エバジーの四半期報告

00017112690000054476000005450712/31Q1false2023http://fasb.org/us-gaap/2022#OtherAssetsCurrenthttp://fasb.org/us-gaap/2022#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2022#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2022#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2022#OtherAssetsCurrenthttp://fasb.org/us-gaap/2022#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2022#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2022#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2022#OtherAssetsCurrent http://fasb.org/us-gaap/2022#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2022#OtherLiabilitiesCurrent http://fasb.org/us-gaap/2022#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2022#OtherAssetsCurrenthttp://fasb.org/us-gaap/2022#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2022#OtherLiabilitiesCurrenthttp://。00017112692023-01-012023-03-310001711269evrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMember2023-01-012023-03-3100017112692023-04-28xbrli:shares0001711269evrg:EvergyKansasCentralIncMember2023-04-280001711269evrg:EvergyMetroIncMember2023-04-2800017112692023-03-31iso4217:USD00017112692022-12-310001711269us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-03-310001711269us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-3100017112692022-01-012022-03-31iso4217:USDxbrli:shares00017112692021-12-3100017112692022-03-310001711269us-gaap:CommonStockMember2021-12-310001711269us-gaap:RetainedEarningsMember2021-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310001711269us-gaap:NoncontrollingInterestMember2021-12-310001711269us-gaap:RetainedEarningsMember2022-01-012022-03-310001711269us-gaap:NoncontrollingInterestMember2022-01-012022-03-310001711269us-gaap:CommonStockMember2022-01-012022-03-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-03-310001711269us-gaap:CommonStockMember2022-03-310001711269us-gaap:RetainedEarningsMember2022-03-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-03-310001711269us-gaap:NoncontrollingInterestMember2022-03-310001711269us-gaap:CommonStockMember2022-12-310001711269us-gaap:RetainedEarningsMember2022-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310001711269us-gaap:NoncontrollingInterestMember2022-12-310001711269us-gaap:RetainedEarningsMember2023-01-012023-03-310001711269us-gaap:NoncontrollingInterestMember2023-01-012023-03-310001711269us-gaap:CommonStockMember2023-01-012023-03-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-03-310001711269us-gaap:CommonStockMember2023-03-310001711269us-gaap:RetainedEarningsMember2023-03-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-03-310001711269us-gaap:NoncontrollingInterestMember2023-03-310001711269evrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310001711269evrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:EvergyKansasCentralIncMember2021-12-310001711269evrg:EvergyKansasCentralIncMember2022-03-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2021-12-310001711269us-gaap:RetainedEarningsMemberevrg:EvergyKansasCentralIncMember2021-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2021-12-310001711269us-gaap:RetainedEarningsMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2022-03-310001711269us-gaap:RetainedEarningsMemberevrg:EvergyKansasCentralIncMember2022-03-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2022-03-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RetainedEarningsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RetainedEarningsMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:RetainedEarningsMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMember2023-03-310001711269evrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyMetroIncMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMember2021-12-310001711269evrg:EvergyMetroIncMember2022-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CommonStockMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CommonStockMember2022-03-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2022-03-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2022-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CommonStockMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CommonStockMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2023-03-310001711269evrg:EvergyKansasSouthIncMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-31evrg:subsidiary0001711269evrg:TransourceEnergyLLCMemberevrg:EvergyTransmissionCompanyLLCMember2023-03-31xbrli:pure0001711269evrg:TransourceEnergyLLCMemberevrg:AEPTransmissionHoldingCompanyLLCMember2023-03-310001711269evrg:PrairieWindTransmissionLLCMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:PrairieWindTransmissionLLCMember2023-01-012023-03-31utr:mievrg:kilovolt_lineutr:MWevrg:customerevrg:segment0001711269evrg:ElectricPlantInServiceMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricPlantInServiceMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricPlantInServiceMember2023-03-310001711269us-gaap:ConstructionInProgressMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ConstructionInProgressMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:ConstructionInProgressMember2023-03-310001711269us-gaap:NuclearFuelMember2023-03-310001711269us-gaap:NuclearFuelMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:NuclearFuelMemberevrg:EvergyMetroIncMember2023-03-310001711269evrg:PlantToBeRetiredMember2023-03-310001711269evrg:PlantToBeRetiredMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:PlantToBeRetiredMember2023-03-310001711269evrg:ElectricPlantInServiceMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricPlantInServiceMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricPlantInServiceMember2022-12-310001711269us-gaap:ConstructionInProgressMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ConstructionInProgressMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:ConstructionInProgressMember2022-12-310001711269us-gaap:NuclearFuelMember2022-12-310001711269us-gaap:NuclearFuelMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:NuclearFuelMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:PlantToBeRetiredMember2022-12-310001711269evrg:PlantToBeRetiredMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PlantToBeRetiredMember2022-12-310001711269srt:MaximumMemberus-gaap:WarrantMember2022-01-012022-03-310001711269srt:MaximumMemberus-gaap:WarrantMember2023-01-012023-03-310001711269us-gaap:CommonStockMemberus-gaap:SubsequentEventMember2023-05-012023-05-030001711269evrg:EvergyMetroIncMemberus-gaap:SubsequentEventMember2023-05-010001711269evrg:A2022OklahomaWindFarmPurchaseMember2022-08-092022-08-090001711269evrg:A2022OklahomaWindFarmPurchaseMember2022-08-090001711269evrg:ElectricUtilityCustomerClassResidentialMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassResidentialMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassCommercialMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassCommercialMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassIndustrialMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassIndustrialMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassWholesaleMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassWholesaleMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassTransmissionMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassTransmissionMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMember2022-01-012022-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2023-01-012023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassCommercialMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassCommercialMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassIndustrialMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassIndustrialMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassTotalElectricRetailMember2023-01-012023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassTotalElectricRetailMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassWholesaleMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassWholesaleMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassIndustrialSteamMember2023-01-012023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassIndustrialSteamMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2022-01-012022-03-310001711269evrg:ElectricUtilityCustomerClassCommercialMemberevrg:EvergyMetroIncMember2023-01-012023-03-310001711269evrg:ElectricUtilityCustomerClassCommercialMemberevrg:EvergyMetroIncMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassTotalElectricRetailMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassTotalElectricRetailMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassTransmissionMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassTransmissionMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassIndustrialSteamMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassIndustrialSteamMember2022-01-012022-03-310001711269us-gaap:BilledRevenuesMemberus-gaap:TradeAccountsReceivableMember2023-03-310001711269us-gaap:BilledRevenuesMemberus-gaap:TradeAccountsReceivableMember2022-12-310001711269us-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2023-03-310001711269us-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2022-12-310001711269us-gaap:BilledRevenuesMemberevrg:EvergyKansasCentralIncMemberus-gaap:TradeAccountsReceivableMember2023-03-310001711269us-gaap:BilledRevenuesMemberevrg:EvergyKansasCentralIncMemberus-gaap:TradeAccountsReceivableMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2022-12-310001711269us-gaap:BilledRevenuesMemberevrg:EvergyMetroIncMemberus-gaap:TradeAccountsReceivableMember2023-03-310001711269us-gaap:BilledRevenuesMemberevrg:EvergyMetroIncMemberus-gaap:TradeAccountsReceivableMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:BorrowingsFromMidOctoberThroughMidJuneMember2023-03-310001711269evrg:BorrowingFromMidJuneThroughMidOctoberMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:BorrowingsFromMidNovemberThroughMidJuneMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:BorrowingFromMidJuneThroughMidNovemberMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:SubsequentEventMemberevrg:A2023RateCaseProceedingsMember2023-04-012023-04-300001711269evrg:EvergyMetroIncMemberus-gaap:SubsequentEventMemberevrg:A2023RateCaseProceedingsMember2023-04-012023-04-300001711269evrg:EvergyKansasCentralIncMemberus-gaap:SubsequentEventMemberevrg:A2023RateCaseProceedingsMember2023-04-300001711269evrg:TransmissionDeliveryChargeMemberevrg:KansasCorporationCommissionMemberevrg:EvergyKansasCentralIncMemberus-gaap:SubsequentEventMember2023-05-012023-05-310001711269evrg:EvergyMetroIncMemberevrg:TransmissionDeliveryChargeMemberevrg:KansasCorporationCommissionMemberus-gaap:SubsequentEventMember2023-05-012023-05-310001711269evrg:EvergyMetroIncMemberevrg:A2018RateCaseProceedingsMemberevrg:KansasCorporationCommissionMember2023-01-012023-03-310001711269evrg:A2018RateCaseProceedingsMemberevrg:KansasCorporationCommissionMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:A2018RateCaseProceedingsMemberevrg:KansasCorporationCommissionMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:A2018RateCaseProceedingsMemberevrg:KansasCorporationCommissionMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:MissouriPublicServiceCommissionMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:MissouriPublicServiceCommissionMember2023-01-012023-03-310001711269evrg:A2021MPSCWinterWeatherQualifiedExtraordinaryCostsSecuritizationMember2023-01-012023-03-310001711269srt:MaximumMemberevrg:A2021MPSCWinterWeatherQualifiedExtraordinaryCostsSecuritizationMember2023-01-012023-03-310001711269evrg:A2021WinterWeatherQualifiedExtraordinaryCostsSecuritizationMemberevrg:EvergyMissouriWestIncMemberevrg:A2021MPSCWinterWeatherQualifiedExtraordinaryCostsSecuritizationMember2023-03-310001711269evrg:A2021WinterWeatherQualifiedExtraordinaryCostsSecuritizationMemberevrg:EvergyMissouriWestIncMemberevrg:A2021MPSCWinterWeatherQualifiedExtraordinaryCostsSecuritizationMember2022-12-310001711269evrg:FERC2023TFRProceedingMemberevrg:EvergyKansasCentralIncMemberevrg:FederalEnergyRegulatoryCommissionMember2023-01-012023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:FERC2022TFRProceedingMemberevrg:FederalEnergyRegulatoryCommissionMember2023-01-012023-03-310001711269evrg:TFRRevenuesForRefundMemberevrg:FERC2023TFRProceedingMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:FERC2023TFRProceedingMemberevrg:FederalEnergyRegulatoryCommissionMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:FERC2022TFRProceedingMemberevrg:FederalEnergyRegulatoryCommissionMember2023-01-012023-03-310001711269us-gaap:JointlyOwnedNuclearPowerPlantMember2023-03-310001711269evrg:EvergyKansasSouthIncMemberus-gaap:JointlyOwnedNuclearPowerPlantMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:JointlyOwnedNuclearPowerPlantMember2023-03-310001711269us-gaap:PensionPlansDefinedBenefitMember2023-01-012023-03-310001711269us-gaap:PensionPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269us-gaap:PensionPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-01-012023-03-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-01-012023-03-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-01-012023-03-310001711269us-gaap:PensionPlansDefinedBenefitMember2022-01-012022-03-310001711269us-gaap:PensionPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269us-gaap:PensionPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-01-012022-03-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-01-012022-03-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-01-012022-03-310001711269us-gaap:PensionPlansDefinedBenefitMember2023-03-310001711269us-gaap:PensionPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:PensionPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-03-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-03-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-03-310001711269us-gaap:RevolvingCreditFacilityMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:RevolvingCreditFacilityMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:RevolvingCreditFacilityMember2023-03-310001711269us-gaap:RevolvingCreditFacilityMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMember2023-03-310001711269us-gaap:CommercialPaperMemberevrg:EvergyMember2023-03-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMember2023-03-310001711269us-gaap:RevolvingCreditFacilityMemberevrg:EvergyMember2023-03-310001711269us-gaap:CommercialPaperMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:StandbyLettersOfCreditMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CommercialPaperMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:StandbyLettersOfCreditMember2023-03-310001711269evrg:EvergyMissouriWestIncMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:CommercialPaperMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:StandbyLettersOfCreditMember2023-03-310001711269us-gaap:CommercialPaperMember2023-03-310001711269us-gaap:StandbyLettersOfCreditMember2023-03-310001711269evrg:EvergyMember2022-12-310001711269us-gaap:CommercialPaperMemberevrg:EvergyMember2022-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMember2022-12-310001711269us-gaap:RevolvingCreditFacilityMemberevrg:EvergyMember2022-12-310001711269us-gaap:CommercialPaperMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:StandbyLettersOfCreditMember2022-12-310001711269us-gaap:RevolvingCreditFacilityMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CommercialPaperMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:StandbyLettersOfCreditMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001711269evrg:EvergyMissouriWestIncMember2022-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:CommercialPaperMember2022-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:StandbyLettersOfCreditMember2022-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001711269us-gaap:CommercialPaperMember2022-12-310001711269us-gaap:StandbyLettersOfCreditMember2022-12-310001711269us-gaap:RevolvingCreditFacilityMember2022-12-310001711269us-gaap:LineOfCreditMemberus-gaap:UnsecuredDebtMember2022-02-280001711269us-gaap:LineOfCreditMemberus-gaap:UnsecuredDebtMember2023-03-310001711269us-gaap:LineOfCreditMember2023-03-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2053EKCMember2023-03-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2033EMMemberus-gaap:SubsequentEventMember2023-04-300001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesdue2023EMMember2023-03-310001711269evrg:CommercialPaperClassifiedAsLongTermDebtMemberus-gaap:CommercialPaperMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:NondesignatedMember2023-01-012023-03-31utr:MWh0001711269evrg:PowerCommodityContractMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:NondesignatedMember2023-01-012023-03-31utr:MMBTU0001711269evrg:NaturalGasCommodityContractMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:NondesignatedMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269us-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2023-03-310001711269us-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2022-12-310001711269evrg:PowerCommodityContractNoncurrentMemberus-gaap:NondesignatedMember2023-03-310001711269evrg:PowerCommodityContractNoncurrentMemberus-gaap:NondesignatedMember2022-12-310001711269us-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2023-03-310001711269us-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2022-12-310001711269us-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractNoncurrentMember2023-03-310001711269us-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractNoncurrentMember2022-12-310001711269us-gaap:NondesignatedMember2023-03-310001711269us-gaap:NondesignatedMember2022-12-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMemberevrg:PowerCommodityContractCurrentMember2023-03-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMemberevrg:PowerCommodityContractCurrentMember2022-12-310001711269evrg:PowerCommodityContractNoncurrentMemberus-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:PowerCommodityContractNoncurrentMemberus-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMemberevrg:NaturalGasCommodityContractCurrentMember2023-03-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMemberevrg:NaturalGasCommodityContractCurrentMember2022-12-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMemberevrg:NaturalGasCommodityContractNoncurrentMember2023-03-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMemberevrg:NaturalGasCommodityContractNoncurrentMember2022-12-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:NondesignatedMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2022-12-310001711269evrg:CommodityContractCurrentMember2023-03-310001711269evrg:CommodityContractCurrentMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:CommodityContractCurrentMember2023-03-310001711269evrg:CommodityContractNoncurrentMember2023-03-310001711269evrg:CommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:CommodityContractNoncurrentMember2023-03-310001711269evrg:CommodityContractCurrentMember2022-12-310001711269evrg:CommodityContractCurrentMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:CommodityContractCurrentMember2022-12-310001711269evrg:CommodityContractNoncurrentMember2022-12-310001711269evrg:CommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:CommodityContractNoncurrentMember2022-12-310001711269us-gaap:CommodityContractMember2023-01-012023-03-310001711269us-gaap:CommodityContractMember2022-01-012022-03-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:CommodityContractMember2023-01-012023-03-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:CommodityContractMember2022-01-012022-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-03-310001711269us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001711269us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:LongTermDebtFairValueAdjustmentMember2023-03-310001711269evrg:LongTermDebtFairValueAdjustmentMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:EquitySecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CorporateDebtSecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:CorporateDebtSecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:CoreBondFundMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:OtherEvergyMember2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:NaturalGasCommodityContractMember2023-03-310001711269us-gaap:FairValueInputsLevel1Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-03-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2023-03-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:GeographicDistributionForeignMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:CoreBondFundMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:CoreBondFundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:HighYieldBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:OtherEquityFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:DebtEquityOtherFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:EquitySecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269us-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:USStatesAndPoliticalSubdivisionsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberevrg:CoreBondFundMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:CoreBondFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:OtherEvergyMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:NaturalGasCommodityContractMember2022-12-310001711269us-gaap:FairValueInputsLevel1Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001711269us-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:EquitySecuritiesMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:AlternativeInvestmentFundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269us-gaap:RealEstateFundsMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269us-gaap:RealEstateFundsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-31evrg:fund0001711269evrg:EquitySecuritiesFourthFundMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:EquitySecuritiesFourthFundMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-03-31evrg:extension0001711269evrg:EquitySecuritiesFifthFundMemberus-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:DecommissioningTrustAssetsEquityMember2023-01-012023-03-310001711269evrg:DecommissioningTrustAssetsEquityMember2022-01-012022-03-310001711269evrg:DecommissioningTrustAssetsDebtMember2023-01-012023-03-310001711269evrg:DecommissioningTrustAssetsDebtMember2022-01-012022-03-310001711269evrg:RabbiTrustsMember2023-01-012023-03-310001711269evrg:RabbiTrustsMember2022-01-012022-03-310001711269evrg:DecommissioningTrustAssetsEquityMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:DecommissioningTrustAssetsEquityMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:RabbiTrustsMemberevrg:EvergyKansasCentralIncMember2023-01-012023-03-310001711269evrg:RabbiTrustsMemberevrg:EvergyKansasCentralIncMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:DecommissioningTrustAssetsEquityMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:DecommissioningTrustAssetsEquityMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:DecommissioningTrustAssetsDebtMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:DecommissioningTrustAssetsDebtMember2022-01-012022-03-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanNo1And2Memberevrg:EvergyMissouriWestIncMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:JeffreyEnergyCenterMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:LaCygneStationMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyKansasCentralIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2023-01-012023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyKansasCentralIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2022-01-012022-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyMetroIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2023-01-012023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyMetroIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2022-01-012022-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2023-01-012023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2022-01-012022-03-310001711269evrg:EvergyMetroIncMemberevrg:EvergyKansasCentralIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2023-01-012023-03-310001711269evrg:EvergyMetroIncMemberevrg:EvergyKansasCentralIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMember2022-01-012022-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyIncMoneyPoolMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:EvergyIncMoneyPoolMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:EvergyMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:EvergyMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:EvergyKansasCentralIncMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyMetroIncMember2023-03-310001711269evrg:EvergyMissouriWestIncMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:IncomeTaxesPayableMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyMember2023-03-310001711269evrg:EvergyKansasCentralIncMemberevrg:IncomeTaxReceivableMemberevrg:EvergyMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:IncomeTaxReceivableMemberevrg:EvergyMember2023-03-310001711269evrg:EvergyMetroIncMemberevrg:IncomeTaxesPayableMemberevrg:EvergyMember2022-12-31


目次
			Page Number
特定の将来予測情報に関する注意事項			4
用語集			6

パートI - 財務情報

Item 1.	ファイナンシャル・ステートメント
	株式会社エバジー
	未監査の連結貸借対照表		8
	未監査の連結包括利益計算書		10
	未監査連結キャッシュ・フロー計算書		11
	未監査連結持分変動計算書		12
	エバージー・カンザス・セントラル社（Evergy Kansas Central, Inc.
	未監査の連結貸借対照表		13
	未監査の連結損益計算書		15
	未監査連結キャッシュ・フロー計算書		16
	未監査連結持分変動計算書		17
	エバーギ・メトロ社
	未監査の連結貸借対照表		18
	未監査の連結包括利益計算書		20
	未監査連結キャッシュ・フロー計算書		21
	未監査連結持分変動計算書		22

	Evergy, Inc.、Evergy Kansas Central, Inc.およびEvergy Metro, Inc.の未監査連結財務諸表に対する結合注記。		23
	Note 1:	組織と表示基準	23
	Note 2:	売上高	28
	Note 3:	受取手形・売掛金	29
	Note 4:	レートに関する事項およびレギュレーション	31


	Note 5:	年金制度と退職後給付	33
	Note 6:	短期借入金および短期銀行融資枠	34
	Note 7:	長期借入金	36
	Note 8:	デリバティブ商品	36
	Note 9:	公正価値測定	40
	Note 10:	コミットメントおよび偶発事象	45
	Note 11:	関連当事者との取引および関係	49

	Note 12:	税金について	50
Item 2.	経営陣による財政状態及び経営成績の検討と分析		52
Item 3.	市場リスクに関する定量的・定性的な開示		66
Item 4.	コントロールとプロシージャ		66

パートII - その他の情報

Item 1.	法的手続きについて		67
Item 1A.	リスクファクター		67
Item 2.	未登録の持分証券の販売およびその代金の使用について		68
Item 3.	優先出資証券の債務不履行		68
Item 4.	鉱山の安全性に関する情報開示		68
Item 5.	その他の情報		69
Item 6.	出展内容		71

シグネチャー			73