FALSE2021Q1000108131612/31000007559412/31000109829612/31000092857612/31000007118012/31000009014412/31000160329112/31111121212002525—00012000010813162021-01-012021-03-310001081316bhe:PacificorpMember2021-01-012021-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMember2021-01-012021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-31xbrli:shares00010813162021-04-290001081316bhe:PacificorpMember2021-04-290001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-04-290001081316bhe:NevadaPowerCompanyMember2021-04-290001081316bhe:SierraPacificPowerCompanyMember2021-04-29iso4217:USD00010813162021-03-3100010813162020-12-31iso4217:USDxbrli:shares0001081316bhe:ElectricityandnaturalgasMember2021-01-012021-03-310001081316bhe:ElectricityandnaturalgasMember2020-01-012020-03-310001081316bhe:ResidentialrealestatebrokerageandmortgagebusinessesMember2021-01-012021-03-310001081316bhe:ResidentialrealestatebrokerageandmortgagebusinessesMember2020-01-012020-03-3100010813162020-01-012020-03-310001081316us-gaap:PreferredStockMember2019-12-310001081316us-gaap:CommonStockMember2019-12-310001081316us-gaap:AdditionalPaidInCapitalMember2019-12-310001081316bhe:LongtermincometaxreceivableMember2019-12-310001081316us-gaap:RetainedEarningsMember2019-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310001081316us-gaap:NoncontrollingInterestMember2019-12-3100010813162019-12-310001081316us-gaap:CommonStockMember2020-01-012020-03-310001081316us-gaap:AdditionalPaidInCapitalMember2020-01-012020-03-310001081316us-gaap:RetainedEarningsMember2020-01-012020-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-01-012020-03-310001081316us-gaap:NoncontrollingInterestMember2020-01-012020-03-310001081316us-gaap:PreferredStockMember2020-03-310001081316us-gaap:CommonStockMember2020-03-310001081316us-gaap:AdditionalPaidInCapitalMember2020-03-310001081316bhe:LongtermincometaxreceivableMember2020-03-310001081316us-gaap:RetainedEarningsMember2020-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-03-310001081316us-gaap:NoncontrollingInterestMember2020-03-3100010813162020-03-310001081316us-gaap:PreferredStockMember2020-12-310001081316us-gaap:CommonStockMember2020-12-310001081316us-gaap:AdditionalPaidInCapitalMember2020-12-310001081316bhe:LongtermincometaxreceivableMember2020-12-310001081316us-gaap:RetainedEarningsMember2020-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310001081316us-gaap:NoncontrollingInterestMember2020-12-310001081316us-gaap:CommonStockMember2021-01-012021-03-310001081316us-gaap:AdditionalPaidInCapitalMember2021-01-012021-03-310001081316us-gaap:RetainedEarningsMember2021-01-012021-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-03-310001081316us-gaap:NoncontrollingInterestMember2021-01-012021-03-310001081316bhe:LongtermincometaxreceivableMember2021-01-012021-03-310001081316us-gaap:PreferredStockMember2021-03-310001081316us-gaap:CommonStockMember2021-03-310001081316us-gaap:AdditionalPaidInCapitalMember2021-03-310001081316bhe:LongtermincometaxreceivableMember2021-03-310001081316us-gaap:RetainedEarningsMember2021-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-03-310001081316us-gaap:NoncontrollingInterestMember2021-03-31bhe:OperatingSegmentsbhe:OwnedAndOperatedCompanies0001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-11-012020-11-010001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-07-03xbrli:pure0001081316bhe:CarolinaGasTransmissionLLCMemberbhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-11-010001081316bhe:EasternGasTransmissionInc.Memberbhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-11-010001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMemberbhe:IroquoisGasTransmissionSystemL.P.Member2020-11-010001081316us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:OtherOwnershipInterestMemberbhe:CovePointLNGLPMemberbhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-11-012020-11-010001081316us-gaap:GeneralPartnerMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberbhe:CovePointLNGLPMemberbhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-11-012020-11-010001081316us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberbhe:CovePointLNGLPMemberbhe:NaturalGasTransmissionandStorageBusinessAcquisitionMemberus-gaap:LimitedPartnerMember2020-11-012020-11-010001081316srt:ScenarioForecastMemberbhe:QuestarPipelineGroupandDominionQuestarTransactionMember2021-01-012021-12-310001081316srt:ScenarioForecastMemberbhe:QuestarPipelineGroupandDominionQuestarTransactionMember2021-12-310001081316bhe:QuestarPipelineGroupandDominionQuestarTransactionMember2020-11-022020-11-02utr:mi0001081316bhe:NaturalGasTransmissionandStorageTransactionMember2020-11-01utr:Bcf0001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-10-290001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-10-292020-10-290001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMembersrt:NaturalGasReservesMember2021-01-012021-03-310001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2021-01-012021-03-310001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-11-010001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-01-012020-10-310001081316bhe:DomesticTaxAuthorityAndStateAndLocalJurisdictionMemberbhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-11-010001081316us-gaap:GoodwillMemberbhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2021-01-012021-03-310001081316bhe:NaturalGasTransmissionandStorageBusinessAcquisitionMember2020-01-012020-03-310001081316us-gaap:RegulatedOperationMembersrt:MinimumMemberbhe:UtilityGenerationDistributionAndTransmissionSystemMember2021-01-012021-03-310001081316srt:MaximumMemberus-gaap:RegulatedOperationMemberbhe:UtilityGenerationDistributionAndTransmissionSystemMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberbhe:UtilityGenerationDistributionAndTransmissionSystemMember2021-03-310001081316us-gaap:RegulatedOperationMemberbhe:UtilityGenerationDistributionAndTransmissionSystemMember2020-12-310001081316us-gaap:RegulatedOperationMembersrt:MinimumMemberus-gaap:PipelinesMember2021-01-012021-03-310001081316srt:MaximumMemberus-gaap:RegulatedOperationMemberus-gaap:PipelinesMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberus-gaap:PipelinesMember2021-03-310001081316us-gaap:RegulatedOperationMemberus-gaap:PipelinesMember2020-12-310001081316us-gaap:RegulatedOperationMember2021-03-310001081316us-gaap:RegulatedOperationMember2020-12-310001081316bhe:IndependentPowerPlantsMemberus-gaap:UnregulatedOperationMembersrt:MinimumMember2021-01-012021-03-310001081316bhe:IndependentPowerPlantsMembersrt:MaximumMemberus-gaap:UnregulatedOperationMember2021-01-012021-03-310001081316bhe:IndependentPowerPlantsMemberus-gaap:UnregulatedOperationMember2021-03-310001081316bhe:IndependentPowerPlantsMemberus-gaap:UnregulatedOperationMember2020-12-310001081316us-gaap:UnregulatedOperationMembersrt:MinimumMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2021-01-012021-03-310001081316srt:MaximumMemberus-gaap:UnregulatedOperationMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2021-03-310001081316us-gaap:UnregulatedOperationMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2020-12-310001081316us-gaap:UnregulatedOperationMember2021-03-310001081316us-gaap:UnregulatedOperationMember2020-12-310001081316bhe:CommonFacilitiesMember2021-03-310001081316bhe:CommonFacilitiesMember2020-12-310001081316us-gaap:ConstructionInProgressMember2021-03-310001081316us-gaap:ConstructionInProgressMember2020-12-310001081316bhe:BydCompanyLimitedCommonStockMember2021-03-310001081316bhe:BydCompanyLimitedCommonStockMember2020-12-310001081316bhe:RabbiTrustMember2021-03-310001081316bhe:RabbiTrustMember2020-12-310001081316bhe:InvestmentsOtherMember2021-03-310001081316bhe:InvestmentsOtherMember2020-12-310001081316bhe:EquityMethodInvestmentstaxequityinvestmentsMember2021-03-310001081316bhe:EquityMethodInvestmentstaxequityinvestmentsMember2020-12-310001081316bhe:IroquoisGasTransmissionSystemL.P.Member2021-03-310001081316bhe:IroquoisGasTransmissionSystemL.P.Member2020-12-310001081316bhe:EquityMethodInvestmentsElectricTransmissionTexasLlcMember2021-03-310001081316bhe:EquityMethodInvestmentsElectricTransmissionTexasLlcMember2020-12-310001081316bhe:JAXLNGLLCMember2021-03-310001081316bhe:JAXLNGLLCMember2020-12-310001081316bhe:EquityMethodInvestmentsBridgerCoalCompanyMember2021-03-310001081316bhe:EquityMethodInvestmentsBridgerCoalCompanyMember2020-12-310001081316bhe:EquityMethodInvestmentsOtherMember2021-03-310001081316bhe:EquityMethodInvestmentsOtherMember2020-12-310001081316bhe:NuclearDecommissioningTrustFundsMember2021-03-310001081316bhe:NuclearDecommissioningTrustFundsMember2020-12-310001081316bhe:RestrictedCashAndInvestmentsOtherMember2021-03-310001081316bhe:RestrictedCashAndInvestmentsOtherMember2020-12-310001081316bhe:EquityMethodInvestmentstaxequityinvestmentsMember2021-01-012021-03-310001081316bhe:EquityMethodInvestmentstaxequityinvestmentsMemberbhe:DomesticTaxAuthorityAndStateAndLocalJurisdictionMember2021-01-012021-03-310001081316bhe:EquityMethodInvestmentsImpactedTaxEquityInvestmentsMember2021-03-310001081316bhe:BHEPipelineGroupMemberbhe:NorthernNaturalGasMemberbhe:SeniorNotes340Due2051Member2021-03-310001081316bhe:BHEPipelineGroupMemberbhe:SubsidiaryDebtMemberbhe:SeniorNotes340Due2051Member2021-03-310001081316bhe:BHEPipelineGroupMemberbhe:SeniorNotes425Due2021Memberbhe:NorthernNaturalGasMember2021-03-310001081316bhe:BHEPipelineGroupMemberbhe:SeniorNotes425Due2021Memberbhe:SubsidiaryDebtMember2021-03-310001081316us-gaap:LineOfCreditMemberbhe:RevolvingCreditFacilityC200MillionExpiringApril2022Memberbhe:AltaLinkInvestmentsL.P.Member2021-03-310001081316bhe:BydCompanyLimitedCommonStockMember2021-01-012021-03-310001081316srt:ParentCompanyMember2021-01-012021-03-310001081316srt:ParentCompanyMember2020-01-012020-03-310001081316country:USus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-03-310001081316country:USus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-03-310001081316us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-03-310001081316us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-03-310001081316country:USus-gaap:PensionPlansDefinedBenefitMember2021-03-310001081316us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-03-310001081316country:GBus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-03-310001081316country:GBus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-03-31iso4217:GBP0001081316country:GBus-gaap:PensionPlansDefinedBenefitMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MortgagesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MortgagesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MortgagesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MortgagesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel1Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ForeignGovernmentDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:DomesticEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:DomesticEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:DomesticEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:DomesticEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:InterestRateContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MortgagesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MortgagesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MortgagesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MortgagesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel1Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel2Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:DomesticEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:DomesticEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:DomesticEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:DomesticEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMember2020-12-310001081316us-gaap:CommodityContractMember2020-12-310001081316us-gaap:InterestRateLockCommitmentsMember2020-12-310001081316us-gaap:CommodityContractMember2021-01-012021-03-310001081316us-gaap:InterestRateLockCommitmentsMember2021-01-012021-03-310001081316us-gaap:CommodityContractMember2021-03-310001081316us-gaap:InterestRateLockCommitmentsMember2021-03-310001081316us-gaap:CommodityContractMember2019-12-310001081316us-gaap:InterestRateLockCommitmentsMember2019-12-310001081316us-gaap:CommodityContractMember2020-01-012020-03-310001081316us-gaap:InterestRateLockCommitmentsMember2020-01-012020-03-310001081316us-gaap:CommodityContractMember2020-03-310001081316us-gaap:InterestRateLockCommitmentsMember2020-03-310001081316us-gaap:FairValueInputsLevel2Member2021-03-310001081316us-gaap:FairValueInputsLevel2Member2020-12-31utr:acre0001081316bhe:PacificorpMemberbhe:A2020WildfiresMember2020-09-012020-09-30bhe:naturalGasProducer0001081316bhe:PacificorpMemberbhe:A2020WildfiresMember2020-09-012021-03-310001081316bhe:PacificorpMemberbhe:A2020WildfiresMember2021-03-310001081316bhe:PacificorpMemberbhe:KlamathHydroelectricSystemMember2021-01-012021-03-310001081316bhe:PacificorpMemberbhe:KlamathHydroelectricSystemMember2021-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:MidamericanFundingMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedretailelectricMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:BHEPipelineGroupMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:BHETransmissionMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:PacificorpMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:MidamericanFundingMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NorthernPowergridHoldingsMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHERenewablesMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailgasMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:MidamericanFundingMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:MidamericanFundingMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:BHERenewablesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:MidamericanFundingMemberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:PacificorpMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:MidamericanFundingMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NorthernPowergridHoldingsMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHERenewablesMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:OthercustomerrevenueMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:MidamericanFundingMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:PacificorpMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:MidamericanFundingMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberus-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:NorthernPowergridHoldingsMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberus-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberus-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:BHERenewablesMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:BerkshireHathawayEnergyAndOtherMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316bhe:PacificorpMember2021-01-012021-03-310001081316bhe:MidamericanFundingMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Member2021-01-012021-03-310001081316bhe:NorthernPowergridHoldingsMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMember2021-01-012021-03-310001081316bhe:BHETransmissionMember2021-01-012021-03-310001081316bhe:BHERenewablesMember2021-01-012021-03-310001081316bhe:BerkshireHathawayEnergyAndOtherMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:PacificorpMember2021-01-012021-03-310001081316bhe:MidamericanFundingMemberbhe:NoncontractswithcustomerrevenueMember2021-01-012021-03-310001081316bhe:NVEnergyInc.Memberbhe:NoncontractswithcustomerrevenueMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:NorthernPowergridHoldingsMember2021-01-012021-03-310001081316bhe:BHEPipelineGroupMemberbhe:NoncontractswithcustomerrevenueMember2021-01-012021-03-310001081316bhe:BHETransmissionMemberbhe:NoncontractswithcustomerrevenueMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:BHERenewablesMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:BerkshireHathawayEnergyAndOtherMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:MidamericanFundingMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedretailelectricMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:BHEPipelineGroupMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:BHETransmissionMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:MidamericanFundingMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NorthernPowergridHoldingsMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHERenewablesMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailgasMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:MidamericanFundingMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:MidamericanFundingMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:BHERenewablesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316us-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:MidamericanFundingMemberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberbhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedinterstatepipelineMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedinterstatepipelineMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:MidamericanFundingMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NorthernPowergridHoldingsMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHERenewablesMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:OthercustomerrevenueMemberbhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:MidamericanFundingMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NorthernPowergridHoldingsMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BHERenewablesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:BerkshireHathawayEnergyAndOtherMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316us-gaap:RegulatedOperationMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:PacificorpMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:MidamericanFundingMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberus-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:NorthernPowergridHoldingsMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberus-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberus-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:BHERenewablesMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:BerkshireHathawayEnergyAndOtherMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316bhe:PacificorpMember2020-01-012020-03-310001081316bhe:MidamericanFundingMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Member2020-01-012020-03-310001081316bhe:NorthernPowergridHoldingsMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMember2020-01-012020-03-310001081316bhe:BHETransmissionMember2020-01-012020-03-310001081316bhe:BHERenewablesMember2020-01-012020-03-310001081316bhe:BerkshireHathawayEnergyAndOtherMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:PacificorpMember2020-01-012020-03-310001081316bhe:MidamericanFundingMemberbhe:NoncontractswithcustomerrevenueMember2020-01-012020-03-310001081316bhe:NVEnergyInc.Memberbhe:NoncontractswithcustomerrevenueMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:NorthernPowergridHoldingsMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMemberbhe:NoncontractswithcustomerrevenueMember2020-01-012020-03-310001081316bhe:BHETransmissionMemberbhe:NoncontractswithcustomerrevenueMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:BHERenewablesMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:BerkshireHathawayEnergyAndOtherMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMember2020-01-012020-03-310001081316bhe:HomeservicesMember2021-01-012021-03-310001081316bhe:HomeservicesMemberbhe:ResidentialrealestatebrokerageMember2021-01-012021-03-310001081316bhe:HomeservicesMemberbhe:ResidentialrealestatebrokerageMember2020-01-012020-03-310001081316bhe:HomeservicesMemberbhe:RealestatefranchiseMember2021-01-012021-03-310001081316bhe:HomeservicesMemberbhe:RealestatefranchiseMember2020-01-012020-03-310001081316bhe:HomeservicesMemberbhe:ResidentialrealestatebrokerageandmortgagebusinessesMember2021-01-012021-03-310001081316bhe:HomeservicesMemberbhe:ResidentialrealestatebrokerageandmortgagebusinessesMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:HomeservicesMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:HomeservicesMember2020-01-012020-03-310001081316bhe:BHEPipelineGroupMember2021-04-012021-03-3100010813162022-04-01bhe:BHEPipelineGroupMember2021-03-310001081316bhe:BHEPipelineGroupMember2021-03-310001081316bhe:BHETransmissionMember2021-04-012021-03-3100010813162022-04-01bhe:BHETransmissionMember2021-03-310001081316bhe:BHETransmissionMember2021-03-3100010813162021-04-012021-03-3100010813162022-04-012021-03-310001081316us-gaap:CommonStockMember2020-01-012020-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-12-310001081316us-gaap:AccumulatedTranslationAdjustmentMember2019-12-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2019-12-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-01-012020-03-310001081316us-gaap:AccumulatedTranslationAdjustmentMember2020-01-012020-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-01-012020-03-310001081316us-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2020-01-012020-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-03-310001081316us-gaap:AccumulatedTranslationAdjustmentMember2020-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-12-310001081316us-gaap:AccumulatedTranslationAdjustmentMember2020-12-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-12-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-01-012021-03-310001081316us-gaap:AccumulatedTranslationAdjustmentMember2021-01-012021-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-01-012021-03-310001081316us-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-03-310001081316us-gaap:AccumulatedTranslationAdjustmentMember2021-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-03-310001081316bhe:BerkshireHathawayEnergyRenewablesMember2021-01-012021-03-310001081316bhe:BerkshireHathawayEnergyRenewablesMember2020-01-012020-03-310001081316bhe:HomeservicesMember2020-01-012020-03-310001081316bhe:PacificorpMember2021-03-310001081316bhe:PacificorpMember2020-12-310001081316bhe:MidamericanFundingMember2021-03-310001081316bhe:MidamericanFundingMember2020-12-310001081316bhe:NVEnergyInc.Member2021-03-310001081316bhe:NVEnergyInc.Member2020-12-310001081316bhe:NorthernPowergridHoldingsMember2021-03-310001081316bhe:NorthernPowergridHoldingsMember2020-12-310001081316bhe:BHEPipelineGroupMember2020-12-310001081316bhe:BHETransmissionMember2020-12-310001081316bhe:BerkshireHathawayEnergyRenewablesMember2021-03-310001081316bhe:BerkshireHathawayEnergyRenewablesMember2020-12-310001081316bhe:HomeservicesMember2021-03-310001081316bhe:HomeservicesMember2020-12-310001081316bhe:BerkshireHathawayEnergyAndOtherMember2021-03-310001081316bhe:BerkshireHathawayEnergyAndOtherMember2020-12-310001081316country:US2021-01-012021-03-310001081316country:US2020-01-012020-03-310001081316country:GB2021-01-012021-03-310001081316country:GB2020-01-012020-03-310001081316country:CA2021-01-012021-03-310001081316country:CA2020-01-012020-03-310001081316bhe:ThePhilippinesandotherMember2021-01-012021-03-310001081316bhe:ThePhilippinesandotherMember2020-01-012020-03-310001081316bhe:PacificorpMember2021-03-310001081316bhe:PacificorpMember2020-12-310001081316bhe:PacificorpMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:RetainedEarningsMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:PreferredStockMember2019-12-310001081316bhe:PacificorpMemberus-gaap:CommonStockMember2019-12-310001081316bhe:PacificorpMemberus-gaap:AdditionalPaidInCapitalMember2019-12-310001081316bhe:PacificorpMemberus-gaap:RetainedEarningsMember2019-12-310001081316bhe:PacificorpMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310001081316bhe:PacificorpMember2019-12-310001081316bhe:PacificorpMemberus-gaap:RetainedEarningsMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:PreferredStockMember2020-03-310001081316bhe:PacificorpMemberus-gaap:CommonStockMember2020-03-310001081316bhe:PacificorpMemberus-gaap:AdditionalPaidInCapitalMember2020-03-310001081316bhe:PacificorpMemberus-gaap:RetainedEarningsMember2020-03-310001081316bhe:PacificorpMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2020-03-310001081316bhe:PacificorpMember2020-03-310001081316bhe:PacificorpMemberus-gaap:PreferredStockMember2020-12-310001081316bhe:PacificorpMemberus-gaap:CommonStockMember2020-12-310001081316bhe:PacificorpMemberus-gaap:AdditionalPaidInCapitalMember2020-12-310001081316bhe:PacificorpMemberus-gaap:RetainedEarningsMember2020-12-310001081316bhe:PacificorpMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310001081316bhe:PacificorpMemberus-gaap:PreferredStockMember2021-03-310001081316bhe:PacificorpMemberus-gaap:CommonStockMember2021-03-310001081316bhe:PacificorpMemberus-gaap:AdditionalPaidInCapitalMember2021-03-310001081316bhe:PacificorpMemberus-gaap:RetainedEarningsMember2021-03-310001081316bhe:PacificorpMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2021-03-310001081316bhe:PacificorpMembersrt:MinimumMember2021-01-012021-03-310001081316bhe:PacificorpMembersrt:MaximumMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:ElectricityGenerationPlantNonNuclearMember2021-03-310001081316bhe:PacificorpMemberus-gaap:ElectricityGenerationPlantNonNuclearMember2020-12-310001081316us-gaap:ElectricTransmissionMemberbhe:PacificorpMember2021-03-310001081316us-gaap:ElectricTransmissionMemberbhe:PacificorpMember2020-12-310001081316bhe:PacificorpMemberus-gaap:ElectricDistributionMember2021-03-310001081316bhe:PacificorpMemberus-gaap:ElectricDistributionMember2020-12-310001081316bhe:PacificorpMemberus-gaap:OtherIntangibleAssetsMember2021-03-310001081316bhe:PacificorpMemberus-gaap:OtherIntangibleAssetsMember2020-12-310001081316bhe:PacificorpMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2021-03-310001081316bhe:PacificorpMemberus-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2020-12-310001081316bhe:PacificorpMemberus-gaap:UnregulatedOperationMembersrt:MinimumMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:UnregulatedOperationMembersrt:MaximumMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:UnregulatedOperationMember2021-03-310001081316bhe:PacificorpMemberus-gaap:UnregulatedOperationMember2020-12-310001081316bhe:PacificorpMembersrt:MinimumMemberus-gaap:ComputerSoftwareIntangibleAssetMember2021-01-012021-03-310001081316bhe:PacificorpMembersrt:MaximumMemberus-gaap:ComputerSoftwareIntangibleAssetMember2021-01-012021-03-310001081316bhe:PacificorpMemberbhe:RevisedDepreciationRates2021DepreciationIncreaseMember2021-01-012021-03-310001081316bhe:BHEMemberbhe:PacificorpMember2021-01-012021-03-310001081316bhe:BHEMemberbhe:PacificorpMember2020-01-012020-03-310001081316bhe:PacificorpMembercountry:USus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-03-310001081316bhe:PacificorpMembercountry:USus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-03-310001081316bhe:PacificorpMembercountry:USus-gaap:PensionPlansDefinedBenefitMember2021-03-310001081316bhe:PacificorpMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentAssetsMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherCurrentLiabilitiesMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherCurrentAssetsMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherNoncurrentAssetsMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherCurrentLiabilitiesMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherNoncurrentLiabilitiesMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentAssetsMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherCurrentLiabilitiesMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherCurrentAssetsMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherNoncurrentAssetsMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherCurrentLiabilitiesMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMember2020-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMember2019-12-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMember2021-01-012021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMember2020-01-012020-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberus-gaap:NondesignatedMember2020-03-31utr:MWh0001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberbhe:ElectricityPurchasesSalesNetInMegawattHoursMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberbhe:ElectricityPurchasesSalesNetInMegawattHoursMember2020-12-31bhe:Dth0001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberbhe:NaturalgaspurchasessalesindecathermsMember2021-03-310001081316us-gaap:CommodityContractMemberbhe:PacificorpMemberbhe:NaturalgaspurchasessalesindecathermsMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel1Member2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Member2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:EquityFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel1Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel1Member2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Member2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:MoneyMarketFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:EquityFundsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel1Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel2Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:PacificorpMember2020-12-310001081316bhe:PacificorpMemberus-gaap:FairValueInputsLevel2Member2021-03-310001081316bhe:PacificorpMemberus-gaap:FairValueInputsLevel2Member2020-12-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:ResidentialMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:ResidentialMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:CommercialMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:CommercialMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:IndustrialMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:IndustrialMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:OtherMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberbhe:OtherMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:PacificorpMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:PacificorpMemberbhe:RegulatedwholesaleMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMemberbhe:RegulatedtransmissionanddistributionMember2020-01-012020-03-310001081316bhe:PacificorpMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:PacificorpMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:PacificorpMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:PacificorpMemberbhe:NoncontractswithcustomerrevenueMember2021-01-012021-03-310001081316bhe:PacificorpMemberbhe:NoncontractswithcustomerrevenueMember2020-01-012020-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:ElectricityUsRegulatedMember2020-01-012020-03-310001081316bhe:RegulatednaturalgasandotherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:RegulatednaturalgasandotherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316us-gaap:CommonStockMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2019-12-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2019-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2019-12-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMember2019-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316us-gaap:CommonStockMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2020-03-310001081316us-gaap:RetainedEarningsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-03-310001081316us-gaap:CommonStockMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:CommonStockMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2021-03-310001081316us-gaap:RetainedEarningsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316bhe:ElectricOperationsMembersrt:MinimumMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316srt:MaximumMemberbhe:ElectricOperationsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:ElectricOperationsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-03-310001081316bhe:ElectricOperationsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-12-310001081316srt:MinimumMemberus-gaap:NaturalGasProcessingPlantMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316srt:MaximumMemberus-gaap:NaturalGasProcessingPlantMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316us-gaap:NaturalGasProcessingPlantMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-03-310001081316us-gaap:NaturalGasProcessingPlantMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-12-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-12-310001081316us-gaap:UnregulatedOperationMembersrt:MinimumMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMembersrt:MaximumMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316bhe:BerkshireHathawayEnergyMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:BerkshireHathawayEnergyMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316country:USbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-03-310001081316country:USbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-03-310001081316country:USbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:PensionPlansDefinedBenefitMember2021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:MunicipalBondsMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:DomesticEquitySecuritiesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ForeignEquitySecuritiesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:FairValueInputsLevel2Memberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:ElectricTransmissionMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:ElectricTransmissionMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:PriortoSeptember2016Member2021-01-012021-03-310001081316bhe:November2013toFebruary2015Memberus-gaap:ElectricTransmissionMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:ElectricTransmissionMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:February2015throughMay2016Member2021-01-012021-03-310001081316bhe:Nov2019OrderForNov2013toFeb2015andSept2016ForwardMemberus-gaap:ElectricTransmissionMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:May2020OrderForNov2013toFeb2015andSept2016ForwardMemberus-gaap:ElectricTransmissionMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:UnfavorableRegulatoryActionMemberus-gaap:ElectricTransmissionMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:ResidentialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:ResidentialMemberbhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:ResidentialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:CommercialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:CommercialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:CommercialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:IndustrialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:IndustrialMemberbhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:IndustrialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2021-01-012021-03-310001081316bhe:NaturalgasdistributiontransportationonlyservicesMemberbhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NaturalgasdistributiontransportationonlyservicesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:OtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:OtherMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:OtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedwholesaleMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MultivaluetransmissionprojectsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ElectricityTransmissionMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:MultivaluetransmissionprojectsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ElectricityTransmissionMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:OthercustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:OthercustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:NoncontractswithcustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:NoncontractswithcustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:ResidentialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:ResidentialMemberbhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:ResidentialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:CommercialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:CommercialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:CommercialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:IndustrialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:IndustrialMemberbhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:IndustrialMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2020-01-012020-03-310001081316bhe:NaturalgasdistributiontransportationonlyservicesMemberbhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NaturalgasdistributiontransportationonlyservicesMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:OtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:OtherMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:OtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedretailelectricMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:RegulatedretailgasMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMemberbhe:RegulatedretailMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:RegulatedwholesaleMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MultivaluetransmissionprojectsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ElectricityTransmissionMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:MultivaluetransmissionprojectsMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberbhe:ElectricityTransmissionMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:OthercustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:OthercustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:NoncontractswithcustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:NoncontractswithcustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-31bhe:ReportableSegments0001081316bhe:ElectricityUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316us-gaap:CorporateAndOtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:CorporateAndOtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316us-gaap:CorporateAndOtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2021-03-310001081316us-gaap:CorporateAndOtherMemberbhe:MidamericanEnergyCompanyAndSubsidiariesMember2020-12-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMember2021-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMember2020-12-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMemberus-gaap:ElectricityUsRegulatedMember2021-01-012021-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMemberus-gaap:ElectricityUsRegulatedMember2020-01-012020-03-310001081316bhe:RegulatednaturalgasandotherMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-01-012021-03-310001081316bhe:RegulatednaturalgasandotherMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-01-012020-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMember2020-01-012020-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2019-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2019-12-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMember2019-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-01-012020-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2020-03-310001081316us-gaap:RetainedEarningsMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMember2020-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-01-012021-03-310001081316bhe:MidAmericanFundingLLCAndSubsidiariesMemberus-gaap:AdditionalPaidInCapitalMember2021-03-310001081316us-gaap:RetainedEarningsMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-03-310001081316bhe:BerkshireHathawayEnergyMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-01-012021-03-310001081316bhe:BerkshireHathawayEnergyMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-01-012020-03-310001081316us-gaap:FairValueInputsLevel2Memberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:MidAmericanFundingLLCAndSubsidiariesMemberbhe:NonregulatedproductsandservicesMember2020-01-012020-03-310001081316us-gaap:CorporateAndOtherMemberus-gaap:UnregulatedOperationMemberbhe:MidAmericanFundingLLCAndSubsidiariesMemberbhe:NonregulatedproductsandservicesMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-01-012020-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-01-012021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-01-012020-03-310001081316us-gaap:CorporateAndOtherMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-01-012021-03-310001081316us-gaap:CorporateAndOtherMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-12-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-12-310001081316us-gaap:CorporateAndOtherMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2021-03-310001081316us-gaap:CorporateAndOtherMemberbhe:MidAmericanFundingLLCAndSubsidiariesMember2020-12-310001081316bhe:NevadaPowerCompanyMember2021-03-310001081316bhe:NevadaPowerCompanyMember2020-12-310001081316bhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316us-gaap:CommonStockMemberbhe:NevadaPowerCompanyMember2019-12-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:NevadaPowerCompanyMember2019-12-310001081316us-gaap:RetainedEarningsMemberbhe:NevadaPowerCompanyMember2019-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:NevadaPowerCompanyMember2019-12-310001081316bhe:NevadaPowerCompanyMember2019-12-310001081316us-gaap:RetainedEarningsMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316us-gaap:CommonStockMemberbhe:NevadaPowerCompanyMember2020-03-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:NevadaPowerCompanyMember2020-03-310001081316us-gaap:RetainedEarningsMemberbhe:NevadaPowerCompanyMember2020-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:NevadaPowerCompanyMember2020-03-310001081316bhe:NevadaPowerCompanyMember2020-03-310001081316us-gaap:CommonStockMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316us-gaap:CommonStockMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:RetainedEarningsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:NevadaPowerCompanyMember2021-03-310001081316srt:MinimumMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316srt:MaximumMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:UnregulatedOperationMembersrt:MinimumMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:NevadaPowerCompanyMember2020-12-310001081316country:USbhe:NVEnergyInc.Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:OtherNoncurrentAssetsMemberbhe:NevadaPowerCompanyMemberus-gaap:QualifiedPlanMember2021-03-310001081316country:USbhe:NVEnergyInc.Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:OtherNoncurrentAssetsMemberbhe:NevadaPowerCompanyMemberus-gaap:QualifiedPlanMember2020-12-310001081316country:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberus-gaap:OtherCurrentLiabilitiesMemberbhe:NevadaPowerCompanyMember2021-03-310001081316country:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberus-gaap:OtherCurrentLiabilitiesMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:OtherNoncurrentLiabilitiesMembercountry:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:OtherNoncurrentLiabilitiesMembercountry:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberbhe:NevadaPowerCompanyMember2020-12-310001081316country:USus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberus-gaap:OtherNoncurrentAssetsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316country:USus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberus-gaap:OtherNoncurrentAssetsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel3Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel3Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:CommodityMemberbhe:NevadaPowerCompanyMember2020-12-310001081316us-gaap:CommodityMemberbhe:NevadaPowerCompanyMember2019-12-310001081316us-gaap:CommodityMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316us-gaap:CommodityMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316us-gaap:CommodityMemberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:CommodityMemberbhe:NevadaPowerCompanyMember2020-03-310001081316us-gaap:FairValueInputsLevel2Memberbhe:NevadaPowerCompanyMember2021-03-310001081316us-gaap:FairValueInputsLevel2Memberbhe:NevadaPowerCompanyMember2020-12-310001081316bhe:RegulatedretailelectricMemberbhe:ResidentialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:ResidentialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:IndustrialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:IndustrialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:OtherMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:OtherMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:DistributiononlyserviceMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:DistributiononlyserviceMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberus-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316us-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316us-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:NevadaPowerCompanyMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:NevadaPowerCompanyMember2020-01-012020-03-310001081316bhe:SierraPacificPowerCompanyMember2021-03-310001081316bhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:ElectricityUsRegulatedMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:ElectricityUsRegulatedMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316us-gaap:NaturalGasUsRegulatedMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:NaturalGasUsRegulatedMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316us-gaap:RetainedEarningsMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316us-gaap:CommonStockMemberbhe:SierraPacificPowerCompanyMember2019-12-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:SierraPacificPowerCompanyMember2019-12-310001081316us-gaap:RetainedEarningsMemberbhe:SierraPacificPowerCompanyMember2019-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:SierraPacificPowerCompanyMember2019-12-310001081316bhe:SierraPacificPowerCompanyMember2019-12-310001081316us-gaap:CommonStockMemberbhe:SierraPacificPowerCompanyMember2020-03-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:SierraPacificPowerCompanyMember2020-03-310001081316us-gaap:RetainedEarningsMemberbhe:SierraPacificPowerCompanyMember2020-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:SierraPacificPowerCompanyMember2020-03-310001081316bhe:SierraPacificPowerCompanyMember2020-03-310001081316us-gaap:CommonStockMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:RetainedEarningsMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:CommonStockMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:AdditionalPaidInCapitalMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:RetainedEarningsMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316srt:MinimumMemberus-gaap:ElectricityGenerationPlantNonNuclearMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316srt:MaximumMemberus-gaap:ElectricityGenerationPlantNonNuclearMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:ElectricityGenerationPlantNonNuclearMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:ElectricityGenerationPlantNonNuclearMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316srt:MinimumMemberus-gaap:NaturalGasProcessingPlantMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316srt:MaximumMemberus-gaap:NaturalGasProcessingPlantMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:NaturalGasProcessingPlantMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:NaturalGasProcessingPlantMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316bhe:CommonFacilitiesMembersrt:MinimumMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316srt:MaximumMemberbhe:CommonFacilitiesMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:CommonFacilitiesMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316bhe:CommonFacilitiesMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:UnregulatedOperationMembersrt:MinimumMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316bhe:CommonFacilitiesMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316bhe:CommonFacilitiesMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316country:USbhe:NVEnergyInc.Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:OtherNoncurrentAssetsMemberbhe:SierraPacificPowerCompanyMemberus-gaap:QualifiedPlanMember2021-03-310001081316country:USbhe:NVEnergyInc.Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:OtherNoncurrentAssetsMemberbhe:SierraPacificPowerCompanyMemberus-gaap:QualifiedPlanMember2020-12-310001081316country:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberus-gaap:OtherCurrentLiabilitiesMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316country:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberus-gaap:OtherCurrentLiabilitiesMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:OtherNoncurrentLiabilitiesMembercountry:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:OtherNoncurrentLiabilitiesMembercountry:USus-gaap:OtherPensionPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:OtherNoncurrentLiabilitiesMembercountry:USus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:OtherNoncurrentLiabilitiesMembercountry:USus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberbhe:NVEnergyInc.Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:FairValueInputsLevel2Memberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:FairValueInputsLevel2Memberbhe:SierraPacificPowerCompanyMember2020-12-310001081316bhe:RegulatedretailelectricMemberbhe:ResidentialMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:ResidentialMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:ResidentialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:ResidentialMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:ResidentialMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:ResidentialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:FullybundledcustomerMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:FullybundledcustomerMemberbhe:CommercialMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:IndustrialMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:IndustrialMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:IndustrialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:IndustrialMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:IndustrialMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:IndustrialMemberbhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:OtherMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledcustomerMemberbhe:OtherMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:FullybundledcustomerMemberbhe:OtherMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:OtherMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledcustomerMemberbhe:OtherMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:FullybundledcustomerMemberbhe:OtherMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledcustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledcustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:FullybundledcustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:DistributiononlyserviceMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:DistributiononlyserviceMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:DistributiononlyserviceMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:DistributiononlyserviceMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:DistributiononlyserviceMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:DistributiononlyserviceMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledanddistributionservicesonlycustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledanddistributionservicesonlycustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:FullybundledanddistributionservicesonlycustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedretailelectricMemberbhe:FullybundledanddistributionservicesonlycustomerMemberbhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:FullybundledanddistributionservicesonlycustomerMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:FullybundledanddistributionservicesonlycustomerMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberus-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberus-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316us-gaap:RegulatedOperationMemberbhe:RegulatedwholesaletransmissionandotherMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316us-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedElectricMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberus-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316us-gaap:RegulatedOperationMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:RegulatedElectricMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:NoncontractswithcustomerrevenueMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:RegulatedElectricMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:NoncontractswithcustomerrevenueMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedElectricMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedGasMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:RegulatedElectricMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:RegulatedGasMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-31bhe:TheNumberOfReportableSegments0001081316bhe:ElectricityUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2021-01-012021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2020-01-012020-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316bhe:ElectricityUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316bhe:NaturalGasUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316bhe:NaturalGasUSRegulatedMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316us-gaap:CorporateAndOtherMemberbhe:SierraPacificPowerCompanyMember2021-03-310001081316us-gaap:CorporateAndOtherMemberbhe:SierraPacificPowerCompanyMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MemberUnitsMember2019-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:EasternEnergyGasHoldingsLLCMember2019-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NoncontrollingInterestMember2019-12-310001081316bhe:EasternEnergyGasHoldingsLLCMember2019-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MemberUnitsMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NoncontrollingInterestMember2020-01-012020-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MemberUnitsMember2020-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:EasternEnergyGasHoldingsLLCMember2020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NoncontrollingInterestMember2020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMember2020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MemberUnitsMember2020-12-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NoncontrollingInterestMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MemberUnitsMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NoncontrollingInterestMember2021-01-012021-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MemberUnitsMember2021-03-310001081316us-gaap:AccumulatedOtherComprehensiveIncomeMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NoncontrollingInterestMember2021-03-310001081316us-gaap:GeneralPartnerMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:CovePointLNGLPMember2021-01-012021-03-310001081316us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:CovePointLNGLPMemberus-gaap:LimitedPartnerMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:IroquoisGasTransmissionSystemL.P.Member2021-01-012021-03-310001081316us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberbhe:FederalEnergyRegulatoryCommissionMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:IroquoisGasTransmissionSystemL.P.Member2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:CovePointLNGLPMember2020-07-012020-07-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:DisposalGroupDisposedOfByMeansOtherThanSaleNotDiscontinuedOperationsMemberbhe:CovePointLNGLPMemberbhe:GTSTransactionMember2020-11-012020-11-300001081316bhe:EasternEnergyGasHoldingsLLCMembersrt:MinimumMemberus-gaap:PipelinesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316srt:MaximumMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:PipelinesMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:PipelinesMemberus-gaap:RegulatedOperationMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:PipelinesMemberus-gaap:RegulatedOperationMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherIntangibleAssetsMembersrt:MinimumMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316srt:MaximumMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherIntangibleAssetsMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherIntangibleAssetsMemberus-gaap:RegulatedOperationMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherIntangibleAssetsMemberus-gaap:RegulatedOperationMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:RegulatedOperationMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:RegulatedOperationMember2020-12-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:LNGFacilityMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:LNGFacilityMember2021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:LNGFacilityMember2020-12-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherIntangibleAssetsMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherIntangibleAssetsMember2021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherIntangibleAssetsMember2020-12-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:EquityFundsMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:EquityFundsMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:IroquoisGasTransmissionSystemL.P.Member2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:IroquoisGasTransmissionSystemL.P.Member2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:BankTimeDepositsMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:BankTimeDepositsMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:WhiteRiverHubLLCMember2021-03-310001081316bhe:A2012FERCCaseDisallowanceOfPlantResolvedInQ42018Memberbhe:EasternGasTransmissionAndStorageIncMember2018-01-012018-12-310001081316bhe:EasternGasTransmissionAndStorageIncMemberbhe:FERCCaseDisallowanceOfCapitalizedAFUDCResolvedInDecember2020Member2020-12-012020-12-310001081316bhe:FederalEnergyRegulatoryCommissionMemberbhe:GeneralRateCaseMemberbhe:CovePointLNGLPMember2020-01-012020-01-310001081316bhe:FederalEnergyRegulatoryCommissionMemberbhe:GeneralRateCaseIncreaseInRevenueMemberbhe:CovePointLNGLPMember2020-08-012020-08-010001081316bhe:FederalEnergyRegulatoryCommissionMemberbhe:GeneralRateCaseDecreaseInDepreciationExpenseMemberbhe:CovePointLNGLPMember2020-08-012020-08-010001081316bhe:FederalEnergyRegulatoryCommissionMemberbhe:GeneralRateCaseProvisionMemberbhe:CovePointLNGLPMember2020-08-012020-10-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:CovePointLNGLPMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:CovePointLNGLPMember2020-01-012020-03-310001081316bhe:BHEMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316country:USbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-03-310001081316country:USbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-03-310001081316country:USbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-03-310001081316country:USbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:MoneyMarketFundsMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Member2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:InterestRateContractMember2021-03-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Member2020-12-310001081316us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:InterestRateContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:InterestRateContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2020-12-310001081316us-gaap:FairValueMeasurementsRecurringMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:InterestRateContractMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:RegulatedretailgasMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:RegulatedwholesaleMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:RegulatedwholesaleMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:OthercustomerrevenueMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:RegulatedOperationMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:RegulatedOperationMember2020-01-012020-03-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316us-gaap:UnregulatedOperationMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316bhe:NoncontractswithcustomerrevenueMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMember2021-04-012021-03-3100010813162022-04-01bhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberbhe:EasternEnergyGasHoldingsLLCMember2019-12-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberbhe:EasternEnergyGasHoldingsLLCMember2019-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociAttributableToNoncontrollingInterestMember2019-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2019-12-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociAttributableToNoncontrollingInterestMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2020-01-012020-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberbhe:EasternEnergyGasHoldingsLLCMember2020-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberbhe:EasternEnergyGasHoldingsLLCMember2020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociAttributableToNoncontrollingInterestMember2020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2020-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociAttributableToNoncontrollingInterestMember2020-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2020-12-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociAttributableToNoncontrollingInterestMember2021-01-012021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-03-310001081316us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociAttributableToNoncontrollingInterestMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:AociIncludingPortionAttributableToNoncontrollingInterestMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberbhe:DominionEnergyIncMemberbhe:CovePointLNGLPMember2019-11-012019-11-300001081316bhe:DominionEnergyIncMemberbhe:CovePointLNGLPMember2019-12-012019-12-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:DisposalGroupDisposedOfByMeansOtherThanSaleNotDiscontinuedOperationsMemberbhe:GTSTransactionMemberbhe:CovePointLNGLPMember2020-11-012020-11-300001081316bhe:SharedServicesMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberbhe:CarolinaGasServicesIncMember2021-01-012021-03-310001081316bhe:SharedServicesMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberbhe:CarolinaGasServicesIncMember2020-01-012020-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberbhe:CarolinaGasServicesIncMember2021-03-310001081316bhe:EasternEnergyGasHoldingsLLCMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberbhe:CarolinaGasServicesIncMember2020-12-310001081316bhe:SharedServicesMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:DominionEnergyQuestarPipelineServicesIncMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2020-01-012020-03-310001081316bhe:SharedServicesMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:DominionEnergyServicesIncMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2020-01-012020-03-310001081316srt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316srt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMember2018-01-012018-12-310001081316bhe:DominionEnergyIncMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NotesReceivableMember2020-01-012020-03-310001081316srt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberus-gaap:NotesReceivableMemberbhe:EastOhioMember2020-01-012020-03-310001081316bhe:DominionEnergyIncMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-03-310001081316bhe:BerkshireHathawayEnergyMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:TaxReceivableMember2021-03-310001081316bhe:BerkshireHathawayEnergyMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:TaxReceivableMember2020-12-310001081316srt:AffiliatedEntityMemberbhe:AdministrativeAndTechnicalServicesMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:DEIBHEMidAmericanEnergyNorthernNaturalGasAndOtherRelatedPartiesMember2021-01-012021-03-310001081316srt:AffiliatedEntityMemberbhe:AdministrativeAndTechnicalServicesMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316srt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:TransportationAndStorageServicesMember2021-01-012021-03-310001081316bhe:OtherAssetsDueFromAffiliatesMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMember2021-01-012021-03-310001081316bhe:OtherAssetsDueFromAffiliatesMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMember2020-01-012020-12-310001081316srt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:IntercompanyRevolvingCreditAgreementWithBHEGTSMemberbhe:BHEGTSLLCMember2021-03-310001081316us-gaap:LineOfCreditMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:BHEGTSLLCMemberbhe:IntercompanyRevolvingCreditAgreementWithBHEGTSMember2020-12-310001081316bhe:BHEGTSLLCMembersrt:AffiliatedEntityMemberbhe:BHEGTSAndEasternEnergyIntercompanyRevolvingCreditAgreementMemberbhe:EasternEnergyGasHoldingsLLCMember2021-02-280001081316bhe:BHEGTSLLCMembersrt:AffiliatedEntityMemberbhe:BHEGTSAndEasternEnergyIntercompanyRevolvingCreditAgreementMemberbhe:EasternEnergyGasHoldingsLLCMember2021-03-310001081316bhe:BHEGTSLLCMembersrt:AffiliatedEntityMemberbhe:BHEGTSAndEasternEnergyIntercompanyRevolvingCreditAgreementMemberbhe:EasternEnergyGasHoldingsLLCMember2020-12-310001081316srt:AffiliatedEntityMemberbhe:MidamericanEnergyCompanyMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:SharedBenefitPlanMember2021-03-310001081316srt:AffiliatedEntityMemberbhe:MidamericanEnergyCompanyMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:SharedBenefitPlanMember2020-12-310001081316us-gaap:LineOfCreditMembersrt:AffiliatedEntityMemberbhe:EasternEnergyGasHoldingsLLCMemberbhe:BHEGTSLLCMemberbhe:IntercompanyRevolvingCreditAgreementWithBHEGTSMember2021-03-31

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Indicate by check mark whether the registrants have submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrants were required to submit such files). Yes  x  No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrants have elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o

Indicate by check mark whether the registrants are a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  ☐  No  x

All shares of outstanding common stock of Berkshire Hathaway Energy Company are privately held by a limited group of investors. As of April 29, 2021, 76,368,874 shares of common stock, no par value, were outstanding.

All shares of outstanding common stock of PacifiCorp are indirectly owned by Berkshire Hathaway Energy Company. As of April 29, 2021, 357,060,915 shares of common stock, no par value, were outstanding.

All of the member's equity of MidAmerican Funding, LLC is held by its parent company, Berkshire Hathaway Energy Company, as of April 29, 2021.

All shares of outstanding common stock of MidAmerican Energy Company are owned by its parent company, MHC Inc., which is a direct, wholly owned subsidiary of MidAmerican Funding, LLC. As of April 29, 2021, 70,980,203 shares of common stock, no par value, were outstanding.

All shares of outstanding common stock of Nevada Power Company are owned by its parent company, NV Energy, Inc., which is an indirect, wholly owned subsidiary of Berkshire Hathaway Energy Company. As of April 29, 2021, 1,000 shares of common stock, $1.00 stated value, were outstanding.

All shares of outstanding common stock of Sierra Pacific Power Company are owned by its parent company, NV Energy, Inc. As of April 29, 2021, 1,000 shares of common stock, $3.75 par value, were outstanding.

All of the member's equity of Eastern Energy Gas Holdings, LLC is held indirectly by its parent company, Berkshire Hathaway Energy Company, as of April 29, 2021.

This combined Form 10-Q is separately filed by Berkshire Hathaway Energy Company, PacifiCorp, MidAmerican Funding, LLC, MidAmerican Energy Company, Nevada Power Company, Sierra Pacific Power Company and Eastern Energy Gas Holdings, LLC. Information contained herein relating to any individual company is filed by such company on its own behalf. Each company makes no representation as to information relating to the other companies.

TABLE OF CONTENTS

 

PART I

 

Item 1.			Financial Statements			1
Item 2.			Management's Discussion and Analysis of Financial Condition and Results of Operations			2
Item 3.			Quantitative and Qualitative Disclosures About Market Risk			163
Item 4.			Controls and Procedures			163

 

PART II

 

Item 1.			Legal Proceedings			164
Item 1A.			Risk Factors			164
Item 2.			Unregistered Sales of Equity Securities and Use of Proceeds			164
Item 3.			Defaults Upon Senior Securities			164
Item 4.			Mine Safety Disclosures			165
Item 5.			Other Information			165
Item 6.			Exhibits			165
Signatures						168

Definition of Abbreviations and Industry Terms

When used in Forward-Looking Statements, Part I - Items 2 through 3, and Part II - Items 1 through 6, the following terms have the definitions indicated.

Berkshire Hathaway Energy Company and Related Entities
BHE						Berkshire Hathaway Energy Company
Berkshire Hathaway						Berkshire Hathaway Inc.
Berkshire Hathaway Energy or the Company						Berkshire Hathaway Energy Company and its subsidiaries
PacifiCorp						PacifiCorp and its subsidiaries
MidAmerican Funding						MidAmerican Funding, LLC and its subsidiaries
MidAmerican Energy						MidAmerican Energy Company
NV Energy						NV Energy, Inc. and its subsidiaries
Nevada Power						Nevada Power Company and its subsidiaries
Sierra Pacific						Sierra Pacific Power Company and its subsidiaries
Nevada Utilities						Nevada Power Company and its subsidiaries and Sierra Pacific Power Company and its subsidiaries
Eastern Energy Gas						Eastern Energy Gas Holdings, LLC and its subsidiaries
Registrants						Berkshire Hathaway Energy Company, PacifiCorp and its subsidiaries, MidAmerican Funding, LLC and its subsidiaries, MidAmerican Energy Company, Nevada Power Company and its subsidiaries, Sierra Pacific Power Company and its subsidiaries and Eastern Energy Gas Holdings, LLC and its subsidiaries
Northern Powergrid						Northern Powergrid Holdings Company
BHE Pipeline Group						BHE GT&S, LLC, Northern Natural Gas Company and Kern River Gas Transmission Company
BHE GT&S						BHE GT&S, LLC
Northern Natural Gas						Northern Natural Gas Company
Kern River						Kern River Gas Transmission Company
BHE Transmission						BHE Canada Holdings Corporation and BHE U.S. Transmission, LLC
BHE Canada						BHE Canada Holdings Corporation
AltaLink						AltaLink, L.P.
BHE U.S. Transmission						BHE U.S. Transmission, LLC
BHE Renewables						BHE Renewables, LLC and CalEnergy Philippines
HomeServices						HomeServices of America, Inc. and its subsidiaries
Utilities						PacifiCorp and its subsidiaries, MidAmerican Energy Company, Nevada Power Company and its subsidiaries and Sierra Pacific Power Company and its subsidiaries
Domestic Regulated Businesses						PacifiCorp and its subsidiaries, MidAmerican Energy Company, Nevada Power Company and its subsidiaries, Sierra Pacific Power Company and its subsidiaries, BHE GT&S, LLC, Northern Natural Gas Company and Kern River Gas Transmission Company
GT&S Transaction						The acquisition of substantially all of the natural gas transmission and storage business of Dominion Energy and Dominion Questar, exclusive of the Questar Pipeline Group on November 1, 2020
DEI						Dominion Energy, Inc.
Questar Pipeline Group						Dominion Energy Questar Pipeline, LLC and related entities

Forward-Looking Statements

This report contains statements that do not directly or exclusively relate to historical facts. These statements are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements can typically be identified by the use of forward-looking words, such as "will," "may," "could," "project," "believe," "anticipate," "expect," "estimate," "continue," "intend," "potential," "plan," "forecast" and similar terms. These statements are based upon the relevant Registrant's current intentions, assumptions, expectations and beliefs and are subject to risks, uncertainties and other important factors. Many of these factors are outside the control of each Registrant and could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include, among others:

•general economic, political and business conditions, as well as changes in, and compliance with, laws and regulations, including income tax reform, initiatives regarding deregulation and restructuring of the utility industry, and reliability and safety standards, affecting the respective Registrant's operations or related industries;

•changes in, and compliance with, environmental laws, regulations, decisions and policies that could, among other items, increase operating and capital costs, reduce facility output, accelerate facility retirements or delay facility construction or acquisition;

•the outcome of regulatory rate reviews and other proceedings conducted by regulatory agencies or other governmental and legal bodies and the respective Registrant's ability to recover costs through rates in a timely manner;

•changes in economic, industry, competition or weather conditions, as well as demographic trends, new technologies and various conservation, energy efficiency and private generation measures and programs, that could affect customer growth and usage, electricity and natural gas supply or the respective Registrant's ability to obtain long-term contracts with customers and suppliers;

•performance, availability and ongoing operation of the respective Registrant's facilities, including facilities not operated by the Registrants, due to the impacts of market conditions, outages and repairs, transmission constraints, weather, including wind, solar and hydroelectric conditions, and operating conditions;

•the effects of catastrophic and other unforeseen events, which may be caused by factors beyond the control of each respective Registrant or by a breakdown or failure of the Registrants' operating assets, including severe storms, floods, fires, earthquakes, explosions, landslides, an electromagnetic pulse, mining incidents, litigation, wars, terrorism, pandemics (including potentially in relation to COVID-19), embargoes, and cyber security attacks, data security breaches, disruptions, or other malicious acts;

•the ability to economically obtain insurance coverage, or any insurance coverage at all, sufficient to cover losses arising from catastrophic events, such as wildfires where the Registrants may be found liable for property damages regardless of fault;

•a high degree of variance between actual and forecasted load or generation that could impact a Registrant's hedging strategy and the cost of balancing its generation resources with its retail load obligations;

•changes in prices, availability and demand for wholesale electricity, coal, natural gas, other fuel sources and fuel transportation that could have a significant impact on generating capacity and energy costs;

•the financial condition, creditworthiness and operational stability of the respective Registrant's significant customers and suppliers;

•changes in business strategy or development plans;

•availability, terms and deployment of capital, including reductions in demand for investment-grade commercial paper, debt securities and other sources of debt financing and volatility in interest rates;

•changes in the respective Registrant's credit ratings;

•risks relating to nuclear generation, including unique operational, closure and decommissioning risks;

•hydroelectric conditions and the cost, feasibility and eventual outcome of hydroelectric relicensing proceedings;

•the impact of certain contracts used to mitigate or manage volume, price and interest rate risk, including increased collateral requirements, and changes in commodity prices, interest rates and other conditions that affect the fair value of certain contracts;

•the impact of inflation on costs and the ability of the respective Registrants to recover such costs in regulated rates;

•fluctuations in foreign currency exchange rates, primarily the British pound and the Canadian dollar;

•increases in employee healthcare costs;

•the impact of investment performance, certain participant elections such as lump sum distributions and changes in interest rates, legislation, healthcare cost trends, mortality, morbidity on pension and other postretirement benefits expense and funding requirements;

•changes in the residential real estate brokerage, mortgage and franchising industries and regulations that could affect brokerage, mortgage and franchising transactions;

•the ability to successfully integrate the portion of the natural gas transmission and storage business acquired from DEI on November 1, 2020, and future acquired operations into a Registrant's business;

•the expected timing and likelihood of completion of the proposed transaction to acquire the remaining portion of DEI's natural gas transmission and storage business, including the ability to obtain the required clearance under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended;

•unanticipated construction delays, changes in costs, receipt of required permits and authorizations, ability to fund capital projects and other factors that could affect future facilities and infrastructure additions;

•the availability and price of natural gas in applicable geographic regions and demand for natural gas supply;

•the impact of new accounting guidance or changes in current accounting estimates and assumptions on the financial results of the respective Registrants; and

•other business or investment considerations that may be disclosed from time to time in the Registrants' filings with the SEC or in other publicly disseminated written documents.

Further details of the potential risks and uncertainties affecting the Registrants are described in the Registrants' filings with the SEC, including Part II, Item 1A and other discussions contained in this Form 10-Q. Each Registrant undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. The foregoing factors should not be construed as exclusive.

Berkshire Hathaway Energy Company and its subsidiaries

Consolidated Financial Section