10-Q 1 duk-20240331.htm FORM 10-Q duk-20240331
0001326160--12-312024Q1false0000030371--12-310001094093--12-310000017797--12-310000037637--12-310000020290--12-310000081020--12-310000078460--12-310.0084131http://fasb.org/us-gaap/2023#PrepaidExpenseAndOtherAssetsCurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#DeferredCreditsAndOtherLiabilitieshttp://fasb.org/us-gaap/2023#PrepaidExpenseAndOtherAssetsCurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#DeferredCreditsAndOtherLiabilities911119111191111911119111100013261602024-01-012024-03-310001326160duk:DukeEnergyCarolinasMember2024-01-012024-03-310001326160duk:ProgressEnergyMember2024-01-012024-03-310001326160duk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMember2024-01-012024-03-310001326160us-gaap:CommonStockMember2024-01-012024-03-310001326160duk:JuniorSubordinatedDebentures5.625CouponDueSeptember2078Member2024-01-012024-03-310001326160duk:DepositaryShareMember2024-01-012024-03-310001326160duk:SeniorNotes310PercentDue2028Member2024-01-012024-03-310001326160duk:SeniorNotes385PercentDue2034Member2024-01-012024-03-310001326160duk:SeniorNotes3.75PercentDue2031Member2024-01-012024-03-3100013261602024-04-30xbrli:shares0001326160duk:ProgressEnergyMember2024-04-300001326160duk:DukeEnergyOhioMember2024-04-300001326160duk:PiedmontNaturalGasMember2024-04-30iso4217:USD00013261602023-01-012023-03-310001326160us-gaap:ElectricityMember2024-01-012024-03-310001326160us-gaap:ElectricityMember2023-01-012023-03-310001326160srt:NaturalGasReservesMember2024-01-012024-03-310001326160srt:NaturalGasReservesMember2023-01-012023-03-31iso4217:USDxbrli:shares00013261602024-03-3100013261602023-12-310001326160duk:VariableInterestEntityMember2024-03-310001326160duk:VariableInterestEntityMember2023-12-310001326160us-gaap:SeriesAPreferredStockMember2024-03-310001326160us-gaap:SeriesAPreferredStockMember2023-12-310001326160us-gaap:SeriesBPreferredStockMember2023-12-310001326160us-gaap:SeriesBPreferredStockMember2024-03-3100013261602022-12-3100013261602023-03-310001326160us-gaap:PreferredStockMember2022-12-310001326160us-gaap:CommonStockMember2022-12-310001326160us-gaap:AdditionalPaidInCapitalMember2022-12-310001326160us-gaap:RetainedEarningsMember2022-12-310001326160duk:AccumulatedGainLossNetCashFlowHedgeAndAOCIDerivativeQualifyingAsHedgeExcludedComponentParentMember2022-12-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-12-310001326160us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-12-310001326160us-gaap:ParentMember2022-12-310001326160us-gaap:NoncontrollingInterestMember2022-12-310001326160us-gaap:RetainedEarningsMember2023-01-012023-03-310001326160us-gaap:ParentMember2023-01-012023-03-310001326160us-gaap:NoncontrollingInterestMember2023-01-012023-03-310001326160duk:AccumulatedGainLossNetCashFlowHedgeAndAOCIDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-01-012023-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-01-012023-03-310001326160us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-01-012023-03-310001326160us-gaap:CommonStockMember2023-01-012023-03-310001326160us-gaap:CommonStockMemberus-gaap:AdditionalPaidInCapitalMember2023-01-012023-03-310001326160us-gaap:ParentMemberus-gaap:CommonStockMember2023-01-012023-03-310001326160us-gaap:CommonStockMember2023-01-012023-03-310001326160us-gaap:AdditionalPaidInCapitalMember2023-01-012023-03-310001326160us-gaap:PreferredStockMember2023-03-310001326160us-gaap:CommonStockMember2023-03-310001326160us-gaap:AdditionalPaidInCapitalMember2023-03-310001326160us-gaap:RetainedEarningsMember2023-03-310001326160duk:AccumulatedGainLossNetCashFlowHedgeAndAOCIDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-03-310001326160us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-03-310001326160us-gaap:ParentMember2023-03-310001326160us-gaap:NoncontrollingInterestMember2023-03-310001326160us-gaap:PreferredStockMember2023-12-310001326160us-gaap:CommonStockMember2023-12-310001326160us-gaap:AdditionalPaidInCapitalMember2023-12-310001326160us-gaap:RetainedEarningsMember2023-12-310001326160duk:AccumulatedGainLossNetCashFlowHedgeAndAOCIDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-12-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-12-310001326160us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-310001326160us-gaap:ParentMember2023-12-310001326160us-gaap:NoncontrollingInterestMember2023-12-310001326160us-gaap:RetainedEarningsMember2024-01-012024-03-310001326160us-gaap:ParentMember2024-01-012024-03-310001326160us-gaap:NoncontrollingInterestMember2024-01-012024-03-310001326160duk:AccumulatedGainLossNetCashFlowHedgeAndAOCIDerivativeQualifyingAsHedgeExcludedComponentParentMember2024-01-012024-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2024-01-012024-03-310001326160us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-01-012024-03-310001326160us-gaap:CommonStockMember2024-01-012024-03-310001326160us-gaap:AdditionalPaidInCapitalMember2024-01-012024-03-310001326160us-gaap:PreferredStockMember2024-03-310001326160us-gaap:CommonStockMember2024-03-310001326160us-gaap:AdditionalPaidInCapitalMember2024-03-310001326160us-gaap:RetainedEarningsMember2024-03-310001326160duk:AccumulatedGainLossNetCashFlowHedgeAndAOCIDerivativeQualifyingAsHedgeExcludedComponentParentMember2024-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2024-03-310001326160us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-03-310001326160us-gaap:ParentMember2024-03-310001326160us-gaap:NoncontrollingInterestMember2024-03-310001326160duk:DukeEnergyCarolinasMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMember2024-03-310001326160duk:DukeEnergyCarolinasMember2023-12-310001326160duk:DukeEnergyCarolinasMembersrt:AffiliatedEntityMember2024-03-310001326160duk:DukeEnergyCarolinasMembersrt:AffiliatedEntityMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:VariableInterestEntityMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:VariableInterestEntityMember2023-12-310001326160duk:DukeEnergyCarolinasMember2022-12-310001326160duk:DukeEnergyCarolinasMember2023-03-310001326160duk:DukeEnergyCarolinasMemberduk:MembersEquityMember2022-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-12-310001326160duk:DukeEnergyCarolinasMemberduk:MembersEquityMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:MembersEquityMember2023-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-03-310001326160duk:DukeEnergyCarolinasMemberduk:MembersEquityMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:MembersEquityMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:MembersEquityMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-03-310001326160duk:ProgressEnergyMember2023-01-012023-03-310001326160duk:ProgressEnergyMember2024-03-310001326160duk:ProgressEnergyMember2023-12-310001326160duk:VariableInterestEntityMemberduk:ProgressEnergyMember2024-03-310001326160duk:VariableInterestEntityMemberduk:ProgressEnergyMember2023-12-310001326160duk:ProgressEnergyMembersrt:AffiliatedEntityMember2024-03-310001326160duk:ProgressEnergyMembersrt:AffiliatedEntityMember2023-12-310001326160duk:ProgressEnergyMember2022-12-310001326160duk:ProgressEnergyMember2023-03-310001326160duk:ProgressEnergyMemberus-gaap:AdditionalPaidInCapitalMember2022-12-310001326160duk:ProgressEnergyMemberus-gaap:RetainedEarningsMember2022-12-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-12-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:ProgressEnergyMember2022-12-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-12-310001326160duk:ProgressEnergyMemberus-gaap:RetainedEarningsMember2023-01-012023-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:ProgressEnergyMember2023-01-012023-03-310001326160duk:ProgressEnergyMemberus-gaap:AdditionalPaidInCapitalMember2023-01-012023-03-310001326160duk:ProgressEnergyMemberus-gaap:AdditionalPaidInCapitalMember2023-03-310001326160duk:ProgressEnergyMemberus-gaap:RetainedEarningsMember2023-03-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:ProgressEnergyMember2023-03-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-03-310001326160duk:ProgressEnergyMemberus-gaap:AdditionalPaidInCapitalMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:RetainedEarningsMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-12-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:ProgressEnergyMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:RetainedEarningsMember2024-01-012024-03-310001326160duk:ProgressEnergyMemberus-gaap:AdditionalPaidInCapitalMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:RetainedEarningsMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:ProgressEnergyMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-03-310001326160duk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:DukeEnergyProgressMember2024-03-310001326160duk:DukeEnergyProgressMember2023-12-310001326160duk:VariableInterestEntityMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:VariableInterestEntityMemberduk:DukeEnergyProgressMember2023-12-310001326160srt:AffiliatedEntityMemberduk:DukeEnergyProgressMember2024-03-310001326160srt:AffiliatedEntityMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:DukeEnergyProgressMember2022-12-310001326160duk:DukeEnergyProgressMember2023-03-310001326160duk:MembersEquityMemberduk:DukeEnergyProgressMember2022-12-310001326160duk:MembersEquityMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:MembersEquityMemberduk:DukeEnergyProgressMember2023-03-310001326160duk:MembersEquityMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:MembersEquityMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:MembersEquityMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:DukeEnergyFloridaMember2024-03-310001326160duk:DukeEnergyFloridaMember2023-12-310001326160duk:VariableInterestEntityMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:VariableInterestEntityMemberduk:DukeEnergyFloridaMember2023-12-310001326160srt:AffiliatedEntityMemberduk:DukeEnergyFloridaMember2024-03-310001326160srt:AffiliatedEntityMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:DukeEnergyFloridaMember2022-12-310001326160duk:DukeEnergyFloridaMember2023-03-310001326160duk:MembersEquityMemberduk:DukeEnergyFloridaMember2022-12-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:DukeEnergyFloridaMember2022-12-310001326160duk:MembersEquityMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:MembersEquityMemberduk:DukeEnergyFloridaMember2023-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:DukeEnergyFloridaMember2023-03-310001326160duk:MembersEquityMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:MembersEquityMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:MembersEquityMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyOhioMemberus-gaap:ElectricityMember2024-01-012024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:ElectricityMember2023-01-012023-03-310001326160srt:NaturalGasReservesMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160srt:NaturalGasReservesMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyOhioMember2023-12-310001326160srt:AffiliatedEntityMemberduk:DukeEnergyOhioMember2024-03-310001326160srt:AffiliatedEntityMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyOhioMember2022-12-310001326160duk:DukeEnergyOhioMember2023-03-310001326160us-gaap:CommonStockMemberduk:DukeEnergyOhioMember2022-12-310001326160us-gaap:AdditionalPaidInCapitalMemberduk:DukeEnergyOhioMember2022-12-310001326160duk:DukeEnergyOhioMemberus-gaap:RetainedEarningsMember2022-12-310001326160duk:DukeEnergyOhioMemberus-gaap:RetainedEarningsMember2023-01-012023-03-310001326160us-gaap:CommonStockMemberduk:DukeEnergyOhioMember2023-03-310001326160us-gaap:AdditionalPaidInCapitalMemberduk:DukeEnergyOhioMember2023-03-310001326160duk:DukeEnergyOhioMemberus-gaap:RetainedEarningsMember2023-03-310001326160us-gaap:CommonStockMemberduk:DukeEnergyOhioMember2023-12-310001326160us-gaap:AdditionalPaidInCapitalMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyOhioMemberus-gaap:RetainedEarningsMember2023-12-310001326160duk:DukeEnergyOhioMemberus-gaap:RetainedEarningsMember2024-01-012024-03-310001326160us-gaap:CommonStockMemberduk:DukeEnergyOhioMember2024-03-310001326160us-gaap:AdditionalPaidInCapitalMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:RetainedEarningsMember2024-03-310001326160duk:DukeEnergyIndianaMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMember2024-03-310001326160duk:DukeEnergyIndianaMember2023-12-310001326160duk:DukeEnergyIndianaMembersrt:AffiliatedEntityMember2024-03-310001326160duk:DukeEnergyIndianaMembersrt:AffiliatedEntityMember2023-12-310001326160duk:DukeEnergyIndianaMember2022-12-310001326160duk:DukeEnergyIndianaMember2023-03-310001326160duk:DukeEnergyIndianaMemberduk:MembersEquityMember2022-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-12-310001326160duk:DukeEnergyIndianaMemberduk:MembersEquityMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:MembersEquityMember2023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-03-310001326160duk:DukeEnergyIndianaMemberduk:MembersEquityMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-310001326160duk:DukeEnergyIndianaMemberduk:MembersEquityMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:MembersEquityMember2024-03-310001326160duk:PiedmontNaturalGasMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMember2024-03-310001326160duk:PiedmontNaturalGasMember2023-12-310001326160duk:PiedmontNaturalGasMembersrt:AffiliatedEntityMember2024-03-310001326160duk:PiedmontNaturalGasMembersrt:AffiliatedEntityMember2023-12-310001326160duk:PiedmontNaturalGasMember2022-12-310001326160duk:PiedmontNaturalGasMember2023-03-310001326160us-gaap:CommonStockMemberduk:PiedmontNaturalGasMember2022-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:RetainedEarningsMember2022-12-310001326160us-gaap:ParentMemberduk:PiedmontNaturalGasMember2022-12-310001326160us-gaap:NoncontrollingInterestMemberduk:PiedmontNaturalGasMember2022-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:RetainedEarningsMember2023-01-012023-03-310001326160us-gaap:ParentMemberduk:PiedmontNaturalGasMember2023-01-012023-03-310001326160us-gaap:CommonStockMemberduk:PiedmontNaturalGasMember2023-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:RetainedEarningsMember2023-03-310001326160us-gaap:ParentMemberduk:PiedmontNaturalGasMember2023-03-310001326160us-gaap:NoncontrollingInterestMemberduk:PiedmontNaturalGasMember2023-03-310001326160us-gaap:CommonStockMemberduk:PiedmontNaturalGasMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:RetainedEarningsMember2023-12-310001326160us-gaap:ParentMemberduk:PiedmontNaturalGasMember2023-12-310001326160us-gaap:NoncontrollingInterestMemberduk:PiedmontNaturalGasMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:RetainedEarningsMember2024-01-012024-03-310001326160us-gaap:ParentMemberduk:PiedmontNaturalGasMember2024-01-012024-03-310001326160us-gaap:CommonStockMemberduk:PiedmontNaturalGasMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:RetainedEarningsMember2024-03-310001326160us-gaap:ParentMemberduk:PiedmontNaturalGasMember2024-03-310001326160us-gaap:NoncontrollingInterestMemberduk:PiedmontNaturalGasMember2024-03-310001326160duk:DukeEnergyParentMember2024-03-310001326160duk:DukeEnergyParentMember2023-12-310001326160us-gaap:RenewableEnergyProgramMember2022-05-300001326160duk:DukeEnergyParentMember2022-12-310001326160duk:DukeEnergyParentMember2023-01-012023-03-310001326160duk:DukeEnergyParentMember2023-03-310001326160duk:DukeEnergyParentMember2024-01-012024-03-310001326160duk:CommercialRenewablesDisposalGroupMemberus-gaap:DiscontinuedOperationsHeldforsaleMember2024-03-310001326160duk:CommercialRenewablesDisposalGroupMemberus-gaap:DiscontinuedOperationsHeldforsaleMember2023-12-310001326160duk:CommercialRenewablesDisposalGroupMemberus-gaap:DiscontinuedOperationsHeldforsaleMember2024-01-012024-03-310001326160duk:CommercialRenewablesDisposalGroupMemberus-gaap:DiscontinuedOperationsHeldforsaleMember2023-01-012023-03-31duk:Segment0001326160duk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:TotalReportableSegmentsMember2024-01-012024-03-310001326160duk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberus-gaap:IntersegmentEliminationMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:IntersegmentEliminationMember2024-01-012024-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:IntersegmentEliminationMember2024-01-012024-03-310001326160us-gaap:AllOtherSegmentsMemberus-gaap:IntersegmentEliminationMember2024-01-012024-03-310001326160us-gaap:IntersegmentEliminationMember2024-01-012024-03-310001326160us-gaap:OperatingSegmentsMemberduk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:OperatingSegmentsMember2024-01-012024-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:OperatingSegmentsMember2024-01-012024-03-310001326160duk:CorporateAndEliminationsMember2024-01-012024-03-310001326160us-gaap:OperatingSegmentsMemberduk:ElectricUtilitiesandInfrastructureMember2024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:OperatingSegmentsMember2024-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:OperatingSegmentsMember2024-03-310001326160duk:CorporateAndEliminationsMember2024-03-310001326160us-gaap:IntersegmentEliminationMember2024-03-310001326160duk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:TotalReportableSegmentsMember2023-01-012023-03-310001326160duk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberus-gaap:IntersegmentEliminationMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:IntersegmentEliminationMember2023-01-012023-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:IntersegmentEliminationMember2023-01-012023-03-310001326160us-gaap:AllOtherSegmentsMemberus-gaap:IntersegmentEliminationMember2023-01-012023-03-310001326160us-gaap:IntersegmentEliminationMember2023-01-012023-03-310001326160us-gaap:OperatingSegmentsMemberduk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:OperatingSegmentsMember2023-01-012023-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:OperatingSegmentsMember2023-01-012023-03-310001326160duk:CorporateAndEliminationsMember2023-01-012023-03-31duk:segment0001326160us-gaap:OperatingSegmentsMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:OperatingSegmentsMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:OperatingSegmentsMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160us-gaap:CorporateNonSegmentMemberduk:DukeEnergyOhioMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:IntersegmentEliminationMember2024-01-012024-03-310001326160us-gaap:OperatingSegmentsMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:OperatingSegmentsMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:OperatingSegmentsMemberduk:DukeEnergyOhioMember2024-03-310001326160us-gaap:CorporateNonSegmentMemberduk:DukeEnergyOhioMemberduk:CorporateAndReconcilingItemsMember2024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:IntersegmentEliminationMember2024-03-310001326160us-gaap:OperatingSegmentsMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:OperatingSegmentsMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:TotalReportableSegmentsMemberus-gaap:OperatingSegmentsMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160us-gaap:CorporateNonSegmentMemberduk:DukeEnergyOhioMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:NuclearRegulatoryCommissionMemberduk:OconeeNuclearStationSubsequentLicenseRenewalMemberduk:OconeeNuclearStationMember2021-06-072021-06-070001326160duk:DukeEnergyCarolinasMemberduk:NuclearRegulatoryCommissionMemberduk:OconeeNuclearStationSubsequentLicenseRenewalMemberduk:OconeeNuclearStationMember2021-06-062021-06-060001326160duk:DukeEnergyCarolinasMemberduk:NuclearRegulatoryCommissionMemberduk:OconeeNuclearStationSubsequentLicenseRenewalMember2021-07-282021-07-280001326160duk:DukeEnergyCarolinasMemberduk:NuclearRegulatoryCommissionMemberduk:OconeeNuclearStationSubsequentLicenseRenewalMember2021-09-272021-09-27duk:contention0001326160duk:NuclearRegulatoryCommissionMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMember2023-01-192023-01-190001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2023-09-012024-08-310001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2024-09-012025-08-310001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2025-09-012026-08-310001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2026-09-012026-12-31xbrli:pure0001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMember2023-08-222023-08-220001326160duk:A2023NorthCarolinaRateCaseRetailAllocatedMemberduk:DukeEnergyCarolinasMemberduk:NCUCMember2023-08-222023-08-220001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2023-12-152024-12-140001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2024-12-152025-12-140001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2025-12-152026-12-140001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMembersrt:ScenarioForecastMember2026-12-152027-12-140001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:A2023NorthCarolinaRateCaseMember2023-12-152023-12-150001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberus-gaap:EquityMemberduk:A2023NorthCarolinaRateCaseMember2023-12-152023-12-150001326160duk:DukeEnergyCarolinasMemberduk:A2024SouthCarolinaRateCaseMemberduk:PSCSCMembersrt:ScenarioForecastMember2024-01-042026-01-030001326160duk:DukeEnergyCarolinasMemberduk:A2024SouthCarolinaRateCaseMemberduk:PSCSCMembersrt:ScenarioForecastMember2026-01-042028-01-030001326160duk:DukeEnergyCarolinasMemberduk:A2024SouthCarolinaRateCaseMemberduk:PSCSCMember2024-01-042024-01-040001326160duk:DukeEnergyCarolinasMemberduk:A2024SouthCarolinaRateCaseMemberduk:PSCSCMemberus-gaap:EquityMember2024-01-042024-01-040001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:MarshallCombustionTurbinesCPCNProceedingsMember2024-03-14duk:numberOfCombustionTurbinesutr:MW0001326160duk:DukeEnergyCarolinasMemberduk:NCUCMemberduk:MarshallCombustionTurbinesCPCNProceedingsMember2024-03-142024-03-140001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMember2023-08-182023-08-180001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2023-06-012024-04-300001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2024-06-012025-05-310001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2025-06-012026-05-310001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2025-06-012025-12-310001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMember2023-04-262023-04-260001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2023-08-182024-08-170001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2024-08-182025-08-170001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2025-08-182026-08-170001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2026-08-182027-08-170001326160duk:NCUCMemberduk:A2022NorthCarolinaRateCaseRetailAllocatedMemberduk:DukeEnergyProgressMember2023-08-182023-08-180001326160duk:A2022NorthCarolinaRateCaseMemberduk:NCUCMemberus-gaap:EquityMemberduk:DukeEnergyProgressMember2023-08-182023-08-180001326160us-gaap:SubsequentEventMemberduk:StormRecoveryBondsMemberduk:DukeEnergyProgressMember2024-04-250001326160duk:NCUCMemberduk:PersonCountyCombinedCycleCPCNMemberduk:DukeEnergyProgressMember2024-03-280001326160duk:PersonCountyCombinedCycleCPCNMemberduk:NCEMCMemberduk:DukeEnergyProgressMembersrt:ScenarioForecastMember2026-01-010001326160duk:NCUCMemberduk:PersonCountyCombinedCycleCPCNMembersrt:ScenarioForecastMemberduk:NCEMCMember2026-01-010001326160duk:NCUCMemberduk:PersonCountyCombinedCycleCPCNMemberduk:DukeEnergyProgressMember2024-03-282024-03-280001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2022-01-012022-12-310001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2023-01-012023-12-310001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMembersrt:ScenarioForecastMember2024-01-012024-12-310001326160duk:A2021SettlementMemberduk:FPSCMembersrt:MinimumMemberduk:DukeEnergyFloridaMember2021-01-142021-01-140001326160duk:A2021SettlementMembersrt:MaximumMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2021-01-142021-01-140001326160duk:A2021SettlementMembersrt:WeightedAverageMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2021-01-142021-01-140001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2021-01-142021-01-140001326160duk:A2021SettlementMemberduk:FPSCMemberus-gaap:USTreasurySecuritiesMemberduk:DukeEnergyFloridaMember2021-01-142021-01-140001326160duk:A2021SettlementMemberduk:FPSCMemberus-gaap:USTreasurySecuritiesMembersrt:MinimumMemberduk:DukeEnergyFloridaMember2021-01-142021-01-140001326160duk:A2021SettlementMembersrt:MaximumMemberduk:FPSCMemberus-gaap:USTreasurySecuritiesMemberduk:DukeEnergyFloridaMember2021-01-142021-01-140001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2021-01-140001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2022-06-152022-06-150001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2022-06-150001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2023-03-310001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMembersrt:ScenarioForecastMember2024-12-310001326160duk:A2021SettlementMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2022-10-172022-10-170001326160duk:FPSCMemberduk:DukeEnergyFloridaMember2020-07-01duk:plant0001326160duk:SolarPlantMemberduk:DukeEnergyFloridaMember2020-07-012020-07-010001326160duk:FPSCMemberduk:StormProtectionPlanMemberduk:DukeEnergyFloridaMember2022-04-110001326160duk:FPSCMemberduk:StormProtectionPlanMemberduk:DukeEnergyFloridaMember2022-10-042022-10-040001326160duk:FPSCMemberduk:HurricaneIanMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2022-09-28duk:outage0001326160duk:FPSCMemberduk:HurricaneIanMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2022-09-270001326160duk:FPSCMemberduk:HurricaneIanMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2023-06-300001326160duk:FPSCMemberduk:HurricaneIanMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2023-01-232023-01-230001326160duk:HurricaneIanMember2023-09-290001326160duk:FPSCMemberduk:HurricaneIdaliaMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2023-08-30duk:customer0001326160duk:FPSCMemberduk:HurricaneIdaliaRetailPortionMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2023-10-162023-10-160001326160duk:HurricaneIdaliaProjectedCostsMemberduk:FPSCMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2023-10-162023-10-160001326160duk:FPSCMemberduk:HurricaneIdaliaMemberus-gaap:NaturalDisastersAndOtherCasualtyEventsMemberduk:DukeEnergyFloridaMember2023-10-162023-10-160001326160duk:A2022NorthCarolinaRateCaseMemberduk:FPSCMemberduk:DukeEnergyFloridaMembersrt:ScenarioForecastMember2025-01-012025-12-310001326160duk:A2022NorthCarolinaRateCaseMemberduk:FPSCMemberduk:DukeEnergyFloridaMembersrt:ScenarioForecastMember2026-01-012026-12-310001326160duk:A2022NorthCarolinaRateCaseMemberduk:FPSCMemberduk:DukeEnergyFloridaMembersrt:ScenarioForecastMember2027-01-012027-12-310001326160duk:A2022NorthCarolinaRateCaseMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2024-01-012024-01-310001326160duk:A2022NorthCarolinaRateCaseMembersrt:WeightedAverageMemberus-gaap:SubsequentEventMemberduk:FPSCMemberduk:DukeEnergyFloridaMember2024-04-022024-04-020001326160duk:PublicUtilitiesCommissionOfOhioMemberduk:DukeEnergyOhioElectricBaseRateCaseMemberduk:DukeEnergyOhioMember2021-10-012021-10-010001326160duk:PublicUtilitiesCommissionOfOhioMemberduk:DukeEnergyOhioElectricBaseRateCaseMemberduk:DukeEnergyOhioMember2022-09-192022-09-190001326160duk:PublicUtilitiesCommissionOfOhioMemberduk:DukeEnergyOhioMemberduk:DukeEnergyOhioGasBaseRateCaseMember2022-07-142022-07-140001326160duk:PublicUtilitiesCommissionOfOhioMemberduk:DukeEnergyOhioMemberduk:DukeEnergyOhioGasBaseRateCaseMember2023-04-282023-04-280001326160duk:PublicUtilitiesCommissionOfOhioMembersrt:MaximumMemberduk:DukeEnergyOhioMemberduk:DukeEnergyOhioGasBaseRateCaseMember2023-04-282023-04-280001326160duk:PublicUtilitiesCommissionOfOhioMemberduk:DukeEnergyOhioEnergySecurityPlanMemberus-gaap:SubsequentEventMemberduk:DukeEnergyOhioMember2024-04-012024-04-010001326160duk:KPSCMemberduk:DukeEnergyKentuckyElectricBaseRateCaseMemberduk:DukeEnergyOhioMember2022-12-012022-12-010001326160duk:KPSCMemberduk:DukeEnergyKentuckyElectricBaseRateCaseMemberduk:DukeEnergyOhioMember2023-10-122023-10-120001326160duk:KPSCMemberduk:DukeEnergyKentuckyElectricBaseRateCaseElectricBaseRatesMemberduk:DukeEnergyOhioMember2023-10-122023-10-120001326160duk:KPSCMemberduk:DukeEnergyKentuckyElectricBaseRateCaseElectricRidersMemberduk:DukeEnergyOhioMember2023-10-122023-10-120001326160duk:KPSCMemberduk:DukeEnergyKentuckyElectricBaseRateCaseMembersrt:MaximumMemberduk:DukeEnergyOhioMember2023-10-122023-10-120001326160duk:DukeEnergyIndianaMemberduk:IndianaUtilityRegulatoryCommissionMemberduk:IndianaCoalAshRecoveryMember2023-09-200001326160duk:DukeEnergyIndianaMemberduk:TDSIG20Memberduk:IndianaUtilityRegulatoryCommissionMember2022-06-150001326160duk:DukeEnergyIndianaMemberduk:A2024IndianaRateCaseMemberus-gaap:SubsequentEventMemberduk:IndianaUtilityRegulatoryCommissionMember2024-04-042024-04-040001326160duk:DukeEnergyIndianaMemberduk:A2024IndianaRateCaseMemberus-gaap:SubsequentEventMemberduk:IndianaUtilityRegulatoryCommissionMembersrt:ScenarioForecastMember2025-01-012025-12-310001326160duk:DukeEnergyIndianaMemberduk:A2024IndianaRateCaseMemberus-gaap:SubsequentEventMemberduk:IndianaUtilityRegulatoryCommissionMembersrt:ScenarioForecastMember2026-01-012026-12-310001326160duk:DukeEnergyIndianaMemberduk:A2024IndianaRateCaseMemberus-gaap:SubsequentEventMemberduk:IndianaUtilityRegulatoryCommissionMember2024-04-040001326160duk:A2024NorthCarolinaRateCaseMemberduk:NCUCMemberduk:PiedmontNaturalGasMemberus-gaap:SubsequentEventMember2024-04-012024-04-010001326160us-gaap:PendingLitigationMemberduk:TexasStormUriTortLitigationMember2021-02-28duk:case0001326160us-gaap:AsbestosIssueMemberduk:DukeEnergyCarolinasMember2024-03-310001326160us-gaap:AsbestosIssueMemberduk:DukeEnergyCarolinasMember2023-12-310001326160us-gaap:AccountingStandardsUpdate201613Memberduk:DukeEnergyandDukeEnergyCarolinasMember2024-03-310001326160us-gaap:AccountingStandardsUpdate201613Memberduk:DukeEnergyandDukeEnergyCarolinasMember2023-12-310001326160us-gaap:SubsequentEventMemberduk:SeniorNotes3.75PercentDue2031Memberus-gaap:UnsecuredDebtMember2024-04-30iso4217:EUR0001326160us-gaap:SubsequentEventMemberduk:DebtMaturingApril2024Memberus-gaap:SecuredDebtMember2024-04-300001326160us-gaap:SubsequentEventMemberus-gaap:FirstMortgageMemberduk:DukeEnergyFloridaMemberduk:FirstMortgageBondsDueApril2074Member2024-04-300001326160us-gaap:SubsequentEventMemberus-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMemberus-gaap:FirstMortgageMemberduk:DukeEnergyFloridaMemberduk:FirstMortgageBondsDueApril2074Member2024-04-012024-04-300001326160us-gaap:SubsequentEventMemberus-gaap:FirstMortgageMemberduk:DukeEnergyFloridaMemberduk:FirstMortgageBondsDueApril2074Member2024-04-012024-04-300001326160us-gaap:SubsequentEventMemberduk:StormRecoveryBondsMemberduk:DukeEnergyProgressMemberduk:A5.404StormRecoveryBondsMember2024-04-300001326160duk:A4.85January20242024NotesDueJanuary2027Memberus-gaap:UnsecuredDebtMember2024-03-310001326160duk:A4.85January20242024NotesDueJanuary2027Memberus-gaap:UnsecuredDebtMemberduk:DukeEnergyParentMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:A4.85January20242024NotesDueJanuary2027Memberus-gaap:UnsecuredDebtMember2024-03-310001326160duk:A4.85January20242024NotesDueJanuary2027Memberduk:DukeEnergyProgressMemberus-gaap:UnsecuredDebtMember2024-03-310001326160duk:A4.85January20242024NotesDueJanuary2029Memberus-gaap:UnsecuredDebtMember2024-03-310001326160duk:A4.85January20242024NotesDueJanuary2029Memberus-gaap:UnsecuredDebtMemberduk:DukeEnergyParentMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:A4.85January20242024NotesDueJanuary2029Memberus-gaap:UnsecuredDebtMember2024-03-310001326160duk:A4.85January20242024NotesDueJanuary2029Memberduk:DukeEnergyProgressMemberus-gaap:UnsecuredDebtMember2024-03-310001326160duk:A4.85January2024NotesDueJanuary2034Memberus-gaap:FirstMortgageMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:A4.85January2024NotesDueJanuary2034Memberus-gaap:FirstMortgageMember2024-03-310001326160duk:A4.85January2024NotesDueJanuary2034Memberus-gaap:FirstMortgageMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:A4.85January2024NotesDueJanuary2034Memberus-gaap:FirstMortgageMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberduk:A4.85January2024NotesDueJanuary2034Memberus-gaap:FirstMortgageMember2024-03-310001326160us-gaap:FirstMortgageMemberduk:A5.40January2024NotesDueJanuary2054Member2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FirstMortgageMemberduk:A5.40January2024NotesDueJanuary2054Member2024-03-310001326160us-gaap:FirstMortgageMemberduk:DukeEnergyProgressMemberduk:A5.40January2024NotesDueJanuary2054Member2024-03-310001326160us-gaap:FirstMortgageMemberduk:DukeEnergyOhioMemberduk:A5.40January2024NotesDueJanuary2054Member2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FirstMortgageMemberduk:A5.40January2024NotesDueJanuary2054Member2024-03-310001326160us-gaap:FirstMortgageMemberduk:A5.25March2024NotesDueMarch2034Member2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FirstMortgageMemberduk:A5.25March2024NotesDueMarch2034Member2024-03-310001326160us-gaap:FirstMortgageMemberduk:DukeEnergyProgressMemberduk:A5.25March2024NotesDueMarch2034Member2024-03-310001326160us-gaap:FirstMortgageMemberduk:DukeEnergyOhioMemberduk:A5.25March2024NotesDueMarch2034Member2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FirstMortgageMemberduk:A5.25March2024NotesDueMarch2034Member2024-03-310001326160duk:A5.10March2024NotesDueMarch2034Memberus-gaap:FirstMortgageMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:A5.10March2024NotesDueMarch2034Memberus-gaap:FirstMortgageMember2024-03-310001326160duk:A5.10March2024NotesDueMarch2034Memberus-gaap:FirstMortgageMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:A5.10March2024NotesDueMarch2034Memberus-gaap:FirstMortgageMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberduk:A5.10March2024NotesDueMarch2034Memberus-gaap:FirstMortgageMember2024-03-310001326160us-gaap:FirstMortgageMemberduk:A5.55March2024NotesDueMarch2054Member2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:A5.55March2024NotesDueMarch2054Memberus-gaap:FirstMortgageMember2024-03-310001326160duk:A5.55March2024NotesDueMarch2054Memberus-gaap:FirstMortgageMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:A5.55March2024NotesDueMarch2054Memberus-gaap:FirstMortgageMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberduk:A5.55March2024NotesDueMarch2054Memberus-gaap:FirstMortgageMember2024-03-310001326160duk:MaturitiesDueMarch2024Member2024-01-012024-03-310001326160duk:DebtMaturingApril2024375CouponMemberus-gaap:UnsecuredDebtMemberduk:DukeEnergyParentMember2024-03-310001326160duk:A6.395NotesDueApril2024Memberduk:DukeEnergyFloridaMemberus-gaap:SecuredDebtMember2024-03-310001326160duk:DukeEnergyFloridaMemberduk:A6.226NotesDueApril2024Memberus-gaap:SecuredDebtMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:A6.176NotesDueJanuary2025Memberus-gaap:SecuredDebtMember2024-03-310001326160duk:A4.922NotesDueOctober2073Memberus-gaap:FirstMortgageMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:OtherDebtSecuritiesMember2024-03-310001326160duk:DEFRAccountsReceivableSecuritizationFacilityMaturingApril2024Memberus-gaap:SubsequentEventMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMemberus-gaap:SecuredDebtMember2024-04-012024-04-300001326160duk:A4.922NotesDueOctober2073Memberus-gaap:FirstMortgageMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160us-gaap:RevolvingCreditFacilityMember2024-03-310001326160srt:ParentCompanyMemberus-gaap:RevolvingCreditFacilityMemberduk:DukeEnergyParentMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:RevolvingCreditFacilityMember2024-03-310001326160us-gaap:RevolvingCreditFacilityMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:RevolvingCreditFacilityMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:RevolvingCreditFacilityMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:RevolvingCreditFacilityMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:RevolvingCreditFacilityMember2024-03-310001326160duk:ProceedsLoanedToSubsidiaryRegistrantsMembersrt:ParentCompanyMemberus-gaap:RevolvingCreditFacilityMember2024-03-310001326160us-gaap:LineOfCreditMemberduk:DukeEnergyTermLoanFacilityMemberduk:DukeEnergyParentMember2024-03-262024-03-260001326160us-gaap:LineOfCreditMemberduk:DukeEnergyTermLoanFacilityMemberduk:DukeEnergyParentMember2024-03-260001326160us-gaap:LineOfCreditMemberus-gaap:SubsequentEventMemberduk:DukeEnergyTermLoanFacilityMemberduk:DukeEnergyParentMember2024-04-242024-04-240001326160duk:A425ConvertibleSeniorNotesDueApril2026Memberduk:DukeEnergyParentMember2023-04-012023-04-300001326160duk:ElectricUtilitiesandInfrastructureMember2023-12-310001326160duk:ElectricUtilitiesandInfrastructureMember2024-03-310001326160duk:GasUtilitiesandInfrastructureMember2024-03-310001326160duk:GasUtilitiesandInfrastructureMember2023-12-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2024-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2023-12-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMember2023-12-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMember2024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMemberduk:IndemnificationCoveragesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMemberduk:IndemnificationCoveragesMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:JointDispatchAgreementMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:JointDispatchAgreementMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMemberduk:IntercompanyNaturalGasTransactionsMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMemberduk:IntercompanyNaturalGasTransactionsMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:ProgressEnergyMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:ProgressEnergyMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:ProgressEnergyMemberduk:IndemnificationCoveragesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:ProgressEnergyMemberduk:IndemnificationCoveragesMember2023-01-012023-03-310001326160duk:ProgressEnergyMemberduk:DukeEnergyCarolinasMemberduk:JointDispatchAgreementMember2024-01-012024-03-310001326160duk:ProgressEnergyMemberduk:DukeEnergyCarolinasMemberduk:JointDispatchAgreementMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:IntercompanyNaturalGasTransactionsMemberduk:ProgressEnergyMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:IntercompanyNaturalGasTransactionsMemberduk:ProgressEnergyMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyProgressMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyProgressMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:IndemnificationCoveragesMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:IndemnificationCoveragesMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:JointDispatchAgreementMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:JointDispatchAgreementMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:IntercompanyNaturalGasTransactionsMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:IntercompanyNaturalGasTransactionsMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyFloridaMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyFloridaMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyFloridaMemberduk:IndemnificationCoveragesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyFloridaMemberduk:IndemnificationCoveragesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyOhioMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyOhioMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyOhioMemberduk:IndemnificationCoveragesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyOhioMemberduk:IndemnificationCoveragesMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:RelatedPartyMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:RelatedPartyMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:RelatedPartyMemberduk:IndemnificationCoveragesMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:RelatedPartyMemberduk:IndemnificationCoveragesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMemberduk:CorporateGovernanceAndSharedServiceExpensesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMemberduk:IndemnificationCoveragesMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMemberduk:IndemnificationCoveragesMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMemberduk:IntercompanyNaturalGasTransactionsMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMemberduk:IntercompanyNaturalGasTransactionsMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:NaturalGasStorageAndTransportationCostsMemberduk:PiedmontNaturalGasMember2024-01-012024-03-310001326160us-gaap:RelatedPartyMemberduk:NaturalGasStorageAndTransportationCostsMemberduk:PiedmontNaturalGasMember2023-01-012023-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMember2024-03-310001326160us-gaap:RelatedPartyMemberduk:ProgressEnergyMember2024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:RelatedPartyMember2024-03-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMember2024-03-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyCarolinasMember2023-12-310001326160us-gaap:RelatedPartyMemberduk:ProgressEnergyMember2023-12-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:RelatedPartyMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:RelatedPartyMember2023-12-310001326160us-gaap:RelatedPartyMemberduk:PiedmontNaturalGasMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2024-03-310001326160us-gaap:InterestRateContractMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2023-12-310001326160us-gaap:InterestRateContractMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2023-12-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2024-01-012024-03-31utr:GWh0001326160duk:DukeEnergyCarolinasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberduk:ProgressEnergyMemberus-gaap:ElectricTransmissionMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2024-01-012024-03-31utr:Mcf0001326160duk:DukeEnergyCarolinasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberduk:ProgressEnergyMemberus-gaap:GasDistributionMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2024-01-012024-03-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2023-01-012023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2023-01-012023-12-310001326160us-gaap:PriceRiskDerivativeMemberduk:ProgressEnergyMemberus-gaap:ElectricTransmissionMember2023-01-012023-12-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMemberduk:DukeEnergyProgressMember2023-01-012023-12-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMemberduk:DukeEnergyOhioMember2023-01-012023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2023-01-012023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:ElectricTransmissionMember2023-01-012023-12-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2023-01-012023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2023-01-012023-12-310001326160us-gaap:PriceRiskDerivativeMemberduk:ProgressEnergyMemberus-gaap:GasDistributionMember2023-01-012023-12-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMemberduk:DukeEnergyProgressMember2023-01-012023-12-310001326160us-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMemberduk:DukeEnergyOhioMember2023-01-012023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2023-01-012023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:PriceRiskDerivativeMemberus-gaap:GasDistributionMember2023-01-012023-12-310001326160duk:SeniorNotes310DueJune2028Memberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2024-03-310001326160duk:SeniorNotes310DueJune2028Memberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2024-01-012024-03-310001326160duk:SeniorNotes310DueJune2028Memberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2023-01-012023-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:SeniorNotes385DueJune2034Member2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:SeniorNotes385DueJune2034Member2024-01-012024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:SeniorNotes385DueJune2034Member2023-01-012023-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2024-01-012024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2023-01-012023-03-310001326160us-gaap:SubsequentEventMemberduk:SeniorNotes3.75PercentDue2031Memberus-gaap:UnsecuredDebtMemberduk:DukeEnergyParentMember2024-04-300001326160us-gaap:SubsequentEventMemberduk:SeniorNotes3.75PercentDue2031USDollarConvertedMemberus-gaap:UnsecuredDebtMemberduk:DukeEnergyParentMember2024-04-300001326160us-gaap:SubsequentEventMemberduk:SeniorNotes3.75PercentDue2031USDollarConvertedMemberus-gaap:UnsecuredDebtMember2024-04-300001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:ProgressEnergyMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:PiedmontNaturalGasMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:CommodityContractMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:CommodityContractMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:CommodityContractMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:DukeEnergyFloridaMemberus-gaap:CommodityContractMember2024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:CommodityContractMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:CommodityContractMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:ForeignExchangeContractMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ForeignExchangeContractMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:ForeignExchangeContractMember2024-03-310001326160us-gaap:ForeignExchangeContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:ForeignExchangeContractMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:ForeignExchangeContractMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ForeignExchangeContractMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ForeignExchangeContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:ProgressEnergyMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:PiedmontNaturalGasMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:CommodityContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:CommodityContractMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:CommodityContractMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:CommodityContractMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:DukeEnergyFloridaMemberus-gaap:CommodityContractMember2023-12-310001326160duk:DukeEnergyOhioMemberus-gaap:CommodityContractMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:CommodityContractMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyOhioMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160us-gaap:ForeignExchangeContractMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ForeignExchangeContractMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:ForeignExchangeContractMember2023-12-310001326160us-gaap:ForeignExchangeContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:ForeignExchangeContractMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:ForeignExchangeContractMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:ForeignExchangeContractMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:ForeignExchangeContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:CommodityContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyFloridaMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyOhioMemberus-gaap:CommodityContractMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:CommodityContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:NondesignatedMemberduk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:InterestRateContractMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyCarolinasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:ProgressEnergyMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyFloridaMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberduk:DukeEnergyOhioMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:DukeEnergyIndianaMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:DesignatedAsHedgingInstrumentMemberduk:PiedmontNaturalGasMemberus-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:OtherCurrentAssetsMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentAssetsMember2024-03-310001326160us-gaap:OtherCurrentAssetsMemberduk:ProgressEnergyMember2024-03-310001326160us-gaap:OtherCurrentAssetsMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:OtherCurrentAssetsMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:OtherCurrentAssetsMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherCurrentAssetsMember2024-03-310001326160us-gaap:OtherCurrentAssetsMemberduk:PiedmontNaturalGasMember2024-03-310001326160us-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:DukeEnergyFloridaMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentAssetsMember2024-03-310001326160us-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:DukeEnergyFloridaMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:OtherCurrentLiabilitiesMember2024-03-310001326160us-gaap:OtherNoncurrentLiabilitiesMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMember2024-03-310001326160us-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherNoncurrentLiabilitiesMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMember2024-03-310001326160us-gaap:OtherCurrentAssetsMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentAssetsMember2023-12-310001326160us-gaap:OtherCurrentAssetsMemberduk:ProgressEnergyMember2023-12-310001326160us-gaap:OtherCurrentAssetsMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:OtherCurrentAssetsMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:OtherCurrentAssetsMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherCurrentAssetsMember2023-12-310001326160us-gaap:OtherCurrentAssetsMemberduk:PiedmontNaturalGasMember2023-12-310001326160us-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:DukeEnergyProgressMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:DukeEnergyFloridaMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:DukeEnergyOhioMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentAssetsMember2023-12-310001326160us-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyProgressMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyFloridaMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyOhioMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:OtherCurrentLiabilitiesMember2023-12-310001326160us-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160us-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:OtherNoncurrentLiabilitiesMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:OtherNoncurrentLiabilitiesMember2023-12-310001326160duk:NdtfMember2024-03-310001326160duk:NdtfMember2023-12-310001326160duk:NdtfMemberus-gaap:CorporateDebtSecuritiesMember2024-03-310001326160duk:NdtfMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001326160duk:NdtfMemberus-gaap:MunicipalBondsMember2024-03-310001326160duk:NdtfMemberus-gaap:MunicipalBondsMember2023-12-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMember2024-03-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMember2023-12-310001326160duk:NdtfMemberus-gaap:OtherDebtSecuritiesMember2024-03-310001326160duk:NdtfMemberus-gaap:OtherDebtSecuritiesMember2023-12-310001326160duk:OtherClassificationMember2024-03-310001326160duk:OtherClassificationMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:CorporateDebtSecuritiesMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:MunicipalBondsMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:MunicipalBondsMember2023-12-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:OtherClassificationMember2024-03-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:OtherClassificationMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:OtherDebtSecuritiesMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:OtherDebtSecuritiesMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:CorporateDebtSecuritiesMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:MunicipalBondsMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:MunicipalBondsMember2023-12-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:DukeEnergyCarolinasMemberduk:NdtfMember2024-03-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:DukeEnergyCarolinasMemberduk:NdtfMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:OtherDebtSecuritiesMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:OtherDebtSecuritiesMember2023-12-310001326160duk:NdtfMemberduk:ProgressEnergyMember2024-03-310001326160duk:NdtfMemberduk:ProgressEnergyMember2023-12-310001326160duk:NdtfMemberduk:ProgressEnergyMemberus-gaap:CorporateDebtSecuritiesMember2024-03-310001326160duk:NdtfMemberduk:ProgressEnergyMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001326160duk:NdtfMemberus-gaap:MunicipalBondsMemberduk:ProgressEnergyMember2024-03-310001326160duk:NdtfMemberus-gaap:MunicipalBondsMemberduk:ProgressEnergyMember2023-12-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMemberduk:ProgressEnergyMember2024-03-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMemberduk:ProgressEnergyMember2023-12-310001326160duk:NdtfMemberduk:ProgressEnergyMemberus-gaap:OtherDebtSecuritiesMember2024-03-310001326160duk:NdtfMemberduk:ProgressEnergyMemberus-gaap:OtherDebtSecuritiesMember2023-12-310001326160duk:OtherClassificationMemberduk:ProgressEnergyMember2024-03-310001326160duk:OtherClassificationMemberduk:ProgressEnergyMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:MunicipalBondsMemberduk:ProgressEnergyMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:MunicipalBondsMemberduk:ProgressEnergyMember2023-12-310001326160duk:NdtfMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:NdtfMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:NdtfMemberus-gaap:CorporateDebtSecuritiesMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:NdtfMemberus-gaap:CorporateDebtSecuritiesMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:NdtfMemberus-gaap:MunicipalBondsMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:NdtfMemberus-gaap:MunicipalBondsMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:NdtfMemberus-gaap:OtherDebtSecuritiesMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:NdtfMemberus-gaap:OtherDebtSecuritiesMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:OtherClassificationMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:OtherClassificationMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:NdtfMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:NdtfMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:NdtfMemberus-gaap:CorporateDebtSecuritiesMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:NdtfMemberus-gaap:CorporateDebtSecuritiesMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:USTreasuryAndGovernmentMemberduk:NdtfMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:NdtfMemberduk:DukeEnergyFloridaMemberus-gaap:OtherDebtSecuritiesMember2024-03-310001326160duk:NdtfMemberduk:DukeEnergyFloridaMemberus-gaap:OtherDebtSecuritiesMember2023-12-310001326160duk:OtherClassificationMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:OtherClassificationMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:MunicipalBondsMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:MunicipalBondsMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMember2024-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMember2023-12-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:CorporateDebtSecuritiesMember2024-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:MunicipalBondsMember2024-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:MunicipalBondsMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:USTreasuryAndGovernmentMemberduk:OtherClassificationMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:USTreasuryAndGovernmentMemberduk:OtherClassificationMember2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel3Member2024-03-310001326160duk:NdtfMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160duk:NDTFEquitySecuritiesMember2024-03-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160us-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMember2024-03-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel3Member2024-03-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel3Member2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160us-gaap:FairValueInputsLevel1Member2024-03-310001326160us-gaap:FairValueInputsLevel2Member2024-03-310001326160us-gaap:FairValueInputsLevel3Member2024-03-310001326160us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Member2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel3Member2023-12-310001326160duk:NdtfMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-12-310001326160duk:NDTFEquitySecuritiesMember2023-12-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160us-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMember2023-12-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-12-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Member2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel3Member2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-12-310001326160us-gaap:FairValueInputsLevel1Member2023-12-310001326160us-gaap:FairValueInputsLevel2Member2023-12-310001326160us-gaap:FairValueInputsLevel3Member2023-12-310001326160us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NDTFEquitySecuritiesMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NDTFEquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:OtherClassificationMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:OtherClassificationMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2024-03-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:FairValueInputsLevel2Member2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NdtfMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NDTFEquitySecuritiesMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMember2023-12-310001326160duk:DukeEnergyCarolinasMemberduk:NDTFEquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueInputsLevel2Member2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-12-310001326160duk:NdtfMemberduk:ProgressEnergyMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMember2024-03-310001326160duk:NdtfMemberduk:ProgressEnergyMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMember2023-12-310001326160duk:ProgressEnergyMemberduk:NDTFEquitySecuritiesMember2024-03-310001326160duk:ProgressEnergyMemberduk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160us-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMemberduk:NDTFEquitySecuritiesMember2024-03-310001326160duk:ProgressEnergyMemberduk:NDTFEquitySecuritiesMember2023-12-310001326160duk:ProgressEnergyMemberduk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160us-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMemberduk:NDTFEquitySecuritiesMember2023-12-310001326160duk:OtherClassificationMemberduk:ProgressEnergyMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMember2024-03-310001326160duk:OtherClassificationMemberduk:ProgressEnergyMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160us-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160us-gaap:FairValueInputsLevel2Memberduk:ProgressEnergyMember2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyProgressMember2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyProgressMember2023-12-310001326160duk:NDTFEquitySecuritiesMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:NDTFEquitySecuritiesMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyProgressMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:FairValueInputsLevel2Memberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:FairValueInputsLevel1Memberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:FairValueInputsLevel2Memberduk:DukeEnergyProgressMember2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyFloridaMember2024-03-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2023-12-310001326160duk:NdtfMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyFloridaMember2023-12-310001326160duk:NDTFEquitySecuritiesMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:NDTFEquitySecuritiesMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:NDTFEquitySecuritiesMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:FairValueInputsLevel2Memberduk:NDTFEquitySecuritiesMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyFloridaMember2024-03-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2023-12-310001326160duk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Memberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:FairValueInputsLevel2Memberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:FairValueInputsLevel1Memberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:FairValueInputsLevel2Memberduk:DukeEnergyFloridaMember2023-12-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel3Member2024-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel2Member2023-12-310001326160duk:DukeEnergyIndianaMemberduk:OtherClassificationMemberus-gaap:FairValueInputsLevel3Member2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FairValueInputsLevel3Member2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:FairValueInputsLevel2Member2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:FairValueInputsLevel3Member2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:FairValueInputsLevel1Member2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:FairValueInputsLevel2Member2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:FairValueInputsLevel1Member2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:FairValueInputsLevel2Member2023-12-310001326160us-gaap:MarketApproachValuationTechniqueMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-310001326160us-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-31iso4217:USDutr:MWh0001326160srt:MaximumMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-310001326160srt:WeightedAverageMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-310001326160duk:DukeEnergyIndianaMembersrt:MaximumMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-310001326160duk:DukeEnergyIndianaMembersrt:WeightedAverageMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2024-03-310001326160us-gaap:MarketApproachValuationTechniqueMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160us-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160srt:MaximumMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160srt:WeightedAverageMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DukeEnergyOhioMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160duk:DukeEnergyIndianaMembersrt:MaximumMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160duk:DukeEnergyIndianaMembersrt:WeightedAverageMemberus-gaap:MarketApproachValuationTechniqueMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMember2023-12-310001326160us-gaap:CarryingReportedAmountFairValueDisclosureMember2024-03-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMember2024-03-310001326160us-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-03-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyCarolinasMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyCarolinasMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-03-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:ProgressEnergyMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:ProgressEnergyMember2023-12-310001326160us-gaap:CarryingReportedAmountFairValueDisclosureMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:CarryingReportedAmountFairValueDisclosureMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:DukeEnergyFloridaMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-03-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:DukeEnergyFloridaMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyFloridaMember2023-12-310001326160duk:DukeEnergyOhioMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-03-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyOhioMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-03-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:PiedmontNaturalGasMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001326160us-gaap:EstimateOfFairValueFairValueDisclosureMemberduk:PiedmontNaturalGasMember2023-12-310001326160duk:PiedmontNaturalGasAndProgressEnergyMember2024-03-310001326160duk:PiedmontNaturalGasAndProgressEnergyMember2023-12-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-01-012023-12-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-01-012024-03-310001326160us-gaap:SubsequentEventMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMemberduk:DefrMember2024-04-010001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-03-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-03-012024-03-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-02-290001326160duk:CinergyReceivablesMemberduk:DukeEnergyIndianaMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-02-290001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2024-02-290001326160duk:DukeEnergyCarolinasMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DERFMember2024-03-310001326160duk:DeprMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMemberduk:DefrMember2024-03-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DERFMember2023-12-310001326160duk:DeprMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMemberduk:DefrMember2023-12-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DEFPFMember2024-01-012024-03-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMemberduk:DEFPFMember2024-03-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMemberduk:DEFPFMember2023-12-310001326160duk:DECNCSFMemberduk:DukeEnergyCarolinasMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-11-012021-11-300001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DEPNCSFMemberduk:DukeEnergyProgressMember2021-11-012021-11-300001326160duk:DECNCSFAndDEPNCSFMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-01-012024-03-310001326160duk:DECNCSFMemberduk:DukeEnergyCarolinasMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-03-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DEPNCSFMemberduk:DukeEnergyProgressMember2024-03-310001326160duk:DECNCSFMemberduk:DukeEnergyCarolinasMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-12-310001326160us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DEPNCSFMemberduk:DukeEnergyProgressMember2023-12-310001326160duk:DEFProCoMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2024-01-012024-03-310001326160duk:DEFProCoMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMember2024-03-310001326160duk:DEFProCoMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2024-01-012024-03-310001326160srt:AffiliatedEntityMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:PipelineInvestmentsMember2024-03-310001326160srt:AffiliatedEntityMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMembersrt:AffiliatedEntityMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2024-03-310001326160us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:PipelineInvestmentsMember2024-03-310001326160us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2024-03-310001326160srt:AffiliatedEntityMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:PipelineInvestmentsMember2023-12-310001326160srt:AffiliatedEntityMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMembersrt:AffiliatedEntityMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-12-310001326160us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:PipelineInvestmentsMember2023-12-310001326160us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-12-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2024-01-012024-03-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:CinergyReceivablesMemberduk:DukeEnergyIndianaMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2024-03-310001326160duk:CinergyReceivablesMemberduk:DukeEnergyIndianaMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-12-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:CinergyReceivablesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:CinergyReceivablesMemberduk:DukeEnergyIndianaMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2024-01-012024-03-310001326160duk:CinergyReceivablesMemberduk:DukeEnergyIndianaMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-01-012023-03-3100013261602024-04-01duk:ProgressEnergyMember2024-03-3100013261602025-01-01duk:ProgressEnergyMember2024-03-310001326160duk:ProgressEnergyMember2026-01-012024-03-310001326160duk:ProgressEnergyMember2027-01-012024-03-3100013261602028-01-01duk:ProgressEnergyMember2024-03-310001326160duk:ProgressEnergyMember2029-01-012024-03-3100013261602024-04-01duk:DukeEnergyProgressMember2024-03-3100013261602025-01-01duk:DukeEnergyProgressMember2024-03-3100013261602026-01-01duk:DukeEnergyProgressMember2024-03-3100013261602027-01-01duk:DukeEnergyProgressMember2024-03-3100013261602028-01-01duk:DukeEnergyProgressMember2024-03-310001326160duk:DukeEnergyProgressMember2029-01-012024-03-3100013261602024-04-01duk:DukeEnergyFloridaMember2024-03-3100013261602025-01-01duk:DukeEnergyFloridaMember2024-03-3100013261602026-01-01duk:DukeEnergyFloridaMember2024-03-3100013261602027-01-01duk:DukeEnergyFloridaMember2024-03-3100013261602028-01-01duk:DukeEnergyFloridaMember2024-03-310001326160duk:DukeEnergyFloridaMember2029-01-012024-03-310001326160duk:DukeEnergyIndianaMember2024-04-012024-03-310001326160duk:DukeEnergyIndianaMember2025-01-012024-03-310001326160duk:DukeEnergyIndianaMember2026-01-012024-03-310001326160duk:DukeEnergyIndianaMember2027-01-012024-03-310001326160duk:DukeEnergyIndianaMember2028-01-012024-03-310001326160duk:DukeEnergyIndianaMember2029-01-012024-03-3100013261602024-04-01duk:PiedmontNaturalGasMember2024-03-3100013261602025-01-01duk:PiedmontNaturalGasMember2024-03-310001326160duk:PiedmontNaturalGasMember2026-01-012024-03-310001326160duk:PiedmontNaturalGasMember2027-01-012024-03-3100013261602028-01-01duk:PiedmontNaturalGasMember2024-03-310001326160duk:PiedmontNaturalGasMember2029-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:ProgressEnergyMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberduk:GeneralMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberduk:IndustrialMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberduk:WholesaleMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2024-01-012024-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2024-01-012024-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberduk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2024-01-012024-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberduk:ElectricUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyProgressMemberduk:CommercialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyFloridaMemberduk:CommercialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyOhioMemberduk:CommercialMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:ProgressEnergyMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberduk:OtherRevenuesMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMember2024-01-012024-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMember2024-01-012024-03-310001326160duk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:ProgressEnergyMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:DukeEnergyProgressMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:DukeEnergyFloridaMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:DukeEnergyOhioMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberduk:CorporateAndReconcilingItemsMember2024-01-012024-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:ProgressEnergyMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ResidentialMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberduk:GeneralMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:GeneralMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberduk:IndustrialMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:IndustrialMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberduk:WholesaleMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160us-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:ElectricityUsRegulatedMemberduk:ElectricUtilitiesandInfrastructureMemberduk:WholesaleMember2023-01-012023-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2023-01-012023-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberduk:OtherRevenuesMemberduk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2023-01-012023-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:ElectricUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberduk:ElectricUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberduk:ResidentialMemberus-gaap:NaturalGasUsRegulatedMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyProgressMemberduk:CommercialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyFloridaMemberduk:CommercialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:DukeEnergyOhioMemberduk:CommercialMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberus-gaap:NaturalGasUsRegulatedMemberduk:CommercialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberus-gaap:NaturalGasUsRegulatedMemberduk:IndustrialMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberus-gaap:NaturalGasUsRegulatedMemberduk:PowerGenerationMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:ProgressEnergyMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMemberduk:OtherRevenuesMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMemberduk:OtherRevenuesMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:GasUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:ProgressEnergyMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:GasUtilitiesandInfrastructureMember2023-01-012023-03-310001326160duk:GasUtilitiesandInfrastructureMemberduk:PiedmontNaturalGasMember2023-01-012023-03-310001326160duk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:ProgressEnergyMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:DukeEnergyProgressMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:DukeEnergyFloridaMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:DukeEnergyOhioMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberduk:CorporateAndReconcilingItemsMember2023-01-012023-03-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:ProgressEnergyMember2024-03-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:PiedmontNaturalGasMember2024-03-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-03-310001326160duk:ProgressEnergyMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberduk:DukeEnergyProgressMember2024-03-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberduk:DukeEnergyFloridaMember2024-03-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberduk:DukeEnergyOhioMember2024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-03-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2023-12-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:FinancingReceivables1To29DaysPastDueMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:FinancingReceivables1To29DaysPastDueMember2023-12-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:FinancingReceivables30To59DaysPastDueMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:ProgressEnergyMember2023-12-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310001326160us-gaap:FinancingReceivables60To89DaysPastDueMemberduk:PiedmontNaturalGasMember2023-12-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310001326160duk:DukeEnergyCarolinasMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310001326160duk:ProgressEnergyMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberduk:DukeEnergyProgressMember2023-12-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberduk:DukeEnergyFloridaMember2023-12-310001326160us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:DukeEnergyIndianaMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310001326160duk:PiedmontNaturalGasMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310001326160duk:CinergyReceivablesMemberduk:DukeEnergyOhioMember2023-12-310001326160duk:CinergyReceivablesMemberduk:DukeEnergyIndianaMember2023-12-310001326160us-gaap:SeriesAPreferredStockMember2024-01-012024-03-310001326160us-gaap:SeriesAPreferredStockMember2023-01-012023-03-310001326160us-gaap:SeriesBPreferredStockMember2024-01-012024-03-310001326160us-gaap:SeriesBPreferredStockMember2023-01-012023-03-3100013261602022-11-012022-11-300001326160srt:ProFormaMemberduk:EquityForwardsMember2024-03-310001326160srt:ProFormaMemberduk:EquityForwardsMember2024-03-012024-03-310001326160us-gaap:PensionPlansDefinedBenefitMember2024-01-012024-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:PensionPlansDefinedBenefitMember2024-01-012024-03-310001326160duk:ProgressEnergyMemberus-gaap:PensionPlansDefinedBenefitMember2024-01-012024-03-310001326160us-gaap:PensionPlansDefinedBenefitMemberduk:DukeEnergyProgressMember2024-01-012024-03-310001326160us-gaap:PensionPlansDefinedBenefitMemberduk:DukeEnergyFloridaMember2024-01-012024-03-310001326160us-gaap:PensionPlansDefinedBenefitMemberduk:DukeEnergyOhioMember2024-01-012024-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:PensionPlansDefinedBenefitMember2024-01-012024-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:PensionPlansDefinedBenefitMember2024-01-012024-03-310001326160us-gaap:PensionPlansDefinedBenefitMember2023-01-012023-03-310001326160duk:DukeEnergyCarolinasMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-03-310001326160duk:ProgressEnergyMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-03-310001326160us-gaap:PensionPlansDefinedBenefitMemberduk:DukeEnergyProgressMember2023-01-012023-03-310001326160us-gaap:PensionPlansDefinedBenefitMemberduk:DukeEnergyFloridaMember2023-01-012023-03-310001326160us-gaap:PensionPlansDefinedBenefitMemberduk:DukeEnergyOhioMember2023-01-012023-03-310001326160duk:DukeEnergyIndianaMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-03-310001326160duk:PiedmontNaturalGasMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-03-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 2024
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from _________to_________
Commission File NumberRegistrant, State of Incorporation or Organization,
Address of Principal Executive Offices, Zip Code and Telephone Number
IRS Employer Identification No.
dukeenergylogo4ca65.jpg
1-32853
DUKE ENERGY CORPORATION
20-2777218
(a Delaware corporation)
525 South Tryon Street
Charlotte, North Carolina 28202
800-488-3853
1-4928
DUKE ENERGY CAROLINAS, LLC
56-0205520
(a North Carolina limited liability company)
525 South Tryon Street
Charlotte, North Carolina 28202
800-488-3853
1-15929
PROGRESS ENERGY, INC.
56-2155481
(a North Carolina corporation)
411 Fayetteville Street
Raleigh, North Carolina 27601
800-488-3853
1-3382
DUKE ENERGY PROGRESS, LLC
56-0165465
(a North Carolina limited liability company)
411 Fayetteville Street
Raleigh, North Carolina 27601
800-488-3853
1-3274
DUKE ENERGY FLORIDA, LLC
59-0247770
(a Florida limited liability company)
299 First Avenue North
St. Petersburg, Florida 33701
800-488-3853
1-1232
DUKE ENERGY OHIO, INC.
31-0240030
(an Ohio corporation)
139 East Fourth Street
Cincinnati, Ohio 45202
800-488-3853
1-3543
DUKE ENERGY INDIANA, LLC
35-0594457
(an Indiana limited liability company)
1000 East Main Street
Plainfield, Indiana 46168
800-488-3853
1-6196
PIEDMONT NATURAL GAS COMPANY, INC.
56-0556998
(a North Carolina corporation)
525 South Tryon Street
Charlotte, North Carolina 28202
800-488-3853





SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
Name of each exchange on
Registrant    Title of each class    Trading symbols        which registered
Duke Energy    Common Stock, $0.001 par value    DUK    New York Stock Exchange LLC

Duke Energy    5.625% Junior Subordinated Debentures due    DUKB    New York Stock Exchange LLC
September 15, 2078
Duke Energy    Depositary Shares, each representing a 1/1,000th    DUK PR A    New York Stock Exchange LLC
interest in a share of 5.75% Series A Cumulative
Redeemable Perpetual Preferred Stock, par value
$0.001 per share
Duke Energy    3.10% Senior Notes due 2028    DUK 28A    New York Stock Exchange LLC        
Duke Energy    3.85% Senior Notes due 2034    DUK 34    New York Stock Exchange LLC
Duke Energy    3.75% Senior Notes due 2031    DUK 31A    New York Stock Exchange LLC
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Duke Energy Corporation (Duke Energy)YesNoDuke Energy Florida, LLC (Duke Energy Florida)YesNo
Duke Energy Carolinas, LLC (Duke Energy Carolinas)YesNoDuke Energy Ohio, Inc. (Duke Energy Ohio)YesNo
Progress Energy, Inc. (Progress Energy)YesNoDuke Energy Indiana, LLC (Duke Energy Indiana)YesNo
Duke Energy Progress, LLC (Duke Energy Progress)YesNoPiedmont Natural Gas Company, Inc. (Piedmont)YesNo
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
Duke EnergyYesNoDuke Energy FloridaYesNo
Duke Energy CarolinasYesNoDuke Energy OhioYesNo
Progress EnergyYesNoDuke Energy IndianaYesNo
Duke Energy ProgressYesNoPiedmontYesNo
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Duke EnergyLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
Duke Energy CarolinasLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
Progress EnergyLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
Duke Energy ProgressLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
Duke Energy FloridaLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
Duke Energy OhioLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
Duke Energy IndianaLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
PiedmontLarge Accelerated FilerAccelerated filerNon-accelerated FilerSmaller reporting companyEmerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Duke EnergyYes
NoDuke Energy FloridaYes
No
Duke Energy CarolinasYes
NoDuke Energy OhioYes
No
Progress EnergyYes
NoDuke Energy IndianaYes
No
Duke Energy ProgressYes
NoPiedmontYes
No



Number of shares of common stock outstanding at April 30, 2024:
RegistrantDescriptionShares
Duke EnergyCommon stock, $0.001 par value771,768,612
Duke Energy CarolinasAll of the registrant's limited liability company member interests are directly owned by Duke Energy.N/A
Progress EnergyAll of the registrant's common stock is directly owned by Duke Energy.100
Duke Energy ProgressAll of the registrant's limited liability company member interests are indirectly owned by Duke Energy.N/A
Duke Energy FloridaAll of the registrant's limited liability company member interests are indirectly owned by Duke Energy.N/A
Duke Energy OhioAll of the registrant's common stock is indirectly owned by Duke Energy.89,663,086
Duke Energy IndianaAll of the registrant's limited liability company member interests are owned by a Duke Energy subsidiary that is 80.1% indirectly owned by Duke Energy.N/A
PiedmontAll of the registrant's common stock is directly owned by Duke Energy.100
This combined Form 10-Q is filed separately by eight registrants: Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont (collectively the Duke Energy Registrants). Information contained herein relating to any individual registrant is filed by such registrant solely on its own behalf. Each registrant makes no representation as to information relating exclusively to the other registrants.
Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont meet the conditions set forth in General Instructions H(1)(a) and (b) of Form 10-Q and are therefore filing this form with the reduced disclosure format specified in General Instructions H(2) of Form 10-Q.



TABLE OF CONTENTS