エバジーの年次報告

00017112690000054476000005450712/31FYfalse2023P1Y0M0DP5Y0M0DP1Y0M0DP4Y0M0DP3Y0M0Dhttp://fasb.org/us-gaap/2023#OtherAssetsCurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsCurrenthttp://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsCurrent http://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsCurrent http://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2023#OtherAssetsCurrent http://fasb.org/us-gaap/2023#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/200017112692023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMember2023-01-012023-12-3100017112692023-06-30iso4217:USD00017112692024-02-21xbrli:shares0001711269evrg:EvergyKansasCentralIncMember2024-02-210001711269evrg:EvergyMetroIncMember2024-02-2100017112692022-01-012022-12-3100017112692021-01-012021-12-31iso4217:USDxbrli:shares00017112692023-12-3100017112692022-12-310001711269us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-12-310001711269us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-3100017112692021-12-3100017112692020-12-310001711269us-gaap:CommonStockMember2020-12-310001711269us-gaap:RetainedEarningsMember2020-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310001711269us-gaap:NoncontrollingInterestMember2020-12-310001711269us-gaap:RetainedEarningsMember2021-01-012021-12-310001711269us-gaap:NoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:CommonStockMember2021-01-012021-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-12-310001711269us-gaap:CommonStockMember2021-12-310001711269us-gaap:RetainedEarningsMember2021-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310001711269us-gaap:NoncontrollingInterestMember2021-12-310001711269us-gaap:RetainedEarningsMember2022-01-012022-12-310001711269us-gaap:NoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:CommonStockMember2022-01-012022-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310001711269us-gaap:CommonStockMember2022-12-310001711269us-gaap:RetainedEarningsMember2022-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310001711269us-gaap:NoncontrollingInterestMember2022-12-310001711269us-gaap:RetainedEarningsMember2023-01-012023-12-310001711269us-gaap:NoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:CommonStockMember2023-01-012023-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310001711269us-gaap:CommonStockMember2023-12-310001711269us-gaap:RetainedEarningsMember2023-12-310001711269us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-310001711269us-gaap:NoncontrollingInterestMember2023-12-310001711269evrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310001711269evrg:EvergyKansasCentralIncMember2021-12-310001711269evrg:EvergyKansasCentralIncMember2020-12-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2020-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RetainedEarningsMember2020-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2020-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RetainedEarningsMember2021-01-012021-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RetainedEarningsMember2021-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RetainedEarningsMember2022-01-012022-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RetainedEarningsMember2022-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RetainedEarningsMember2023-01-012023-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269us-gaap:CommonStockMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RetainedEarningsMember2023-12-310001711269us-gaap:NoncontrollingInterestMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMember2023-12-310001711269evrg:EvergyMetroIncMember2022-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyMetroIncMember2021-12-310001711269evrg:EvergyMetroIncMember2020-12-310001711269us-gaap:CommonStockMemberevrg:EvergyMetroIncMember2020-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2020-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2020-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:CommonStockMemberevrg:EvergyMetroIncMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:CommonStockMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:CommonStockMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RetainedEarningsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyKansasSouthIncMember2023-01-012023-12-31evrg:subsidiary0001711269evrg:TransourceEnergyLLCMemberevrg:EvergyTransmissionCompanyLLCMember2023-12-31xbrli:pure0001711269evrg:TransourceEnergyLLCMemberevrg:AEPTransmissionHoldingCompanyLLCMember2023-12-310001711269evrg:PrairieWindTransmissionLLCMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:PrairieWindTransmissionLLCMember2023-01-012023-12-31utr:mievrg:kilovolt_lineutr:MWevrg:customer0001711269evrg:EvergyMissouriWestIncMember2023-01-012023-12-310001711269evrg:EvergyMissouriWestIncMember2022-01-012022-12-310001711269evrg:EvergyMissouriWestIncMember2021-01-012021-12-310001711269srt:MinimumMember2023-01-012023-12-310001711269srt:MaximumMember2023-01-012023-12-310001711269srt:MinimumMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269srt:MaximumMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMembersrt:MinimumMember2023-01-012023-12-310001711269srt:MaximumMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:EarlyStageEnergySolutionCompanyMember2022-12-312022-12-310001711269evrg:EarlyStageEnergySolutionCompanyMember2021-12-312021-12-310001711269srt:MaximumMemberus-gaap:WarrantMember2023-01-012023-12-310001711269srt:MaximumMemberus-gaap:WarrantMember2022-01-012022-12-310001711269us-gaap:ConvertibleDebtSecuritiesMember2023-01-012023-12-310001711269us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-01-012023-12-310001711269us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-01-012022-12-310001711269us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-01-012021-12-310001711269us-gaap:SubsequentEventMemberus-gaap:CommonStockMember2024-02-012024-02-2800017112692021-02-012021-02-280001711269evrg:EvergyMissouriWestIncMember2021-02-012021-02-280001711269evrg:EvergyKansasCentralIncMember2021-02-012021-02-280001711269evrg:EvergyMetroIncMember2021-02-012021-02-280001711269evrg:EarlyStageEnergySolutionCompanyMember2021-10-012021-10-010001711269evrg:A2022OklahomaWindFarmPurchaseMember2022-08-090001711269evrg:A2022OklahomaWindFarmPurchaseMember2022-08-092022-08-090001711269evrg:A2022OklahomaWindFarmPurchaseMember2023-05-012023-05-310001711269evrg:EvergyKansasCentralIncMemberevrg:A2023RateCaseProceedingsMember2023-10-312023-10-310001711269evrg:A2024NaturalGasPlantPurchaseMember2023-11-300001711269evrg:A2024NaturalGasPlantPurchaseMember2023-11-302023-11-300001711269evrg:ElectricUtilityCustomerClassResidentialMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassResidentialMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassResidentialMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassCommercialMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassCommercialMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassCommercialMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassWholesaleMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassWholesaleMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassWholesaleMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassOtherRetailMember2022-10-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassCommercialMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassCommercialMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassCommercialMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMemberevrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMemberevrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassResidentialMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassCommercialMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassCommercialMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassCommercialMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassIndustrialMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassOtherRetailMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassTotalElectricRetailMemberevrg:EvergyMetroIncMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberevrg:ElectricUtilityCustomerClassWholesaleMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassTransmissionMemberevrg:EvergyMetroIncMember2021-01-012021-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269evrg:ElectricUtilityCustomerClassIndustrialSteamMemberevrg:EvergyMetroIncMember2021-01-012021-12-310001711269us-gaap:BilledRevenuesMemberus-gaap:TradeAccountsReceivableMember2023-12-310001711269us-gaap:BilledRevenuesMemberus-gaap:TradeAccountsReceivableMember2022-12-310001711269us-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2023-12-310001711269us-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TradeAccountsReceivableMemberus-gaap:UnbilledRevenuesMember2022-12-310001711269evrg:BorrowingsFromMidNovemberThroughMidJulyMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:BorrowingsFromMidJulyThroughMidNovemberMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:BorrowingsFromMidNovemberThroughMidJulyMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:BorrowingsFromMidJulyThroughMidNovemberMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:SubsequentEventMember2024-02-280001711269evrg:EvergyMetroIncMemberus-gaap:SubsequentEventMember2024-02-280001711269us-gaap:SubsequentEventMemberevrg:EvergyMissouriWestIncMember2024-02-280001711269evrg:EvergyKansasCentralIncMemberevrg:A2023RateCaseProceedingsMember2023-04-012023-04-300001711269evrg:EvergyMetroIncMemberevrg:A2023RateCaseProceedingsMember2023-04-012023-04-300001711269evrg:EvergyKansasCentralIncMemberevrg:A2023RateCaseProceedingsMember2023-04-300001711269evrg:EvergyKansasCentralIncMemberevrg:A2023RateCaseProceedingsMember2023-09-012023-09-300001711269evrg:EvergyMetroIncMemberevrg:A2023RateCaseProceedingsMember2023-09-012023-09-300001711269evrg:EvergyKansasCentralIncMemberevrg:A2023RateCaseProceedingsMember2023-09-300001711269evrg:EvergyKansasCentralIncMemberevrg:A2023RateCaseProceedingsMemberevrg:COLIRateCreditsForRefundMember2023-10-310001711269evrg:KansasCorporationCommissionMemberevrg:EvergyKansasCentralIncMemberevrg:TransmissionDeliveryChargeMember2023-05-012023-05-310001711269evrg:KansasCorporationCommissionMemberevrg:EvergyMetroIncMemberevrg:TransmissionDeliveryChargeMember2023-05-012023-05-310001711269evrg:KansasCorporationCommissionMemberevrg:A2018RateCaseProceedingsMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:KansasCorporationCommissionMemberevrg:A2018RateCaseProceedingsMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:KansasCorporationCommissionMemberevrg:A2018RateCaseProceedingsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:KansasCorporationCommissionMemberevrg:A2018RateCaseProceedingsMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:A2024RateCaseProceedingsMemberus-gaap:SubsequentEventMemberevrg:EvergyMissouriWestIncMember2024-02-012024-02-280001711269evrg:EvergyMissouriWestIncMemberevrg:MissouriPublicServiceCommissionMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:MissouriPublicServiceCommissionMember2023-01-012023-12-310001711269srt:MaximumMemberus-gaap:SubsequentEventMemberevrg:EvergyMissouriWestIncMemberevrg:A2021MPSCWinterWeatherQualifiedExtraordinaryCostsSecuritizationMember2024-02-280001711269evrg:A2021WinterWeatherQualifiedExtraordinaryCostsSecuritizationMemberevrg:EvergyMissouriWestIncMemberevrg:A2021MPSCWinterWeatherQualifiedExtraordinaryCostsSecuritizationMember2023-12-310001711269evrg:A2021WinterWeatherQualifiedExtraordinaryCostsSecuritizationMemberevrg:EvergyMissouriWestIncMemberevrg:A2021MPSCWinterWeatherQualifiedExtraordinaryCostsSecuritizationMember2022-12-310001711269evrg:A2024RateCaseProceedingsMemberevrg:FederalEnergyRegulatoryCommissionMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:FERC2023TFRProceedingMemberevrg:FederalEnergyRegulatoryCommissionMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:FERC2022TFRProceedingMemberevrg:FederalEnergyRegulatoryCommissionMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:FERC2023TFRProceedingMemberevrg:TFRRevenuesForRefundMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:FERC2024TFRProceedingMemberevrg:FederalEnergyRegulatoryCommissionMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:FERC2023TFRProceedingMemberevrg:FederalEnergyRegulatoryCommissionMember2023-01-012023-12-310001711269evrg:FERC2022TFRProceedingMemberevrg:EvergyMetroIncMemberevrg:FederalEnergyRegulatoryCommissionMember2023-01-012023-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2023-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2022-12-310001711269us-gaap:LossOnReacquiredDebtMember2023-12-310001711269us-gaap:LossOnReacquiredDebtMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:LossOnReacquiredDebtMember2023-12-310001711269us-gaap:LossOnReacquiredDebtMember2022-12-310001711269us-gaap:LossOnReacquiredDebtMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:LossOnReacquiredDebtMember2022-12-310001711269evrg:DebtFairValueAdjustmentMember2023-12-310001711269evrg:DebtFairValueAdjustmentMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:DebtFairValueAdjustmentMember2023-12-310001711269evrg:DebtFairValueAdjustmentMember2022-12-310001711269evrg:DebtFairValueAdjustmentMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:DebtFairValueAdjustmentMember2022-12-310001711269evrg:AssetRetirementObligationsFairValueAdjustmentMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:AssetRetirementObligationsFairValueAdjustmentMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:AssetRetirementObligationsFairValueAdjustmentMember2023-12-310001711269evrg:AssetRetirementObligationsFairValueAdjustmentMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:AssetRetirementObligationsFairValueAdjustmentMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:AssetRetirementObligationsFairValueAdjustmentMember2022-12-310001711269evrg:DepreciationMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:DepreciationMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:DepreciationMember2023-12-310001711269evrg:DepreciationMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:DepreciationMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:DepreciationMember2022-12-310001711269us-gaap:RemovalCostsMember2023-12-310001711269us-gaap:RemovalCostsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:RemovalCostsMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:RemovalCostsMember2022-12-310001711269us-gaap:RemovalCostsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RemovalCostsMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:AssetRetirementObligationCostsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AssetRetirementObligationCostsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetRetirementObligationCostsMember2023-12-310001711269us-gaap:AssetRetirementObligationCostsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AssetRetirementObligationCostsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetRetirementObligationCostsMember2022-12-310001711269evrg:AnalogMeterUnvrecoveredInvestmentMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:AnalogMeterUnvrecoveredInvestmentMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:AnalogMeterUnvrecoveredInvestmentMember2023-12-310001711269evrg:AnalogMeterUnvrecoveredInvestmentMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:AnalogMeterUnvrecoveredInvestmentMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:AnalogMeterUnvrecoveredInvestmentMember2022-12-310001711269evrg:TreasuryYieldHedgeMember2023-12-310001711269evrg:TreasuryYieldHedgeMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:TreasuryYieldHedgeMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:TreasuryYieldHedgeMember2022-12-310001711269evrg:TreasuryYieldHedgeMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:TreasuryYieldHedgeMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:IatanNo1AndCommonFacilitiesDepreciationAndCarryingCostsMember2023-12-310001711269evrg:IatanNo1AndCommonFacilitiesDepreciationAndCarryingCostsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:IatanNo1AndCommonFacilitiesDepreciationAndCarryingCostsMember2023-12-310001711269evrg:IatanNo1AndCommonFacilitiesDepreciationAndCarryingCostsMember2022-12-310001711269evrg:IatanNo1AndCommonFacilitiesDepreciationAndCarryingCostsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:IatanNo1AndCommonFacilitiesDepreciationAndCarryingCostsMember2022-12-310001711269evrg:IatanNo2ConstructionAccountingCostsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:IatanNo2ConstructionAccountingCostsMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:IatanNo2ConstructionAccountingCostsMember2023-12-310001711269evrg:IatanNo2ConstructionAccountingCostsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:IatanNo2ConstructionAccountingCostsMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:IatanNo2ConstructionAccountingCostsMember2022-12-310001711269evrg:KansasPropertyTaxSurchargeMember2023-12-310001711269evrg:KansasPropertyTaxSurchargeMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:KansasPropertyTaxSurchargeMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:KansasPropertyTaxSurchargeMember2022-12-310001711269evrg:KansasPropertyTaxSurchargeMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:KansasPropertyTaxSurchargeMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:DisallowedPlantCostsMember2023-12-310001711269evrg:DisallowedPlantCostsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:DisallowedPlantCostsMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:DisallowedPlantCostsMember2022-12-310001711269evrg:DisallowedPlantCostsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:DisallowedPlantCostsMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:LaCygneDeferredDepreciationMember2023-12-310001711269evrg:LaCygneDeferredDepreciationMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:LaCygneDeferredDepreciationMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:LaCygneDeferredDepreciationMember2022-12-310001711269evrg:LaCygneDeferredDepreciationMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:LaCygneDeferredDepreciationMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:DeferredCustomerProgramsMember2023-12-310001711269evrg:DeferredCustomerProgramsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:DeferredCustomerProgramsMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:DeferredCustomerProgramsMember2022-12-310001711269evrg:DeferredCustomerProgramsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:DeferredCustomerProgramsMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:DeferredFuelCostsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:DeferredFuelCostsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DeferredFuelCostsMember2023-12-310001711269us-gaap:DeferredFuelCostsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:DeferredFuelCostsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DeferredFuelCostsMember2022-12-310001711269evrg:February2021WinterWeatherEventMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:February2021WinterWeatherEventMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:February2021WinterWeatherEventMember2023-12-310001711269evrg:February2021WinterWeatherEventMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:February2021WinterWeatherEventMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:February2021WinterWeatherEventMember2022-12-310001711269us-gaap:RenewableEnergyProgramMember2023-12-310001711269us-gaap:RenewableEnergyProgramMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RenewableEnergyProgramMember2023-12-310001711269us-gaap:RenewableEnergyProgramMember2022-12-310001711269us-gaap:RenewableEnergyProgramMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RenewableEnergyProgramMember2022-12-310001711269evrg:TransmissionDeliveryChargeMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:TransmissionDeliveryChargeMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:TransmissionDeliveryChargeMember2023-12-310001711269evrg:TransmissionDeliveryChargeMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:TransmissionDeliveryChargeMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:TransmissionDeliveryChargeMember2022-12-310001711269evrg:WolfCreekoutageMember2023-12-310001711269evrg:WolfCreekoutageMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:WolfCreekoutageMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:WolfCreekoutageMember2022-12-310001711269evrg:WolfCreekoutageMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:WolfCreekoutageMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:PensionAndOtherPostretirementBenefitNonserviceCostsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:PensionAndOtherPostretirementBenefitNonserviceCostsMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:PensionAndOtherPostretirementBenefitNonserviceCostsMember2023-12-310001711269evrg:PensionAndOtherPostretirementBenefitNonserviceCostsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:PensionAndOtherPostretirementBenefitNonserviceCostsMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PensionAndOtherPostretirementBenefitNonserviceCostsMember2022-12-310001711269evrg:RetiredGenerationFacilityApprovedMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:RetiredGenerationFacilityApprovedMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:RetiredGenerationFacilityApprovedMember2023-12-310001711269evrg:RetiredGenerationFacilityApprovedMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:RetiredGenerationFacilityApprovedMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:RetiredGenerationFacilityApprovedMember2022-12-310001711269evrg:MergerTransitionCostsMember2023-12-310001711269evrg:MergerTransitionCostsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:MergerTransitionCostsMember2023-12-310001711269evrg:MergerTransitionCostsMember2022-12-310001711269evrg:MergerTransitionCostsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:MergerTransitionCostsMember2022-12-310001711269us-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310001711269us-gaap:OtherRegulatoryAssetsLiabilitiesMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310001711269us-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-12-310001711269us-gaap:OtherRegulatoryAssetsLiabilitiesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-12-310001711269evrg:DeferredRefundableIncomeTaxesMember2023-12-310001711269evrg:DeferredRefundableIncomeTaxesMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:DeferredRefundableIncomeTaxesMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:DeferredRefundableIncomeTaxesMember2022-12-310001711269evrg:DeferredRefundableIncomeTaxesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:DeferredRefundableIncomeTaxesMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:DeferredregulatorygainfromsaleleasebackMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:DeferredregulatorygainfromsaleleasebackMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:DeferredregulatorygainfromsaleleasebackMember2023-12-310001711269evrg:DeferredregulatorygainfromsaleleasebackMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:DeferredregulatorygainfromsaleleasebackMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:DeferredregulatorygainfromsaleleasebackMember2022-12-310001711269evrg:EmissionAllowancesMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EmissionAllowancesMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:EmissionAllowancesMember2023-12-310001711269evrg:EmissionAllowancesMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EmissionAllowancesMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:EmissionAllowancesMember2022-12-310001711269evrg:NucleardecommissioningMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:NucleardecommissioningMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:NucleardecommissioningMember2023-12-310001711269evrg:NucleardecommissioningMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:NucleardecommissioningMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:NucleardecommissioningMember2022-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMember2023-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMember2022-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:PensionAndOtherPostretirementPlansCostsMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:JurisdictionalAllowanceForFundsUsedDuringConstructionMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:JurisdictionalAllowanceForFundsUsedDuringConstructionMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:JurisdictionalAllowanceForFundsUsedDuringConstructionMember2023-12-310001711269evrg:JurisdictionalAllowanceForFundsUsedDuringConstructionMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:JurisdictionalAllowanceForFundsUsedDuringConstructionMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:JurisdictionalAllowanceForFundsUsedDuringConstructionMember2022-12-310001711269evrg:LaCygneLeaseholdDismantlingCostsMember2023-12-310001711269evrg:LaCygneLeaseholdDismantlingCostsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:LaCygneLeaseholdDismantlingCostsMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:LaCygneLeaseholdDismantlingCostsMember2022-12-310001711269evrg:LaCygneLeaseholdDismantlingCostsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:LaCygneLeaseholdDismantlingCostsMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:KansasTaxCreditsMember2023-12-310001711269evrg:KansasTaxCreditsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:KansasTaxCreditsMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:KansasTaxCreditsMember2022-12-310001711269evrg:KansasTaxCreditsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:KansasTaxCreditsMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:PurchasePowerAgreementMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:PurchasePowerAgreementMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:PurchasePowerAgreementMember2023-12-310001711269evrg:PurchasePowerAgreementMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:PurchasePowerAgreementMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PurchasePowerAgreementMember2022-12-310001711269us-gaap:DeferredFuelCostsMember2023-12-310001711269us-gaap:DeferredFuelCostsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:DeferredFuelCostsMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:DeferredFuelCostsMember2022-12-310001711269us-gaap:DeferredFuelCostsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:DeferredFuelCostsMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:February2021WinterWeatherEventRegulatoryLiabilityMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:February2021WinterWeatherEventRegulatoryLiabilityMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:February2021WinterWeatherEventRegulatoryLiabilityMember2023-12-310001711269evrg:February2021WinterWeatherEventRegulatoryLiabilityMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:February2021WinterWeatherEventRegulatoryLiabilityMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:February2021WinterWeatherEventRegulatoryLiabilityMember2022-12-310001711269evrg:SibleyRevenuesForRefundMember2023-12-310001711269evrg:SibleyRevenuesForRefundMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:SibleyRevenuesForRefundMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:SibleyRevenuesForRefundMember2022-12-310001711269evrg:SibleyRevenuesForRefundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:SibleyRevenuesForRefundMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:TFRRevenuesForRefundMember2023-12-310001711269evrg:TFRRevenuesForRefundMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:TFRRevenuesForRefundMember2023-12-310001711269evrg:TFRRevenuesForRefundMember2022-12-310001711269evrg:TFRRevenuesForRefundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:TFRRevenuesForRefundMember2022-12-310001711269evrg:COLIRateCreditsRefundMember2023-12-310001711269evrg:COLIRateCreditsRefundMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:COLIRateCreditsRefundMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:COLIRateCreditsRefundMember2022-12-310001711269evrg:COLIRateCreditsRefundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:COLIRateCreditsRefundMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:PhaseInPlanForRatemakingMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:PhaseInPlanForRatemakingMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:PhaseInPlanForRatemakingMember2023-12-310001711269evrg:PhaseInPlanForRatemakingMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:PhaseInPlanForRatemakingMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:PhaseInPlanForRatemakingMember2022-12-310001711269us-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2023-12-310001711269us-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-12-310001711269evrg:LaCygneStationMemberevrg:EvergyKansasSouthIncMember2023-01-012023-12-31evrg:reporting_unit0001711269evrg:EvergyKansasCentralIncMemberus-gaap:JointlyOwnedNuclearPowerPlantMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:JointlyOwnedNuclearPowerPlantMember2023-12-310001711269us-gaap:JointlyOwnedNuclearPowerPlantMember2023-12-31utr:Rate0001711269evrg:JointlyOwnedElectricityGenerationPlantLaCygneStationMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanNo1Member2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanNo.2Member2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanCommonMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantJeffreyEnergyCenterMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantStateLineMember2023-12-310001711269evrg:EvergyKansasCentralIncMembersrt:SubsidiariesMemberevrg:LaCygneUnit2Member2023-12-310001711269srt:SubsidiariesMemberevrg:LaCygneUnit2Member2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantLaCygneStationMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:JointlyOwnedElectricityGenerationPlantJeffreyEnergyCenterMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantStateLineMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantLaCygneStationMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanNo1Memberevrg:EvergyMetroIncMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanNo.2Memberevrg:EvergyMetroIncMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanCommonMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:EvergyKansasSouthIncMemberus-gaap:JointlyOwnedNuclearPowerPlantMember2023-12-310001711269evrg:PensionPlansAndOtherPostretirementBenefitPlansDefinedBenefitMemberMember2023-01-012023-12-310001711269evrg:PensionPlansAndOtherPostretirementBenefitPlansDefinedBenefitMemberMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:PensionPlansAndOtherPostretirementBenefitPlansDefinedBenefitMemberMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:PensionPlansAndOtherPostretirementBenefitPlansDefinedBenefitMemberMember2022-01-012022-12-310001711269evrg:PensionPlansAndOtherPostretirementBenefitPlansDefinedBenefitMemberMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:PensionPlansAndOtherPostretirementBenefitPlansDefinedBenefitMemberMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269us-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310001711269us-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269us-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-12-310001711269us-gaap:PensionPlansDefinedBenefitMember2021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2021-12-310001711269us-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2021-01-012021-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:DefinedBenefitPlanBondMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:DefinedBenefitPlanBondMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberevrg:DefinedBenefitPlanBondMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberevrg:DefinedBenefitPlanBondMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:AssetBackedSecuritiesMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMember2023-12-310001711269us-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:DefinedBenefitPlanOtherInvestmentMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:DefinedBenefitPlanOtherInvestmentMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberevrg:DefinedBenefitPlanOtherInvestmentMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberevrg:DefinedBenefitPlanOtherInvestmentMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:DefinedBenefitPlanRealEstateMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyKansasCentralIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanRealEstateMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMemberevrg:AlternativeInvestmentFundsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:PensionPlansDefinedBenefitMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:ShortTermInvestmentsMember2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:BalancedFundsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:ShortTermInvestmentsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:AssetBackedSecuritiesMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:BalancedFundsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:DefinedBenefitPlanOtherMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:RestrictedStockUnitsWithPerformanceMeasuresMember2022-12-310001711269evrg:RestrictedStockUnitsWithPerformanceMeasuresMember2023-01-012023-12-310001711269evrg:RestrictedStockUnitsWithPerformanceMeasuresMember2023-12-310001711269evrg:RestrictedStockUnitsWithPerformanceMeasuresMember2022-01-012022-12-310001711269evrg:RestrictedStockUnitsWithPerformanceMeasuresMember2021-01-012021-12-310001711269us-gaap:RestrictedStockUnitsRSUMember2022-12-310001711269us-gaap:RestrictedStockUnitsRSUMember2023-01-012023-12-310001711269us-gaap:RestrictedStockUnitsRSUMember2023-12-310001711269us-gaap:RestrictedStockUnitsRSUMember2022-01-012022-12-310001711269us-gaap:RestrictedStockUnitsRSUMember2021-01-012021-12-310001711269us-gaap:RevolvingCreditFacilityMember2023-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:RevolvingCreditFacilityMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RevolvingCreditFacilityMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RevolvingCreditFacilityMember2023-12-310001711269evrg:EvergyMember2023-12-310001711269evrg:EvergyMemberus-gaap:CommercialPaperMember2023-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMember2023-12-310001711269evrg:EvergyMemberus-gaap:RevolvingCreditFacilityMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:CommercialPaperMember2023-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CommercialPaperMember2023-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:CommercialPaperMember2023-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269us-gaap:CommercialPaperMember2023-12-310001711269us-gaap:StandbyLettersOfCreditMember2023-12-310001711269evrg:EvergyMember2022-12-310001711269evrg:EvergyMemberus-gaap:CommercialPaperMember2022-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMember2022-12-310001711269evrg:EvergyMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:CommercialPaperMember2022-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:CommercialPaperMember2022-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001711269evrg:EvergyMissouriWestIncMember2022-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:CommercialPaperMember2022-12-310001711269us-gaap:StandbyLettersOfCreditMemberevrg:EvergyMissouriWestIncMember2022-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:RevolvingCreditFacilityMember2022-12-310001711269us-gaap:CommercialPaperMember2022-12-310001711269us-gaap:StandbyLettersOfCreditMember2022-12-310001711269us-gaap:RevolvingCreditFacilityMember2022-12-310001711269us-gaap:UnsecuredDebtMemberus-gaap:LineOfCreditMember2022-02-280001711269us-gaap:UnsecuredDebtMemberus-gaap:LineOfCreditMember2023-02-280001711269evrg:ConvertibleNotesDue2027Member2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2025EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2025EKCMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2025EKCMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2026EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2026EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2026EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2027EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2027EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2027EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2033EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2033EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2033EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2042EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2042EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2042EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2043AEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2043AEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2043AEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2043BEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2043BEKCMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2043BEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2045EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2045EKCMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2045EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2049KEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2049KEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2049KEKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2050EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2050EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2050EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2053EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2053EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2053EKCMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2037EKSMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2037EKSMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2037EKSMember2023-12-310001711269evrg:MortgageBondsDue2038KEKSMemberus-gaap:SecuredDebtMember2023-12-310001711269evrg:MortgageBondsDue2038KEKSMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:MortgageBondsDue2038KEKSMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2044EKSMember2023-12-310001711269evrg:MortgageBondsDue2044EKSMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:MortgageBondsDue2044EKSMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:EIRRBondsDue2026EMMemberus-gaap:SecuredDebtMember2023-12-310001711269evrg:EIRRBondsDue2026EMMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EIRRBondsDue2026EMMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2030EMMember2023-12-310001711269evrg:MortgageBondsDue2030EMMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:MortgageBondsDue2030EMMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2033EMMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2033EMMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2033EMMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2049EvergyMetroMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2049EvergyMetroMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2049EvergyMetroMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2027EMWMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2027EMWMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2027EMWMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2032EMWMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2032EMWMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2032EMWMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032AEKCMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2032AEKCMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2032AEKCMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKCMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2032BEKCMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2032BEKCMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2027EKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2027EKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2027EKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2031EKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2031EKSMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2031EKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032AEKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2032AEKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2032AEKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKSMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKSMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKSMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EIRRBondsSeries2007Aand2007Bdue2035EMMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:EIRRBondsSeries2007Aand2007Bdue2035EMMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:EIRRBondsSeries2007Aand2007Bdue2035EMMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EERRBonds2875PercentSeries2008EMMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:EERRBonds2875PercentSeries2008EMMember2023-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:EERRBonds2875PercentSeries2008EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesdue2025EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesdue2025EMMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesdue2025EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:Seniornotesdue2035EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2035And5.78EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:Seniornotesdue2035EMMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:Seniornotesdue2035EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2041EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2041EMMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesDue2041EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2047EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesDue2047EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesDue2047EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2048EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesDue2048EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesDue2048EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesAdue2025EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesSeriesAdue2025EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesAdue2025EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesBdue2033EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesBdue2033EMWMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesBdue2033EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesCdue2043EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesSeriesCdue2043EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesCdue2043EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesADue2031EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesADue2031EMWMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesADue2031EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesB301PercentDue2033EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesSeriesB301PercentDue2033EMWMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesB301PercentDue2033EMWMember2023-12-310001711269evrg:SeniorNotesSeriesCDue2036EMWMemberus-gaap:SeniorNotesMember2023-12-310001711269evrg:SeniorNotesSeriesCDue2036EMWMemberus-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:SeniorNotesSeriesCDue2036EMWMemberus-gaap:SeniorNotesMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes2.45PercentSeriesDue2024Member2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotes2.45PercentSeriesDue2024Member2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotes2.45PercentSeriesDue2024Member2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes2.90PercentSeriesDue2029Member2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes3.77PercentSeriesDue2029Member2023-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes2.90PercentSeriesDue2029Memberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotes2.90PercentSeriesDue2029Member2023-12-310001711269evrg:ConvertibleNotesDue2027Memberus-gaap:ConvertibleNotesPayableMember2023-12-310001711269evrg:ConvertibleNotesDue2027Memberus-gaap:ConvertibleNotesPayableMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:ConvertibleNotesDue2027Memberus-gaap:ConvertibleNotesPayableMember2023-12-310001711269evrg:LongTermDebtFairValueAdjustmentMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:LongTermDebtFairValueAdjustmentMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:LongTermDebtFairValueAdjustmentMember2023-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2025EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2025EKCMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2025EKCMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2026EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2026EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2026EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2027EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2027EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2027EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2042EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2042EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2042EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2043AEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2043AEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2043AEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2043BEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2043BEKCMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2043BEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2045EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2045EKCMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2045EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2049KEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2049KEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2049KEKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2050EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2050EKCMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2050EKCMember2022-12-310001711269evrg:MortgageBondsDue2023EKSMemberus-gaap:SecuredDebtMember2022-12-310001711269evrg:MortgageBondsDue2023EKSMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:MortgageBondsDue2023EKSMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2037EKSMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2037EKSMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2037EKSMember2022-12-310001711269evrg:MortgageBondsDue2038KEKSMemberus-gaap:SecuredDebtMember2022-12-310001711269evrg:MortgageBondsDue2038KEKSMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:MortgageBondsDue2038KEKSMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2044EKSMember2022-12-310001711269evrg:MortgageBondsDue2044EKSMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:MortgageBondsDue2044EKSMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2023EMMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2023EMMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2023EMMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2030EMMember2022-12-310001711269evrg:MortgageBondsDue2030EMMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:MortgageBondsDue2030EMMemberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2049EvergyMetroMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2049EvergyMetroMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2049EvergyMetroMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2027EMWMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2027EMWMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2027EMWMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2032EMWMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:MortgageBondsDue2032EMWMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2032EMWMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032AEKCMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2032AEKCMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2032AEKCMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKCMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2032BEKCMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2032BEKCMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2027EKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2027EKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2027EKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2031EKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2031EKSMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2031EKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032AEKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:PollutionControlBondsDue2032AEKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:PollutionControlBondsDue2032AEKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKSMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKSMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:PollutionControlBondsDue2032BEKSMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EIRRBondsSeries2007Aand2007Bdue2035EMMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:EIRRBondsSeries2007Aand2007Bdue2035EMMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:EIRRBondsSeries2007Aand2007Bdue2035EMMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EERRBonds2875PercentSeries2008EMMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyKansasCentralIncMemberevrg:EERRBonds2875PercentSeries2008EMMember2022-12-310001711269evrg:PollutionControlBondsMemberevrg:EvergyMetroIncMemberevrg:EERRBonds2875PercentSeries2008EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesdue2023EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesdue2023EMMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesdue2023EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesdue2025EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesdue2025EMMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesdue2025EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:Seniornotesdue2035EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2035And5.78EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:Seniornotesdue2035EMMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:Seniornotesdue2035EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2041EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2041EMMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesDue2041EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2047EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesDue2047EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesDue2047EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesDue2048EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesDue2048EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesDue2048EMMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesAdue2025EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesSeriesAdue2025EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesAdue2025EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesBdue2033EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesBdue2033EMWMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesBdue2033EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesCdue2043EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesSeriesCdue2043EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesCdue2043EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesADue2031EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesADue2031EMWMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesADue2031EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotesSeriesB301PercentDue2033EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotesSeriesB301PercentDue2033EMWMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesSeriesB301PercentDue2033EMWMember2022-12-310001711269evrg:SeniorNotesSeriesCDue2036EMWMemberus-gaap:SeniorNotesMember2022-12-310001711269evrg:SeniorNotesSeriesCDue2036EMWMemberus-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:SeniorNotesSeriesCDue2036EMWMemberus-gaap:SeniorNotesMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes2.45PercentSeriesDue2024Member2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyKansasCentralIncMemberevrg:SeniorNotes2.45PercentSeriesDue2024Member2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotes2.45PercentSeriesDue2024Member2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes2.90PercentSeriesDue2029Member2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes3.77PercentSeriesDue2029Member2022-12-310001711269us-gaap:SeniorNotesMemberevrg:SeniorNotes2.90PercentSeriesDue2029Memberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotes2.90PercentSeriesDue2029Member2022-12-310001711269evrg:MediumTermNotes733PercentSeriesDue2023Memberus-gaap:MediumTermNotesMember2022-12-310001711269evrg:MediumTermNotes733PercentSeriesDue2023Memberevrg:EvergyKansasCentralIncMemberus-gaap:MediumTermNotesMember2022-12-310001711269evrg:MediumTermNotes733PercentSeriesDue2023Memberevrg:EvergyMetroIncMemberus-gaap:MediumTermNotesMember2022-12-310001711269us-gaap:MediumTermNotesMemberevrg:MediumTermNotes717PercentSeriesDue2023Member2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:MediumTermNotesMemberevrg:MediumTermNotes717PercentSeriesDue2023Member2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:MediumTermNotesMemberevrg:MediumTermNotes717PercentSeriesDue2023Member2022-12-310001711269evrg:LineOfCreditFacilityClassifiedAsLongTermDebt2023Memberus-gaap:LineOfCreditMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:LineOfCreditFacilityClassifiedAsLongTermDebt2023Memberus-gaap:LineOfCreditMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:LineOfCreditFacilityClassifiedAsLongTermDebt2023Memberus-gaap:LineOfCreditMember2022-12-310001711269evrg:LongTermDebtFairValueAdjustmentMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:LongTermDebtFairValueAdjustmentMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:LongTermDebtFairValueAdjustmentMember2022-12-310001711269evrg:GeneralMortgagebondsEIRRseries2005Memberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:GeneralMortgagebondsEIRRseries2005Memberus-gaap:SecuredDebtMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyKansasSouthIncMember2023-12-310001711269evrg:EvergyKansasSouthIncMember2023-01-012023-12-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2053EKCMember2023-03-310001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2033EMMember2023-04-300001711269us-gaap:SeniorNotesMemberevrg:EvergyMetroIncMemberevrg:SeniorNotesdue2023EMMember2023-03-310001711269evrg:MortgageBondsDue2023EKSMemberus-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMember2023-05-310001711269us-gaap:SecuredDebtMemberevrg:EvergyKansasCentralIncMemberevrg:MortgageBondsDue2033EKCMember2023-11-300001711269us-gaap:SecuredDebtMemberevrg:EvergyMetroIncMemberevrg:MortgageBondsDue2023EMMember2023-12-310001711269us-gaap:SeniorNotesMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269us-gaap:SeniorNotesMember2023-12-310001711269evrg:ConvertibleNotesDue2027OverAllotmnentMemberus-gaap:ConvertibleNotesPayableMember2023-12-310001711269evrg:LineOfCreditFacilityClassifiedAsLongTermDebt2023Memberus-gaap:LineOfCreditMember2023-12-310001711269evrg:ConvertibleNotesDue2027Memberus-gaap:ConvertibleNotesPayableMember2023-12-012023-12-310001711269evrg:ConvertibleNotesDue2027Memberus-gaap:ConvertibleNotesPayableMemberevrg:DebtConversionTermsOneMember2023-12-012023-12-310001711269evrg:DebtConversionTermsTwoMemberevrg:ConvertibleNotesDue2027Memberus-gaap:ConvertibleNotesPayableMember2023-12-012023-12-310001711269evrg:ConvertibleNotesDue2027Memberus-gaap:ConvertibleNotesPayableMember2023-01-012023-12-310001711269evrg:SecuritizedBondsMemberus-gaap:SubsequentEventMemberevrg:EvergyMissouriWestIncMemberevrg:SecuritizedBondsDue2040EMWMember2024-02-280001711269evrg:PowerCommodityContractMemberus-gaap:NondesignatedMember2023-01-012023-12-31utr:MWh0001711269evrg:PowerCommodityContractMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:NondesignatedMember2023-01-012023-12-31utr:MMBTU0001711269evrg:NaturalGasCommodityContractMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2023-01-012023-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269evrg:NaturalGasCommodityContractMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2023-01-012023-12-310001711269evrg:NaturalGasCommodityContractMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:NondesignatedMember2023-01-012023-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:NondesignatedMember2022-01-012022-12-310001711269us-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2023-12-310001711269us-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2022-12-310001711269evrg:PowerCommodityContractNoncurrentMemberus-gaap:NondesignatedMember2023-12-310001711269evrg:PowerCommodityContractNoncurrentMemberus-gaap:NondesignatedMember2022-12-310001711269us-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2023-12-310001711269us-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2022-12-310001711269evrg:NaturalGasCommodityContractNoncurrentMemberus-gaap:NondesignatedMember2023-12-310001711269evrg:NaturalGasCommodityContractNoncurrentMemberus-gaap:NondesignatedMember2022-12-310001711269us-gaap:NondesignatedMember2023-12-310001711269us-gaap:NondesignatedMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2022-12-310001711269evrg:PowerCommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2023-12-310001711269evrg:PowerCommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2022-12-310001711269evrg:NaturalGasCommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2023-12-310001711269evrg:NaturalGasCommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:NondesignatedMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:PowerCommodityContractCurrentMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:NondesignatedMemberevrg:NaturalGasCommodityContractCurrentMember2022-12-310001711269evrg:CommodityContractCurrentMember2023-12-310001711269evrg:CommodityContractCurrentMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:CommodityContractCurrentMember2023-12-310001711269evrg:CommodityContractNoncurrentMember2023-12-310001711269evrg:CommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:CommodityContractNoncurrentMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:CommodityContractCurrentMember2022-12-310001711269evrg:CommodityContractCurrentMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:CommodityContractCurrentMember2022-12-310001711269evrg:CommodityContractNoncurrentMember2022-12-310001711269evrg:CommodityContractNoncurrentMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:CommodityContractNoncurrentMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:CommodityContractMember2023-01-012023-12-310001711269us-gaap:CommodityContractMember2022-01-012022-12-310001711269us-gaap:CommodityContractMember2021-01-012021-12-310001711269us-gaap:CommodityContractMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269us-gaap:CommodityContractMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269us-gaap:CommodityContractMemberevrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:GeographicDistributionForeignMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMember2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMember2023-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2023-12-310001711269us-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMember2023-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2023-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:OtherEvergyMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMember2023-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Memberus-gaap:GeographicDistributionForeignMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMemberus-gaap:GeographicDistributionForeignMember2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:HighYieldBondFundMember2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:EmergingMarketsBondFundMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:OtherEquityFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberevrg:DebtEquityOtherFundMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentCorporationsAndAgenciesSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001711269us-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:CashEquivalentsMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:CashEquivalentsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:DebtSecuritiesMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CashAndCashEquivalentsMember2022-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberevrg:EvergyMetroIncMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2022-12-310001711269evrg:CoreBondFundMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:OtherEvergyMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberevrg:OtherEvergyMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:OtherEvergyMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:PowerCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-12-310001711269us-gaap:FairValueInputsLevel2Memberevrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001711269evrg:NaturalGasCommodityContractMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:GeographicDistributionDomesticMemberus-gaap:EquitySecuritiesMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:AlternativeInvestmentFundMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:AlternativeInvestmentFundMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberevrg:AlternativeInvestmentFundMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269us-gaap:RealEstateFundsMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:RealEstateFundsMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-31evrg:fund0001711269us-gaap:GeographicDistributionDomesticMemberevrg:EquitySecuritiesFourthFundMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269us-gaap:GeographicDistributionDomesticMemberevrg:EquitySecuritiesFourthFundMemberevrg:EvergyKansasCentralIncMember2023-12-31evrg:extension0001711269us-gaap:GeographicDistributionDomesticMemberevrg:EvergyKansasCentralIncMemberevrg:EquitySecuritiesFifthFundMember2023-01-012023-12-310001711269evrg:DecommissioningTrustAssetsEquityMember2023-01-012023-12-310001711269evrg:DecommissioningTrustAssetsEquityMember2022-01-012022-12-310001711269evrg:DecommissioningTrustAssetsEquityMember2021-01-012021-12-310001711269evrg:DecommissioningTrustAssetsDebtMember2023-01-012023-12-310001711269evrg:DecommissioningTrustAssetsDebtMember2022-01-012022-12-310001711269evrg:DecommissioningTrustAssetsDebtMember2021-01-012021-12-310001711269evrg:RabbiTrustsMember2023-01-012023-12-310001711269evrg:RabbiTrustsMember2022-01-012022-12-310001711269evrg:RabbiTrustsMember2021-01-012021-12-310001711269evrg:DecommissioningTrustAssetsEquityMemberevrg:EvergyKansasCentralIncMember2023-01-012023-12-310001711269evrg:DecommissioningTrustAssetsEquityMemberevrg:EvergyKansasCentralIncMember2022-01-012022-12-310001711269evrg:DecommissioningTrustAssetsEquityMemberevrg:EvergyKansasCentralIncMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:RabbiTrustsMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:RabbiTrustsMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:RabbiTrustsMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberevrg:DecommissioningTrustAssetsEquityMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberevrg:DecommissioningTrustAssetsEquityMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberevrg:DecommissioningTrustAssetsEquityMember2021-01-012021-12-310001711269evrg:DecommissioningTrustAssetsDebtMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:DecommissioningTrustAssetsDebtMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269evrg:DecommissioningTrustAssetsDebtMemberevrg:EvergyMetroIncMember2021-01-012021-12-310001711269us-gaap:PublicUtilitiesInventoryFuelMember2023-12-310001711269evrg:PurchasedPowerMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:PublicUtilitiesInventoryFuelMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:PurchasedPowerMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:PublicUtilitiesInventoryFuelMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:PurchasedPowerMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:FinancialGuaranteeMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:FinancialGuaranteeMember2023-12-310001711269evrg:EvergyMissouriWestIncMemberus-gaap:GuaranteeOfIndebtednessOfOthersMember2023-12-310001711269us-gaap:CommercialPaperMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:JointlyOwnedElectricityGenerationPlantIatanNo1And2Memberevrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:JeffreyEnergyCenterMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:LaCygneStationMember2023-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyMissouriWestIncMember2023-01-012023-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyMissouriWestIncMember2022-01-012022-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyMissouriWestIncMember2021-01-012021-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyMetroIncMemberevrg:EvergyMissouriWestIncMember2023-01-012023-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyMetroIncMemberevrg:EvergyMissouriWestIncMember2022-01-012022-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyMetroIncMemberevrg:EvergyMissouriWestIncMember2021-01-012021-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269evrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyMetroIncMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyMetroIncMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:OperatingExpensesAndCapitalCostsBilledMemberevrg:EvergyMetroIncMember2021-01-012021-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyMetroIncMemberevrg:EvergyIncMoneyPoolMember2023-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyMetroIncMemberevrg:EvergyIncMoneyPoolMember2022-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyIncMoneyPoolMember2023-12-310001711269us-gaap:RelatedPartyMemberevrg:EvergyKansasCentralIncMemberevrg:EvergyIncMoneyPoolMember2022-12-310001711269evrg:EvergyMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269evrg:EvergyMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMissouriWestIncMember2022-12-310001711269evrg:EvergyMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:EvergyMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberevrg:EvergyMetroIncMember2022-12-310001711269evrg:EvergyMetroIncMemberevrg:EvergyMissouriWestIncMember2023-12-310001711269evrg:EvergyMetroIncMemberevrg:EvergyMissouriWestIncMember2022-12-310001711269evrg:EvergyMemberevrg:EvergyKansasCentralIncMemberevrg:IncomeTaxesPayableMember2023-12-310001711269evrg:EvergyMemberevrg:EvergyKansasCentralIncMemberevrg:IncomeTaxReceivableMember2022-12-310001711269evrg:EvergyMemberevrg:EvergyMetroIncMemberevrg:IncomeTaxReceivableMember2023-12-310001711269evrg:EvergyMemberevrg:EvergyMetroIncMemberevrg:IncomeTaxesPayableMember2022-12-3100017112692021-02-2800017112692021-04-012021-04-300001711269evrg:EvergyKansasCentralIncMemberevrg:LaCygneUnit2Member2023-01-012023-12-310001711269evrg:LaCygneUnit2Member2023-01-012023-12-310001711269us-gaap:GeneralBusinessMember2023-12-310001711269us-gaap:GeneralBusinessMember2022-12-310001711269us-gaap:GeneralBusinessMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:GeneralBusinessMemberevrg:EvergyKansasCentralIncMember2022-12-310001711269us-gaap:GeneralBusinessMemberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:GeneralBusinessMemberevrg:EvergyMetroIncMember2022-12-310001711269us-gaap:TaxYear2007Member2023-12-310001711269us-gaap:TaxYear2007Memberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:TaxYear2007Memberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:TaxYear2016Member2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TaxYear2016Member2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TaxYear2016Member2023-12-310001711269us-gaap:TaxYear2017Member2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TaxYear2017Member2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TaxYear2017Member2023-12-310001711269us-gaap:TaxYear2018Member2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TaxYear2018Member2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TaxYear2018Member2023-12-310001711269us-gaap:TaxYear2019Member2023-12-310001711269us-gaap:TaxYear2019Memberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:TaxYear2019Memberevrg:EvergyMetroIncMember2023-12-310001711269us-gaap:TaxYear2020Member2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TaxYear2020Member2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TaxYear2020Member2023-12-310001711269us-gaap:TaxYear2021Member2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TaxYear2021Member2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TaxYear2021Member2023-12-310001711269us-gaap:TaxYear2022Member2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TaxYear2022Member2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TaxYear2022Member2023-12-310001711269us-gaap:TaxYear2023Member2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:TaxYear2023Member2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:TaxYear2023Member2023-12-310001711269us-gaap:StateAndLocalJurisdictionMember2023-12-310001711269us-gaap:StateAndLocalJurisdictionMemberevrg:EvergyKansasCentralIncMember2023-12-310001711269us-gaap:InternalRevenueServiceIRSMember2023-12-310001711269us-gaap:TaxYear2006Member2023-12-310001711269us-gaap:StateAndLocalJurisdictionMember2023-12-310001711269us-gaap:StateAndLocalJurisdictionMember2022-12-3100017112692023-10-012023-12-310001711269srt:ParentCompanyMember2023-01-012023-12-310001711269srt:ParentCompanyMember2022-01-012022-12-310001711269srt:ParentCompanyMember2021-01-012021-12-310001711269srt:ParentCompanyMember2023-12-310001711269srt:ParentCompanyMember2022-12-310001711269srt:ParentCompanyMemberus-gaap:RelatedPartyMember2023-12-310001711269srt:ParentCompanyMemberus-gaap:RelatedPartyMember2022-12-310001711269srt:ParentCompanyMember2021-12-310001711269srt:ParentCompanyMember2020-12-310001711269us-gaap:AllowanceForCreditLossMember2022-12-310001711269us-gaap:AllowanceForCreditLossMember2023-01-012023-12-310001711269us-gaap:AllowanceForCreditLossMember2023-12-310001711269us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2022-12-310001711269us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2023-01-012023-12-310001711269us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2023-12-310001711269us-gaap:AllowanceForCreditLossMember2021-12-310001711269us-gaap:AllowanceForCreditLossMember2022-01-012022-12-310001711269us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2021-12-310001711269us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2022-01-012022-12-310001711269us-gaap:AllowanceForCreditLossMember2020-12-310001711269us-gaap:AllowanceForCreditLossMember2021-01-012021-12-310001711269us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2020-12-310001711269us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2021-01-012021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AllowanceForCreditLossMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AllowanceForCreditLossMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AllowanceForCreditLossMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2023-01-012023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2023-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AllowanceForCreditLossMember2021-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AllowanceForCreditLossMember2022-01-012022-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AllowanceForCreditLossMember2020-12-310001711269evrg:EvergyKansasCentralIncMemberus-gaap:AllowanceForCreditLossMember2021-01-012021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AllowanceForCreditLossMember2022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AllowanceForCreditLossMember2023-01-012023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AllowanceForCreditLossMember2023-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AllowanceForCreditLossMember2021-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AllowanceForCreditLossMember2022-01-012022-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AllowanceForCreditLossMember2020-12-310001711269evrg:EvergyMetroIncMemberus-gaap:AllowanceForCreditLossMember2021-01-012021-12-31


目次
		PageNumber
	将来予測情報に関する注意事項	3
	用語集	5

第一部
Item 1.	ビジネス	7
Item 1A.	リスク要因	16
Item 1B.	未解決のスタッフコメント	28
Item 1C.	サイバーセキュリティ	28
Item 2.	プロパティ	30
Item 3.	法的手続き	33
Item 4.	鉱山安全情報開示	33
パートII
Item 5.	登録者普通株式の市場、関連株主事項および発行者による持分証券の購入	34
Item 6.	予約	34
Item 7.	財政状態および経営成績に関する経営陣の検討および分析	34
Item 7A.	市場リスクに関する定量的・定性的開示	62
Item 8.	財務諸表および補足データ	65
Item 9.	会計および財務開示に関する会計監査人の変更および見解の相違について	160
Item 9A.	管理と手続き	161
Item 9B.	その他の情報	164
Item 9C.	検査を妨げる外国の管轄区域に関する開示	164
パート III
Item 10.	取締役、執行役員およびコーポレート・ガバナンス	164
Item 11.	役員報酬	165
Item 12.	特定の受益者及び経営陣の証券所有権並びに関連株主事項	165
Item 13.	特定の関係および関連取引、ならびに取締役の独立性	166
Item 14.	主な会計報酬およびサービス	166
パートIV
Item 15.	別紙および財務諸表明細書	168

	署名	190


Abbreviation or Acronym						Definition

AAO						Accounting authority order

AEP						アメリカン・エレクトリック・パワー・カンパニー（aec）。
AFUDC						工事中に使用した資金の引当金
AOCI						累積その他の包括利益
AROs						Asset retirement obligations



CAA						Clean Air Act
CCN						便利さと必要性の証明書（certificate of convenience and necessity
CCRs						Coal combustion residuals
CO2						Carbon dioxide
CO2e						Carbon dioxide equivalent
COLI						Corporate-owned life insurance
COVID-19						Coronavirus

CSAPR						Cross-State Air Pollution


Dogwood						Dogwood Energy Center
ELG						Effluent limitations guidelines
EPA						Environmental Protection Agency
EPS						普通株式1株当たりの利益

ERISA						米国1974年従業員退職所得保障法（employee retirement income security act of 1974）改正
ERSP						収益レビューとシェアリングプラン
Evergy						エバジー社およびその連結子会社
Evergy Board						Evergy Board of Directors
Evergy Companies						evergy、evergy kansas central、evergy metroの3社は、evergyの連結グループ内の個別登録企業であります。
Evergy Kansas Central						エバジー・カンザス・セントラル社（エバジーの100％子会社）およびその連結子会社
Evergy Kansas South						エバジー・カンザス・セントラルの100％子会社であるエバジー・カンザス・サウス社。
Evergy Metro						エバジーの100％子会社であるエバジー・メトロ・インクおよびその連結子会社

Evergy Missouri West						エバージ・ミズーリ・ウエスト社（エバージ社の100％子会社
Evergy Transmission Company						Evergy Transmission Company, LLC
Exchange Act						1934年米国証券取引所法（the securities exchange act of 1934）改正

2021年2月冬季気象現象						2021年2月、米国中南部の広い範囲で数日間にわたり極端に気温が低下した冬の重大な気象現象
FERC						Federal Energy Regulatory Commission
FMBs						First Mortgage Bonds
GAAP						Generally Accepted Accounting Principles
GHG						Greenhouse gas
Great Plains Energy						Great Plains Energy Incorporated
IRA						Inflation Reduction Act
ITFIP						州間輸送連邦実施計画
ITSIP						州間輸送州実施計画