPipelineLLCMember2021-01-012021-12-310000715957srt:MaximumMemberd:UnsecuredSeniorNotesOnePointThreeZeroPercentToSixPointThreeEightPercentDueTwoThousandTwentyFiveToTwoThousandFiftyTwoMemberd:EastOhioMember2023-12-310000715957d:RenewableEnergyInvestmentTaxCreditsMember2022-01-012022-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:SeriesBPreferredStockMember2022-07-012022-09-300000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:PrivateEquityFundsMember2023-12-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-3100007159572023-07-012023-09-300000715957us-gaap:AdditionalPaidInCapitalMemberd:VirginiaElectricAndPowerCompanyMember2020-12-310000715957us-gaap:CashFlowHedgingMember2021-01-012021-12-310000715957us-gaap:CommodityContractMemberus-gaap:OverTheCounterMember2023-12-310000715957d:WranglerRetailGasHoldingsLLCMember2019-01-012019-12-310000715957d:HeldForSaleMember2023-12-310000715957d:EastOhioPsncAndQuestarGasMemberd:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2023-12-310000715957d:RiderGTMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderRPSMember2023-01-012023-12-310000715957us-gaap:ForeignExchangeContractMemberus-gaap:OverTheCounterMember2023-12-310000715957d:DeferredRiderCostsForVirginiaElectricUtilityMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-3100007159572021-01-012021-01-010000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:BaseRateCaseMember2023-05-012023-05-310000715957us-gaap:SegmentDiscontinuedOperationsMember2021-01-012021-12-310000715957d:TaxExemptDebtMember2023-12-310000715957d:AcquisitionOfSolarProjectAtlantaFarmsInOhioMember2023-01-012023-12-310000715957d:UnsecuredSeniorNotesTwoPointThreeZeroPercentToEightPointEightSevenFivePercentDueTwoThousandTwentyThreeToTwoThousandFiftyThreeMemberus-gaap:SeniorNotesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2022-12-310000715957d:QuestarGasAndWexproMemberd:EnbridgeMember2023-12-012023-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMember2022-12-310000715957d:AmountsAssociatedWithDominionPensionPlanMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:PensionPlansDefinedBenefitMembersrt:AffiliatedEntityMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ShortTermBorrowingArrangementsMemberus-gaap:PrincipalOwnerMember2023-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMember2021-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberd:PriceVolatilityMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957d:CVOWCommercialProjectMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:PreferredStockMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ShortTermBorrowingArrangementsMemberus-gaap:PrincipalOwnerMember2022-12-310000715957us-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:DESCMembersrt:MinimumMemberd:FirstMortgageBondsThreePointTwoTwoToSixPointDue2028To2065Member2023-12-310000715957us-gaap:RestrictedStockMember2021-12-310000715957d:OhioRegulationMembersrt:ScenarioForecastMemberd:UEXRiderMember2023-04-012024-03-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMemberd:SeniorSecuredDeferredFuelCostBondsDueInMayTwoThousandThirtyThreeMember2024-02-290000715957d:AlternativeRevenueProgramsMember2022-01-012022-12-310000715957us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:DeferredRiderCostsForVirginiaElectricUtilityMemberus-gaap:OperatingSegmentsMemberd:DominionEnergyVirginiaMember2023-01-012023-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:NaturalGasBaseRateMember2022-03-012022-03-310000715957us-gaap:JuniorSubordinatedDebtMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:MinimumMember2023-01-012023-12-310000715957d:ConstructDavesStoreTransmissionLineExtensionInPrinceWilliamCountyVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:NondesignatedMemberus-gaap:SalesMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957d:ElectricFuelAndOtherEnergyRelatedPurchasesMemberus-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:AROsAndRelatedFundingMember2023-12-3100007159572023-09-300000715957us-gaap:CommonStockMember2022-12-3100007159572022-01-012022-03-310000715957d:RebuildOfLines2019And2007InTheCityOfVirginiaBeachVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-01-012022-12-310000715957srt:OfficerMemberd:GrantDateThreeMemberd:February2020CashBasedPerformanceGrantMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:ConstructNewGermannaSubstationTransmissionLineAndRelatedProjectsInCulpeperCountyVirginiaMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberd:RiderT1Memberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:DECPHoldingsMemberd:UnsecuredSeniorNotesVariableRateDueTwoThousandTwentyFourMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMember2023-12-310000715957us-gaap:PensionPlansDefinedBenefitMembersrt:MinimumMember2023-12-310000715957us-gaap:ShortTermDebtMember2023-12-310000715957us-gaap:PropertyPlantAndEquipmentMember2022-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergyVirginiaMember2023-01-012023-12-310000715957d:BathCountryPumpedStorageStationMember2023-12-310000715957d:SustainabilityRevolvingCreditFacilityMemberd:DominionEnergyMemberd:GeneralCorporatePurposesMember2023-04-012023-04-300000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FixedIncomeFundsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:ElectricDSMProgramsMember2023-01-012023-01-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMember2021-01-012021-01-010000715957us-gaap:ShortTermDebtMember2022-12-310000715957d:EnergyStorageMemberd:VirginiaElectricAndPowerCompanyMember2022-10-012022-10-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:DSMRidersOneMember2023-01-012023-12-310000715957d:SouthCarolinaRegulationMemberd:ElectricBaseRateCaseMember2021-12-310000715957d:EastOhioMemberd:EnbridgeMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-12-310000715957d:DominionEnergyServicesIncMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanRealEstateMember2022-12-310000715957d:ConstructNewCirrusAndKeyserSwitchingStationsTransmissionLinesAndRelatedProjectsInCulpeperVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:ElectricityGenerationPlantNonNuclearMember2021-01-012021-12-310000715957d:UtilityTaxExemptLoanThreePointEightPercentDue2033Member2023-12-310000715957d:EastOhioPsncAndQuestarGasMemberd:GasTransmissionAndStorageMemberd:DominionCovePointLNGLPMember2023-09-300000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberd:VirginiaElectricAndPowerCompanyMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-01-012023-01-310000715957srt:MaximumMemberd:AshPondAndLandfillClosureCostsMember2023-01-012023-12-310000715957d:EnhancedJuniorSubordinatedNotesFivePointSevenFivePercentDueTwoThousandFiftyFourMemberd:EnhancedJuniorSubordinatedNotesMember2022-12-310000715957d:PowerPurchaseArrangementMember2023-12-310000715957us-gaap:NondesignatedMember2022-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2023-05-012023-05-310000715957d:DominionEnergyRetireeHealthAndWelfarePlanMemberd:OtherOperationsAndMaintenanceExpenseMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:ConstructNewMarsAndWishingStarSubstationsTransmissionLinesAndRelatedProjectsInLoudounCountyVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:TrustForBenefitOfEmployeesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957d:CorporateDebtFixedIncomeSecuritiesMember2022-01-012022-12-310000715957srt:ScenarioForecastMemberus-gaap:SeriesBPreferredStockMember2024-12-150000715957us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:PsncMemberd:EnbridgeMember2022-01-012022-12-310000715957us-gaap:InterestRateContractMember2023-01-012023-12-310000715957srt:OfficeBuildingMember2023-01-012023-12-310000715957d:AcquisitionOfSolarProjectFoxhoundInVirginiaMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:OtherPlantInServiceMember2022-01-012022-12-310000715957d:AcquisitionOfSolarProjectRochambeauInVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ImpairmentOfAssetsAndOtherChargesMemberd:VirginiaElectricAndPowerCompanyMember2022-04-012022-06-300000715957us-gaap:OtherPlantInServiceMember2021-01-012021-12-310000715957d:DominionEnergyVirginiaMember2023-12-310000715957us-gaap:NondesignatedMember2023-01-012023-12-310000715957us-gaap:TrustForBenefitOfEmployeesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FixedIncomeSecuritiesMember2023-01-012023-12-310000715957srt:MaximumMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:DSMRidersOneMember2023-01-012023-12-310000715957us-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:UtilityScaleSolarMember2023-10-012023-10-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:FourBrothersAndThreeCedarsMember2023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMember2022-01-012022-12-310000715957us-gaap:NondesignatedMemberus-gaap:CommodityContractMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DominionEnergyVirginiaMember2021-01-012021-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberus-gaap:LimitedPartnerMember2020-07-310000715957d:DVirginiaElectricAndPowerCompanyMemberd:DCostOfLandfillsAndBeneficialReuseMember2023-01-012023-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:ElectricOtherMember2023-04-012023-04-300000715957d:UtilityPropertyMember2023-01-012023-12-310000715957d:OtherLiabilitiesCurrentMember2022-12-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2023-04-012023-04-300000715957d:RenewableEnergyInvestmentTaxCreditsMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:LetterOfCreditMemberd:CreditFacilityMaturingInJanuaryTwoThousandTwentySixMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-01-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMemberus-gaap:StateAndLocalJurisdictionMember2023-12-310000715957us-gaap:CommonStockMember2022-01-012022-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:RelatedPartyMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityGenerationPlantNonNuclearMember2021-01-012021-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:BaseRateCaseMember2021-10-012021-10-310000715957us-gaap:FairValueInputsLevel3Membersrt:OfficeBuildingMember2021-12-310000715957us-gaap:CorporateAndOtherMemberus-gaap:CaliforniaFranchiseTaxBoardMemberd:UtilityPropertyTransferredMember2023-01-012023-12-310000715957d:ImpairmentOfAssetsAndOtherChargesBenefitsMemberd:SouthCarolinaRegulationMemberd:ElectricBaseRateCaseMember2021-01-012021-12-310000715957d:QuestarGasAndWexproMembersrt:MaximumMemberd:UnsecuredSeniorAndMediumTermNotesTwoPointNineEightPercentToSevenPointTwoZeroPercentDueToMember2023-12-310000715957us-gaap:EquitySecuritiesMembercountry:USus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957d:RenewableEnergyInvestmentTaxCreditsMember2021-01-012021-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:EastOhioPsncAndQuestarGasMemberd:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2022-12-310000715957country:US2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:BaseRateCaseMember2023-07-012023-07-310000715957srt:MaximumMemberd:UnsecuredSeniorNotesOnePointFourFivePercentToSevenPointZeroPercentDueTwoThousandTwentyThreeToTwoThousandFiftyTwoMemberus-gaap:SeniorNotesMember2023-12-310000715957d:EastOhioPsncAndQuestarGasMember2022-01-012022-12-310000715957d:TriennialReviewMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012022-12-310000715957d:DominionEnergyDirectMember2023-01-012023-12-310000715957d:ResidentialMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957us-gaap:RetainedEarningsMemberd:VirginiaElectricAndPowerCompanyMember2021-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957us-gaap:SeriesCPreferredStockMemberd:DominionEnergyMember2021-12-012021-12-310000715957d:OhioRegulationMemberd:UEXRiderMember2023-01-012023-12-310000715957d:DVirginiaElectricAndPowerCompanyMemberd:DCostOfLandfillsAndBeneficialReuseMember2022-01-012022-12-310000715957d:RiderCETwoMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ResidentialMemberd:RegulatedGasSalesMember2023-01-012023-12-310000715957srt:MaximumMemberus-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-01-012023-03-310000715957d:FinancialTransmissionRightsElectricityNoncurrentDerivativeContractMember2023-01-012023-12-310000715957us-gaap:SegmentContinuingOperationsMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:EnvironmentalProtectionAgencyAndStateRegulatoryAgenciesMember2023-01-012023-12-310000715957d:CurrentAssetsHeldForSaleMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DominionEnergyVirginiaMember2022-12-310000715957us-gaap:NondesignatedMemberd:ElectricFuelAndOtherEnergyRelatedPurchasesMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:TrustForBenefitOfEmployeesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FixedIncomeSecuritiesMember2022-01-012022-12-310000715957us-gaap:DiscontinuedOperationsHeldforsaleMemberd:CurrentAssetsHeldForSaleMember2022-12-310000715957us-gaap:InterestRateContractMemberus-gaap:NondesignatedMemberd:InterestAndRelatedChargesMember2023-01-012023-12-310000715957srt:MaximumMemberus-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:CVOWCommercialProjectMemberd:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMember2024-02-290000715957d:NonregulatedElectricitySalesMember2023-01-012023-12-310000715957us-gaap:DiscontinuedOperationsHeldforsaleMember2023-12-310000715957us-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310000715957srt:MaximumMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:UtilityScaleSolarMemberd:EndOfYearTwoThousandThirtyFiveMember2020-04-012020-04-300000715957d:EnergyStorageMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:EndOfYearTwoThousandThirtyFiveMember2020-04-012020-04-300000715957d:TriennialReviewMemberd:VirginiaElectricAndPowerCompanyMember2023-04-012023-04-300000715957d:DominionEnergyRetireeHealthAndWelfarePlanMemberd:OtherOperationsAndMaintenanceExpenseMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-01-012022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-12-310000715957us-gaap:SeriesCPreferredStockMemberd:DominionEnergyMember2021-01-012021-12-3100007159572021-01-012021-12-310000715957us-gaap:NondesignatedMemberd:NetIncomeLossFromDiscontinuedOperationsIncludingNoncontrollingInterestMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:SeniorNotesMemberd:UnsecuredSeniorNotesVariableRatesDueTwoThousandTwentyAndTwoThousandTwentyThreeMember2022-12-310000715957d:AtlanticCoastPipelineLLCMemberus-gaap:OtherCurrentLiabilitiesMember2022-12-310000715957d:OtherOperationsAndMaintenanceExpenseMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel3Membersrt:OfficeBuildingMember2023-12-310000715957d:CorporateDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957srt:MaximumMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957srt:MaximumMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:DominionEnergyMemberus-gaap:SeriesBPreferredStockMember2023-12-310000715957d:InsuranceContractsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:SurryAndNorthAnnaMember2023-01-012023-12-310000715957d:OtherRegulatedRevenuesMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957us-gaap:ElectricityMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:DominionCovePointLNGLPMember2023-12-310000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:FinalRuleToReviseEffluentLimitationsGuidelinesForSteamElectricPowerGeneratingCategoryMemberd:CleanWaterActMember2017-04-012017-04-300000715957us-gaap:AssetRetirementObligationCostsMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:NewCorporateOfficeMemberd:LessorMembersrt:MinimumMemberd:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember2023-12-310000715957us-gaap:ExchangeTradedMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2023-12-310000715957us-gaap:NondesignatedMemberd:PurchasedGasMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957d:ConstructNewTransmissionLinesAndConvertJeffressSwitchingStationInMecklenburgCountyVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:NondesignatedMember2021-01-012021-12-310000715957d:BirdseyeAndMadisonMemberd:OtherSalesMember2023-10-012023-12-310000715957d:LessorToCompleteConstructionAndLeaseJonesActCompliantOffshoreWindInstallationVesselMember2023-01-012023-12-310000715957us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-12-310000715957d:SCANAMember2022-06-012022-06-300000715957d:DeferredNuclearRefuelingOutageCostsMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:LessorToCompleteConstructionAndLeaseJonesActCompliantOffshoreWindInstallationVesselMember2020-12-012020-12-310000715957d:VirginiaElectricAndPowerCompanyAndPublicServiceCompanyOfNorthCarolinaMember2023-01-012023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMember2023-01-012023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-06-300000715957d:WholesaleMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957us-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel1Memberd:VirginiaElectricAndPowerCompanyMembercountry:USus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:ImpairmentOfAssetsAndOtherChargesMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:DESCMemberd:FirstMortgageBondsThreePointTwoTwoToSixPointDue2028To2065Member2023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957us-gaap:ParentMember2020-12-310000715957d:ForeignExchangeCurrentDerivativeContractMember2023-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:UnsecuredSeniorNotesOnePointFourFivePercentToSevenPointZeroPercentDueTwoThousandTwentyThreeToTwoThousandFiftyTwoMemberus-gaap:SeniorNotesMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaElectricAndPowerCompanyMemberd:RiderGVOneMember2023-01-012023-12-310000715957us-gaap:SeriesBPreferredStockMember2022-10-012022-12-310000715957us-gaap:AssetRetirementObligationCostsMemberd:VirginiaElectricAndPowerCompanyMember2023-12-3100007159572023-07-310000715957d:GenerationAndDistributionServicesMember2023-07-012023-07-310000715957us-gaap:OtherCurrentLiabilitiesMember2022-12-310000715957us-gaap:JuniorSubordinatedDebtMemberd:UnsecuredJuniorSubordinatedNotesThreePointZeroSevenOneDueTwoThousandTwentyFourMember2023-12-310000715957us-gaap:CommodityContractMember2021-12-310000715957us-gaap:SegmentDiscontinuedOperationsMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberd:FirstPhaseOfNuclearLifeExtensionProgramMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:RiderSNAMember2023-01-012023-12-310000715957srt:MaximumMemberd:TwoThousandAndNineteenSeriesACorporateUnitsMember2022-05-3100007159572022-01-012022-12-310000715957d:RenewableEnergyInvestmentTaxCreditsMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957us-gaap:SeriesAPreferredStockMember2023-07-012023-09-300000715957us-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957d:DominionEnergyMemberus-gaap:SeriesBPreferredStockMember2019-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310000715957d:GasTransmissionAndStorageMemberus-gaap:SegmentDiscontinuedOperationsMember2021-01-012021-12-310000715957d:ElectricDistributionGridTransformationProjectsMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-01-012022-12-310000715957d:AshpondAndLandfillClosureCostMember2022-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMemberd:CostOfFuelMember2023-02-012023-02-280000715957d:VirginiaElectricAndPowerCompanyMemberd:DeferredCostOfFuelUsedInElectricGenerationMember2022-12-310000715957us-gaap:ParentMember2022-01-012022-12-310000715957us-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2022-01-012022-09-300000715957d:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMember2023-12-310000715957us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:ScenarioForecastMember2024-02-012024-02-290000715957d:CreditFacilitiesMaturingInDecember2021With1YearAutomaticRenewalsThrough2024Memberd:DECPHoldingsMember2023-01-012023-12-310000715957us-gaap:CreditConcentrationRiskMemberd:InvestmentGradeCounterpartyMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:SCANAMember2023-12-310000715957us-gaap:InterestRateSwapMember2020-06-300000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityGenerationPlantNonNuclearMember2023-01-012023-12-310000715957srt:MaximumMemberd:StonepeakMembersrt:ScenarioForecastMember2024-02-012024-02-290000715957d:DominionEnergyRetireeHealthAndWelfarePlanMemberd:OtherOperationsAndMaintenanceExpenseMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2023-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:GovernmentDebtSecuritiesMemberus-gaap:FixedIncomeSecuritiesMember2023-12-310000715957srt:ScenarioForecastMember2024-02-290000715957d:FederalProductionAndOtherCreditsMemberus-gaap:DomesticCountryMemberus-gaap:LatestTaxYearMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ResidentialMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:SegmentDiscontinuedOperationsMember2022-01-012022-12-310000715957d:TredegarSolarFundILlcMemberd:OtherSalesMember2022-12-310000715957d:EnhancedJuniorSubordinatedNotesMember2023-12-310000715957d:UtilityTaxExemptLoanThreePointSixTwoFiveAndFourPercentDue2028To2033Membersrt:MaximumMemberd:TaxExemptFinancingMember2023-12-310000715957us-gaap:ForeignExchangeContractMemberus-gaap:OverTheCounterMember2022-12-310000715957us-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-12-310000715957us-gaap:TrustForBenefitOfEmployeesMemberus-gaap:FixedIncomeSecuritiesMember2022-01-012022-12-310000715957d:DESCMemberd:FirstMortgageBondsThreePointTwoTwoToSixPointDue2028To2065Member2022-12-310000715957d:GovernmentAndOtherRetailMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957d:AccumulatedOtherThanTemporaryImpairmentsMember2022-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberd:UsEquitySecuritiesMember2023-12-310000715957us-gaap:NoncontrollingInterestMember2023-12-310000715957us-gaap:ForeignExchangeContractMember2022-12-310000715957us-gaap:MaterialReconcilingItemsMember2021-01-012021-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:DominionEnergyMemberus-gaap:SeriesBPreferredStockMember2019-12-012019-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:EastOhioPsncAndQuestarGasMemberd:DominionCovePointLNGLPMember2023-12-310000715957us-gaap:DomesticCountryMemberus-gaap:InvestmentCreditMemberus-gaap:LatestTaxYearMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:NondesignatedMember2022-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2023-12-310000715957d:OtherTransmissionProjectsAppliedMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:RevolvingCreditFacilityMemberd:AtlanticCoastPipelineLLCMember2017-10-310000715957d:BiennialReviewMemberd:VirginiaElectricAndPowerCompanyMember2023-04-012023-04-300000715957d:OtherNonregulatedRevenuesMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:StateCourtMergerCaseMemberd:SCANAMemberd:FederalCourtMergerCaseMember2021-06-012021-06-300000715957d:FixedPriceElectricityNoncurrentDerivativeContractMember2023-01-012023-12-310000715957d:FiniteLivedEquityMethodInvestmentBasisDifferenceMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:DominionEnergyMember2023-01-012023-12-310000715957d:FirstMortgageBondsMember2023-12-310000715957d:DominionEnergySouthCarolinaIncMemberd:DESCMemberus-gaap:CommonStockMember2021-07-012021-07-310000715957d:EastOhioPsncAndQuestarGasMemberd:DominionCovePointLNGLPMember2023-09-300000715957d:InvestmentAndOtherCreditMemberus-gaap:StateAndLocalJurisdictionMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMembersrt:MinimumMemberd:TaxExemptFinancingsZeroPointSevenFiveToOnePointNinePercentDueTwoThousandThirtyTwoToTwoThousandFortyOneMember2023-12-310000715957us-gaap:PipelinesMemberd:AtlanticCoastPipelineLLCMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberd:JointlyOwnedNaturalGasPipelineMemberus-gaap:GasDistributionMember2023-01-012023-12-310000715957d:SCANAMember2023-01-012023-12-310000715957d:InvestmentAndOtherCreditMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:StateAndLocalJurisdictionMember2023-01-012023-12-310000715957us-gaap:RetainedEarningsMember2023-12-310000715957d:DominionEnergyMemberd:LongTermDebtDueWithinOneYearMember2023-12-310000715957d:OtherCurrentLiabilitiesAndOtherDeferredCreditsAndOtherLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957d:RiderGVOneMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:SurryAndNorthAnnaMember2021-01-012021-12-310000715957us-gaap:FairValueInputsLevel1Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2023-12-310000715957d:DominionEnergyMemberus-gaap:SeriesBPreferredStockMember2023-01-012023-12-310000715957d:AcquisitionOfSolarProjectHardinIInOhioMember2023-01-012023-12-310000715957us-gaap:SeriesCPreferredStockMembersrt:ScenarioForecastMember2027-04-150000715957d:RideCEOneMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:RiderSMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:RetainedEarningsMember2022-01-012022-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCommonCollectiveTrustMember2023-12-310000715957us-gaap:OtherCurrentLiabilitiesMemberd:SCANAMember2022-12-310000715957d:OtherOperationsAndMaintenanceExpenseMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMemberd:GeneralCorporatePurposesMember2023-11-300000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957us-gaap:RevolvingCreditFacilityMemberd:VirginiaElectricAndPowerCompanyMember2022-11-300000715957d:QuestarGasCompanyMemberd:UtahRegulationMember2023-03-012023-03-310000715957us-gaap:PreferredStockMember2019-01-012019-12-310000715957us-gaap:JuniorSubordinatedDebtMemberd:October2014HybridsMember2014-10-310000715957d:OtherMemberd:RegulatedGasSalesMember2022-01-012022-12-3100007159572022-04-012022-06-300000715957srt:OfficerMemberd:GrantDateThreeMemberd:February2020CashBasedPerformanceGrantMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:WholesaleMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957srt:MaximumMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310000715957d:DominionEnergySouthCarolinaIncMemberus-gaap:CaliforniaFranchiseTaxBoardMembersrt:MinimumMember2021-06-012021-06-300000715957d:VirginiaElectricAndPowerCompanyMemberd:DeferredCostOfFuelUsedInElectricGenerationMember2023-12-310000715957us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957d:AshPondAndLandfillClosureCostsMembersrt:MinimumMember2023-01-012023-12-310000715957d:AcquisitionOfSolarProjectMadisonInVirginiaMember2023-01-012023-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:TaxExemptFinancingsZeroPointSevenFiveToThreePointSixFivePercentDueTwoThousandThirtyTwoToTwoThousandFortyOneMemberd:TaxExemptFinancingMember2023-12-310000715957d:NewCorporateOfficeMemberd:LessorMemberd:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember2016-07-012016-07-310000715957d:VirginiaElectricAndPowerCompanyMember2020-12-310000715957d:NonregulatedGenerationSolarMemberd:RevisionOfEstimatedUsefulLifeMember2022-01-012022-01-310000715957d:TermLoanCreditAgreementMember2023-01-012023-12-310000715957d:RiderUMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:SevenPhaseMember2023-01-012023-12-310000715957us-gaap:CommonStockMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:GasTransmissionMember2022-01-012022-12-310000715957d:AmountsAssociatedWithDominionPensionPlanMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310000715957d:InterestRateHedgesMember2023-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2023-12-310000715957us-gaap:SegmentContinuingOperationsMember2021-01-012021-12-310000715957us-gaap:AssetRetirementObligationCostsMember2022-12-310000715957srt:MaximumMemberus-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberd:PriceVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957d:UtilityTaxExemptLoanThreePointSixTwoFiveAndFourPercentDue2028To2033Memberd:TaxExemptFinancingMember2022-12-310000715957d:EastOhioPsncAndQuestarGasMember2023-09-300000715957d:LessorMemberd:LessorToCompleteConstructionAndLeaseJonesActCompliantOffshoreWindInstallationVesselMember2020-12-310000715957us-gaap:DeferredIncomeTaxChargesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:NonregulatedGenerationSolarMember2022-01-310000715957d:InsuranceContractsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-01-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityUsRegulatedMemberd:CommercialMember2022-01-012022-12-310000715957d:AlignRNGLLCMember2023-12-310000715957us-gaap:LetterOfCreditMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ForwardSaleAgreementMember2021-11-012021-11-300000715957us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMember2023-08-010000715957d:WholesaleMemberus-gaap:ElectricityUsRegulatedMember2022-01-012022-12-310000715957d:OtherMemberd:RegulatedGasSalesMember2023-01-012023-12-310000715957us-gaap:SeriesBPreferredStockMember2023-07-012023-09-300000715957d:InterestRateHedgesMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:UnrecognizedPensionAndOtherPostretirementBenefitCostsMember2022-12-310000715957us-gaap:NondesignatedMemberus-gaap:CommodityContractMember2023-12-310000715957d:QuestarGasCompanyMemberd:UtahRegulationMember2023-01-012023-12-310000715957d:CreditFacilityMaturingInOctoberTwoThousandTwentyFourMemberd:ThreeSixtyFourDayTermLoanFacilityMember2023-10-012023-10-310000715957srt:MaximumMemberus-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957d:NonregulatedGenerationSolarMemberd:RevisionOfEstimatedUsefulLifeMemberus-gaap:SubsequentEventMember2024-01-012024-01-310000715957d:AcquisitionOfSolarProjectBelcherInVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ElectricTransmissionProjectMemberd:DominionEnergySouthCarolinaIncMemberd:SouthCarolinaRegulationMember2023-03-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderBWMember2023-01-012023-12-310000715957d:OtherDeferredCreditsAndOtherLiabilitiesMember2022-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:RegulatedGasSalesMemberd:CommercialMember2023-01-012023-12-310000715957d:DESCMember2021-07-012021-07-3100007159572024-02-190000715957us-gaap:OtherNonoperatingIncomeExpenseMember2020-01-012020-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DominionEnergyVirginiaMember2023-12-310000715957srt:MaximumMemberus-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberd:NonregulatedRetailSoftwareDevelopmentMember2021-12-310000715957us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-01-012023-12-310000715957d:PsncMemberd:EnbridgeMember2023-12-012023-12-310000715957d:ForeignExchangeNonCurrentDerivativeContractMember2023-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberd:TransitionServiceAgreementMember2023-01-012023-12-310000715957d:InsuranceContractsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2023-12-310000715957us-gaap:JuniorSubordinatedDebtMemberd:UnsecuredJuniorSubordinatedNotesThreePointZeroSevenOneDueTwoThousandTwentyFourMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310000715957d:CreditFacilityMaturingInOctoberTwoThousandTwentyFourMemberd:ThreeSixtyFourDayTermLoanFacilityMember2023-10-310000715957d:TredegarSolarFundILlcMemberd:OtherSalesMember2023-08-310000715957us-gaap:DesignatedAsHedgingInstrumentMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2022-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FixedIncomeFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957d:FloatingRateDemandNotesMemberd:ShelfRegistrationForSaleOfDemandNotesMember2020-10-310000715957us-gaap:SegmentDiscontinuedOperationsMember2021-01-012021-12-310000715957us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CommodityContractMember2022-12-310000715957d:MillstonePowerStationMember2021-01-012021-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergyVirginiaMember2022-12-310000715957d:NewCorporateOfficeMemberd:LessorMemberd:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember2021-01-012021-03-310000715957us-gaap:SeriesBPreferredStockMember2023-01-012023-03-310000715957us-gaap:PensionPlansDefinedBenefitMembersrt:MinimumMember2022-01-012022-12-310000715957d:EliminationsAndReconcilingItemsMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DerivativeAssetsMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-07-310000715957d:TerraNovaRenewablePartnersMemberd:NonregulatedSolarProjectsMemberd:SBLHoldcoLLCMember2021-08-310000715957us-gaap:OtherCurrentLiabilitiesMember2023-12-310000715957srt:MaximumMemberd:UnsecuredSeniorNotesTwoPointThreeZeroPercentToEightPointEightSevenFivePercentDueTwoThousandTwentyThreeToTwoThousandFiftyThreeMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:CorporateAndOtherMemberus-gaap:IntersegmentEliminationMember2023-01-012023-12-310000715957us-gaap:NuclearPlantMemberd:SecondaryFinancialProtectionProgramMember2023-09-012023-09-300000715957d:NewCorporateOfficeMemberd:LessorMemberd:BuiltToSuitLeaseArrangementWithLessorToConstructAndLeaseCorporateOfficePropertyMember2016-07-310000715957d:QPipeGroupMemberus-gaap:SegmentDiscontinuedOperationsMember2021-01-012021-12-310000715957d:ResidentialMemberd:RegulatedGasSalesMember2021-01-012021-12-310000715957d:UnsecuredSeniorNotesTwoPointThreeZeroPercentToEightPointEightSevenFivePercentDueTwoThousandTwentyThreeToTwoThousandFiftyThreeMemberd:VirginiaElectricAndPowerCompanyMembersrt:MinimumMember2023-12-310000715957srt:MaximumMemberd:PsncMemberd:EnbridgeMember2022-12-310000715957d:ElectricDistributionGridTransformationProjectsMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:ImpairmentOfAssetsAndOtherChargesMemberd:GridTransformationAndSecurityActMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergyVirginiaMember2021-01-012021-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:PrivateEquityFundsMember2023-12-310000715957us-gaap:SeriesCPreferredStockMember2023-04-012023-06-300000715957us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2023-12-310000715957us-gaap:DeferredIncomeTaxChargesMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957us-gaap:IntersegmentEliminationMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderCCRMember2023-01-012023-12-3100007159572020-12-310000715957us-gaap:DomesticCountryMemberd:VirginiaElectricAndPowerCompanyMembersrt:AffiliatedEntityMember2023-12-310000715957d:RidersRGGIMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:SeriesCPreferredStockMemberd:DominionEnergyMember2022-01-012022-12-310000715957us-gaap:InvestmentCreditMemberus-gaap:DomesticCountryMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:EarliestTaxYearMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:LineOfCreditSubLimitMember2023-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMember2023-12-310000715957us-gaap:PensionPlansDefinedBenefitMember2020-12-310000715957d:FloatingRateDemandNotesMember2022-12-310000715957d:FiniteLivedEquityMethodInvestmentBasisDifferenceMember2023-01-012023-12-310000715957us-gaap:IntersegmentEliminationMemberd:ContractedEnergyMember2023-01-012023-12-310000715957d:NonregulatedElectricitySalesMemberd:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:ImpairmentOfAssetsAndOtherChargesMembersrt:OfficeBuildingMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:OtherPlantInServiceMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergyVirginiaMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2020-12-310000715957d:AtlanticCoastPipelineLLCMember2023-01-012023-12-310000715957us-gaap:CreditConcentrationRiskMemberd:InvestmentGradeCounterpartyMemberd:InternalAndExternalCreditRatingInvestmentGradeMember2023-01-012023-12-310000715957d:GovernmentDebtFixedIncomeSecuritiesMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:DeferredEarlyPlantRetirementChargesMember2023-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanRealEstateMember2023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeMember2022-12-310000715957us-gaap:OperatingSegmentsMemberd:RiderT1Memberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:TransmissionComponentOfVirginiaPowersMember2023-01-012023-12-310000715957d:RiderCEMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-12-310000715957us-gaap:ExchangeTradedMemberus-gaap:CommodityContractMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMembercountry:US2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:IncomePaymentProgramMember2020-12-012020-12-310000715957d:PipelineInfrastructureReplacementProgramMemberd:OhioRegulationMember2023-01-012023-12-310000715957us-gaap:LetterOfCreditMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CashFlowHedgingMember2022-01-012022-12-310000715957d:TaxExemptFinancingMemberd:VariableRateDue2038Member2023-12-310000715957d:ImpairmentOfAssetsAndOtherChargesMemberd:VirginiaElectricAndPowerCompanyMemberd:NonregulatedRetailSoftwareDevelopmentMember2021-01-012021-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000715957d:TaxExemptFinancingsZeroPointSevenFiveToThreePointSixFivePercentDueTwoThousandThirtyTwoToTwoThousandFortyOneMemberd:TaxExemptFinancingMember2022-12-310000715957d:VirginiaRegulationMemberd:OffshoreWindFacilityMemberd:VirginiaElectricAndPowerCompanyMembersrt:MinimumMemberd:EndOfYearTwoThousandThirtyFiveMember2020-04-012020-04-300000715957d:TermLoanCreditAgreementMember2021-07-012021-07-310000715957us-gaap:SeriesAPreferredStockMember2023-04-012023-06-300000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMember2021-01-012021-12-310000715957d:AcquisitionOfSolarProjectTraskInSouthCarolinaMember2023-01-012023-12-310000715957d:ElectricGenerationFacilitiesMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:EquityMethodInvesteeMemberd:DominionCovePointLNGLPMemberd:GuaranteesWithMaximumLimitMember2023-01-012023-12-310000715957d:FiniteLivedEquityMethodInvestmentBasisDifferenceMemberd:DominionCovePointLNGLPMember2022-12-310000715957d:RegulatedGasTransportationAndStorageMember2023-01-012023-12-310000715957d:OhioRegulationMemberd:PipelineInfrastructureReplacementProgramMember2022-01-012022-12-310000715957d:EastOhioPsncAndQuestarGasMember2023-01-012023-12-310000715957d:EastOhioMemberd:EnbridgeMember2023-12-012023-12-310000715957srt:MaximumMemberd:VirginiaRegulationMemberd:OffshoreWindFacilityMemberd:VirginiaElectricAndPowerCompanyMemberd:EndOfYearTwoThousandThirtyFiveMember2020-04-012020-04-300000715957us-gaap:IntersegmentEliminationMemberd:DominionEnergyVirginiaMember2021-01-012021-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:DSMRidersMemberd:EnergyEfficiencyProgramMember2023-01-012023-12-310000715957d:EnvironmentalProtectionAgencyMemberus-gaap:UnfavorableRegulatoryActionMemberd:VirginiaElectricAndPowerCompanyMemberd:WasteManagementAndRemediationMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:ExchangeTradedMemberus-gaap:CommodityContractMember2022-12-310000715957us-gaap:AccumulatedOtherComprehensiveIncomeMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:DerivativeLiabilitiesMember2023-12-310000715957us-gaap:SeriesBPreferredStockMember2023-10-012023-12-310000715957d:GasTransmissionAndStorageMember2021-01-012021-12-310000715957us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:InterestRateContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:OverTheCounterMember2023-12-310000715957stpr:VA2023-01-012023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:FinancialTransmissionRightsElectricityCurrentDerivativeContractMember2023-01-012023-12-310000715957d:OtherSalesMember2023-01-012023-12-310000715957d:EnbridgeMemberd:EastOhioMember2022-01-012022-12-310000715957d:DerivativeAssetsMember2022-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:HedgeFundsMember2022-12-310000715957d:SCANAMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:WholesaleMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-3100007159572021-12-012021-12-310000715957d:OtherGuarantorObligationsMember2023-12-310000715957us-gaap:NuclearPlantMember2023-12-310000715957d:DominionEnergyMember2022-12-310000715957d:FloatingRateDemandNotesMember2023-12-310000715957us-gaap:SeriesAPreferredStockMember2022-04-012022-06-300000715957us-gaap:FairValueInputsLevel1Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-12-310000715957d:FourBrothersAndThreeCedarsMember2021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:RelatedPartyMember2022-01-012022-12-310000715957us-gaap:InterestRateSwapMemberd:VirginiaElectricAndPowerCompanyMember2020-08-310000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMember2021-01-012021-12-310000715957us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2022-12-310000715957us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957us-gaap:PreferredStockMember2022-12-310000715957us-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberd:PriceVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMembersrt:WeightedAverageMember2023-01-012023-12-310000715957us-gaap:LetterOfCreditMemberd:CreditFacilityMaturingInJanuaryTwoThousandTwentySixMemberd:VirginiaElectricAndPowerCompanyMember2023-01-310000715957srt:OfficerMemberd:February2023CashBasedPerformanceGrantMemberd:GrantDateThreeMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:ContractedEnergyMember2021-01-012021-12-310000715957d:DominionEnergyDirectMember2021-01-012021-12-310000715957us-gaap:NondesignatedMemberus-gaap:SalesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2023-01-012023-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMember2022-05-310000715957d:InsuranceContractsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000715957us-gaap:SeriesAPreferredStockMember2023-01-012023-03-310000715957d:NonregulatedElectricitySalesMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:DefinedBenefitPlanRealEstateMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberd:VirginiaElectricAndPowerCompanyMemberd:GovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957us-gaap:ElectricityMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberd:FinancialTransmissionRightsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:GovernmentAndOtherRetailMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957us-gaap:SeniorNotesMemberd:UnsecuredSeniorNotesOnePointFourFivePercentToSevenPointZeroPercentDueTwoThousandTwentyThreeToTwoThousandFiftyTwoMembersrt:MinimumMember2023-12-310000715957us-gaap:DomesticCountryMemberus-gaap:InvestmentCreditMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2023-11-082023-11-080000715957us-gaap:IntersegmentEliminationMemberd:ContractedEnergyMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderSNAOneMember2023-01-012023-12-310000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-01-012023-12-310000715957d:RebuildOfLines2019And2007InTheCityOfVirginiaBeachVirginiaMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957srt:OfficerMemberd:CashBasedPerformanceGrantMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-12-310000715957srt:MaximumMemberd:DESCMemberd:FirstMortgageBondsThreePointTwoTwoToSixPointDue2028To2065Member2023-12-310000715957us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-12-310000715957d:PowerPurchaseArrangementMember2022-12-310000715957d:OtherInvestmentMember2023-12-310000715957d:RiderGVOneMemberd:VirginiaElectricAndPowerCompanyMemberd:RateYearsBeginningMember2023-01-012023-12-310000715957d:MarchTwentyTwentyThreeMember2023-03-310000715957us-gaap:InterestRateContractMember2023-12-310000715957d:NNDProjectCostsMember2022-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberd:GovernmentDebtSecuritiesMemberus-gaap:FixedIncomeSecuritiesMember2022-12-310000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommonStockMember2020-12-310000715957d:VirginiaElectricAndPowerCompanyMember2023-12-310000715957us-gaap:NoncontrollingInterestMember2021-01-012021-12-310000715957d:WranglerRetailGasHoldingsLLCMember2021-12-310000715957us-gaap:OperatingSegmentsMemberus-gaap:CorporateAndOtherMember2023-12-310000715957us-gaap:MaterialReconcilingItemsMember2023-01-012023-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMemberus-gaap:SeriesAPreferredStockMember2022-06-012022-08-310000715957d:QuestarGasCompanyMemberd:UtahRegulationMember2023-02-012023-02-280000715957us-gaap:RestrictedStockMembersrt:WeightedAverageMember2023-01-012023-12-310000715957d:UnsecuredSeniorNotesOnePointThreeZeroPercentToSixPointThreeEightPercentDueTwoThousandTwentyFiveToTwoThousandFiftyTwoMemberd:EastOhioMember2023-12-310000715957us-gaap:ForeignExchangeContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:OverTheCounterMember2022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2022-12-310000715957d:ChangeInMethodOfAccountingForInvestmentTaxCreditsAtNonregulatedOperationsMemberd:VirginiaElectricAndPowerCompanyMember2022-12-3100007159572021-07-310000715957us-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310000715957us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2023-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:GenerationAndDistributionServicesMember2023-11-012023-11-3000007159572021-08-310000715957us-gaap:NuclearPlantMember2023-01-012023-12-310000715957us-gaap:UnfavorableRegulatoryActionMemberd:CleanWaterActMember2023-01-012023-12-310000715957d:UnsecuredJuniorSubordinatedNotesPayabletoAffiliatedTrustsMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:VirginiaElectricAndPowerCompanyMember2023-12-310000715957stpr:SC2023-01-012023-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957us-gaap:SeriesCPreferredStockMember2022-10-012022-12-310000715957us-gaap:CommonStockMember2020-11-300000715957d:FinancialTransmissionRightsElectricityCurrentDerivativeContractMember2023-01-012023-12-310000715957d:SustainabilityRevolvingCreditAgreementVariableRateDueTwoThousandTwentyFourMember2022-12-310000715957d:ResidentialMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:ElectricityUsRegulatedMember2023-01-012023-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957srt:OfficerMemberd:February2022CashBasedPerformanceGrantMemberd:GrantDateThreeMember2023-12-310000715957us-gaap:OtherRegulatoryAssetsLiabilitiesMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:DominionCovePointLNGLPMember2022-01-012022-12-310000715957d:BasisNaturalGasCurrentDerivativeContractMemberd:VirginiaElectricAndPowerCompanyMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:GovernmentAndOtherRetailMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957us-gaap:SegmentDiscontinuedOperationsMember2023-12-310000715957us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957d:ThreeSixtyFourDayTermLoanFacilityMemberd:GeneralCorporatePurposesMember2023-10-310000715957d:HopeGasIncMember2022-01-012022-12-310000715957us-gaap:ForeignExchangeContractMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:OverTheCounterMember2023-12-310000715957d:VirginiaElectricAndPowerCompanyMember2021-01-012021-12-310000715957d:InsuranceContractsMember2022-01-012022-12-310000715957us-gaap:PensionPlansDefinedBenefitMembersrt:MinimumMember2023-01-012023-12-310000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMember2023-04-012023-06-300000715957us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberd:ForeignEquitySecuritiesMember2023-12-310000715957us-gaap:PreferredStockMember2021-12-310000715957us-gaap:FairValueInputsLevel3Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2022-12-310000715957d:SummerUnitMember2022-01-012022-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310000715957us-gaap:AssetRetirementObligationCostsMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957stpr:CT2023-01-012023-12-310000715957d:PensionPlansAndOtherPostRetirementBenefitPlanMember2023-01-012023-12-310000715957d:DominionEnergyKewauneeIncMember2022-04-012022-06-300000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMember2023-10-012023-12-310000715957us-gaap:FairValueInputsLevel2Memberd:VirginiaElectricAndPowerCompanyMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2022-12-310000715957d:BiennialReviewMemberd:VirginiaElectricAndPowerCompanyMember2023-07-012023-07-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310000715957d:ElectricFuelAndOtherEnergyRelatedPurchasesMemberus-gaap:NondesignatedMemberd:VirginiaElectricAndPowerCompanyMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCommonCollectiveTrustMember2022-12-310000715957us-gaap:ForeignExchangeContractMemberd:VirginiaElectricAndPowerCompanyMember2022-12-310000715957d:InterestRateHedgesMember2022-12-310000715957us-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310000715957d:RegulatedGasSalesMemberd:CommercialMember2022-01-012022-12-310000715957us-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberd:PriceVolatilityMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000715957us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000715957us-gaap:FairValueInputsLevel3Membersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMemberd:MarketPriceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:CommodityContractMemberus-gaap:MarketApproachValuationTechniqueMember2023-01-012023-12-310000715957d:AcquisitionOfSolarProjectYemasseeInSouthCarolinaMember2023-01-012023-12-310000715957us-gaap:FairValueMeasurementsRecurringMemberd:CashEquivalentsAndOtherInvestmentMember2023-12-310000715957us-gaap:UnfavorableRegulatoryActionMemberd:VirginiaElectricAndPowerCompanyMemberd:CleanWaterActMember2023-01-012023-12-310000715957d:TwoThousandAndNineteenSeriesACorporateUnitsMemberus-gaap:CommonStockMember2022-06-012022-06-300000715957d:ElectricGenerationFacilitiesMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:GasTransmissionAndStorageMemberd:TransitionServiceAgreementMember2022-01-012022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Memberd:UsEquitySecuritiesMember2023-12-310000715957us-gaap:IntersegmentEliminationMember2023-01-012023-12-310000715957us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:NaturalGasReservesMemberus-gaap:FairValueMeasurementsRecurringMemberd:MarketPriceMemberus-gaap:CommodityContractMembersrt:WeightedAverageMember2023-01-012023-12-310000715957us-gaap:NondesignatedMemberd:PurchasedGasMemberus-gaap:CommodityContractMember2021-01-012021-12-310000715957d:VirginiaElectricAndPowerCompanyMemberus-gaap:CommonStockMember2023-01-012023-12-310000715957d:NorthCarolinaRegulationMemberd:RiderDMemberd:PublicServiceCompanyOfNorthCarolinaMember2023-02-012023-02-280000715957d:IncomeLossFromDiscontinuedOperationsMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:RiderSNAMember2023-01-012023-12-310000715957d:VirginiaElectricAndPowerCompanyMemberd:TaxExemptDebtMember2023-12-310000715957us-gaap:OperatingSegmentsMemberd:DominionEnergySouthCarolinaIncMember2021-01-012021-12-310000715957us-gaap:ExchangeTradedMemberus-gaap:CommodityContractMember2023-12-310000715957d:AROsAndRelatedFundingMember2022-12-310000715957us-gaap:EnvironmentalRestorationCostsMember2022-12-310000715957us-gaap:ChangeInAccountingPrincipleIndirectEffectMember2022-01-012022-12-310000715957us-gaap:PropertyPlantAndEquipmentOtherTypesMembersrt:MinimumMember2023-12-310000715957d:BerkshireHathawayEnergyCompanyMemberd:QPipeGroupMember2020-10-310000715957us-gaap:OperatingSegmentsMember2021-12-310000715957us-gaap:CommonStockMember2020-12-310000715957d:AlternativeRevenueProgramsMemberd:VirginiaElectricAndPowerCompanyMember2022-01-012022-12-310000715957d:SummerUnitMember2023-01-012023-12-310000715957d:UllicoIncorMember2023-12-310000715957us-gaap:PreferredStockMember2023-01-012023-12-3100007159572023-12-310000715957us-gaap:ParentMember2023-12-310000715957d:GovernmentAndOtherRetailMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-12-310000715957us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2023-12-310000715957d:RiderRggiOneMemberd:ImpairmentOfAssetsAndOtherChargesMemberd:VirginiaElectricAndPowerCompanyMember2022-04-012022-06-300000715957d:RiderRggiOneMemberd:ImpairmentOfAssetsAndOtherChargesMemberd:VirginiaElectricAndPowerCompanyMember2022-07-012022-09-300000715957d:ImpairmentOfAssetsAndOtherChargesMembersrt:OfficeBuildingMember2023-01-012023-12-310000715957us-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000715957us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2022-12-310000715957d:SCANAMemberd:StateCourtDerivativeCaseMember2021-06-012021-06-300000715957d:AtlanticCoastPipelineLLCMember2022-12-310000715957d:VirginiaRegulationMemberd:VirginiaElectricAndPowerCompanyMemberd:AnnualFuelFactorMember2022-01-012022-06-300000715957us-gaap:RevolvingCreditFacilityMemberd:AtlanticCoastPipelineLLCMember2020-07-310000715957us-gaap:NondesignatedMemberd:OtherOperationAndMaintenanceMemberus-gaap:CommodityContractMember2022-01-012022-12-310000715957us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-12-31iso4217:EURd:Projectiso4217:USDutr:MWhiso4217:USD